/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.resource.connectionmanager.xa;
import java.io.Serializable;
import java.util.Arrays;
import javax.transaction.xa.Xid;
/**
* A XidWrapper.
*
* @author <a href="weston.price@jboss.com">Weston Price</a>
* @version $Revision: 82920 $
*/
public class XidWrapperImpl implements XidWrapper
{
/** The serialVersionUID */
private static final long serialVersionUID = 8226195409384804425L;
/** The formatId */
private int formatId;
/** The globalTransactionId */
private byte[] globalTransactionId;
/** The branchQualifier */
private byte[] branchQualifier;
/** Cached toString() */
private transient String cachedToString;
/** Cached hashCode() */
private transient int cachedHashCode;
/** Whether or not to pad the id */
private boolean pad;
public XidWrapperImpl(Xid xid)
{
this(false, xid);
}
public XidWrapperImpl(boolean pad, Xid xid)
{
this.pad = pad;
branchQualifier = (pad) ? new byte[Xid.MAXBQUALSIZE] : new byte[xid.getBranchQualifier().length];
System.arraycopy(xid.getBranchQualifier(), 0, branchQualifier, 0, xid.getBranchQualifier().length);
this.globalTransactionId = xid.getGlobalTransactionId();
this.formatId = xid.getFormatId();
}
public byte[] getBranchQualifier()
{
return this.branchQualifier;
}
public int getFormatId()
{
return this.formatId;
}
public byte[] getGlobalTransactionId()
{
return this.globalTransactionId;
}
public boolean equals(Object object)
{
if (object == null || (object instanceof Xid) == false)
return false;
Xid other = (Xid) object;
return
(
formatId == other.getFormatId() &&
Arrays.equals(globalTransactionId, other.getGlobalTransactionId()) &&
Arrays.equals(branchQualifier, other.getBranchQualifier())
);
}
public int hashCode()
{
if (cachedHashCode == 0)
{
cachedHashCode = formatId;
for (int i = 0; i < globalTransactionId.length; ++i)
cachedHashCode += globalTransactionId[i];
}
return cachedHashCode;
}
public String toString()
{
if (cachedToString == null)
{
StringBuffer buffer = new StringBuffer();
buffer.append("XidWrapper[FormatId=").append(getFormatId());
buffer.append(" GlobalId=").append(new String(getGlobalTransactionId()).trim());
byte[] branchQualifer = getBranchQualifier();
buffer.append(" BranchQual=");
if (branchQualifer == null)
buffer.append("null");
else
buffer.append(new String(getBranchQualifier()).trim());
buffer.append(']');
cachedToString = buffer.toString();
}
return cachedToString;
}
}