Moving to root below branch label

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/search/transaction/SimpleTransaction.java

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+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * 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.alfresco.repo.search.transaction;
+
+import java.io.UnsupportedEncodingException;
+
+import javax.transaction.HeuristicMixedException;
+import javax.transaction.HeuristicRollbackException;
+import javax.transaction.NotSupportedException;
+import javax.transaction.RollbackException;
+import javax.transaction.Synchronization;
+import javax.transaction.SystemException;
+import javax.transaction.xa.XAResource;
+
+import org.alfresco.util.GUID;
+
+public class SimpleTransaction implements XidTransaction
+{
+    private static final int DEFAULT_TIMEOUT = 600;
+
+    private boolean isRollBackOnly;
+
+    private int timeout;
+
+    public static final int FORMAT_ID = 12321;
+
+    private static final String CHAR_SET = "UTF-8";
+
+    private byte[] globalTransactionId;
+
+    private byte[] branchQualifier;
+
+    // This is the transactoin id
+    private String guid;
+
+    private static ThreadLocal<SimpleTransaction> transaction = new ThreadLocal<SimpleTransaction>();
+
+    private SimpleTransaction(int timeout)
+    {
+        super();
+        this.timeout = timeout;
+        guid = GUID.generate();
+        try
+        {
+            globalTransactionId = guid.getBytes(CHAR_SET);
+        }
+        catch (UnsupportedEncodingException e)
+        {
+            throw new XidException(e);
+        }
+        branchQualifier = new byte[0];
+    }
+
+    private SimpleTransaction()
+    {
+        this(DEFAULT_TIMEOUT);
+    }
+
+    public static SimpleTransaction getTransaction()
+    {
+        return (SimpleTransaction) transaction.get();
+    }
+
+    public void commit() throws RollbackException, HeuristicMixedException, HeuristicRollbackException,
+            SecurityException, SystemException
+    {
+        try
+        {
+            if (isRollBackOnly)
+            {
+                throw new RollbackException("Commit failed: Transaction marked for rollback");
+            }
+
+        }
+        finally
+        {
+            transaction.set(null);
+        }
+    }
+
+    public boolean delistResource(XAResource arg0, int arg1) throws IllegalStateException, SystemException
+    {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException();
+    }
+
+    public boolean enlistResource(XAResource arg0) throws RollbackException, IllegalStateException, SystemException
+    {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException();
+    }
+
+    public int getStatus() throws SystemException
+    {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException();
+    }
+
+    public void registerSynchronization(Synchronization arg0) throws RollbackException, IllegalStateException,
+            SystemException
+    {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException();
+    }
+
+    public void rollback() throws IllegalStateException, SystemException
+    {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException();
+    }
+
+    public void setRollbackOnly() throws IllegalStateException, SystemException
+    {
+        isRollBackOnly = true;
+    }
+
+    /*
+     * Support for suspend, resume and begin.
+     */
+
+    /* package */static SimpleTransaction suspend()
+    {
+        SimpleTransaction tx = getTransaction();
+        transaction.set(null);
+        return tx;
+    }
+
+    /* package */static void begin() throws NotSupportedException
+    {
+        if (getTransaction() != null)
+        {
+            throw new NotSupportedException("Nested transactions are not supported");
+        }
+        transaction.set(new SimpleTransaction());
+    }
+
+    /* package */static void resume(SimpleTransaction tx)
+    {
+        if (getTransaction() != null)
+        {
+            throw new IllegalStateException("A transaction is already associated with the thread");
+        }
+        transaction.set((SimpleTransaction) tx);
+    }
+
+    public String getGUID()
+    {
+        return guid;
+    }
+
+    public boolean equals(Object o)
+    {
+        if (this == o)
+        {
+            return true;
+        }
+        if (!(o instanceof SimpleTransaction))
+        {
+            return false;
+        }
+        SimpleTransaction other = (SimpleTransaction) o;
+        return this.getGUID().equals(other.getGUID());
+    }
+
+    public int hashCode()
+    {
+        return getGUID().hashCode();
+    }
+
+    public String toString()
+    {
+        StringBuffer buffer = new StringBuffer(128);
+        buffer.append("Simple Transaction GUID = " + getGUID());
+        return buffer.toString();
+    }
+
+    public int getFormatId()
+    {
+        return FORMAT_ID;
+    }
+
+    public byte[] getGlobalTransactionId()
+    {
+        return globalTransactionId;
+    }
+
+    public byte[] getBranchQualifier()
+    {
+        return branchQualifier;
+    }
+}