Package org.apache.activemq.store.kahadb

Source Code of org.apache.activemq.store.kahadb.TransactionIdConversion

/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.activemq.store.kahadb;

import org.apache.activemq.command.ConnectionId;
import org.apache.activemq.command.LocalTransactionId;
import org.apache.activemq.command.TransactionId;
import org.apache.activemq.command.XATransactionId;
import org.apache.activemq.protobuf.Buffer;
import org.apache.activemq.store.kahadb.data.KahaLocalTransactionId;
import org.apache.activemq.store.kahadb.data.KahaTransactionInfo;
import org.apache.activemq.store.kahadb.data.KahaXATransactionId;

public class TransactionIdConversion {

    static KahaTransactionInfo convertToLocal(TransactionId tx) {
        KahaTransactionInfo rc = new KahaTransactionInfo();
        LocalTransactionId t = (LocalTransactionId) tx;
        KahaLocalTransactionId kahaTxId = new KahaLocalTransactionId();
        kahaTxId.setConnectionId(t.getConnectionId().getValue());
        kahaTxId.setTransactionId(t.getValue());
        rc.setLocalTransactionId(kahaTxId);
        return rc;
    }

    static KahaTransactionInfo convert(TransactionId txid) {
        if (txid == null) {
            return null;
        }
        KahaTransactionInfo rc;

        if (txid.isLocalTransaction()) {
            rc = convertToLocal(txid);
        } else {
            rc = new KahaTransactionInfo();
            XATransactionId t = (XATransactionId) txid;
            KahaXATransactionId kahaTxId = new KahaXATransactionId();
            kahaTxId.setBranchQualifier(new Buffer(t.getBranchQualifier()));
            kahaTxId.setGlobalTransactionId(new Buffer(t.getGlobalTransactionId()));
            kahaTxId.setFormatId(t.getFormatId());
            rc.setXaTransactionId(kahaTxId);
        }
        return rc;
    }

    static TransactionId convert(KahaTransactionInfo transactionInfo) {
        if (transactionInfo.hasLocalTransactionId()) {
            KahaLocalTransactionId tx = transactionInfo.getLocalTransactionId();
            LocalTransactionId rc = new LocalTransactionId();
            rc.setConnectionId(new ConnectionId(tx.getConnectionId()));
            rc.setValue(tx.getTransactionId());
            return rc;
        } else {
            KahaXATransactionId tx = transactionInfo.getXaTransactionId();
            XATransactionId rc = new XATransactionId();
            rc.setBranchQualifier(tx.getBranchQualifier().toByteArray());
            rc.setGlobalTransactionId(tx.getGlobalTransactionId().toByteArray());
            rc.setFormatId(tx.getFormatId());
            return rc;
        }
    }
}
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