org.codehaus.plexus.archiver.zip.AddedDirs Maven / Gradle / Ivy
/**
*
* Copyright 2015 The Apache Software Foundation
*
* Licensed 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.codehaus.plexus.archiver.zip;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Set;
import java.util.Stack;
/**
* A list of directories that have been added to an archive.
*/
public class AddedDirs
{
private final Hashtable addedDirs = new Hashtable();
public Stack asStringStack( String entry )
{
Stack directories = new Stack();
// Don't include the last entry itself if it's
// a dir; it will be added on its own.
int slashPos = entry.length() - ( entry.endsWith( "/" ) ? 1 : 0 );
while ( ( slashPos = entry.lastIndexOf( '/', slashPos - 1 ) ) != -1 )
{
String dir = entry.substring( 0, slashPos + 1 );
if ( addedDirs.contains( dir ) )
{
break;
}
directories.push( dir );
}
return directories;
}
public void clear()
{
addedDirs.clear();
}
/**
* Adds the path to this list.
*
* @param vPath The path to add.
*
* @return true if the path was not present, false if it already existed.
*/
public boolean update( String vPath )
{
if ( addedDirs.get( vPath ) != null )
{
// don't add directories we've already added.
// no warning if we try, it is harmless in and of itself
return true;
}
addedDirs.put( vPath, vPath );
return false;
}
public Set allAddedDirs()
{
return new HashSet( addedDirs.keySet() );
}
}