/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2015, Red Hat Inc, 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 Eclipse Public License 1.0 as
* published by the Free Software Foundation.
*
* 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 Eclipse
* Public License for more details.
*
* You should have received a copy of the Eclipse 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.ironjacamar.core.tx.narayana;
import org.ironjacamar.core.spi.transaction.xa.XidWrapper;
import java.util.Arrays;
import javax.transaction.xa.Xid;
/**
* A XidWrapper.
*
* @author <a href="wprice@redhat.com">Weston Price</a>
* @author <a href="jesper.pedersen@ironjacamar.org">Jesper Pedersen</a>
*/
public class XidWrapperImpl implements XidWrapper
{
/** The formatId */
private int formatId;
/** The globalTransactionId */
private byte[] globalTransactionId;
/** The branchQualifier */
private byte[] branchQualifier;
/** The jndi name */
private String jndiName;
/** Cached toString() */
private transient String cachedToString;
/** Cached hashCode() */
private transient int cachedHashCode;
/**
* Creates a new XidWrapperImpl instance.
* @param xid The Xid instances
* @param pad Should the branch qualifier be padded
* @param jndiName The JNDI name
*/
public XidWrapperImpl(Xid xid, boolean pad, String jndiName)
{
this.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();
this.jndiName = jndiName;
}
/**
* {@inheritDoc}
*/
public byte[] getBranchQualifier()
{
return branchQualifier.clone();
}
/**
* {@inheritDoc}
*/
public int getFormatId()
{
return formatId;
}
/**
* {@inheritDoc}
*/
public byte[] getGlobalTransactionId()
{
return globalTransactionId.clone();
}
/**
* {@inheritDoc}
*/
public String getJndiName()
{
return jndiName;
}
/**
* {@inheritDoc}
*/
public boolean equals(Object object)
{
if (object == this)
return true;
if (object == null || !(object instanceof Xid))
return false;
Xid other = (Xid)object;
return
(
formatId == other.getFormatId() &&
Arrays.equals(globalTransactionId, other.getGlobalTransactionId()) &&
Arrays.equals(branchQualifier, other.getBranchQualifier())
);
}
/**
* {@inheritDoc}
*/
public int hashCode()
{
if (cachedHashCode == 0)
{
cachedHashCode = formatId;
for (int i = 0; i < globalTransactionId.length; ++i)
cachedHashCode += globalTransactionId[i];
}
return cachedHashCode;
}
/**
* {@inheritDoc}
*/
public String toString()
{
if (cachedToString == null)
{
StringBuilder sb = new StringBuilder();
sb.append("XidWrapperImpl@").append(Integer.toHexString(System.identityHashCode(this)));
sb.append("[formatId=").append(getFormatId());
sb.append(" globalTransactionId=").append(Arrays.toString(getGlobalTransactionId()));
sb.append(" branchQualifier=").append(Arrays.toString(getBranchQualifier()));
sb.append(" jndiName=").append(jndiName);
sb.append("]");
cachedToString = sb.toString();
}
return cachedToString;
}
}