/*
* Copyright 2002-2017 the original author or authors.
*
* 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.springframework.integration.ftp.inbound;
import org.apache.commons.net.ftp.FTPFile;
import org.springframework.expression.common.LiteralExpression;
import org.springframework.integration.file.remote.session.Session;
import org.springframework.integration.file.remote.session.SessionFactory;
import org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer;
import org.springframework.integration.ftp.filters.FtpPersistentAcceptOnceFileListFilter;
import org.springframework.integration.metadata.SimpleMetadataStore;
/**
* An implementation of {@link AbstractInboundFileSynchronizer} for FTP.
*
* @author Iwein Fuld
* @author Josh Long
* @author Mark Fisher
* @author Artem Bilan
* @since 2.0
*/
public class FtpInboundFileSynchronizer extends AbstractInboundFileSynchronizer<FTPFile> {
/**
* Create a synchronizer with the {@link SessionFactory} used to acquire {@link Session} instances.
* @param sessionFactory The session factory.
*/
public FtpInboundFileSynchronizer(SessionFactory<FTPFile> sessionFactory) {
super(sessionFactory);
doSetRemoteDirectoryExpression(new LiteralExpression(null));
doSetFilter(new FtpPersistentAcceptOnceFileListFilter(new SimpleMetadataStore(), "ftpMessageSource"));
}
@Override
protected boolean isFile(FTPFile file) {
return file != null && file.isFile();
}
@Override
protected String getFilename(FTPFile file) {
return (file != null ? file.getName() : null);
}
@Override
protected long getModified(FTPFile file) {
return file.getTimestamp().getTimeInMillis();
}
}