/* * Copyright (C) 2006 Alfresco, Inc. * * Licensed under the Mozilla Public License version 1.1 * with a permitted attribution clause. You may obtain a * copy of the License at * * http://www.alfresco.org/legal/license.txt * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, * either express or implied. See the License for the specific * language governing permissions and limitations under the * License. */ package org.alfresco.repo.avm; import java.io.File; import java.io.InputStream; import java.io.OutputStream; import java.io.RandomAccessFile; import java.util.Date; import java.util.List; import java.util.Map; import org.alfresco.repo.avm.SuperRepository; import org.alfresco.repo.avm.hibernate.HibernateHelper; import org.alfresco.repo.avm.hibernate.HibernateTxn; import org.alfresco.repo.avm.hibernate.HibernateTxnCallback; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.tool.hbm2ddl.SchemaExport; /** * Implements the AVMService. Stub. * @author britt */ public class AVMServiceImpl implements AVMService { /** * The Hibernate SessionFactory. */ private SessionFactory fSessionFactory; /** * The HibernateTxn. */ private HibernateTxn fTransaction; /** * The SuperRepository for each service thread. */ private SuperRepository fSuperRepository; /** * The storage directory. */ private String fStorage; /** * The node id issuer. */ private Issuer fNodeIssuer; /** * The content id issuer. */ private Issuer fContentIssuer; /** * The layer id issuer. */ private Issuer fLayerIssuer; /** * Basic constructor for the service. * @param createTables Flag for whether tables should be created. */ public AVMServiceImpl() { fSessionFactory = HibernateHelper.GetSessionFactory(); fTransaction = new HibernateTxn(fSessionFactory); } /** * Final initialization of the service. Must be called only on a * fully initialized instance. * @param createTables Whether we should create tables, and a default * repository. */ public void init(boolean createTables) { if (createTables) { SchemaExport se = new SchemaExport(HibernateHelper.GetConfiguration()); se.drop(false, true); se.create(false, true); File storage = new File(fStorage); storage.mkdirs(); fNodeIssuer = new Issuer(fStorage + File.separator + "node", 0L); fContentIssuer = new Issuer(fStorage + File.separator + "content", 0L); fLayerIssuer = new Issuer(fStorage + File.separator + "layer", 0L); fSuperRepository = new SuperRepository(fNodeIssuer, fContentIssuer, fLayerIssuer, fStorage); createRepository("main"); } else { try { fNodeIssuer = new Issuer(fStorage + File.separator + "node"); fContentIssuer = new Issuer(fStorage + File.separator + "content"); fLayerIssuer = new Issuer(fStorage + File.separator + "layer"); fSuperRepository = new SuperRepository(fNodeIssuer, fContentIssuer, fLayerIssuer, fStorage); } catch (Exception e) { // TODO Log this and abort in some useful way. } } } /** * Set the location of file storage. * @param storage */ public void setStorage(String storage) { fStorage = storage; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#getFileInputStream(int, java.lang.String) */ public InputStream getFileInputStream(final int version, final String path) { if (path == null) { throw new AVMBadArgumentException("Null path."); } class HTxnCallback implements HibernateTxnCallback { public InputStream in = null; public void perform(Session session) { fSuperRepository.setSession(session); in = fSuperRepository.getInputStream(version, path); } }; HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.in; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#getFileOutputStream(java.lang.String) */ public OutputStream getFileOutputStream(final String path) { if (path == null) { throw new AVMBadArgumentException("Null path."); } class HTxnCallback implements HibernateTxnCallback { public OutputStream out = null; public void perform(Session session) { fSuperRepository.setSession(session); out = fSuperRepository.getOutputStream(path); } }; HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); return doit.out; } /** * Get a random access file to the given file. * @param version The version to look for (read-only) * @param path The path to the file. * @param access The access mode for RandomAccessFile * @return A Random Access File. */ public RandomAccessFile getRandomAccess(final int version, final String path, final String access) { if (path == null || access == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public RandomAccessFile file; public void perform(Session session) { fSuperRepository.setSession(session); file = fSuperRepository.getRandomAccess(version, path, access); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); return doit.file; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#getFolderListing(int, java.lang.String) */ public List getDirectoryListing(final int version, final String path) { if (path == null) { throw new AVMBadArgumentException("Null path."); } class HTxnCallback implements HibernateTxnCallback { public List listing; public void perform(Session session) { fSuperRepository.setSession(session); listing = fSuperRepository.getListing(version, path); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.listing; } /** * Get a directory listing from a node descriptor. * @param dir The directory node descriptor. * @return A Map of names to node descriptors. */ public Map getDirectoryListing(final AVMNodeDescriptor dir) { if (dir == null) { throw new AVMBadArgumentException("Null descriptor."); } class HTxnCallback implements HibernateTxnCallback { public Map listing; public void perform(Session session) { fSuperRepository.setSession(session); listing = fSuperRepository.getListing(dir); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.listing; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createFile(java.lang.String, java.lang.String) */ public OutputStream createFile(final String path, final String name) { if (path == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public OutputStream out; public void perform(Session session) { fSuperRepository.setSession(session); out = fSuperRepository.createFile(path, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); return doit.out; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createFolder(java.lang.String, java.lang.String) */ public void createDirectory(final String path, final String name) { if (path == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.createDirectory(path, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createLayeredFile(java.lang.String, java.lang.String, java.lang.String) */ public void createLayeredFile(final String srcPath, final String parent, final String name) { if (srcPath == null || parent == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.createLayeredFile(srcPath, parent, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createLayeredFolder(java.lang.String, java.lang.String, java.lang.String) */ public void createLayeredDirectory(final String srcPath, final String parent, final String name) { if (srcPath == null || parent == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.createLayeredDirectory(srcPath, parent, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createRepository(java.lang.String) */ public void createRepository(final String name) { if (name == null) { throw new AVMBadArgumentException("Name is null."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.createRepository(name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createBranch(int, java.lang.String, java.lang.String, java.lang.String) */ public void createBranch(final int version, final String srcPath, final String dstPath, final String name) { if (srcPath == null || dstPath == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.createBranch(version, srcPath, dstPath, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#removeNode(java.lang.String, java.lang.String) */ public void removeNode(final String parent, final String name) { if (parent == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.remove(parent, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#rename(java.lang.String, java.lang.String, java.lang.String, java.lang.String) */ public void rename(final String srcParent, final String srcName, final String dstParent, final String dstName) { if (srcParent == null || srcName == null || dstParent == null || dstName == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.rename(srcParent, srcName, dstParent, dstName); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /** * Uncover a deleted name in a layered directory. * @param dirPath The path to the layered directory. * @param name The name to uncover. */ public void uncover(final String dirPath, final String name) { if (dirPath == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.uncover(dirPath, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#getLatestVersionID(java.lang.String) */ public int getLatestVersionID(final String repName) { if (repName == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public int latestVersionID; public void perform(Session session) { fSuperRepository.setSession(session); latestVersionID = fSuperRepository.getLatestVersionID(repName); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.latestVersionID; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createSnapshot(java.util.List) */ public void createSnapshot(final List repositories) { if (repositories == null) { throw new AVMBadArgumentException("Repositories is null."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.createSnapshot(repositories); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#createSnapshot(java.lang.String) */ public void createSnapshot(final String repository) { if (repository == null) { throw new AVMBadArgumentException("Repository is null."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.createSnapshot(repository); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#lookup(int, java.lang.String) */ public AVMNodeDescriptor lookup(final int version, final String path) { if (path == null) { throw new AVMBadArgumentException("Path is null."); } class HTxnCallback implements HibernateTxnCallback { public AVMNodeDescriptor descriptor; public void perform(Session session) { fSuperRepository.setSession(session); Lookup lookup = fSuperRepository.lookup(version, path); descriptor = lookup.getCurrentNode().getDescriptor(lookup); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.descriptor; } /** * Lookup a node descriptor from a directory node descriptor. * @param dir The node descriptor of the directory. * @param name The name to lookup. * @return The node descriptor of the child. */ public AVMNodeDescriptor lookup(final AVMNodeDescriptor dir, final String name) { if (dir == null || name == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public AVMNodeDescriptor child; public void perform(Session session) { fSuperRepository.setSession(session); child = fSuperRepository.lookup(dir, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.child; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#destroyRepository(java.lang.String) */ public void purgeRepository(final String name) { if (name == null) { throw new AVMBadArgumentException("Name is null."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.purgeRepository(name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#purgeVersion(int, java.lang.String) */ public void purgeVersion(final int version, final String name) { if (name == null) { throw new AVMBadArgumentException("Name is null."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.purgeVersion(name, version); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#getIndirectionPath(java.lang.String) */ public String getIndirectionPath(final int version, final String path) { if (path == null) { throw new AVMBadArgumentException("Path is null."); } class HTxnCallback implements HibernateTxnCallback { public String indirectionPath; public void perform(Session session) { fSuperRepository.setSession(session); indirectionPath = fSuperRepository.getIndirectionPath(version, path); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.indirectionPath; } /* (non-Javadoc) * @see org.alfresco.repo.avm.AVMService#getRepositoryVersions(java.lang.String) */ public List getRepositoryVersions(final String name) { if (name == null) { throw new AVMBadArgumentException("Name is null."); } class HTxnCallback implements HibernateTxnCallback { public List versions; public void perform(Session session) { fSuperRepository.setSession(session); versions = fSuperRepository.getRepositoryVersions(name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.versions; } /** * Get version IDs by creation date. From or to may be null but not * both. * @param name The name of the repository to search. * @param from The earliest versions to return. * @param to The latest versions to return. * @return The Set of matching version IDs. */ public List getRepositoryVersions(final String name, final Date from, final Date to) { if (name == null || (from == null && to == null)) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public List versions; public void perform(Session session) { fSuperRepository.setSession(session); versions = fSuperRepository.getRepositoryVersions(name, from, to); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.versions; } /** * Change what a layered directory points to. */ public void retargetLayeredDirectory(final String path, final String target) { if (path == null || target == null) { throw new AVMBadArgumentException("Illegal null argument."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.retargetLayeredDirectory(path, target); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } /** * Make the indicated directory a primary indirection. * @param path The absolute path. */ public void makePrimary(final String path) { if (path == null) { throw new AVMBadArgumentException("Path is null."); } class HTxnCallback implements HibernateTxnCallback { public void perform(Session session) { fSuperRepository.setSession(session); fSuperRepository.makePrimary(path); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, true); } public List getRepositoryNames() { class HTxnCallback implements HibernateTxnCallback { public List names; public void perform(Session session) { fSuperRepository.setSession(session); names = fSuperRepository.getRepositoryNames(); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.names; } /** * Get a descriptor for the specified repository root. * @param version The version to get. * @param name The name of the repository. * @return The root descriptor. */ public AVMNodeDescriptor getRepositoryRoot(final int version, final String name) { if (name == null) { throw new AVMBadArgumentException("Name is null."); } class HTxnCallback implements HibernateTxnCallback { public AVMNodeDescriptor root; public void perform(Session session) { fSuperRepository.setSession(session); root = fSuperRepository.getRepositoryRoot(version, name); } } HTxnCallback doit = new HTxnCallback(); fTransaction.perform(doit, false); return doit.root; } }