org.activiti.spring.SpringTransactionContext.java Source code

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Here is the source code for org.activiti.spring.SpringTransactionContext.java

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/* 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.
 */

package org.activiti.spring;

import org.activiti.engine.impl.cfg.TransactionContext;
import org.activiti.engine.impl.cfg.TransactionListener;
import org.activiti.engine.impl.cfg.TransactionState;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.support.TransactionSynchronization;
import org.springframework.transaction.support.TransactionSynchronizationManager;

/**
 * @author Frederik Heremans
 * @author Joram Barrez
 */
public class SpringTransactionContext implements TransactionContext {

    protected PlatformTransactionManager transactionManager;
    protected CommandContext commandContext;

    public SpringTransactionContext(PlatformTransactionManager transactionManager, CommandContext commandContext) {
        this.transactionManager = transactionManager;
        this.commandContext = commandContext;
    }

    public void commit() {
        // Do nothing, transaction is managed by spring
    }

    public void rollback() {
        // Just in case the rollback isn't triggered by an
        // exception, we mark the current transaction rollBackOnly.
        transactionManager.getTransaction(null).setRollbackOnly();
    }

    public void addTransactionListener(final TransactionState transactionState,
            final TransactionListener transactionListener) {
        if (transactionState.equals(TransactionState.COMMITTING)) {

            TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronizationAdapter() {
                @Override
                public void beforeCommit(boolean readOnly) {
                    transactionListener.execute(commandContext);
                }
            });

        } else if (transactionState.equals(TransactionState.COMMITTED)) {

            TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronizationAdapter() {
                @Override
                public void afterCommit() {
                    transactionListener.execute(commandContext);
                }
            });

        } else if (transactionState.equals(TransactionState.ROLLINGBACK)) {

            TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronizationAdapter() {
                @Override
                public void beforeCompletion() {
                    transactionListener.execute(commandContext);
                }
            });

        } else if (transactionState.equals(TransactionState.ROLLED_BACK)) {

            TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronizationAdapter() {
                @Override
                public void afterCompletion(int status) {
                    if (TransactionSynchronization.STATUS_ROLLED_BACK == status) {
                        transactionListener.execute(commandContext);
                    }
                }
            });

        }

    }

    protected abstract class TransactionSynchronizationAdapter implements TransactionSynchronization {

        public void suspend() {
        }

        public void resume() {
        }

        public void flush() {
        }

        public void beforeCommit(boolean readOnly) {
        }

        public void beforeCompletion() {
        }

        public void afterCommit() {
        }

        public void afterCompletion(int status) {
        }

    }

}