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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.adapter.iaas.provider.operation.impl;
import com.att.cdp.exceptions.ResourceNotFoundException;
import com.att.cdp.exceptions.ZoneException;
import com.att.cdp.zones.Context;
import com.att.cdp.zones.model.ModelObject;
import com.att.cdp.zones.model.Server;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.att.eelf.i18n.EELFResourceManager;
import org.glassfish.grizzly.http.util.HttpStatus;
import org.onap.appc.Constants;
import org.onap.appc.adapter.iaas.ProviderAdapter;
import org.onap.appc.adapter.iaas.impl.IdentityURL;
import org.onap.appc.adapter.iaas.impl.RequestContext;
import org.onap.appc.adapter.iaas.impl.RequestFailedException;
import org.onap.appc.adapter.iaas.impl.VMURL;
import org.onap.appc.adapter.iaas.provider.operation.common.constants.Property;
import org.onap.appc.adapter.iaas.provider.operation.common.enums.Outcome;
import org.onap.appc.adapter.iaas.provider.operation.impl.base.ProviderServerOperation;
import org.onap.appc.exceptions.UnknownProviderException;
import org.onap.appc.i18n.Msg;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.slf4j.MDC;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;
import java.util.TimeZone;
import static org.onap.appc.adapter.iaas.provider.operation.common.enums.Operation.RESTART_SERVICE;
import static org.onap.appc.adapter.utils.Constants.ADAPTER_NAME;
public class RestartServer extends ProviderServerOperation {
private static final EELFLogger logger = EELFManager.getInstance().getLogger(RestartServer.class);
private static EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
/**
* This method handles the case of restarting a server once we have found the server and have obtained the abstract
* representation of the server via the context (i.e., the "Server" object from the CDP-Zones abstraction).
*
* @param rc The request context that manages the state and recovery of the request for the life of its processing.
* @param server The server object representing the server we want to operate on
* @throws ZoneException when error occurs.
* @throws RequestFailedException when server status is error.
*/
@SuppressWarnings("nls")
private void restartServer(RequestContext rc, Server server, SvcLogicContext ctx)
throws ZoneException, RequestFailedException {
/*
* Pending is a bit of a special case. If we find the server is in a pending state, then the provider is in the
* process of changing state of the server. So, lets try to wait a little bit and see if the state settles down
* to one we can deal with. If not, then we have to fail the request.
*/
String msg;
if (server.getStatus().equals(Server.Status.PENDING)) {
waitForStateChange(rc, server, Server.Status.READY, Server.Status.RUNNING, Server.Status.ERROR,
Server.Status.SUSPENDED, Server.Status.PAUSED);
}
setTimeForMetricsLogger("restart server");
String skipHypervisorCheck = configuration.getProperty(Property.SKIP_HYPERVISOR_CHECK);
if (skipHypervisorCheck == null && ctx != null) {
skipHypervisorCheck = ctx.getAttribute(ProviderAdapter.SKIP_HYPERVISOR_CHECK);
}
// Always perform Virtual Machine/Hypervisor Status/Network checks
// unless the skip is set to true
if (skipHypervisorCheck == null || (!skipHypervisorCheck.equalsIgnoreCase("true"))) {
// Check of the Hypervisor for the VM Server is UP and reachable
checkHypervisor(server);
}
/*
* We determine what to do based on the current state of the server
*/
switch (server.getStatus()) {
case DELETED:
// Nothing to do, the server is gone
msg = EELFResourceManager.format(Msg.SERVER_DELETED, server.getName(), server.getId(),
server.getTenantId(), "restarted");
generateEvent(rc, false, msg);
logger.error(msg);
metricsLogger.error(msg);
break;
case RUNNING:
// Attempt to stop and start the server
stopServer(rc, server);
startServer(rc, server);
generateEvent(rc, true, Outcome.SUCCESS.toString());
metricsLogger.info("Server status: RUNNING");
break;
case ERROR:
msg = EELFResourceManager.format(Msg.SERVER_ERROR_STATE, server.getName(), server.getId(),
server.getTenantId(), "restart");
generateEvent(rc, false, msg);
logger.error(msg);
metricsLogger.error(msg);
throw new RequestFailedException("Restart Server", msg, HttpStatus.METHOD_NOT_ALLOWED_405, server);
case READY:
// Attempt to start the server
startServer(rc, server);
generateEvent(rc, true, Outcome.SUCCESS.toString());
metricsLogger.info("Server status: READY");
break;
case PAUSED:
// if paused, un-pause it
unpauseServer(rc, server);
generateEvent(rc, true, Outcome.SUCCESS.toString());
metricsLogger.info("Server status: PAUSED");
break;
case SUSPENDED:
// Attempt to resume the suspended server
resumeServer(rc, server);
generateEvent(rc, true, Outcome.SUCCESS.toString());
metricsLogger.info("Server status: SUSPENDED");
break;
default:
// Hmmm, unknown status, should never occur
msg = EELFResourceManager.format(Msg.UNKNOWN_SERVER_STATE, server.getName(), server.getId(),
server.getTenantId(), server.getStatus().name());
generateEvent(rc, false, msg);
logger.error(msg);
metricsLogger.error(msg);
break;
}
}
/**
* This method is used to restart an existing virtual machine given the fully qualified URL of the machine.
* <p>
* The fully qualified URL contains enough information to locate the appropriate server. The URL is of the form
*
* <pre>
* [scheme]://[host[:port]] / [path] / [tenant_id] / servers / [vm_id]
* </pre>
*
* Where the various parts of the URL can be parsed and extracted and used to locate the appropriate service in the
* provider service catalog. This then allows us to open a context using the CDP abstraction, obtain the server by
* its UUID, and then perform the restart.
* </p>
*
* @throws UnknownProviderException If the provider cannot be found
* @throws IllegalArgumentException if the expected argument(s) are not defined or are invalid
* @see org.onap.appc.adapter.iaas.ProviderAdapter#restartServer(java.util.Map,
* org.onap.ccsdk.sli.core.sli.SvcLogicContext)
*/
@SuppressWarnings("nls")
private Server restartServer(Map<String, String> params, SvcLogicContext ctx)
throws UnknownProviderException, IllegalArgumentException {
Server server = null;
RequestContext rc = new RequestContext(ctx);
rc.isAlive();
String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
/*
* Set Time for Metrics Logger
*/
setTimeForMetricsLogger("GET server status");
ctx.setAttribute("RESTART_STATUS", "ERROR");
try {
validateParametersExist(params, ProviderAdapter.PROPERTY_INSTANCE_URL,
ProviderAdapter.PROPERTY_PROVIDER_NAME);
String vm_url = params.get(ProviderAdapter.PROPERTY_INSTANCE_URL);
VMURL vm = VMURL.parseURL(vm_url);
if (validateVM(rc, appName, vm_url, vm))
return null;
IdentityURL ident = IdentityURL.parseURL(params.get(ProviderAdapter.PROPERTY_IDENTITY_URL));
String identStr = (ident == null) ? null : ident.toString();
Context context = null;
String tenantName = "Unknown";//to be used also in case of exception
try {
context = getContext(rc, vm_url, identStr);
if (context != null) {
tenantName = context.getTenantName();//this varaible also is used in case of exception
rc.reset();
server = lookupServer(rc, context, vm.getServerId());
logger.debug(Msg.SERVER_FOUND, vm_url, tenantName, server.getStatus().toString());
rc.reset();
restartServer(rc, server, ctx);
context.close();
doSuccess(rc);
ctx.setAttribute("RESTART_STATUS", "SUCCESS");
String msg = EELFResourceManager.format(Msg.SUCCESS_EVENT_MESSAGE, "RestartServer", vm_url);
ctx.setAttribute(org.onap.appc.Constants.ATTRIBUTE_SUCCESS_MESSAGE, msg);
}
} catch (RequestFailedException e) {
doFailure(rc, e.getStatus(), e.getMessage());
} catch (ResourceNotFoundException e) {
String msg = EELFResourceManager.format(Msg.SERVER_NOT_FOUND, e, vm_url);
logger.error(msg);
metricsLogger.error(msg);
doFailure(rc, HttpStatus.NOT_FOUND_404, msg);
} catch (Exception e1) {
String msg = EELFResourceManager.format(Msg.SERVER_OPERATION_EXCEPTION, e1,
e1.getClass().getSimpleName(), RESTART_SERVICE.toString(), vm_url,
tenantName);
logger.error(msg, e1);
metricsLogger.error(msg, e1);
doFailure(rc, HttpStatus.INTERNAL_SERVER_ERROR_500, msg);
}
} catch (RequestFailedException e) {
doFailure(rc, e.getStatus(), e.getMessage());
}
return server;
}
@Override
protected ModelObject executeProviderOperation(Map<String, String> params, SvcLogicContext context)
throws UnknownProviderException {
setMDC(RESTART_SERVICE.toString(), "App-C IaaS Adapter:Restart", ADAPTER_NAME);
logOperation(Msg.RESTARTING_SERVER, params, context);
setTimeForMetricsLogger("execute restart");
metricsLogger.info("Executing Provider Operation: Restart");
return restartServer(params, context);
}
private void setTimeForMetricsLogger(String targetServiceName) {
long startTime = System.currentTimeMillis();
TimeZone tz = TimeZone.getTimeZone("UTC");
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ");
df.setTimeZone(tz);
long endTime = System.currentTimeMillis();
long duration = endTime - startTime;
String durationStr = String.valueOf(duration);
String endTimeStrUTC = df.format(new Date());
MDC.put("EndTimestamp", endTimeStrUTC);
MDC.put("ElapsedTime", durationStr);
MDC.put("TargetEntity", "cdp");
MDC.put("TargetServiceName", targetServiceName);
MDC.put("ClassName", "org.onap.appc.adapter.iaas.provider.operation.impl.RestartServer");
}
}
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