org.smartdeveloperhub.harvesters.it.frontend.publisher.PublisherTask.java Source code

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Here is the source code for org.smartdeveloperhub.harvesters.it.frontend.publisher.PublisherTask.java

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/**
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   This file is part of the Smart Developer Hub Project:
 *     http://www.smartdeveloperhub.org/
 *
 *   Center for Open Middleware
 *     http://www.centeropenmiddleware.com/
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Copyright (C) 2015-2016 Center for Open Middleware.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   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.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Artifact    : org.smartdeveloperhub.harvesters.it.frontend:it-frontend-core:0.1.0
 *   Bundle      : it-frontend-core-0.1.0.jar
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 */
package org.smartdeveloperhub.harvesters.it.frontend.publisher;

import java.util.concurrent.Callable;
import java.util.concurrent.TimeUnit;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.smartdeveloperhub.harvesters.it.frontend.BackendController;

import com.google.common.base.Stopwatch;

abstract class PublisherTask implements Callable<Boolean> {

    private static final Logger LOGGER = LoggerFactory.getLogger(PublisherTask.class);

    private final BackendController controller;
    private final String taskName;

    PublisherTask(final String taskName, final BackendController controller) {
        this.taskName = taskName;
        this.controller = controller;
    }

    @Override
    public final Boolean call() {
        LOGGER.info("Starting {} task...", this.taskName);
        final Stopwatch watch = Stopwatch.createStarted();
        try {
            doPublish();
            LOGGER.info("{} completed.", this.taskName);
            return true;
        } catch (final Exception e) {
            LOGGER.warn("{} failed. Full stacktrace follows.", this.taskName, e);
            return false;
        } finally {
            watch.stop();
            LOGGER.info("{} task finished. Elapsed time (ms): {}", this.taskName,
                    watch.elapsed(TimeUnit.MILLISECONDS));
        }
    }

    protected abstract void doPublish() throws Exception; // NOSONAR

    protected final BackendController getController() {
        return this.controller;
    }

}