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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* 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.mso.asdc.client;
import java.io.IOException;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.openecomp.mso.asdc.client.exceptions.ASDCControllerException;
import org.openecomp.mso.asdc.client.exceptions.ASDCParametersException;
import org.openecomp.mso.logger.MessageEnum;
import org.openecomp.mso.logger.MsoLogger;
import org.openecomp.mso.properties.MsoJsonProperties;
import org.openecomp.mso.properties.MsoPropertiesException;
import org.openecomp.mso.properties.MsoPropertiesFactory;
public class ASDCGlobalController {
private static final MsoLogger LOGGER = MsoLogger.getMsoLogger (MsoLogger.Catalog.ASDC);
private Map <String,ASDCController> controllers = new HashMap<>();
private MsoJsonProperties msoProp= null;
private void loadControllers () throws ASDCParametersException {
List<String> controllerNames = ASDCConfiguration.getAllDefinedControllers();
StringBuilder controllerListLog = new StringBuilder("List of controllers loaded:");
for (String controllerName : controllerNames) {
controllers.put(controllerName, new ASDCController(controllerName));
controllerListLog.append(controllerName);
controllerListLog.append(";");
}
LOGGER.debug(controllerListLog.toString());
}
private boolean sameControllersDefined() throws ASDCParametersException {
List<String> controllerNames = ASDCConfiguration.getAllDefinedControllers();
if (controllerNames.size() == controllers.size()) {
boolean areIdentical = true;
for (String name:controllerNames) {
if (!controllers.containsKey(name)) {
areIdentical = false;
break;
}
}
return areIdentical;
} else {
return false;
}
}
/**
* Check that controllers list needs to be updated or not.
* return true if the list has been updated
*/
private boolean updateControllersListIfNeeded () {
boolean updateNeeded=false;
try {
MsoPropertiesFactory msoPropFactory = new MsoPropertiesFactory();
MsoJsonProperties newMsoProp;
newMsoProp = msoPropFactory.getMsoJsonProperties(ASDCConfiguration.MSO_PROP_ASDC);
if (msoPropFactory.propertiesHaveChanged(ASDCConfiguration.MSO_PROP_ASDC, msoProp) && !sameControllersDefined()) {
updateNeeded = true;
LOGGER.debug("List of ASDC controllers has been changed, trying to kill them");
this.closeASDC();
// Wait that all controllers are down before restarting, next pass will kill them all
if (this.controllers.size() == 0) {
msoProp = newMsoProp;
this.loadControllers();
}
}
} catch (ASDCParametersException e) {
LOGGER.warn (MessageEnum.ASDC_LOAD_ASDC_CLIENT_EXC,
"All ASDC Hosts",
"All ASDC Envs", "ASDC", "", MsoLogger.ErrorCode.BusinessProcesssError, "ASDCParametersException in updateControllersListIfNeeded",
e);
} catch (MsoPropertiesException e) {
LOGGER.warn (MessageEnum.ASDC_LOAD_ASDC_CLIENT_EXC,
"All ASDC Hosts",
"All ASDC Envs", "ASDC", "", MsoLogger.ErrorCode.BusinessProcesssError, "MsoPropertiesException in updateControllersListIfNeeded",
e);
}
return updateNeeded;
}
/**
* Checks for each controller if it is STOPPED and restart if it is the case.
*/
public void checkInStoppedState () {
for (ASDCController controller : controllers.values()) {
if (ASDCControllerStatus.STOPPED.equals (controller.getControllerStatus ())) {
// Try to restart just in case of issues
try {
controller.initASDC ();
} catch (ASDCControllerException ec) {
LOGGER.warn (MessageEnum.ASDC_INIT_ASDC_CLIENT_EXC,
controller.getAddress (),
controller.getEnvironment (), "ASDC", "", MsoLogger.ErrorCode.BusinessProcesssError, "ASDCControllerException in checkInStoppedState",
ec);
} catch (ASDCParametersException ep) {
LOGGER.warn (MessageEnum.ASDC_LOAD_ASDC_CLIENT_EXC,
controller.getAddress (),
controller.getEnvironment (), "ASDC", "", MsoLogger.ErrorCode.BusinessProcesssError, "ASDCParametersException in checkInStoppedState",
ep);
} catch (RuntimeException | IOException e) {
LOGGER.error (MessageEnum.ASDC_SINGLETON_CHECKT_EXC,
controller.getAddress (),
controller.getEnvironment (), "ASDC", "", MsoLogger.ErrorCode.BusinessProcesssError, "RuntimeException in checkInStoppedState",
e);
}
}
}
}
public void closeASDC () {
List<String> controllerToRemove = new LinkedList<>();
for (ASDCController controller : controllers.values()) {
try {
controller.closeASDC ();
controllerToRemove.add(controller.controllerName);
} catch (RuntimeException e) {
LOGGER.warn (MessageEnum.ASDC_SHUTDOWN_ASDC_CLIENT_EXC,
"RuntimeException",
controller.getAddress (),
controller.getEnvironment (), "ASDC", "closeASDC", MsoLogger.ErrorCode.BusinessProcesssError, "RuntimeException in closeASDC",
e);
} catch (ASDCControllerException e) {
LOGGER.warn (MessageEnum.ASDC_SHUTDOWN_ASDC_CLIENT_EXC,
"ASDCControllerException",
controller.getAddress (),
controller.getEnvironment (), "ASDC", "closeASDC", MsoLogger.ErrorCode.BusinessProcesssError, "ASDCControllerException in closeASDC",
e);
}
}
// Now remove the ones properly closed
for (String toRemove:controllerToRemove) {
controllers.remove(toRemove);
}
}
/**
* Check whether the config has been changed
*/
public boolean updateControllersConfigIfNeeded () {
boolean listUpdated=updateControllersListIfNeeded();
if (!listUpdated) {
for (ASDCController controller : controllers.values()) {
try {
controller.updateConfigIfNeeded ();
} catch (ASDCControllerException ec) {
LOGGER.warn (MessageEnum.ASDC_INIT_ASDC_CLIENT_EXC,
controller.getAddress (),
controller.getEnvironment (), "ASDC", "closeASDC", MsoLogger.ErrorCode.BusinessProcesssError, "ASDCControllerException in updateControllersConfigIfNeeded",
ec);
} catch (ASDCParametersException ep) {
LOGGER.warn (MessageEnum.ASDC_LOAD_ASDC_CLIENT_EXC,
controller.getAddress (),
controller.getEnvironment (), "ASDC", "closeASDC", MsoLogger.ErrorCode.BusinessProcesssError, "ASDCParametersException in updateControllersConfigIfNeeded",
ep);
} catch (RuntimeException | IOException e) {
LOGGER.error (MessageEnum.ASDC_SINGLETON_CHECKT_EXC,
controller.getAddress (),
controller.getEnvironment (), "ASDC", "closeASDC", MsoLogger.ErrorCode.BusinessProcesssError, "RuntimeException in updateControllersConfigIfNeeded",
e);
}
}
}
return listUpdated;
}
public Map<String, ASDCController> getControllers() {
return controllers;
}
}
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