/*
* The MIT License (MIT)
*
* Copyright (c) 2007-2015 Broad Institute
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.broad.igv.util.stream;
import htsjdk.samtools.seekablestream.ISeekableStreamFactory;
import htsjdk.samtools.seekablestream.SeekableFileStream;
import htsjdk.samtools.seekablestream.SeekableStream;
import org.broad.igv.util.HttpUtils;
import java.io.File;
import java.io.IOException;
import java.net.URL;
/**
* @author Jim Robinson
*/
public class IGVSeekableStreamFactory implements ISeekableStreamFactory {
private static IGVSeekableStreamFactory instance;
static{
instance = new IGVSeekableStreamFactory();
}
private IGVSeekableStreamFactory(){}
public static IGVSeekableStreamFactory getInstance(){
return instance;
}
public SeekableStream getStreamFor(URL url) throws IOException{
return getStreamFor(url.toExternalForm());
}
public SeekableStream getStreamFor(String path) throws IOException {
if (path.endsWith(".list")) {
return new SeekableSplitStream(path);
} else {
SeekableStream is = null;
if (path.toLowerCase().startsWith("http:") || path.toLowerCase().startsWith("https:")) {
final URL url = new URL(path);
boolean useByteRange = HttpUtils.getInstance().useByteRange(url);
if (useByteRange) {
is = new IGVSeekableHTTPStream(url);
} else {
is = new SeekableServiceStream(url);
}
} else if (path.toLowerCase().startsWith("ftp:")) {
final URL url = new URL(path);
is = new IGVSeekableFTPStream(url);
} else {
is = new SeekableFileStream(new File(path));
}
return is;
}
}
public SeekableStream getBufferedStream(SeekableStream stream){
return getBufferedStream(stream, IGVSeekableBufferedStream.DEFAULT_BUFFER_SIZE);
}
public SeekableStream getBufferedStream(SeekableStream stream, int bufferSize){
return new IGVSeekableBufferedStream(stream, bufferSize);
}
}