/*
* 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.commons.net.ftp.parser;
import org.apache.commons.net.ftp.FTPFile;
import org.apache.commons.net.ftp.FTPFileEntryParser;
import org.apache.commons.net.ftp.FTPFileEntryParserImpl;
/**
* This implementation allows to pack some FileEntryParsers together
* and handle the case where to returned dirstyle isnt clearly defined.
* The matching parser will be cached.
* If the cached parser wont match due to the server changed the dirstyle,
* a new matching parser will be searched.
*
* @author Mario Ivankovits <mario@ops.co.at>
*/
public class CompositeFileEntryParser extends FTPFileEntryParserImpl
{
private final FTPFileEntryParser[] ftpFileEntryParsers;
private FTPFileEntryParser cachedFtpFileEntryParser;
public CompositeFileEntryParser(FTPFileEntryParser[] ftpFileEntryParsers)
{
super();
this.cachedFtpFileEntryParser = null;
this.ftpFileEntryParsers = ftpFileEntryParsers;
}
public FTPFile parseFTPEntry(String listEntry)
{
if (cachedFtpFileEntryParser != null)
{
FTPFile matched = cachedFtpFileEntryParser.parseFTPEntry(listEntry);
if (matched != null)
{
return matched;
}
}
else
{
for (int iterParser=0; iterParser < ftpFileEntryParsers.length; iterParser++)
{
FTPFileEntryParser ftpFileEntryParser = ftpFileEntryParsers[iterParser];
FTPFile matched = ftpFileEntryParser.parseFTPEntry(listEntry);
if (matched != null)
{
cachedFtpFileEntryParser = ftpFileEntryParser;
return matched;
}
}
}
return null;
}
}