/*
* Copyright 2010 Cloud.com, Inc.
*
* 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 com.cloud.bridge.util;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.activation.DataSource;
import org.apache.log4j.Logger;
/**
* @author Kelven Yang
*/
public class FileRangeDataSource implements DataSource {
protected final static Logger logger = Logger.getLogger(FileRangeDataSource.class);
private FileRangeInputStream is;
public FileRangeDataSource(File file, long startPos, long endPos) throws IOException {
is = new FileRangeInputStream(file, startPos, endPos);
}
@Override
public String getContentType() {
assert(false);
return null;
}
@Override
public InputStream getInputStream() throws IOException {
return is;
}
@Override
public String getName() {
assert(false);
return null;
}
@Override
public OutputStream getOutputStream() throws IOException {
assert(false);
return null;
}
}