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/*
* Copyright (c) 2006 Israfil Consulting Services Corporation
* Copyright (c) 2006 Christian Edward Gruber
* All Rights Reserved
*
* This software is licensed under the Berkeley Standard Distribution license,
* (BSD license), as defined below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of Israfil Consulting Services nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* $Id: Dynamic.java 14 2006-01-27 23:50:37Z cgruber $
*/
package net.israfil.foundation.concurrent.producers;
import java.io.IOException;
import java.io.Reader;
import java.nio.CharBuffer;
import java.util.concurrent.TimeUnit;
import net.israfil.foundation.concurrent.ConcurrentProducer;
/**
* A provider that reads an input stream and creates strings out of lines
* of text.
*
* @author <a href="cgruber@israfil.net">Christian Edward Gruber</a>
*/
public class ReaderStringProducer implements ConcurrentProducer<String> {
Reader reader = null;
public ReaderStringProducer(Reader reader) {
this.reader = reader;
}
public String produce() {
CharBuffer cb = CharBuffer.allocate(1024);
int count = 0;
try {
int val = reader.read();
while (val != -1) {
cb.append( (char)val );
count++;
if ((char)val == '\n') break;
val = reader.read();
}
if (count == 0 && val == -1) return null;
} catch (IOException e) { return null; }
char[] finalarray = new char[count];
cb.position(0);
cb.get(finalarray);
return new String(finalarray);
}
public String produce(long timeout, TimeUnit unit) throws InterruptedException {
throw new UnsupportedOperationException("Timeouts not supported. Use produce()");
}
}
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