org.fabric3.implementation.timer.runtime.TransactionalTimerInvoker Maven / Gradle / Ivy

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/*
 * Fabric3
 * Copyright (c) 2009-2015 Metaform Systems
 *
 * 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.
 * Portions originally based on Apache Tuscany 2007
 * licensed under the Apache 2.0 license.
 */
package org.fabric3.implementation.timer.runtime;

import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.NotSupportedException;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import javax.transaction.TransactionManager;

import org.fabric3.spi.container.component.InstanceDestructionException;
import org.fabric3.spi.container.component.InstanceLifecycleException;
import org.fabric3.spi.container.invocation.WorkContext;
import org.fabric3.spi.container.invocation.WorkContextCache;
import org.fabric3.spi.container.wire.InvocationRuntimeException;
import org.oasisopen.sca.ServiceRuntimeException;

/**
 * Invokes a timer component instance within the context of a transaction when a trigger has fired.
 */
public class TransactionalTimerInvoker implements Runnable {
    private TimerComponent component;
    private TransactionManager tm;
    private InvokerMonitor monitor;

    public TransactionalTimerInvoker(TimerComponent component, TransactionManager tm, InvokerMonitor monitor) {
        this.component = component;
        this.tm = tm;
        this.monitor = monitor;
    }

    public void run() {
        // create a new work context
        WorkContext workContext = WorkContextCache.getAndResetThreadWorkContext();
        Object instance;
        try {
            instance = component.getInstance();
        } catch (InstanceLifecycleException e) {
            monitor.initError(e);
            throw new InvocationRuntimeException(e);
        }

        ClassLoader old = Thread.currentThread().getContextClassLoader();
        try {
            tm.begin();
            Thread.currentThread().setContextClassLoader(instance.getClass().getClassLoader());
            ((Runnable) instance).run();
            tm.commit();
        } catch (HeuristicRollbackException | NotSupportedException | HeuristicMixedException | SystemException | RollbackException e) {
            monitor.executeError(e);
            // propagate to the scheduler
            throw new ServiceRuntimeException(e);
        } catch (RuntimeException e) {
            monitor.executeError(e);
            try {
                tm.rollback();
            } catch (SystemException ex) {
                monitor.executeError(e);
            }
            throw new ServiceRuntimeException(e);
        } finally {
            try {
                component.releaseInstance(instance);
            } catch (InstanceDestructionException e) {
                monitor.disposeError(e);
            }
            Thread.currentThread().setContextClassLoader(old);
            workContext.reset();
        }

    }
}