Java tutorial
package apiserver.services.pdf.service; /******************************************************************************* Copyright (c) 2013 Mike Nimer. This file is part of ApiServer Project. The ApiServer Project is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The ApiServer Project is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the ApiServer Project. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ import apiserver.exceptions.ColdFusionException; import apiserver.services.pdf.gateways.jobs.DDXPdfResult; import apiserver.services.pdf.grid.GridService; import apiserver.workers.coldfusion.model.ByteArrayResult; import apiserver.workers.coldfusion.services.pdf.ProcessDDXCallable; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.gridgain.grid.Grid; import org.springframework.beans.factory.annotation.Value; import org.springframework.messaging.Message; import java.io.Serializable; import java.util.concurrent.ExecutorService; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; /** * User: mnimer * Date: 9/18/12 */ public class ProcessPdfDDXCFService extends GridService implements Serializable { private final Log log = LogFactory.getLog(this.getClass()); private @Value("${defaultReplyTimeout}") Integer defaultTimeout; public Object execute(Message<?> message) throws ColdFusionException { DDXPdfResult props = (DDXPdfResult) message.getPayload(); try { long startTime = System.nanoTime(); Grid grid = verifyGridConnection(); // Get grid-enabled executor service for nodes where attribute 'worker' is defined. ExecutorService exec = getColdFusionExecutor(); Future<ByteArrayResult> future = exec .submit(new ProcessDDXCallable(props.getFile().getFileBytes(), props.getDdx())); ByteArrayResult _result = future.get(defaultTimeout, TimeUnit.SECONDS); props.setResult(_result.getBytes()); long endTime = System.nanoTime(); log.debug("execution times: CF=" + _result.getStats().getExecutionTime() + "ms -- total=" + (endTime - startTime) + "ms"); return props; } catch (Exception ge) { throw new RuntimeException(ge); } } }