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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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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.