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move POI FS entries copy methods to new POIUtils class

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1160146 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Sergey Vladimirov 2011-08-22 08:50:48 +00:00
parent 92abc388c7
commit 6afe2d988c
2 changed files with 125 additions and 36 deletions
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58
src/java/org/apache/poi/POIDocument.java
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@ -24,6 +24,8 @@ import java.io.OutputStream;
import java.util.Iterator;
import java.util.List;
import org.apache.poi.util.POIUtils;
import org.apache.poi.hpsf.DocumentSummaryInformation;
import org.apache.poi.hpsf.MutablePropertySet;
import org.apache.poi.hpsf.PropertySet;
@ -237,50 +239,34 @@ public abstract class POIDocument {
* @param target is the target POIFS to copy to
* @param excepts is a list of Strings specifying what nodes NOT to copy
*/
protected void copyNodes(POIFSFileSystem source, POIFSFileSystem target,
List<String> excepts) throws IOException {
//System.err.println("CopyNodes called");
copyNodes(source.getRoot(), target.getRoot(), excepts);
}
@Deprecated
protected void copyNodes( POIFSFileSystem source, POIFSFileSystem target,
List<String> excepts ) throws IOException
{
POIUtils.copyNodes( source, target, excepts );
}
/**
* Copies nodes from one POIFS to the other minus the excepts
* @param source is the source POIFS to copy from
* @param target is the target POIFS to copy to
* @param excepts is a list of Strings specifying what nodes NOT to copy
*/
protected void copyNodes(DirectoryNode sourceRoot, DirectoryNode targetRoot,
List<String> excepts) throws IOException {
Iterator<Entry> entries = sourceRoot.getEntries();
while (entries.hasNext()) {
Entry entry = entries.next();
if (!excepts.contains(entry.getName())) {
copyNodeRecursively(entry,targetRoot);
}
}
}
@Deprecated
protected void copyNodes( DirectoryNode sourceRoot,
DirectoryNode targetRoot, List<String> excepts ) throws IOException
{
POIUtils.copyNodes( sourceRoot, targetRoot, excepts );
}
/**
* Copies an Entry into a target POIFS directory, recursively
*/
@Internal
protected void copyNodeRecursively(Entry entry, DirectoryEntry target)
throws IOException {
//System.err.println("copyNodeRecursively called with "+entry.getName()+
// ","+target.getName());
DirectoryEntry newTarget = null;
if (entry.isDirectoryEntry()) {
newTarget = target.createDirectory(entry.getName());
Iterator<Entry> entries = ((DirectoryEntry)entry).getEntries();
while (entries.hasNext()) {
copyNodeRecursively(entries.next(),newTarget);
}
} else {
DocumentEntry dentry = (DocumentEntry)entry;
DocumentInputStream dstream = new DocumentInputStream(dentry);
target.createDocument(dentry.getName(),dstream);
dstream.close();
}
}
@Deprecated
protected void copyNodeRecursively( Entry entry, DirectoryEntry target )
throws IOException
{
POIUtils.copyNodeRecursively( entry, target );
}
}

103
src/java/org/apache/poi/util/POIUtils.java Normal file
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@ -0,0 +1,103 @@
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
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.apache.poi.util;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import org.apache.poi.poifs.filesystem.DirectoryEntry;
import org.apache.poi.poifs.filesystem.DirectoryNode;
import org.apache.poi.poifs.filesystem.DocumentEntry;
import org.apache.poi.poifs.filesystem.DocumentInputStream;
import org.apache.poi.poifs.filesystem.Entry;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
@Internal
public class POIUtils
{
/**
* Copies an Entry into a target POIFS directory, recursively
*/
@Internal
public static void copyNodeRecursively( Entry entry, DirectoryEntry target )
throws IOException
{
// System.err.println("copyNodeRecursively called with "+entry.getName()+
// ","+target.getName());
DirectoryEntry newTarget = null;
if ( entry.isDirectoryEntry() )
{
newTarget = target.createDirectory( entry.getName() );
Iterator<Entry> entries = ( (DirectoryEntry) entry ).getEntries();
while ( entries.hasNext() )
{
copyNodeRecursively( entries.next(), newTarget );
}
}
else
{
DocumentEntry dentry = (DocumentEntry) entry;
DocumentInputStream dstream = new DocumentInputStream( dentry );
target.createDocument( dentry.getName(), dstream );
dstream.close();
}
}
/**
* Copies nodes from one POIFS to the other minus the excepts
*
* @param source
* is the source POIFS to copy from
* @param target
* is the target POIFS to copy to
* @param excepts
* is a list of Strings specifying what nodes NOT to copy
*/
public static void copyNodes( DirectoryNode sourceRoot,
DirectoryNode targetRoot, List<String> excepts ) throws IOException
{
Iterator<Entry> entries = sourceRoot.getEntries();
while ( entries.hasNext() )
{
Entry entry = entries.next();
if ( !excepts.contains( entry.getName() ) )
{
copyNodeRecursively( entry, targetRoot );
}
}
}
/**
* Copies nodes from one POIFS to the other minus the excepts
*
* @param source
* is the source POIFS to copy from
* @param target
* is the target POIFS to copy to
* @param excepts
* is a list of Strings specifying what nodes NOT to copy
*/
public static void copyNodes( POIFSFileSystem source,
POIFSFileSystem target, List<String> excepts ) throws IOException
{
// System.err.println("CopyNodes called");
copyNodes( source.getRoot(), target.getRoot(), excepts );
}
}