org.springframework.integration.transaction.DefaultTransactionSynchronizationFactory.java Source code

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Here is the source code for org.springframework.integration.transaction.DefaultTransactionSynchronizationFactory.java

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/*
 * Copyright 2002-2019 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.integration.transaction;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.springframework.transaction.support.TransactionSynchronization;
import org.springframework.util.Assert;

/**
 * Default implementation of {@link TransactionSynchronizationFactory} which takes an instance of
 * {@link TransactionSynchronizationProcessor} allowing you to create a {@link TransactionSynchronization}
 * using {{@link #create(Object)} method.
 *
 * @author Gary Russell
 * @author Oleg Zhurakousky
 * @author Artem Bilan
 *
 * @since 2.2
 */
public class DefaultTransactionSynchronizationFactory implements TransactionSynchronizationFactory {

    private final Log logger = LogFactory.getLog(getClass());

    private final TransactionSynchronizationProcessor processor;

    public DefaultTransactionSynchronizationFactory(TransactionSynchronizationProcessor processor) {
        Assert.notNull(processor, "'processor' must not be null");
        this.processor = processor;
    }

    @Override
    public TransactionSynchronization create(Object key) {
        Assert.notNull(key, "'key' must not be null");
        return new DefaultTransactionalResourceSynchronization(key);
    }

    private final class DefaultTransactionalResourceSynchronization
            extends IntegrationResourceHolderSynchronization {

        DefaultTransactionalResourceSynchronization(Object resourceKey) {
            super(new IntegrationResourceHolder(), resourceKey);
        }

        @Override
        public void beforeCommit(boolean readOnly) {
            if (DefaultTransactionSynchronizationFactory.this.logger.isTraceEnabled()) {
                DefaultTransactionSynchronizationFactory.this.logger
                        .trace("'pre-Committing' transactional resource");
            }
            DefaultTransactionSynchronizationFactory.this.processor.processBeforeCommit(resourceHolder);
        }

        @Override
        protected boolean shouldReleaseBeforeCompletion() {
            return false;
        }

        @Override
        protected void processResourceAfterCommit(IntegrationResourceHolder resourceHolder) {

            if (DefaultTransactionSynchronizationFactory.this.logger.isTraceEnabled()) {
                DefaultTransactionSynchronizationFactory.this.logger.trace("'Committing' transactional resource");
            }

            DefaultTransactionSynchronizationFactory.this.processor.processAfterCommit(resourceHolder);

        }

        @Override
        public void afterCompletion(int status) {
            if (status != TransactionSynchronization.STATUS_COMMITTED) {
                if (DefaultTransactionSynchronizationFactory.this.logger.isTraceEnabled()) {
                    DefaultTransactionSynchronizationFactory.this.logger
                            .trace("'Rolling back' transactional resource");
                }

                DefaultTransactionSynchronizationFactory.this.processor.processAfterRollback(resourceHolder);

            }
            super.afterCompletion(status);
        }

    }

}