/* $Id$ */
/**
* 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.manifoldcf.connectorcommon.fuzzyml;
import org.apache.manifoldcf.core.interfaces.*;
import java.io.*;
/** This class represents a receiver for a series of single bytes.
*/
public abstract class SingleByteReceiver extends ByteReceiver
{
protected final byte[] byteBuffer;
/** Constructor */
public SingleByteReceiver(int chunkSize)
{
byteBuffer = new byte[chunkSize];
}
/** Read a byte stream and process bytes.
*@return true if abort signalled, false if end of stream reached.
*/
@Override
public final boolean dealWithBytes(InputStream inputStream)
throws IOException, ManifoldCFException
{
while (true)
{
int amt = inputStream.read(byteBuffer);
if (amt == -1)
return false;
for (int i = 0; i < amt; i++)
{
if (dealWithByte(byteBuffer[i]))
{
return dealWithRemainder(byteBuffer,i+1,amt-(i+1),inputStream);
}
}
}
}
/** Receive a byte.
*@return true to stop further processing.
*/
public abstract boolean dealWithByte(byte b)
throws IOException, ManifoldCFException;
/** Deal with the remainder of the input.
* This is called only when dealWithByte() returns true.
*@param buffer is the buffer of characters that should come first.
*@param offset is the offset within the buffer of the first character.
*@param len is the number of characters in the buffer.
*@param inputStream is the stream that should come after the characters in the buffer.
*@return true to abort, false if the end of the stream has been reached.
*/
protected boolean dealWithRemainder(byte[] buffer, int offset, int len, InputStream inputStream)
throws IOException, ManifoldCFException
{
return true;
}
}