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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property.
* Copyright © 2017 Amdocs
* 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=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.openecomp.modelloader.service;
import org.openecomp.sdc.api.IDistributionClient;
import org.openecomp.sdc.api.results.IDistributionClientResult;
import org.openecomp.sdc.impl.DistributionClientFactory;
import org.openecomp.sdc.utils.DistributionActionResultEnum;
import org.openecomp.cl.api.Logger;
import org.openecomp.cl.eelf.LoggerFactory;
import org.openecomp.modelloader.config.ModelLoaderConfig;
import org.openecomp.modelloader.entity.model.ModelArtifactHandler;
import org.openecomp.modelloader.notification.EventCallback;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Date;
import java.util.Properties;
import java.util.Timer;
import java.util.TimerTask;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.Response;
/**
* Service class in charge of managing the negotiating model loading
* capabilities between AAI and an ASDC.
*/
public class ModelLoaderService implements ModelLoaderInterface {
protected static final String FILESEP = (System.getProperty("file.separator") == null) ? "/"
: System.getProperty("file.separator");
protected static final String CONFIG_DIR = System.getProperty("CONFIG_HOME") + FILESEP;
protected static final String CONFIG_AUTH_LOCATION = CONFIG_DIR + "auth" + FILESEP;
protected static final String CONFIG_FILE = CONFIG_DIR + "model-loader.properties";
private IDistributionClient client;
private ModelLoaderConfig config;
private Timer timer = null;
static Logger logger = LoggerFactory.getInstance().getLogger(ModelLoaderService.class.getName());
/**
* Responsible for loading configuration files and calling initialization.
*/
public ModelLoaderService() {
start();
}
protected void start() {
// Load model loader system configuration
logger.info(ModelLoaderMsgs.LOADING_CONFIGURATION);
Properties configProperties = new Properties();
try {
configProperties.load(new FileInputStream(CONFIG_FILE));
} catch (IOException e) {
String errorMsg = "Failed to load configuration: " + e.getMessage();
logger.error(ModelLoaderMsgs.ASDC_CONNECTION_ERROR, errorMsg);
shutdown();
}
config = new ModelLoaderConfig(configProperties, CONFIG_AUTH_LOCATION);
init();
Runtime.getRuntime().addShutdownHook(new Thread(new Runnable(){
public void run() {
preShutdownOperations();
}
}));
}
/**
* Responsible for stopping the connection to the distribution client before
* the resource is destroyed.
*/
protected void preShutdownOperations() {
logger.info(ModelLoaderMsgs.STOPPING_CLIENT);
if (client != null) {
client.stop();
}
}
/**
* Responsible for loading configuration files, initializing model
* distribution clients, and starting them.
*/
protected void init() {
// Initialize distribution client
logger.debug(ModelLoaderMsgs.INITIALIZING, "Initializing distribution client...");
client = DistributionClientFactory.createDistributionClient();
EventCallback callback = new EventCallback(client, config);
IDistributionClientResult initResult = client.init(config, callback);
if (initResult.getDistributionActionResult() != DistributionActionResultEnum.SUCCESS) {
String errorMsg = "Failed to initialize distribution client: "
+ initResult.getDistributionMessageResult();
logger.error(ModelLoaderMsgs.ASDC_CONNECTION_ERROR, errorMsg);
// Kick off a timer to retry the SDC connection
timer = new Timer();
TimerTask task = new SdcConnectionJob(client, config, callback, timer);
timer.schedule(task, new Date(), 60000);
}
else {
// Start distribution client
logger.debug(ModelLoaderMsgs.INITIALIZING, "Starting distribution client...");
IDistributionClientResult startResult = client.start();
if (startResult.getDistributionActionResult() != DistributionActionResultEnum.SUCCESS) {
String errorMsg = "Failed to start distribution client: "
+ startResult.getDistributionMessageResult();
logger.error(ModelLoaderMsgs.ASDC_CONNECTION_ERROR, errorMsg);
// Kick off a timer to retry the SDC connection
timer = new Timer();
TimerTask task = new SdcConnectionJob(client, config, callback, timer);
timer.schedule(task, new Date(), 60000);
}
else {
logger.info(ModelLoaderMsgs.INITIALIZING, "Connection to SDC established");
}
}
}
/**
* Shut down the process.
*/
private void shutdown() {
preShutdownOperations();
// TODO: Find a better way to shut down the model loader.
try {
// Give logs time to write to file
Thread.sleep(2000);
} catch (InterruptedException e) {
// Nothing we can do at this point
}
Runtime.getRuntime().halt(1);
}
/** (non-Javadoc)
* @see org.openecomp.modelloader.service.ModelLoaderInterface#loadModel(java.lang.String)
*/
@Override
public Response loadModel(String modelid) {
Response response = Response.ok("{\"model_loaded\":\"" + modelid + "\"}").build();
return response;
}
/** (non-Javadoc)
* @see org.openecomp.modelloader.service.ModelLoaderInterface#saveModel(java.lang.String, java.lang.String)
*/
@Override
public Response saveModel(String modelid, String modelname) {
Response response = Response.ok("{\"model_saved\":\"" + modelid + "-" + modelname + "\"}")
.build();
return response;
}
@Override
public Response ingestModel(String modelid, HttpServletRequest req, String payload)
throws IOException {
Response response;
if (config.getIngestSimulatorEnabled()) {
logger.info(ModelLoaderMsgs.DISTRIBUTION_EVENT, "Received test artifact");
ModelArtifactHandler handler = new ModelArtifactHandler(config);
handler.loadModelTest(payload.getBytes());
response = Response.ok().build();
} else {
logger.debug("Simulation interface disabled");
response = Response.serverError().build();
}
return response;
}
}
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