/*
* Copyright 2012 NGDATA nv
*
* Licensed 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.lilyproject.repository.impl.id;
import java.util.Arrays;
import java.util.UUID;
import org.lilyproject.bytes.api.DataInput;
import org.lilyproject.bytes.api.DataOutput;
import org.lilyproject.bytes.impl.DataInputImpl;
import org.lilyproject.bytes.impl.DataOutputImpl;
import org.lilyproject.repository.api.SchemaId;
public class SchemaIdImpl implements SchemaId {
private UUID uuid;
private byte[] bytes;
private String string;
public SchemaIdImpl(UUID uuid) {
this.uuid = uuid;
this.bytes = idToBytes(uuid);
}
public SchemaIdImpl(byte[] id) {
this.bytes = id;
}
public SchemaIdImpl(String id) {
this.string = id;
this.uuid = UUID.fromString(id);
this.bytes = idToBytes(uuid);
}
@Override
public byte[] getBytes() {
return bytes;
}
public String toString() {
if (string == null) {
if (uuid == null) {
DataInput dataInput = new DataInputImpl(bytes);
this.uuid = new UUID(dataInput.readLong(), dataInput.readLong());
}
this.string = uuid.toString();
}
return string;
}
private byte[] idToBytes(UUID uuid) {
DataOutput dataOutput = new DataOutputImpl(16);
dataOutput.writeLong(uuid.getMostSignificantBits());
dataOutput.writeLong(uuid.getLeastSignificantBits());
return dataOutput.toByteArray();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + Arrays.hashCode(bytes);
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
SchemaIdImpl other = (SchemaIdImpl) obj;
if (!Arrays.equals(bytes, other.bytes)) {
return false;
}
return true;
}
}