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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
/**
*
*/
package org.onap.appc.executor.impl;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import org.apache.commons.lang.ObjectUtils;
import org.onap.appc.domainmodel.lcm.RuntimeContext;
import org.onap.appc.exceptions.APPCException;
import org.onap.appc.executionqueue.ExecutionQueueService;
import org.onap.appc.executor.CommandExecutor;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.concurrent.TimeUnit;
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() {
}
/**
* Injected by blueprint
*
* @param executionQueueService
*/
public void setExecutionQueueService(ExecutionQueueService executionQueueService) {
this.executionQueueService = executionQueueService;
}
/**
* Injected by blueprint
* @param expiredMessageHandler
*/
public void setExpiredMessageHandler(ExpiredMessageHandler expiredMessageHandler) {
this.expiredMessageHandler = expiredMessageHandler;
}
public void initialize() {
logger.info("initialization started of CommandExecutorImpl");
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(RuntimeContext commandExecutorInput) throws APPCException {
if (logger.isTraceEnabled()) {
logger.trace("Entering to executeCommand with CommandExecutorInput = " + ObjectUtils.toString(commandExecutorInput));
}
enqueRequest(commandExecutorInput);
if (logger.isTraceEnabled()) {
logger.trace("Exiting from executeCommand");
}
}
private RuntimeContext getCommandRequest(RuntimeContext commandExecutorInput) {
if (logger.isTraceEnabled()) {
logger.trace("Entering to getCommandRequest with CommandExecutorInput = " + ObjectUtils.toString(commandExecutorInput));
}
RuntimeContext commandRequest;
commandRequest = commandExecutorInput;
if (logger.isTraceEnabled()) {
logger.trace("Exiting from getCommandRequest with (CommandRequest = " + ObjectUtils.toString(commandRequest) + ")");
}
return commandRequest;
}
@SuppressWarnings("unchecked")
private void enqueRequest(RuntimeContext request) throws APPCException {
if (logger.isTraceEnabled()) {
logger.trace("Entering to enqueRequest with CommandRequest = " + ObjectUtils.toString(request));
}
try {
CommandTask commandTask = executionTaskFactory.getExecutionTask(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(RuntimeContext request) {
Instant requestTimestamp = request.getRequestContext().getCommonHeader().getTimeStamp();
int ttl = request.getRequestContext().getCommonHeader().getFlags().getTtl();
return ChronoUnit.MILLIS.between(Instant.now(), requestTimestamp.plusSeconds(ttl));
}
private CommandTask getMessageExecutor(RuntimeContext request) {
if (logger.isTraceEnabled()) {
logger.trace("Entering to getMessageExecutor with command = " + request);
}
CommandTask executionTask = executionTaskFactory.getExecutionTask(request);
if (logger.isTraceEnabled()) {
logger.trace("Exiting from getMessageExecutor");
}
return executionTask;
}
}
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