/*
* 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.pdfbox.pdfparser;
import java.io.IOException;
import org.apache.pdfbox.io.RandomAccessRead;
/**
* A SequentialSource backed by a RandomAccessRead.
*/
final class RandomAccessSource implements SequentialSource
{
private final RandomAccessRead reader;
/**
* Constructor.
*
* @param reader The random access reader to wrap.
*/
RandomAccessSource(RandomAccessRead reader)
{
this.reader = reader;
}
@Override
public int read() throws IOException
{
return reader.read();
}
@Override
public int read(byte[] b) throws IOException
{
return reader.read(b);
}
@Override
public int read(byte[] b, int offset, int length) throws IOException
{
return reader.read(b, offset, length);
}
@Override
public long getPosition() throws IOException
{
return reader.getPosition();
}
@Override
public int peek() throws IOException
{
return reader.peek();
}
@Override
public void unread(int b) throws IOException
{
reader.rewind(1);
}
@Override
public void unread(byte[] bytes) throws IOException
{
reader.rewind(bytes.length);
}
@Override
public byte[] readFully(int length) throws IOException
{
return reader.readFully(length);
}
@Override
public boolean isEOF() throws IOException
{
return reader.isEOF();
}
@Override
public void close() throws IOException
{
reader.close();
}
}