/*
* (C) 2007-2012 Alibaba Group Holding Limited.
*
* 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.
* Authors:
* wuhua <wq163@163.com> , boyan <killme2008@gmail.com>
*/
package com.taobao.metamorphosis.network;
import org.apache.commons.lang.StringUtils;
import com.taobao.gecko.core.buffer.IoBuffer;
import com.taobao.gecko.core.command.CommandHeader;
import com.taobao.gecko.core.command.RequestCommand;
import com.taobao.metamorphosis.transaction.TransactionInfo;
/**
* ��������,Э���ʽ���£�</br> transaction transactionKey sessionId type [timeout]
* [uniqueQualifier] opaque\r\n
*
*
* @author boyan
*
*/
public class TransactionCommand implements RequestCommand, MetaEncodeCommand {
private TransactionInfo transactionInfo;
private final Integer opaque;
static final long serialVersionUID = -1L;
@Override
public Integer getOpaque() {
return this.opaque;
}
@Override
public CommandHeader getRequestHeader() {
return this;
}
public TransactionCommand(final TransactionInfo transactionInfo, final Integer opaque) {
super();
this.transactionInfo = transactionInfo;
this.opaque = opaque;
}
public TransactionInfo getTransactionInfo() {
return this.transactionInfo;
}
public void setTransactionInfo(final TransactionInfo transactionInfo) {
this.transactionInfo = transactionInfo;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (this.opaque == null ? 0 : this.opaque.hashCode());
result = prime * result + (this.transactionInfo == null ? 0 : this.transactionInfo.hashCode());
return result;
}
@Override
public boolean equals(final Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (this.getClass() != obj.getClass()) {
return false;
}
final TransactionCommand other = (TransactionCommand) obj;
if (this.opaque == null) {
if (other.opaque != null) {
return false;
}
}
else if (!this.opaque.equals(other.opaque)) {
return false;
}
if (this.transactionInfo == null) {
if (other.transactionInfo != null) {
return false;
}
}
else if (!this.transactionInfo.equals(other.transactionInfo)) {
return false;
}
return true;
}
@Override
public IoBuffer encode() {
final String transactionKey = this.transactionInfo.getTransactionId().getTransactionKey();
final String type = this.transactionInfo.getType().name();
int capacity =
17 + transactionKey.length() + this.transactionInfo.getSessionId().length() + type.length()
+ ByteUtils.stringSize(this.opaque);
if (this.transactionInfo.getTimeout() > 0) {
capacity += 1 + ByteUtils.stringSize(this.transactionInfo.getTimeout());
}
if (!StringUtils.isBlank(this.transactionInfo.getUniqueQualifier())) {
capacity += 1 + this.transactionInfo.getUniqueQualifier().length();
}
final IoBuffer buffer = IoBuffer.allocate(capacity);
if (this.transactionInfo.getTimeout() > 0) {
if (StringUtils.isBlank(this.transactionInfo.getUniqueQualifier())) {
ByteUtils.setArguments(buffer, MetaEncodeCommand.TRANS_CMD, transactionKey,
this.transactionInfo.getSessionId(), type, this.transactionInfo.getTimeout(), this.opaque);
}
else {
ByteUtils.setArguments(buffer, MetaEncodeCommand.TRANS_CMD, transactionKey,
this.transactionInfo.getSessionId(), type, this.transactionInfo.getTimeout(),
this.transactionInfo.getUniqueQualifier(), this.opaque);
}
}
else {
if (StringUtils.isBlank(this.transactionInfo.getUniqueQualifier())) {
ByteUtils.setArguments(buffer, MetaEncodeCommand.TRANS_CMD, transactionKey,
this.transactionInfo.getSessionId(), type, this.opaque);
}
else {
ByteUtils.setArguments(buffer, MetaEncodeCommand.TRANS_CMD, transactionKey,
this.transactionInfo.getSessionId(), type, this.transactionInfo.getUniqueQualifier(), this.opaque);
}
}
buffer.flip();
return buffer;
}
public static long getSerialversionuid() {
return serialVersionUID;
}
}