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Added a method to AVMService and its dependent services to get an InputStream

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directly from a node descriptor.  It's a minor optimization for a few use
scenarios.  It's also convenient for accessing content of historical file
versions directly.  
Another CLT, to list the versions of a store.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4496 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Britt Park
2006-12-03 03:55:49 +00:00
parent b947cfc864
commit 03a93a3cf7
13 changed files with 163 additions and 16 deletions
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11
source/java/org/alfresco/repo/avm/AVMRemote.java
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@@ -42,10 +42,17 @@ public interface AVMRemote
* to a server side input stream.
* @param version The version to look under.
* @param path The path to the file.
* @return A handle.
* @return An InputStream.
*/
public InputStream getFileInputStream(int version, String path);
/**
* Get an InputStream from a descriptor directly.
* @param desc The descriptor.
* @return An InputStream.
*/
public InputStream getFileInputStream(AVMNodeDescriptor desc);
/**
* Get an opaque handle to a server side output stream.
* @param path The path to the existing file.
@@ -182,7 +189,7 @@ public interface AVMRemote
* @param store The name of the AVMStore to snapshot.
* @return The version id of the new snapshot.
*/
public int createSnapshot(String store);
public int createSnapshot(String store, String label, String comment);
/**
* Get a List of all versions in a given store.

12
source/java/org/alfresco/repo/avm/AVMRemoteLocal.java
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@@ -97,9 +97,9 @@ public class AVMRemoteLocal implements AVMRemote
/* (non-Javadoc)
* @see org.alfresco.repo.avm.AVMRemote#createSnapshot(java.lang.String)
*/
public int createSnapshot(String store)
public int createSnapshot(String store, String label, String comment)
{
return fService.createSnapshot(store, null, null);
return fService.createSnapshot(store, label, comment);
}
/* (non-Javadoc)
@@ -219,6 +219,14 @@ public class AVMRemoteLocal implements AVMRemote
return fService.getFileInputStream(version, path);
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.AVMRemote#getFileInputStream(org.alfresco.service.cmr.avm.AVMNodeDescriptor)
*/
public InputStream getFileInputStream(AVMNodeDescriptor desc)
{
return fService.getFileInputStream(desc);
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.AVMRemote#getFileOutputStream(java.lang.String)
*/

10
source/java/org/alfresco/repo/avm/AVMRemoteTransport.java
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@@ -31,6 +31,14 @@ public interface AVMRemoteTransport
*/
public String getInputHandle(String ticket, int version, String path);
/**
* Get an input handle from a descriptor.
* @param ticket The authentication ticket.
* @param desc The descriptor.
* @return An input handle.
*/
public String getInputHandle(String ticket, AVMNodeDescriptor desc);
/**
* Read a chunk of data from a handle.
* @param handle The opaque input stream handle.
@@ -199,7 +207,7 @@ public interface AVMRemoteTransport
* @param store The name of the AVMStore to snapshot.
* @return The version id of the new snapshot.
*/
public int createSnapshot(String ticket, String store);
public int createSnapshot(String ticket, String store, String label, String comment);
/**
* Get a List of all versions in a given store.

21
source/java/org/alfresco/repo/avm/AVMRemoteTransportService.java
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@@ -250,6 +250,23 @@ public class AVMRemoteTransportService implements AVMRemoteTransport, Runnable
return handle;
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.AVMRemoteTransport#getInputHandle(java.lang.String, org.alfresco.service.cmr.avm.AVMNodeDescriptor)
*/
public String getInputHandle(String ticket, AVMNodeDescriptor desc)
{
fAuthService.validate(ticket);
InputStream in = fAVMService.getFileInputStream(desc);
String handle = GUID.generate();
synchronized (this)
{
fInputStreams.put(handle, in);
fInputLastAccessTimes.put(handle, System.currentTimeMillis());
fInputBusy.put(handle, false);
}
return handle;
}
/**
* Read a chunk of data from a handle.
* @param handle The opaque input stream handle.
@@ -611,10 +628,10 @@ public class AVMRemoteTransportService implements AVMRemoteTransport, Runnable
* @param store The name of the AVMStore to snapshot.
* @return The version id of the new snapshot.
*/
public int createSnapshot(String ticket, String store)
public int createSnapshot(String ticket, String store, String label, String comment)
{
fAuthService.validate(ticket);
return fAVMService.createSnapshot(store, null, null);
return fAVMService.createSnapshot(store, label, comment);
}
/**

32
source/java/org/alfresco/repo/avm/AVMRepository.java
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@@ -27,6 +27,7 @@ import java.util.List;
import java.util.Map;
import java.util.SortedMap;
import org.alfresco.repo.content.ContentStore;
import org.alfresco.repo.domain.DbAccessControlList;
import org.alfresco.repo.domain.PropertyValue;
import org.alfresco.service.cmr.avm.AVMBadArgumentException;
@@ -41,6 +42,7 @@ import org.alfresco.service.cmr.avm.LayeringDescriptor;
import org.alfresco.service.cmr.avm.VersionDescriptor;
import org.alfresco.service.cmr.repository.ContentData;
import org.alfresco.service.cmr.repository.ContentReader;
import org.alfresco.service.cmr.repository.ContentService;
import org.alfresco.service.cmr.repository.ContentWriter;
import org.alfresco.service.namespace.QName;
import org.alfresco.util.Pair;
@@ -75,6 +77,11 @@ public class AVMRepository
*/
private Issuer fLayerIssuer;
/**
* Reference to the ContentStoreImpl
*/
private ContentStore fContentStore;
/**
* The Lookup Cache instance.
*/
@@ -107,6 +114,14 @@ public class AVMRepository
fLayerIssuer = layerIssuer;
}
/**
* Set the ContentService.
*/
public void setContentStore(ContentStore store)
{
fContentStore = store;
}
/**
* Set the Lookup Cache instance.
* @param cache The instance to set.
@@ -798,6 +813,23 @@ public class AVMRepository
}
}
public InputStream getInputStream(AVMNodeDescriptor desc)
{
AVMNode node = AVMDAOs.Instance().fAVMNodeDAO.getByID(desc.getId());
if (!(node instanceof FileNode))
{
throw new AVMWrongTypeException(desc + " is not a File.");
}
FileNode file = (FileNode)node;
ContentData data = file.getContentData(null);
if (data == null)
{
throw new AVMException(desc + " has no content.");
}
ContentReader reader = fContentStore.getReader(data.getContentUrl());
return reader.getContentInputStream();
}
/**
* Get a listing of a directory.
* @param version The version to look under.

15
source/java/org/alfresco/repo/avm/AVMServiceImpl.java
View File

@@ -108,6 +108,21 @@ public class AVMServiceImpl implements AVMService
return fAVMRepository.getInputStream(version, path);
}
/**
* Get an InputStream from a descriptor.
* @param desc The descriptor.
* @return An InputStream.
* @throws AVMNotFoundException
*/
public InputStream getFileInputStream(AVMNodeDescriptor desc)
{
if (desc == null)
{
throw new AVMBadArgumentException("Illegal Null Argument.");
}
return fAVMRepository.getInputStream(desc);
}
/**
* Get an output stream to a file. Triggers versioning.
*/

1
source/java/org/alfresco/repo/avm/LayeredFileNodeImpl.java
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@@ -247,6 +247,7 @@ class LayeredFileNodeImpl extends FileNodeImpl implements LayeredFileNode
throw new AVMException("Should not be called.");
}
// TODO The lPath argument is unnecessary.
/**
* Get the ContentData for this file.
* @return The ContentData object for this file.

8
source/java/org/alfresco/repo/avm/clt/AVMCopyOut.java
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@@ -50,7 +50,7 @@ public class AVMCopyOut extends AVMCltBase
AVMNodeDescriptor desc = fAVMRemote.lookup(version, path);
if (flags.containsKey("-r"))
{
recursiveCopy(version, desc, args.get(1));
recursiveCopy(desc, args.get(1));
return;
}
if (desc == null)
@@ -105,7 +105,7 @@ public class AVMCopyOut extends AVMCltBase
}
}
private void recursiveCopy(int version, AVMNodeDescriptor src, String dst)
private void recursiveCopy(AVMNodeDescriptor src, String dst)
{
String newDst = dst + File.separator + src.getName();
if (fVerbose)
@@ -119,13 +119,13 @@ public class AVMCopyOut extends AVMCltBase
Map<String, AVMNodeDescriptor> listing = fAVMRemote.getDirectoryListing(src);
for (AVMNodeDescriptor child : listing.values())
{
recursiveCopy(version, child, newDst);
recursiveCopy(child, newDst);
}
return;
}
try
{
InputStream in = fAVMRemote.getFileInputStream(version, src.getPath());
InputStream in = fAVMRemote.getFileInputStream(src);
OutputStream out = new FileOutputStream(newDst);
copyStream(in, out);
}

39
source/java/org/alfresco/repo/avm/clt/AVMLsVersions.java Normal file
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@@ -0,0 +1,39 @@
/**
*
*/
package org.alfresco.repo.avm.clt;
import java.util.List;
import java.util.Map;
import org.alfresco.service.cmr.avm.VersionDescriptor;
/**
* List all versions of a given store.
* @author britt
*/
public class AVMLsVersions extends AVMCltBase
{
private static Object [] flagDefs = { };
private static String USAGE = "usage: AVMLsVersion storename";
/* (non-Javadoc)
* @see org.alfresco.repo.avm.clt.AVMCltBase#run(java.util.Map, java.util.List)
*/
@Override
protected void run(Map<String, List<String>> flags, List<String> args)
{
List<VersionDescriptor> versions = fAVMRemote.getAVMStoreVersions(args.get(0));
for (VersionDescriptor version : versions)
{
System.out.println(version);
}
}
public static void main(String[] args)
{
AVMLsVersions me = new AVMLsVersions();
me.exec(args, flagDefs, 1, USAGE);
}
}

13
source/java/org/alfresco/repo/avm/clt/AVMRemoteImpl.java
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@@ -101,9 +101,9 @@ public class AVMRemoteImpl implements AVMRemote
/* (non-Javadoc)
* @see org.alfresco.repo.avm.AVMRemote#createSnapshot(java.lang.String)
*/
public int createSnapshot(String store)
public int createSnapshot(String store, String label, String comment)
{
return fTransport.createSnapshot(ClientTicketHolder.GetTicket(), store);
return fTransport.createSnapshot(ClientTicketHolder.GetTicket(), store, label, comment);
}
/* (non-Javadoc)
@@ -224,6 +224,15 @@ public class AVMRemoteImpl implements AVMRemote
fTransport);
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.AVMRemote#getFileInputStream(org.alfresco.service.cmr.avm.AVMNodeDescriptor)
*/
public InputStream getFileInputStream(AVMNodeDescriptor desc)
{
return new AVMRemoteInputStream(fTransport.getInputHandle(ClientTicketHolder.GetTicket(), desc),
fTransport);
}
/* (non-Javadoc)
* @see org.alfresco.repo.avm.AVMRemote#getFileOutputStream(java.lang.String)
*/

6
source/java/org/alfresco/repo/avm/clt/AVMSnapshot.java
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@@ -14,7 +14,7 @@ public class AVMSnapshot extends AVMCltBase
{
private static Object [] flagDefs = { };
private static String USAGE = "usage: AVMSnapshot storename";
private static String USAGE = "usage: AVMSnapshot storename label comment";
/* (non-Javadoc)
* @see org.alfresco.repo.avm.clt.AVMCltBase#run(java.util.Map, java.util.List)
@@ -22,7 +22,7 @@ public class AVMSnapshot extends AVMCltBase
@Override
protected void run(Map<String, List<String>> flags, List<String> args)
{
fAVMRemote.createSnapshot(args.get(0));
fAVMRemote.createSnapshot(args.get(0), args.get(1), args.get(2));
}
/**
@@ -31,6 +31,6 @@ public class AVMSnapshot extends AVMCltBase
public static void main(String[] args)
{
AVMSnapshot me = new AVMSnapshot();
me.exec(args, flagDefs, 1, USAGE);
me.exec(args, flagDefs, 3, USAGE);
}
}

8
source/java/org/alfresco/service/cmr/avm/AVMService.java
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@@ -53,6 +53,14 @@ public interface AVMService
*/
public InputStream getFileInputStream(int version, String path);
/**
* Get an InputStream from a descriptor.
* @param desc The descriptor.
* @return An InputStream.
* @throws AVMNotFoundException
*/
public InputStream getFileInputStream(AVMNodeDescriptor desc);
/**
* Get an output stream to a file node. The file must already exist.
* @param path The simple absolute path to the file node.