mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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f2c5192a7f
Fixes to AVM filesystem transaction handling. Made SrvSession.beginTransaction() private and added beginReadTransaction() and beginWriteTransaction(). git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4580 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
1957 lines
58 KiB
Java
1957 lines
58 KiB
Java
/*
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* Copyright (C) 2006 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.filesys.avm;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.util.List;
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import java.util.SortedMap;
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import java.util.StringTokenizer;
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import javax.transaction.UserTransaction;
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import org.alfresco.config.ConfigElement;
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import org.alfresco.filesys.alfresco.AlfrescoDiskDriver;
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import org.alfresco.filesys.server.SrvSession;
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import org.alfresco.filesys.server.core.DeviceContext;
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import org.alfresco.filesys.server.core.DeviceContextException;
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import org.alfresco.filesys.server.core.DeviceInterface;
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import org.alfresco.filesys.server.filesys.AccessDeniedException;
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import org.alfresco.filesys.server.filesys.DirectoryNotEmptyException;
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import org.alfresco.filesys.server.filesys.DiskInterface;
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import org.alfresco.filesys.server.filesys.FileAttribute;
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import org.alfresco.filesys.server.filesys.FileExistsException;
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import org.alfresco.filesys.server.filesys.FileInfo;
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import org.alfresco.filesys.server.filesys.FileName;
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import org.alfresco.filesys.server.filesys.FileOpenParams;
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import org.alfresco.filesys.server.filesys.FileStatus;
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import org.alfresco.filesys.server.filesys.NetworkFile;
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import org.alfresco.filesys.server.filesys.PathNotFoundException;
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import org.alfresco.filesys.server.filesys.SearchContext;
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import org.alfresco.filesys.server.filesys.TreeConnection;
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import org.alfresco.filesys.server.pseudo.PseudoFile;
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import org.alfresco.filesys.server.pseudo.PseudoFileList;
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import org.alfresco.filesys.server.pseudo.PseudoFolderNetworkFile;
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import org.alfresco.filesys.server.state.FileState;
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import org.alfresco.filesys.util.StringList;
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import org.alfresco.filesys.util.WildCard;
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import org.alfresco.repo.security.authentication.AuthenticationComponent;
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import org.alfresco.service.cmr.avm.AVMExistsException;
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import org.alfresco.service.cmr.avm.AVMNodeDescriptor;
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import org.alfresco.service.cmr.avm.AVMNotFoundException;
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import org.alfresco.service.cmr.avm.AVMService;
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import org.alfresco.service.cmr.avm.AVMStoreDescriptor;
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import org.alfresco.service.cmr.avm.AVMWrongTypeException;
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import org.alfresco.service.cmr.avm.VersionDescriptor;
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import org.alfresco.service.cmr.repository.MimetypeService;
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import org.alfresco.service.cmr.security.AuthenticationService;
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import org.alfresco.service.transaction.TransactionService;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* AVM Repository Filesystem Driver Class
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*
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* <p>Provides a filesystem interface for various protocols such as SMB/CIFS and FTP.
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*
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* @author GKSpencer
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*/
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public class AVMDiskDriver extends AlfrescoDiskDriver implements DiskInterface {
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// Logging
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private static final Log logger = LogFactory.getLog(AVMDiskDriver.class);
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// Configuration key names
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private static final String KEY_STORE = "storePath";
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private static final String KEY_VERSION = "version";
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private static final String KEY_CREATE = "createStore";
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// AVM path seperator
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public static final char AVM_SEPERATOR = '/';
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public static final String AVM_SEPERATOR_STR = "/";
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// Services and helpers
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private AVMService m_avmService;
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private TransactionService m_transactionService;
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private MimetypeService m_mimetypeService;
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private AuthenticationComponent m_authComponent;
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private AuthenticationService m_authService;
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/**
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* Default constructor
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*/
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public AVMDiskDriver()
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{
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}
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/**
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* Return the AVM service
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*
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* @return AVMService
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*/
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public final AVMService getAvmService()
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{
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return m_avmService;
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}
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/**
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* Return the authentication service
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*
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* @return AuthenticationService
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*/
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public final AuthenticationService getAuthenticationService()
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{
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return m_authService;
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}
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/**
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* Return the transaction service
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*
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* @return TransactionService
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*/
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public final TransactionService getTransactionService()
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{
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return m_transactionService;
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}
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/**
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* Set the AVM service
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*
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* @param avmService AVMService
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*/
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public void setAvmService(AVMService avmService)
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{
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m_avmService = avmService;
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}
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/**
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* Set the transaction service
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*
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* @param transactionService the transaction service
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*/
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public void setTransactionService(TransactionService transactionService)
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{
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m_transactionService = transactionService;
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}
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/**
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* Set the authentication component
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*
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* @param authComponent AuthenticationComponent
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*/
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public void setAuthenticationComponent(AuthenticationComponent authComponent)
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{
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m_authComponent = authComponent;
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}
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/**
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* Set the authentication service
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*
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* @param authService AuthenticationService
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*/
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public void setAuthenticationService(AuthenticationService authService)
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{
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m_authService = authService;
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}
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/**
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* Set the mimetype service
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*
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* @param mimetypeService MimetypeService
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*/
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public void setMimetypeService(MimetypeService mimetypeService)
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{
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m_mimetypeService = mimetypeService;
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}
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/**
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* Parse and validate the parameter string and create a device context object for this instance
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* of the shared device.
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*
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* @param devIface DeviceInterface
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* @param name String
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* @param cfg ConfigElement
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* @return DeviceContext
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* @exception DeviceContextException
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*/
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public DeviceContext createContext(DeviceInterface devIface, String name, ConfigElement cfg)
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throws DeviceContextException
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{
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// Use the system user as the authenticated context for the filesystem initialization
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m_authComponent.setCurrentUser( m_authComponent.getSystemUserName());
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// Wrap the initialization in a transaction
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UserTransaction tx = m_transactionService.getUserTransaction(false);
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AVMContext context = null;
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try
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{
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// Start the transaction
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if ( tx != null)
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tx.begin();
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// Check if the share is a virtualization view
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ConfigElement virtElem = cfg.getChild( "virtualView");
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if ( virtElem != null)
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{
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// Create the context
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context = new AVMContext( name);
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// Enable file state caching
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context.enableStateTable( true, getStateReaper());
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// Get a list of the available AVM stores
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List<AVMStoreDescriptor> storeList = m_avmService.getAVMStores();
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if ( storeList != null && storeList.size() > 0)
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{
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// Create a file state for the root folder that does not expire, and add pseudo files
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// for the stores
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FileState rootState = context.getStateTable().findFileState( FileName.DOS_SEPERATOR_STR, true, true);
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rootState.setExpiryTime( FileState.NoTimeout);
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// Add pseudo files for the stores
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for ( AVMStoreDescriptor storeDesc : storeList)
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{
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// Add a pseudo file for the current store
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rootState.addPseudoFile( new StorePseudoFile( storeDesc));
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}
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}
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}
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else
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{
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// Get the store path
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ConfigElement storeElement = cfg.getChild(KEY_STORE);
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if (storeElement == null || storeElement.getValue() == null || storeElement.getValue().length() == 0)
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throw new DeviceContextException("Device missing init value: " + KEY_STORE);
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String storePath = storeElement.getValue();
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// Get the version if specified, or default to the head version
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int version = AVMContext.VERSION_HEAD;
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ConfigElement versionElem = cfg.getChild(KEY_VERSION);
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if ( versionElem != null)
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{
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// Check if the version is valid
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if ( versionElem.getValue() == null || versionElem.getValue().length() == 0)
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throw new DeviceContextException("Store version not specified");
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// Validate the version id
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try
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{
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version = Integer.parseInt( versionElem.getValue());
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}
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catch ( NumberFormatException ex)
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{
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throw new DeviceContextException("Invalid store version specified, " + versionElem.getValue());
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}
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// Range check the version id
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if ( version < 0 && version != AVMContext.VERSION_HEAD)
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throw new DeviceContextException("Invalid store version id specified, " + version);
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}
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// Check if the create flag is enabled
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ConfigElement createStore = cfg.getChild( KEY_CREATE);
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// Validate the store path
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AVMNodeDescriptor rootNode = m_avmService.lookup( version, storePath);
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if ( rootNode == null)
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{
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// Check if the store should be created
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if ( createStore == null || version != AVMContext.VERSION_HEAD)
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throw new DeviceContextException("Invalid store path/version, " + storePath + " (" + version + ")");
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// Parse the store path
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String storeName = null;
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String path = null;
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int pos = storePath.indexOf(":/");
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if ( pos != -1)
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{
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storeName = storePath.substring(0, pos);
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if ( storePath.length() > pos)
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path = storePath.substring(pos + 2);
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}
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else
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storeName = storePath;
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// Check if the store exists
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AVMStoreDescriptor storeDesc = null;
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try
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{
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storeDesc = m_avmService.getAVMStore( storeName);
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}
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catch (AVMNotFoundException ex)
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{
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}
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// Create a new store if it does not exist
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if ( storeDesc == null)
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m_avmService.createAVMStore( storeName);
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// Check if there is an optional path
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if ( path != null)
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{
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// Split the path
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StringTokenizer tokens = new StringTokenizer( path, AVMPath.AVM_SEPERATOR_STR);
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StringList paths = new StringList();
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while ( tokens.hasMoreTokens())
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paths.addString( tokens.nextToken());
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// Create the path, or folders that do not exist
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AVMPath curPath = new AVMPath( storeName, version, FileName.DOS_SEPERATOR_STR);
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AVMNodeDescriptor curDesc = m_avmService.lookup( curPath.getVersion(), curPath.getAVMPath());
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// Walk the path checking creating each folder as required
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for ( int i = 0; i < paths.numberOfStrings(); i++)
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{
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AVMNodeDescriptor nextDesc = null;
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try
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{
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// Check if the child folder exists
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nextDesc = m_avmService.lookup( curDesc, paths.getStringAt( i));
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}
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catch ( AVMNotFoundException ex)
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{
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}
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// Check if the folder exists
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if ( nextDesc == null)
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{
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// Create the new folder
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m_avmService.createDirectory( curPath.getAVMPath(), paths.getStringAt( i));
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// Get the details of the new folder
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nextDesc = m_avmService.lookup( curDesc, paths.getStringAt( i));
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}
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else if ( nextDesc.isFile())
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throw new DeviceContextException("Path element error, not a folder, " + paths.getStringAt( i));
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// Step to the next level
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curPath.parsePath( storeName, version, curPath.getRelativePath() + paths.getStringAt( i) + FileName.DOS_SEPERATOR_STR);
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curDesc = nextDesc;
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}
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}
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// Validate the store path again
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rootNode = m_avmService.lookup( version, storePath);
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if ( rootNode == null)
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throw new DeviceContextException("Failed to create new store " + storePath);
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}
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// Create the context
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context = new AVMContext( name, storePath, version);
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// Enable file state caching
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context.enableStateTable( true, getStateReaper());
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}
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// Commit the transaction
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tx.commit();
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tx = null;
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}
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catch (Exception ex)
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{
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logger.error("Error during create context", ex);
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// Rethrow the exception
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throw new DeviceContextException("Driver setup error, " + ex.getMessage());
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}
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finally
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{
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// If there is an active transaction then roll it back
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if ( tx != null)
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{
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try
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{
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tx.rollback();
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}
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catch (Exception ex)
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{
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logger.warn("Failed to rollback transaction", ex);
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}
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}
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}
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// Return the context for this shared filesystem
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return context;
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}
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/**
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* Return a list of the available AVM store names
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*
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* @return StringList
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*/
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public final StringList getAVMStoreNames()
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{
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// Use the system user as the authenticated context to get the AVM store list
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m_authComponent.setCurrentUser( m_authComponent.getSystemUserName());
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// Wrap the service request in a transaction
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UserTransaction tx = m_transactionService.getUserTransaction(false);
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StringList storeNames = new StringList();
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try
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{
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// Start the transaction
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if ( tx != null)
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tx.begin();
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// Get the list of AVM stores
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List<AVMStoreDescriptor> storeList = m_avmService.getAVMStores();
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if ( storeList != null)
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{
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for ( AVMStoreDescriptor storeDesc : storeList)
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storeNames.addString( storeDesc.getName());
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}
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// Commit the transaction
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tx.commit();
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tx = null;
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}
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catch (Exception ex)
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{
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logger.error("Error during create context", ex);
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}
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finally
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{
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// If there is an active transaction then roll it back
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if ( tx != null)
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{
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try
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{
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tx.rollback();
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}
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catch (Exception ex)
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{
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logger.warn("Failed to rollback transaction", ex);
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}
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}
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}
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// Return the list of AVM store names
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return storeNames;
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}
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/**
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* Build the full store path for a file/folder using the share relative path
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*
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* @param ctx AVMContext
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* @param path String
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* @return AVMPath
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*/
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protected final AVMPath buildStorePath( AVMContext ctx, String path)
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{
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// Check if the AVM filesystem is a normal or virtualization view
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AVMPath avmPath = null;
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if ( ctx.isVirtualizationView())
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{
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// Create a path for the virtualization view
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avmPath = new AVMPath( path);
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}
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else
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{
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// Create a path to a single store/version
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avmPath = new AVMPath( ctx.getStorePath(), ctx.isVersion(), path);
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}
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// Return the path
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return avmPath;
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}
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/**
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* Close the file.
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*
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* @param sess Server session
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* @param tree Tree connection.
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* @param file Network file context.
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* @exception java.io.IOException If an error occurs.
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*/
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public void closeFile(SrvSession sess, TreeConnection tree, NetworkFile file)
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throws java.io.IOException
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{
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// DEBUG
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if ( logger.isDebugEnabled())
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logger.debug("Close file " + file.getFullName());
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// Close the file
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file.closeFile();
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// Check if the file/directory is marked for delete
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if ( file.hasDeleteOnClose()) {
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// Check for a file or directory
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if ( file.isDirectory())
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deleteDirectory(sess, tree, file.getFullName());
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else
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deleteFile(sess, tree, file.getFullName());
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}
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}
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/**
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* Create a new directory on this file system.
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*
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* @param sess Server session
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* @param tree Tree connection.
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* @param params Directory create parameters
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* @exception java.io.IOException If an error occurs.
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*/
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public void createDirectory(SrvSession sess, TreeConnection tree, FileOpenParams params)
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throws java.io.IOException
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{
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// Check if the filesystem is writable
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AVMContext ctx = (AVMContext) tree.getContext();
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if ( ctx.isVersion() != AVMContext.VERSION_HEAD)
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throw new AccessDeniedException("Cannot create " + params.getPath() + ", filesys not writable");
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|
|
|
// Split the path to get the new folder name and relative path
|
|
|
|
String[] paths = FileName.splitPath( params.getPath());
|
|
|
|
// Convert the relative path to a store path
|
|
|
|
AVMPath storePath = buildStorePath( ctx, paths[0]);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("Create directory params=" + params + ", storePath=" + storePath + ", name=" + paths[1]);
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && storePath.isReadOnlyPseudoPath())
|
|
{
|
|
throw new AccessDeniedException( "Cannot create folder in store/version layer, " + params.getPath());
|
|
}
|
|
|
|
// Create a new file
|
|
|
|
sess.beginWriteTransaction( m_transactionService);
|
|
|
|
try
|
|
{
|
|
// Create the new file entry
|
|
|
|
m_avmService.createDirectory( storePath.getAVMPath(), paths[1]);
|
|
}
|
|
catch ( AVMExistsException ex)
|
|
{
|
|
throw new FileExistsException( params.getPath());
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
throw new FileNotFoundException( params.getPath());
|
|
}
|
|
catch ( AVMWrongTypeException ex)
|
|
{
|
|
throw new FileNotFoundException( params.getPath());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create a new file on the file system.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param params File create parameters
|
|
* @return NetworkFile
|
|
* @exception java.io.IOException If an error occurs.
|
|
*/
|
|
public NetworkFile createFile(SrvSession sess, TreeConnection tree, FileOpenParams params)
|
|
throws java.io.IOException
|
|
{
|
|
// Check if the filesystem is writable
|
|
|
|
AVMContext ctx = (AVMContext) tree.getContext();
|
|
|
|
// Split the path to get the file name and relative path
|
|
|
|
String[] paths = FileName.splitPath( params.getPath());
|
|
|
|
// Convert the relative path to a store path
|
|
|
|
AVMPath storePath = buildStorePath( ctx, paths[0]);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("Create file params=" + params + ", storePath=" + storePath + ", name=" + paths[1]);
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && storePath.isReadOnlyPseudoPath())
|
|
{
|
|
throw new AccessDeniedException( "Cannot create file in store/version layer, " + params.getPath());
|
|
}
|
|
else if ( storePath.getVersion() != AVMContext.VERSION_HEAD)
|
|
{
|
|
throw new AccessDeniedException("Cannot create " + params.getPath() + ", filesys not writable");
|
|
}
|
|
|
|
// Create a new file
|
|
|
|
sess.beginWriteTransaction( m_transactionService);
|
|
|
|
AVMNetworkFile netFile = null;
|
|
|
|
try
|
|
{
|
|
// Create the new file entry
|
|
|
|
m_avmService.createFile( storePath.getAVMPath(), paths[1]).close();
|
|
|
|
// Get the new file details
|
|
|
|
AVMPath fileStorePath = buildStorePath( ctx, params.getPath());
|
|
AVMNodeDescriptor nodeDesc = m_avmService.lookup( fileStorePath.getVersion(), fileStorePath.getAVMPath());
|
|
|
|
if ( nodeDesc != null)
|
|
{
|
|
// Create the network file object for the new file
|
|
|
|
netFile = new AVMNetworkFile( nodeDesc, fileStorePath.getAVMPath(), fileStorePath.getVersion(), m_avmService);
|
|
netFile.setGrantedAccess(NetworkFile.READWRITE);
|
|
netFile.setFullName(params.getPath());
|
|
|
|
// Set the mime-type for the new file
|
|
|
|
netFile.setMimeType( m_mimetypeService.guessMimetype( paths[1]));
|
|
}
|
|
}
|
|
catch ( AVMExistsException ex)
|
|
{
|
|
throw new FileExistsException( params.getPath());
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
throw new FileNotFoundException( params.getPath());
|
|
}
|
|
catch ( AVMWrongTypeException ex)
|
|
{
|
|
throw new FileNotFoundException( params.getPath());
|
|
}
|
|
|
|
// Return the file
|
|
|
|
return netFile;
|
|
}
|
|
|
|
/**
|
|
* Delete the directory from the filesystem.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param dir Directory name.
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public void deleteDirectory(SrvSession sess, TreeConnection tree, String dir)
|
|
throws java.io.IOException
|
|
{
|
|
// Convert the relative path to a store path
|
|
|
|
AVMContext ctx = (AVMContext) tree.getContext();
|
|
AVMPath storePath = buildStorePath( ctx, dir);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("Delete directory, path=" + dir + ", storePath=" + storePath);
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && storePath.isPseudoPath())
|
|
{
|
|
throw new AccessDeniedException( "Cannot delete pseudo folder, " + dir);
|
|
}
|
|
|
|
// Make sure the path is to a folder before deleting it
|
|
|
|
sess.beginWriteTransaction( m_transactionService);
|
|
|
|
try
|
|
{
|
|
AVMNodeDescriptor nodeDesc = m_avmService.lookup( storePath.getVersion(), storePath.getAVMPath());
|
|
if ( nodeDesc != null)
|
|
{
|
|
// Check that we are deleting a folder
|
|
|
|
if ( nodeDesc.isDirectory())
|
|
{
|
|
// Make sure the directory is empty
|
|
|
|
SortedMap<String, AVMNodeDescriptor> fileList = m_avmService.getDirectoryListing( nodeDesc);
|
|
if ( fileList != null && fileList.size() > 0)
|
|
throw new DirectoryNotEmptyException( dir);
|
|
|
|
// Delete the folder
|
|
|
|
m_avmService.removeNode( storePath.getAVMPath());
|
|
}
|
|
else
|
|
throw new IOException( "Delete directory path is not a directory, " + dir);
|
|
}
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
throw new IOException( "Directory not found, " + dir);
|
|
}
|
|
catch ( AVMWrongTypeException ex)
|
|
{
|
|
throw new IOException( "Invalid path, " + dir);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Delete the specified file.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param file NetworkFile
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public void deleteFile(SrvSession sess, TreeConnection tree, String name)
|
|
throws java.io.IOException
|
|
{
|
|
// Convert the relative path to a store path
|
|
|
|
AVMContext ctx = (AVMContext) tree.getContext();
|
|
AVMPath storePath = buildStorePath( ctx, name);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("Delete file, path=" + name + ", storePath=" + storePath);
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && storePath.isPseudoPath())
|
|
{
|
|
throw new AccessDeniedException( "Cannot delete pseudo file, " + name);
|
|
}
|
|
|
|
// Make sure the path is to a file before deleting it
|
|
|
|
sess.beginWriteTransaction( m_transactionService);
|
|
|
|
try
|
|
{
|
|
AVMNodeDescriptor nodeDesc = m_avmService.lookup( storePath.getVersion(), storePath.getAVMPath());
|
|
if ( nodeDesc != null)
|
|
{
|
|
// Check that we are deleting a file
|
|
|
|
if ( nodeDesc.isFile())
|
|
{
|
|
// Delete the file
|
|
|
|
m_avmService.removeNode( storePath.getAVMPath());
|
|
}
|
|
else
|
|
throw new IOException( "Delete file path is not a file, " + name);
|
|
}
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
throw new IOException( "File not found, " + name);
|
|
}
|
|
catch ( AVMWrongTypeException ex)
|
|
{
|
|
throw new IOException( "Invalid path, " + name);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if the specified file exists, and whether it is a file or directory.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param name java.lang.String
|
|
* @return int
|
|
* @see FileStatus
|
|
*/
|
|
public int fileExists(SrvSession sess, TreeConnection tree, String name)
|
|
{
|
|
// Convert the relative path to a store path
|
|
|
|
AVMContext ctx = (AVMContext) tree.getContext();
|
|
AVMPath storePath = buildStorePath( ctx, name);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("File exists check, path=" + name + ", storePath=" + storePath);
|
|
|
|
// Check if the path is valid
|
|
|
|
int status = FileStatus.NotExist;
|
|
|
|
if ( storePath.isValid() == false)
|
|
return status;
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && storePath.isReadOnlyPseudoPath())
|
|
{
|
|
// Find the file state for the pseudo folder
|
|
|
|
FileState fstate = findPseudoState( storePath, ctx);
|
|
|
|
if ( fstate != null)
|
|
{
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug( " Found pseudo file " + fstate);
|
|
|
|
// Check if the pseudo file is a file or folder
|
|
|
|
if ( fstate.isDirectory())
|
|
status = FileStatus.DirectoryExists;
|
|
else
|
|
status = FileStatus.FileExists;
|
|
}
|
|
else
|
|
{
|
|
// Invalid pseudo file path
|
|
|
|
status = FileStatus.NotExist;
|
|
}
|
|
|
|
// Return the file status
|
|
|
|
return status;
|
|
}
|
|
|
|
// Search for the file/folder
|
|
|
|
sess.beginReadTransaction( m_transactionService);
|
|
|
|
AVMNodeDescriptor nodeDesc = m_avmService.lookup( storePath.getVersion(), storePath.getAVMPath());
|
|
|
|
if ( nodeDesc != null)
|
|
{
|
|
// Check if the path is to a file or folder
|
|
|
|
if ( nodeDesc.isDirectory())
|
|
status = FileStatus.DirectoryExists;
|
|
else
|
|
status = FileStatus.FileExists;
|
|
}
|
|
|
|
// Return the file status
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* Flush any buffered output for the specified file.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param file Network file context.
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public void flushFile(SrvSession sess, TreeConnection tree, NetworkFile file)
|
|
throws java.io.IOException
|
|
{
|
|
// Flush the file
|
|
|
|
file.flushFile();
|
|
}
|
|
|
|
/**
|
|
* Get the file information for the specified file.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param name File name/path that information is required for.
|
|
* @return File information if valid, else null
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public FileInfo getFileInformation(SrvSession sess, TreeConnection tree, String name)
|
|
throws java.io.IOException
|
|
{
|
|
// Convert the relative path to a store path
|
|
|
|
AVMContext ctx = (AVMContext) tree.getContext();
|
|
AVMPath storePath = buildStorePath( ctx, name);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("Get file information, path=" + name + ", storePath=" + storePath);
|
|
|
|
// Check if hte path is valid
|
|
|
|
if ( storePath.isValid() == false)
|
|
throw new FileNotFoundException( name);
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && storePath.isReadOnlyPseudoPath())
|
|
{
|
|
// Check if the search path is for the root, a store or version folder
|
|
|
|
if ( storePath.isRootPath())
|
|
{
|
|
// Return dummy file informatiom for the root folder
|
|
|
|
return new FileInfo( name, 0L, FileAttribute.Directory);
|
|
}
|
|
else
|
|
{
|
|
// Find the pseudo file for the store/version folder
|
|
|
|
PseudoFile psFile = findPseudoFolder( storePath, ctx);
|
|
if ( psFile != null)
|
|
{
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug( " Found pseudo file " + psFile);
|
|
return psFile.getFileInfo();
|
|
}
|
|
else
|
|
throw new FileNotFoundException( name);
|
|
}
|
|
}
|
|
|
|
// Search for the file/folder
|
|
|
|
sess.beginReadTransaction( m_transactionService);
|
|
|
|
FileInfo info = null;
|
|
|
|
try
|
|
{
|
|
AVMNodeDescriptor nodeDesc = m_avmService.lookup( ctx.isVersion(), storePath.getAVMPath());
|
|
|
|
if ( nodeDesc != null)
|
|
{
|
|
// Create, and fill in, the file information
|
|
|
|
info = new FileInfo();
|
|
|
|
info.setFileName( nodeDesc.getName());
|
|
|
|
if ( nodeDesc.isFile())
|
|
{
|
|
info.setFileSize( nodeDesc.getLength());
|
|
info.setAllocationSize((nodeDesc.getLength() + 512L) & 0xFFFFFFFFFFFFFE00L);
|
|
}
|
|
else
|
|
info.setFileSize( 0L);
|
|
|
|
info.setAccessDateTime( nodeDesc.getAccessDate());
|
|
info.setCreationDateTime( nodeDesc.getCreateDate());
|
|
info.setModifyDateTime( nodeDesc.getModDate());
|
|
|
|
// Build the file attributes
|
|
|
|
int attr = 0;
|
|
|
|
if ( nodeDesc.isDirectory())
|
|
attr += FileAttribute.Directory;
|
|
|
|
if ( nodeDesc.getName().startsWith( ".") ||
|
|
nodeDesc.getName().equalsIgnoreCase( "Desktop.ini") ||
|
|
nodeDesc.getName().equalsIgnoreCase( "Thumbs.db"))
|
|
attr += FileAttribute.Hidden;
|
|
|
|
// Mark the file/folder as read-only if not the head version
|
|
|
|
if ( ctx.isVersion() != AVMContext.VERSION_HEAD)
|
|
attr += FileAttribute.ReadOnly;
|
|
|
|
info.setFileAttributes( attr);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug(" File info=" + info);
|
|
}
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
throw new FileNotFoundException( name);
|
|
}
|
|
catch ( AVMWrongTypeException ex)
|
|
{
|
|
throw new PathNotFoundException( name);
|
|
}
|
|
|
|
// Return the file information
|
|
|
|
return info;
|
|
}
|
|
|
|
/**
|
|
* Determine if the disk device is read-only.
|
|
*
|
|
* @param sess Server session
|
|
* @param ctx Device context
|
|
* @return boolean
|
|
* @exception java.io.IOException If an error occurs.
|
|
*/
|
|
public boolean isReadOnly(SrvSession sess, DeviceContext ctx)
|
|
throws java.io.IOException
|
|
{
|
|
// Check if the version indicates the head version, only the head is writable
|
|
|
|
AVMContext avmCtx = (AVMContext) ctx;
|
|
return avmCtx.isVersion() == AVMContext.VERSION_HEAD ? true : false;
|
|
}
|
|
|
|
/**
|
|
* Open a file on the file system.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param params File open parameters
|
|
* @return NetworkFile
|
|
* @exception java.io.IOException If an error occurs.
|
|
*/
|
|
public NetworkFile openFile(SrvSession sess, TreeConnection tree, FileOpenParams params)
|
|
throws java.io.IOException
|
|
{
|
|
// Convert the relative path to a store path
|
|
|
|
AVMContext ctx = (AVMContext) tree.getContext();
|
|
AVMPath storePath = buildStorePath( ctx, params.getPath());
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("Open file params=" + params + ", storePath=" + storePath);
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && storePath.isReadOnlyPseudoPath())
|
|
{
|
|
// Check if the path is for the root, a store or version folder
|
|
|
|
if ( storePath.isRootPath())
|
|
{
|
|
// Return a dummy file for the root folder
|
|
|
|
return new PseudoFolderNetworkFile( FileName.DOS_SEPERATOR_STR);
|
|
}
|
|
else
|
|
{
|
|
// Find the pseudo file for the store/version folder
|
|
|
|
PseudoFile psFile = findPseudoFolder( storePath, ctx);
|
|
if ( psFile != null)
|
|
{
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug( " Found pseudo file " + psFile);
|
|
return psFile.getFile( params.getPath());
|
|
}
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// Search for the file/folder
|
|
|
|
sess.beginReadTransaction( m_transactionService);
|
|
|
|
AVMNetworkFile netFile = null;
|
|
|
|
try
|
|
{
|
|
// Get the details of the file/folder
|
|
|
|
AVMNodeDescriptor nodeDesc = m_avmService.lookup( storePath.getVersion(), storePath.getAVMPath());
|
|
|
|
if ( nodeDesc != null)
|
|
{
|
|
// Check if the filesystem is read-only and write access has been requested
|
|
|
|
if ( storePath.getVersion() != AVMContext.VERSION_HEAD && ( params.isReadWriteAccess() || params.isWriteOnlyAccess()))
|
|
throw new AccessDeniedException("File " + params.getPath() + " is read-only");
|
|
|
|
// Create the network file object for the opened file/folder
|
|
|
|
netFile = new AVMNetworkFile( nodeDesc, storePath.getAVMPath(), storePath.getVersion(), m_avmService);
|
|
|
|
if ( params.isReadOnlyAccess() || storePath.getVersion() != AVMContext.VERSION_HEAD)
|
|
netFile.setGrantedAccess(NetworkFile.READONLY);
|
|
else
|
|
netFile.setGrantedAccess(NetworkFile.READWRITE);
|
|
|
|
netFile.setFullName(params.getPath());
|
|
|
|
|
|
// Set the mime-type for the new file
|
|
|
|
netFile.setMimeType( m_mimetypeService.guessMimetype( params.getPath()));
|
|
}
|
|
else
|
|
throw new FileNotFoundException( params.getPath());
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
throw new FileNotFoundException( params.getPath());
|
|
}
|
|
catch ( AVMWrongTypeException ex)
|
|
{
|
|
throw new FileNotFoundException( params.getPath());
|
|
}
|
|
|
|
// Return the file
|
|
|
|
return netFile;
|
|
}
|
|
|
|
/**
|
|
* Read a block of data from the specified file.
|
|
*
|
|
* @param sess Session details
|
|
* @param tree Tree connection
|
|
* @param file Network file
|
|
* @param buf Buffer to return data to
|
|
* @param bufPos Starting position in the return buffer
|
|
* @param siz Maximum size of data to return
|
|
* @param filePos File offset to read data
|
|
* @return Number of bytes read
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public int readFile(SrvSession sess, TreeConnection tree, NetworkFile file, byte[] buf, int bufPos, int siz,
|
|
long filePos)
|
|
throws java.io.IOException
|
|
{
|
|
// Check if the file is a directory
|
|
|
|
if ( file.isDirectory())
|
|
throw new AccessDeniedException();
|
|
|
|
// If the content channel is not open for the file then start a transaction
|
|
|
|
AVMNetworkFile avmFile = (AVMNetworkFile) file;
|
|
|
|
if ( avmFile.hasContentChannel() == false)
|
|
sess.beginReadTransaction( m_transactionService);
|
|
|
|
// Read the file
|
|
|
|
int rdlen = file.readFile(buf, siz, bufPos, filePos);
|
|
|
|
// If we have reached end of file return a zero length read
|
|
|
|
if (rdlen == -1)
|
|
rdlen = 0;
|
|
|
|
// Return the actual read length
|
|
|
|
return rdlen;
|
|
}
|
|
|
|
/**
|
|
* Rename the specified file.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param oldName java.lang.String
|
|
* @param newName java.lang.String
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public void renameFile(SrvSession sess, TreeConnection tree, String oldName, String newName)
|
|
throws java.io.IOException
|
|
{
|
|
// Split the relative paths into parent and file/folder name pairs
|
|
|
|
AVMContext ctx = (AVMContext) tree.getContext();
|
|
|
|
String[] oldPaths = FileName.splitPath( oldName);
|
|
String[] newPaths = FileName.splitPath( newName);
|
|
|
|
// Convert the parent paths to store paths
|
|
|
|
AVMPath oldAVMPath = buildStorePath( ctx, oldPaths[0]);
|
|
AVMPath newAVMPath = buildStorePath( ctx, newPaths[0]);
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
{
|
|
logger.debug("Rename from path=" + oldPaths[0] + ", name=" + oldPaths[1]);
|
|
logger.debug(" new path=" + newPaths[0] + ", name=" + newPaths[1]);
|
|
}
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( ctx.isVirtualizationView() && oldAVMPath.isReadOnlyPseudoPath())
|
|
{
|
|
throw new AccessDeniedException( "Cannot rename folder in store/version layer, " + oldName);
|
|
}
|
|
|
|
// Start a transaction for the rename
|
|
|
|
sess.beginWriteTransaction( m_transactionService);
|
|
|
|
try
|
|
{
|
|
// Rename the file/folder
|
|
|
|
m_avmService.rename( oldAVMPath.getAVMPath(), oldPaths[1], newAVMPath.getAVMPath(), newPaths[1]);
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
throw new IOException( "Source not found, " + oldName);
|
|
}
|
|
catch ( AVMWrongTypeException ex)
|
|
{
|
|
throw new IOException( "Invalid path, " + oldName);
|
|
}
|
|
catch ( AVMExistsException ex)
|
|
{
|
|
throw new FileExistsException( "Destination exists, " + newName);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Seek to the specified file position.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param file Network file.
|
|
* @param pos Position to seek to.
|
|
* @param typ Seek type.
|
|
* @return New file position, relative to the start of file.
|
|
*/
|
|
public long seekFile(SrvSession sess, TreeConnection tree, NetworkFile file, long pos, int typ)
|
|
throws java.io.IOException
|
|
{
|
|
// Check if the file is a directory
|
|
|
|
if ( file.isDirectory())
|
|
throw new AccessDeniedException();
|
|
|
|
// If the content channel is not open for the file then start a transaction
|
|
|
|
AVMNetworkFile avmFile = (AVMNetworkFile) file;
|
|
|
|
if ( avmFile.hasContentChannel() == false)
|
|
sess.beginReadTransaction( m_transactionService);
|
|
|
|
// Set the file position
|
|
|
|
return file.seekFile(pos, typ);
|
|
}
|
|
|
|
/**
|
|
* Set the file information for the specified file.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param name java.lang.String
|
|
* @param info FileInfo
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public void setFileInformation(SrvSession sess, TreeConnection tree, String name, FileInfo info)
|
|
throws java.io.IOException
|
|
{
|
|
// Check if the file is being marked for deletion, check if the file is writable
|
|
|
|
if ( info.hasSetFlag(FileInfo.SetDeleteOnClose) && info.hasDeleteOnClose())
|
|
{
|
|
// If this is not the head version then it's not writable
|
|
|
|
AVMContext avmCtx = (AVMContext) tree.getContext();
|
|
if ( avmCtx.isVersion() != AVMContext.VERSION_HEAD)
|
|
throw new AccessDeniedException( "Store not writable, cannot set delete on close");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start a new search on the filesystem using the specified searchPath that may contain
|
|
* wildcards.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param searchPath File(s) to search for, may include wildcards.
|
|
* @param attrib Attributes of the file(s) to search for, see class SMBFileAttribute.
|
|
* @return SearchContext
|
|
* @exception java.io.FileNotFoundException If the search could not be started.
|
|
*/
|
|
public SearchContext startSearch(SrvSession sess, TreeConnection tree, String searchPath, int attrib)
|
|
throws java.io.FileNotFoundException
|
|
{
|
|
// Access the AVM context
|
|
|
|
AVMContext avmCtx = (AVMContext) tree.getContext();
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug("Start search path=" + searchPath);
|
|
|
|
// Split the search path into relative path and search name
|
|
|
|
String[] paths = FileName.splitPath( searchPath);
|
|
|
|
// Build the store path to the folder being searched
|
|
|
|
AVMPath storePath = buildStorePath( avmCtx, paths[0]);
|
|
|
|
// Check if the filesystem is the virtualization view
|
|
|
|
if ( avmCtx.isVirtualizationView())
|
|
{
|
|
// Check for a search of a pseudo folder
|
|
|
|
if (storePath.isReadOnlyPseudoPath())
|
|
{
|
|
// Get the file state for the folder being searched
|
|
|
|
FileState fstate = findPseudoState( storePath, avmCtx);
|
|
|
|
if ( fstate != null)
|
|
{
|
|
// Get the pseudo file list for the parent directory
|
|
|
|
PseudoFileList searchList = fstate.getPseudoFileList();
|
|
|
|
// Check if this is a single file or wildcard search
|
|
|
|
if ( WildCard.containsWildcards( searchPath))
|
|
{
|
|
// Create the search context, wildcard filter will take care of secondary filtering of the
|
|
// folder listing
|
|
|
|
WildCard wildCardFilter = new WildCard( paths[1], false);
|
|
return new PseudoFileListSearchContext( searchList, attrib, wildCardFilter);
|
|
}
|
|
else
|
|
{
|
|
// Search the pseudo file list for the required file
|
|
|
|
PseudoFile pseudoFile = searchList.findFile( paths[1], false);
|
|
if ( pseudoFile != null)
|
|
{
|
|
// Create a search context using the single file details
|
|
|
|
PseudoFileList singleList = new PseudoFileList();
|
|
singleList.addFile( pseudoFile);
|
|
|
|
return new PseudoFileListSearchContext( singleList, attrib, null);
|
|
}
|
|
}
|
|
}
|
|
|
|
// File not found
|
|
|
|
throw new FileNotFoundException( searchPath);
|
|
}
|
|
else if ( storePath.isLevel() == AVMPath.LevelId.HeadMetaData || storePath.isLevel() == AVMPath.LevelId.VersionMetaData)
|
|
{
|
|
// Return an empty file list for now
|
|
|
|
PseudoFileList metaFiles = new PseudoFileList();
|
|
|
|
return new PseudoFileListSearchContext( metaFiles, attrib, null);
|
|
}
|
|
}
|
|
|
|
// Check if the path is a wildcard search
|
|
|
|
sess.beginReadTransaction( m_transactionService);
|
|
SearchContext context = null;
|
|
|
|
if ( WildCard.containsWildcards( searchPath))
|
|
{
|
|
// Get the file listing for the folder
|
|
|
|
AVMNodeDescriptor[] fileList = m_avmService.getDirectoryListingArray( storePath.getVersion(), storePath.getAVMPath(), false);
|
|
|
|
// Create the search context
|
|
|
|
if ( fileList != null) {
|
|
|
|
// DEBUG
|
|
|
|
if ( logger.isDebugEnabled())
|
|
logger.debug(" Wildcard search returned " + fileList.length + " files");
|
|
|
|
// Create the search context, wildcard filter will take care of secondary filtering of the
|
|
// folder listing
|
|
|
|
WildCard wildCardFilter = new WildCard( paths[1], false);
|
|
context = new AVMSearchContext( fileList, attrib, wildCardFilter);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Single file/folder search, convert the path to a store path
|
|
|
|
storePath = buildStorePath( avmCtx, searchPath);
|
|
|
|
// Get the single file/folder details
|
|
|
|
AVMNodeDescriptor nodeDesc = m_avmService.lookup( storePath.getVersion(), storePath.getAVMPath());
|
|
|
|
if ( nodeDesc != null)
|
|
{
|
|
// Create the search context for the single file/folder
|
|
|
|
context = new AVMSingleFileSearchContext( nodeDesc);
|
|
}
|
|
|
|
}
|
|
|
|
// Return the search context
|
|
|
|
return context;
|
|
}
|
|
|
|
/**
|
|
* Truncate a file to the specified size
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param file Network file details
|
|
* @param siz New file length
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public void truncateFile(SrvSession sess, TreeConnection tree, NetworkFile file, long siz)
|
|
throws java.io.IOException
|
|
{
|
|
// Check if the file is a directory, or only has read access
|
|
|
|
if ( file.getGrantedAccess() == NetworkFile.READONLY)
|
|
throw new AccessDeniedException();
|
|
|
|
// If the content channel is not open for the file then start a transaction
|
|
|
|
AVMNetworkFile avmFile = (AVMNetworkFile) file;
|
|
|
|
if ( avmFile.hasContentChannel() == false || avmFile.isWritable() == false)
|
|
sess.beginWriteTransaction( m_transactionService);
|
|
|
|
// Truncate or extend the file
|
|
|
|
file.truncateFile(siz);
|
|
file.flushFile();
|
|
}
|
|
|
|
/**
|
|
* Write a block of data to the file.
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
* @param file Network file details
|
|
* @param buf byte[] Data to be written
|
|
* @param bufoff Offset within the buffer that the data starts
|
|
* @param siz int Data length
|
|
* @param fileoff Position within the file that the data is to be written.
|
|
* @return Number of bytes actually written
|
|
* @exception java.io.IOException The exception description.
|
|
*/
|
|
public int writeFile(SrvSession sess, TreeConnection tree, NetworkFile file, byte[] buf, int bufoff, int siz,
|
|
long fileoff)
|
|
throws java.io.IOException
|
|
{
|
|
// Check if the file is a directory, or only has read access
|
|
|
|
if ( file.isDirectory() || file.getGrantedAccess() == NetworkFile.READONLY)
|
|
throw new AccessDeniedException();
|
|
|
|
// If the content channel is not open for the file, or the channel is not writable, then start a transaction
|
|
|
|
AVMNetworkFile avmFile = (AVMNetworkFile) file;
|
|
|
|
if ( avmFile.hasContentChannel() == false || avmFile.isWritable() == false)
|
|
sess.beginWriteTransaction( m_transactionService);
|
|
|
|
// Write the data to the file
|
|
|
|
file.writeFile(buf, siz, bufoff, fileoff);
|
|
|
|
// Return the actual write length
|
|
|
|
return siz;
|
|
}
|
|
|
|
/**
|
|
* Connection opened to this disk device
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
*/
|
|
public void treeClosed(SrvSession sess, TreeConnection tree)
|
|
{
|
|
// Nothing to do
|
|
}
|
|
|
|
/**
|
|
* Connection closed to this device
|
|
*
|
|
* @param sess Server session
|
|
* @param tree Tree connection
|
|
*/
|
|
public void treeOpened(SrvSession sess, TreeConnection tree)
|
|
{
|
|
// Nothing to do
|
|
}
|
|
|
|
/**
|
|
* Find the pseudo file for a virtual path
|
|
*
|
|
* @param avmPath AVMPath
|
|
* @param avmCtx AVMContext
|
|
* @return PseudoFile
|
|
*/
|
|
private final PseudoFile findPseudoFolder( AVMPath avmPath, AVMContext avmCtx)
|
|
{
|
|
// Check if the path is to a store pseudo folder
|
|
|
|
if ( avmPath.isRootPath())
|
|
return null;
|
|
|
|
// Get the file state for the parent of the required folder
|
|
|
|
FileState fstate = null;
|
|
StringBuilder str = null;
|
|
PseudoFile psFile = null;
|
|
|
|
switch ( avmPath.isLevel())
|
|
{
|
|
// Store root folder
|
|
|
|
case StoreRoot:
|
|
|
|
// Get the root folder file state
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( FileName.DOS_SEPERATOR_STR);
|
|
if ( fstate != null)
|
|
psFile = fstate.getPseudoFileList().findFile( avmPath.getStoreName(), false);
|
|
break;
|
|
|
|
// Versions root or Head folder
|
|
|
|
case VersionRoot:
|
|
case Head:
|
|
|
|
// Create a path to the parent store
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
|
|
// Find/create the file state for the store
|
|
|
|
AVMPath storePath = new AVMPath( str.toString());
|
|
fstate = findPseudoState( storePath, avmCtx);
|
|
|
|
// Find the version root or head pseudo folder
|
|
|
|
if ( fstate != null)
|
|
{
|
|
if ( avmPath.isLevel() == AVMPath.LevelId.Head)
|
|
psFile = fstate.getPseudoFileList().findFile( AVMPath.VersionNameHead, true);
|
|
else
|
|
psFile = fstate.getPseudoFileList().findFile( AVMPath.VersionsFolder, true);
|
|
}
|
|
break;
|
|
|
|
// Version folder
|
|
|
|
case Version:
|
|
|
|
// Create a path to the versions folder
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( AVMPath.VersionsFolder);
|
|
|
|
// Find/create the file state for the store
|
|
|
|
AVMPath verrootPath = new AVMPath( str.toString());
|
|
fstate = findPseudoState( verrootPath, avmCtx);
|
|
|
|
// Find the version pseudo file
|
|
|
|
if ( fstate != null)
|
|
{
|
|
// Build the version folder name string
|
|
|
|
str.setLength( 0);
|
|
|
|
str.append( AVMPath.VersionFolderPrefix);
|
|
str.append( avmPath.getVersion());
|
|
|
|
// find the version folder pseduo file
|
|
|
|
psFile = fstate.getPseudoFileList().findFile( str.toString(), true);
|
|
}
|
|
break;
|
|
|
|
// Head data or metadata folder
|
|
|
|
case HeadData:
|
|
case HeadMetaData:
|
|
|
|
// Create a path to the head folder
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( AVMPath.VersionNameHead);
|
|
|
|
// Find/create the file state for the store
|
|
|
|
AVMPath headPath = new AVMPath( str.toString());
|
|
fstate = findPseudoState( headPath, avmCtx);
|
|
|
|
// Find the data or metadata pseudo folder
|
|
|
|
if ( fstate != null)
|
|
{
|
|
// Find the pseudo folder
|
|
|
|
if ( avmPath.isLevel() == AVMPath.LevelId.HeadData)
|
|
{
|
|
psFile = fstate.getPseudoFileList().findFile( AVMPath.DataFolder, true);
|
|
}
|
|
else
|
|
{
|
|
psFile = fstate.getPseudoFileList().findFile( AVMPath.MetaDataFolder, true);
|
|
}
|
|
}
|
|
break;
|
|
|
|
// Version data or metadata folder
|
|
|
|
case VersionData:
|
|
case VersionMetaData:
|
|
|
|
// Create a path to the version folder
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( AVMPath.VersionFolderPrefix);
|
|
str.append( avmPath.getVersion());
|
|
|
|
// Find/create the file state for the store
|
|
|
|
AVMPath verPath = new AVMPath( str.toString());
|
|
fstate = findPseudoState( verPath, avmCtx);
|
|
|
|
// Find the data or metadata pseudo folder
|
|
|
|
if ( fstate != null)
|
|
{
|
|
// Find the pseudo folder
|
|
|
|
if ( avmPath.isLevel() == AVMPath.LevelId.VersionData)
|
|
{
|
|
psFile = fstate.getPseudoFileList().findFile( AVMPath.DataFolder, true);
|
|
}
|
|
else
|
|
{
|
|
psFile = fstate.getPseudoFileList().findFile( AVMPath.MetaDataFolder, true);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Return the pseudo file, or null if not found
|
|
|
|
return psFile;
|
|
}
|
|
|
|
/**
|
|
* Find the file state for a pseudo folder path
|
|
*
|
|
* @param avmPath AVMPath
|
|
* @param avmCtx AVMContext
|
|
* @return FileState
|
|
*/
|
|
private final FileState findPseudoState( AVMPath avmPath, AVMContext avmCtx)
|
|
{
|
|
// Make sure the is to a pseudo file/folder
|
|
|
|
if ( avmPath.isPseudoPath() == false)
|
|
return null;
|
|
|
|
// Check if the path is to a store pseudo folder
|
|
|
|
FileState fstate = null;
|
|
StringBuilder str = null;
|
|
|
|
switch ( avmPath.isLevel())
|
|
{
|
|
// Root of the hieararchy
|
|
|
|
case Root:
|
|
|
|
// Get the root path file state
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( FileName.DOS_SEPERATOR_STR);
|
|
break;
|
|
|
|
// Store folder
|
|
|
|
case StoreRoot:
|
|
|
|
// Build the path to the parent store folder
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
|
|
// Search for the file state for the store pseudo folder
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( str.toString());
|
|
|
|
if ( fstate == null)
|
|
{
|
|
// Create a file state for the store path
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( str.toString(), true, true);
|
|
|
|
// Add a pseudo file for the head version
|
|
|
|
fstate.addPseudoFile( new VersionPseudoFile( AVMPath.VersionNameHead));
|
|
|
|
// Add a pseudo file for the version root folder
|
|
|
|
fstate.addPseudoFile( new DummyFolderPseudoFile( AVMPath.VersionsFolder));
|
|
}
|
|
break;
|
|
|
|
// Head folder
|
|
|
|
case Head:
|
|
|
|
// Build the path to the store head version folder
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( AVMPath.VersionNameHead);
|
|
|
|
// Search for the file state for the store head version pseudo folder
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( str.toString());
|
|
|
|
if ( fstate == null)
|
|
{
|
|
// Create a file state for the store head folder path
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( str.toString(), true, true);
|
|
|
|
// Add a pseudo file for the data pseudo folder
|
|
|
|
fstate.addPseudoFile( new DummyFolderPseudoFile( AVMPath.DataFolder));
|
|
|
|
// Add a pseudo file for the metadata pseudo folder
|
|
|
|
fstate.addPseudoFile( new DummyFolderPseudoFile( AVMPath.MetaDataFolder));
|
|
}
|
|
break;
|
|
|
|
// Version root folder
|
|
|
|
case VersionRoot:
|
|
|
|
// Get the list of AVM store versions
|
|
|
|
try
|
|
{
|
|
// Build the path to the parent store folder
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( AVMPath.VersionsFolder);
|
|
|
|
// Create a file state for the store path
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( str.toString(), true, true);
|
|
|
|
// Add pseudo folders if the list is empty
|
|
|
|
if ( fstate.hasPseudoFiles() == false)
|
|
{
|
|
// Build the version folder name for the head version
|
|
|
|
StringBuilder verStr = new StringBuilder( AVMPath.VersionFolderPrefix);
|
|
verStr.append( "-1");
|
|
|
|
// Add a pseudo file for the head version
|
|
|
|
fstate.addPseudoFile( new VersionPseudoFile( verStr.toString()));
|
|
|
|
// Get the list of versions for the store
|
|
|
|
List<VersionDescriptor> verList = m_avmService.getAVMStoreVersions( avmPath.getStoreName());
|
|
|
|
// Add pseudo files for the versions to the store state
|
|
|
|
if ( verList.size() > 0)
|
|
{
|
|
for ( VersionDescriptor verDesc : verList)
|
|
{
|
|
// Generate the version string
|
|
|
|
String verName = null;
|
|
|
|
verStr.setLength( AVMPath.VersionFolderPrefix.length());
|
|
verStr.append( verDesc.getVersionID());
|
|
|
|
verName = verStr.toString();
|
|
|
|
// Add the version pseudo folder
|
|
|
|
fstate.addPseudoFile( new VersionPseudoFile ( verName, verDesc));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
catch ( AVMNotFoundException ex)
|
|
{
|
|
// Invalid store name
|
|
}
|
|
break;
|
|
|
|
// Version folder
|
|
|
|
case Version:
|
|
|
|
// Build the path to the store version folder
|
|
|
|
str = new StringBuilder();
|
|
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( avmPath.getStoreName());
|
|
str.append( FileName.DOS_SEPERATOR);
|
|
str.append( AVMPath.VersionFolderPrefix);
|
|
str.append( avmPath.getVersion());
|
|
|
|
// Search for the file state for the version pseudo folder
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( str.toString());
|
|
|
|
if ( fstate == null)
|
|
{
|
|
// Create a file state for the version folder path
|
|
|
|
fstate = avmCtx.getStateTable().findFileState( str.toString(), true, true);
|
|
|
|
// Add a pseudo file for the data pseudo folder
|
|
|
|
fstate.addPseudoFile( new DummyFolderPseudoFile( AVMPath.DataFolder));
|
|
|
|
// Add a pseudo file for the metadata pseudo folder
|
|
|
|
fstate.addPseudoFile( new DummyFolderPseudoFile( AVMPath.MetaDataFolder));
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Return the file state
|
|
|
|
return fstate;
|
|
}
|
|
}
|