org.apache.xmlgraphics.image.codec.util.SeekableOutputStream Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: SeekableOutputStream.java 1732018 2016-02-24 04:51:06Z gadams $ */
package org.apache.xmlgraphics.image.codec.util;
import java.io.IOException;
import java.io.OutputStream;
import java.io.RandomAccessFile;
/**
* An OutputStream which can seek to an arbitrary offset.
*
* @version $Id: SeekableOutputStream.java 1732018 2016-02-24 04:51:06Z gadams $
*/
public class SeekableOutputStream extends OutputStream {
private RandomAccessFile file;
/**
* Constructs a SeekableOutputStream from a
* RandomAccessFile. Unless otherwise indicated,
* all method invocations are fowarded to the underlying
* RandomAccessFile.
*
* @param file The RandomAccessFile to which calls
* will be forwarded.
* @exception IllegalArgumentException if file is
* null.
*/
public SeekableOutputStream(RandomAccessFile file) {
if (file == null) {
throw new IllegalArgumentException("SeekableOutputStream0");
}
this.file = file;
}
public void write(int b) throws IOException {
file.write(b);
}
public void write(byte[] b) throws IOException {
file.write(b);
}
public void write(byte[] b, int off, int len) throws IOException {
file.write(b, off, len);
}
/**
* Invokes getFD().sync() on the underlying
* RandomAccessFile.
*/
public void flush() throws IOException {
file.getFD().sync();
}
public void close() throws IOException {
file.close();
}
public long getFilePointer() throws IOException {
return file.getFilePointer();
}
public void seek(long pos) throws IOException {
file.seek(pos);
}
}