/*
* 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.cocoon.components.sax;
import org.xml.sax.SAXException;
/**
* This a simple xml compiler which takes a byte array as input.
* If you want to reuse this interpreter make sure to call first {@link #recycle()}
* and then set the new consumer for the sax events.
*
* @version $Id$
*/
public final class XMLByteStreamInterpreter extends AbstractXMLByteStreamInterpreter implements XMLDeserializer {
private byte[] input;
private int currentPos;
public void recycle() {
this.input = null;
super.recycle();
}
public void deserialize(Object saxFragment) throws SAXException {
if (!(saxFragment instanceof byte[])) {
throw new SAXException("XMLDeserializer needs byte array for deserialization.");
}
this.input = (byte[])saxFragment;
this.currentPos = 0;
super.parse();
}
protected int read() throws SAXException {
if (currentPos >= input.length)
return -1;
return input[currentPos++] & 0xff;
}
protected int read(byte[] b) throws SAXException {
final int bytesRead = (this.currentPos + b.length > this.input.length ? this.input.length - this.currentPos : b.length);
System.arraycopy(this.input, this.currentPos, b, 0, bytesRead);
this.currentPos += bytesRead;
return bytesRead;
}
}