/*
* Syncany, www.syncany.org
* Copyright (C) 2011-2015 Philipp C. Heckel <philipp.heckel@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.syncany.database;
/**
* The chunk entry represents a single chunk reference in the database model
* and is identified by the chunk's checksum. Due to the fact that the chunk
* entry is a reference, it does not contain the chunk's actual data.
*
* <p>A chunk can appear in a {@link MultiChunkEntry} and in a {@link FileContent}.
*
* @see MultiChunkEntry
* @see FileContent
* @author Philipp C. Heckel <philipp.heckel@gmail.com>
*/
public class ChunkEntry {
private ChunkChecksum checksum;
private int size;
public ChunkEntry(ChunkChecksum checksum, int size) {
this.checksum = checksum;
this.size = size;
}
public void setSize(int chunksize) {
size = chunksize;
}
public int getSize() {
return size;
}
public ChunkChecksum getChecksum() {
return checksum;
}
public void setChecksum(ChunkChecksum checksum) {
this.checksum = checksum;
}
@Override
public String toString() {
return "ChunkEntry [checksum=" + checksum + ", size=" + size + "]";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((checksum == null) ? 0 : checksum.hashCode());
result = prime * result + size;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof ChunkEntry)) {
return false;
}
ChunkEntry other = (ChunkEntry) obj;
if (checksum == null) {
if (other.checksum != null) {
return false;
}
}
else if (!checksum.equals(other.checksum)) {
return false;
}
if (size != other.size) {
return false;
}
return true;
}
public static class ChunkChecksum extends ObjectId {
public ChunkChecksum(byte[] array) {
super(array);
}
public static ChunkChecksum parseChunkChecksum(String s) {
return new ChunkChecksum(ObjectId.parseObjectId(s));
}
}
}