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/* Copyright (c) 2009 Peter Troshin
*
* JAva Bioinformatics Analysis Web Services (JABAWS) @version: 1.0
*
* This library is free software; you can redistribute it and/or modify it under the terms of the
* Apache License version 2 as published by the Apache Software Foundation
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Apache
* License for more details.
*
* A copy of the license is in apache_license.txt. It is also available here:
* @see: http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Any republication or derived work distributed in source code form
* must include this copyright and license notice.
*/
package compbio.metadata;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
/**
* Represents a chunk of a string data together with the position in a file for
* the next read operation.
*
* @author pvtroshin
*
* @version 1.0 December 2009
*/
@XmlAccessorType(XmlAccessType.FIELD)
public class ChunkHolder {
String chunk;
long position;
private ChunkHolder() {
// JaxB default constructor
// should not be used otherwise
}
public ChunkHolder(String chunk, long position) {
if (position < 0) {
throw new IndexOutOfBoundsException(
"Position in a file could not be negative! Given value: "
+ position);
}
if (chunk == null) {
throw new NullPointerException("Chunk must not be NULL!");
}
this.chunk = chunk;
this.position = position;
}
public String getChunk() {
return chunk;
}
public long getNextPosition() {
return position;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
ChunkHolder ch = null;
if (!(obj instanceof ChunkHolder)) {
ch = (ChunkHolder) obj;
}
if (this.position != ch.position) {
return false;
}
if (!this.chunk.equals(ch.chunk)) {
return false;
}
return true;
}
@Override
public String toString() {
String value = "Position: " + position + "\n";
value += "Chunk size: " + chunk.length() + "\n";
value += "Chunk: " + chunk + "\n";
return value;
}
@Override
public int hashCode() {
return new Long(position + chunk.hashCode()).intValue();
}
}
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