/*
* Copyright 2013 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.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.apache.commons.lang.builder.ToStringStyle;
import org.lilyproject.repository.api.AbsoluteRecordId;
import org.lilyproject.repository.api.IdGenerator;
import org.lilyproject.repository.api.RecordId;
import org.lilyproject.util.ArgumentValidator;
public class AbsoluteRecordIdImpl implements AbsoluteRecordId {
private final String table;
private final RecordId recordId;
public AbsoluteRecordIdImpl(String table, RecordId recordId) {
ArgumentValidator.notNull(table, "table");
ArgumentValidator.notNull(recordId, "recordId");
this.table = table;
this.recordId = recordId;
}
@Override
public RecordId getRecordId() {
return recordId;
}
@Override
public String getTable() {
return table;
}
@Override
public byte[] toBytes() {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
DataOutput dataOutput = new DataOutputStream(byteArrayOutputStream);
byte[] tableBytes = table.getBytes();
byte[] recordIdBytes = recordId.toBytes();
try {
dataOutput.writeInt(tableBytes.length);
dataOutput.write(tableBytes);
dataOutput.writeInt(recordIdBytes.length);
dataOutput.write(recordIdBytes);
} catch (IOException ioe) {
throw new RuntimeException("Error serializing AbsoluteRecordId: " + toString(), ioe);
}
return byteArrayOutputStream.toByteArray();
}
public static AbsoluteRecordId fromBytes(byte[] bytes, IdGenerator idGenerator) {
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(bytes);
DataInput dataInput = new DataInputStream(byteArrayInputStream);
byte[] tableBytes;
byte[] recordIdBytes;
try {
tableBytes = new byte[dataInput.readInt()];
dataInput.readFully(tableBytes, 0, tableBytes.length);
recordIdBytes = new byte[dataInput.readInt()];
dataInput.readFully(recordIdBytes, 0, recordIdBytes.length);
} catch (IOException ioe) {
throw new RuntimeException("Error while deserializing AbsoluteRecordId", ioe);
}
return new AbsoluteRecordIdImpl(new String(tableBytes), idGenerator.fromBytes(recordIdBytes));
}
@Override
public int hashCode() {
return HashCodeBuilder.reflectionHashCode(this);
}
@Override
public boolean equals(Object obj) {
return EqualsBuilder.reflectionEquals(this, obj);
}
@Override
public String toString() {
return ToStringBuilder.reflectionToString(this, ToStringStyle.SHORT_PREFIX_STYLE);
}
}