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/*-
* ============LICENSE_START=======================================================
* openECOMP : APP-C
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights
* reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
/**
*
*/
package org.openecomp.appc.executor.impl;
import java.util.Date;
import java.util.concurrent.TimeUnit;
import org.apache.commons.lang.ObjectUtils;
import org.openecomp.appc.exceptions.APPCException;
import org.openecomp.appc.executionqueue.ExecutionQueueService;
import org.openecomp.appc.executionqueue.impl.ExecutionQueueServiceFactory;
import org.openecomp.appc.executor.CommandExecutor;
import org.openecomp.appc.executor.impl.objects.CommandRequest;
import org.openecomp.appc.executor.impl.objects.LCMCommandRequest;
import org.openecomp.appc.executor.impl.objects.LCMReadOnlyCommandRequest;
import org.openecomp.appc.executor.objects.CommandExecutorInput;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
public class CommandExecutorImpl implements CommandExecutor {
private CommandTaskFactory executionTaskFactory ;
private static final EELFLogger logger = EELFManager.getInstance().getLogger(CommandExecutorImpl.class);
private ExecutionQueueService executionQueueService;
private ExpiredMessageHandler expiredMessageHandler;
public CommandExecutorImpl(){
}
public void setExecutionQueueService(ExecutionQueueService executionQueueService) {
this.executionQueueService = executionQueueService;
}
public void setExpiredMessageHandler(ExpiredMessageHandler expiredMessageHandler) {
this.expiredMessageHandler = expiredMessageHandler;
}
public void initialize() {
logger.info("initialization started of CommandExecutorImpl");
executionQueueService = ExecutionQueueServiceFactory.getExecutionQueueService();
executionQueueService.registerMessageExpirationListener(expiredMessageHandler);
}
public void setExecutionTaskFactory(CommandTaskFactory executionTaskFactory) {
this.executionTaskFactory = executionTaskFactory;
}
/**
* Execute given command
* Create command request and enqueue it for execution.
* @param commandExecutorInput Contains CommandHeader, command , target Id , payload and conf ID (optional)
* @throws APPCException in case of error.
*/
@Override
public void executeCommand (CommandExecutorInput commandExecutorInput) throws APPCException{
if (logger.isTraceEnabled()) {
logger.trace("Entering to executeCommand with CommandExecutorInput = "+ ObjectUtils.toString(commandExecutorInput));
}
CommandRequest request = getCommandRequest(commandExecutorInput);
enqueRequest(request);
if (logger.isTraceEnabled()) {
logger.trace("Exiting from executeCommand");
}
}
private CommandRequest getCommandRequest(CommandExecutorInput commandExecutorInput){
if (logger.isTraceEnabled()) {
logger.trace("Entering to getCommandRequest with CommandExecutorInput = "+ ObjectUtils.toString(commandExecutorInput));
}
CommandRequest commandRequest;
switch(commandExecutorInput.getRuntimeContext().getRequestContext().getAction()){
case Sync:
commandRequest = new LCMReadOnlyCommandRequest(commandExecutorInput);
break;
case Audit:
commandRequest = new LCMReadOnlyCommandRequest(commandExecutorInput);
break;
default:
commandRequest = new LCMCommandRequest(commandExecutorInput);
break;
}
if (logger.isTraceEnabled()) {
logger.trace("Exiting from getCommandRequest with (CommandRequest = "+ ObjectUtils.toString(commandRequest)+")");
}
return commandRequest;
}
@SuppressWarnings("unchecked")
private void enqueRequest(CommandRequest request) throws APPCException{
if (logger.isTraceEnabled()) {
logger.trace("Entering to enqueRequest with CommandRequest = "+ ObjectUtils.toString(request));
}
try {
CommandTask commandTask = getMessageExecutor(request.getCommandExecutorInput().getRuntimeContext().getRequestContext().getAction().name());
commandTask.setCommandRequest(request);
long remainingTTL = getRemainingTTL(request);
executionQueueService.putMessage(commandTask,remainingTTL, TimeUnit.MILLISECONDS);
} catch (Exception e) {
logger.error("Exception: "+e.getMessage());
throw new APPCException(e);
}
if (logger.isTraceEnabled()) {
logger.trace("Exiting from enqueRequest");
}
}
private long getRemainingTTL(CommandRequest request) {
Date requestTimestamp = request.getCommandExecutorInput().getRuntimeContext().getRequestContext().getCommonHeader().getTimeStamp();
int ttl = request.getCommandExecutorInput().getRuntimeContext().getRequestContext().getCommonHeader().getFlags().getTtl();
return ttl*1000 + requestTimestamp.getTime() - System.currentTimeMillis();
}
private CommandTask getMessageExecutor(String action){
if (logger.isTraceEnabled()) {
logger.trace("Entering to getMessageExecutor with command = "+ action);
}
CommandTask executionTask = executionTaskFactory.getExecutionTask(action);
if (logger.isTraceEnabled()) {
logger.trace("Exiting from getMessageExecutor");
}
return executionTask;
}
}
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