appc-adapters/appc-iaas-adapter/appc-iaas-adapter-bundle/src/main/java/org/onap/appc/adapter/iaas/provider/operation/impl/StopServer.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP : APPC
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Copyright (C) 2017 Amdocs
   8  * =============================================================================
   9  * Licensed under the Apache License, Version 2.0 (the "License");
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  *      http://www.apache.org/licenses/LICENSE-2.0
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an "AS IS" BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  *
  21  * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  22  * ============LICENSE_END=========================================================
  23  */
  24
  25 package org.onap.appc.adapter.iaas.provider.operation.impl;
  26
  27 import org.onap.appc.Constants;
  28 import org.onap.appc.adapter.iaas.ProviderAdapter;
  29 import org.onap.appc.adapter.iaas.impl.IdentityURL;
  30 import org.onap.appc.adapter.iaas.impl.RequestContext;
  31 import org.onap.appc.adapter.iaas.impl.RequestFailedException;
  32 import org.onap.appc.adapter.iaas.impl.VMURL;
  33 import org.onap.appc.adapter.iaas.provider.operation.common.enums.Outcome;
  34 import org.onap.appc.adapter.iaas.provider.operation.impl.base.ProviderServerOperation;
  35 import org.onap.appc.exceptions.APPCException;
  36 import org.onap.appc.i18n.Msg;
  37 import com.att.cdp.exceptions.ResourceNotFoundException;
  38 import com.att.cdp.zones.Context;
  39 import com.att.cdp.zones.model.ModelObject;
  40 import com.att.cdp.zones.model.Server;
  41 import com.att.eelf.configuration.EELFLogger;
  42 import com.att.eelf.configuration.EELFManager;
  43 import com.att.eelf.i18n.EELFResourceManager;
  44 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
  45 import org.glassfish.grizzly.http.util.HttpStatus;
  46 import java.util.Map;
  47 import static org.onap.appc.adapter.iaas.provider.operation.common.enums.Operation.STOP_SERVICE;
  48 import static org.onap.appc.adapter.utils.Constants.ADAPTER_NAME;
  49
  50 public class StopServer extends ProviderServerOperation {
  51
  52     private static final EELFLogger logger = EELFManager.getInstance().getLogger(StopServer.class);
  53     private static EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
  54
  55     /**
  56      * @see org.onap.appc.adapter.iaas.ProviderAdapter#stopServer(java.util.Map,
  57      *      org.onap.ccsdk.sli.core.sli.SvcLogicContext)
  58      */
  59     @SuppressWarnings("nls")
  60     public Server stopServer(Map<String, String> params, SvcLogicContext ctx) throws APPCException {
  61         Server server = null;
  62         RequestContext rc = new RequestContext(ctx);
  63         rc.isAlive();
  64
  65         String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
  66
  67         try {
  68             validateParametersExist(params, ProviderAdapter.PROPERTY_INSTANCE_URL,
  69                     ProviderAdapter.PROPERTY_PROVIDER_NAME);
  70
  71             String vm_url = params.get(ProviderAdapter.PROPERTY_INSTANCE_URL);
  72             ctx.setAttribute("STOP_STATUS", "SUCCESS");
  73
  74             VMURL vm = VMURL.parseURL(vm_url);
  75             if (validateVM(rc, appName, vm_url, vm))
  76                 return null;
  77
  78             IdentityURL ident = IdentityURL.parseURL(params.get(ProviderAdapter.PROPERTY_IDENTITY_URL));
  79             String identStr = (ident == null) ? null : ident.toString();
  80
  81             Context context = null;
  82             String tenantName = "Unknown";//to be used also in case of exception
  83             ctx.setAttribute("STOP_STATUS", "ERROR");
  84             try {
  85                 context = getContext(rc, vm_url, identStr);
  86                 if (context != null) {
  87                     tenantName = context.getTenantName();//this varaible also is used in case of exception
  88                     rc.reset();
  89                     server = lookupServer(rc, context, vm.getServerId());
  90                     logger.debug(Msg.SERVER_FOUND, vm_url, tenantName, server.getStatus().toString());
  91
  92                     String msg;
  93                     /*
  94                      * We determine what to do based on the current state of the server
  95                      */
  96
  97                     /*
  98                      * Pending is a bit of a special case. If we find the server is in a pending state, then the
  99                      * provider is in the process of changing state of the server. So, lets try to wait a little bit and
 100                      * see if the state settles down to one we can deal with. If not, then we have to fail the request.
 101                      */
 102
 103                     if (server.getStatus().equals(Server.Status.PENDING)) {
 104                         waitForStateChange(rc, server, Server.Status.READY, Server.Status.RUNNING, Server.Status.ERROR,
 105                                 Server.Status.SUSPENDED, Server.Status.PAUSED, Server.Status.DELETED);
 106                     }
 107
 108                     switch (server.getStatus()) {
 109                         case DELETED:
 110                             // Nothing to do, the server is gone
 111                             msg = EELFResourceManager.format(Msg.SERVER_DELETED, server.getName(), server.getId(),
 112                                     server.getTenantId(), "stopped");
 113                             generateEvent(rc, false, msg);
 114                             logger.error(msg);
 115                             metricsLogger.error(msg);
 116                             throw new RequestFailedException("Stop Server", msg, HttpStatus.METHOD_NOT_ALLOWED_405,
 117                                     server);
 118
 119                         case RUNNING:
 120                             // Attempt to stop the server
 121                             rc.reset();
 122                             stopServer(rc, server);
 123                             generateEvent(rc, true, Outcome.SUCCESS.toString());
 124                             break;
 125
 126                         case ERROR:
 127                             // Server is in error state
 128                             msg = EELFResourceManager.format(Msg.SERVER_ERROR_STATE, server.getName(), server.getId(),
 129                                     server.getTenantId(), "stop");
 130                             generateEvent(rc, false, msg);
 131                             logger.error(msg);
 132                             metricsLogger.error(msg);
 133                             throw new RequestFailedException("Stop Server", msg, HttpStatus.METHOD_NOT_ALLOWED_405,
 134                                     server);
 135
 136                         case READY:
 137                             // Nothing to do, the server was already stopped
 138                             logger.info("Server was already stopped");
 139                             break;
 140
 141                         case PAUSED:
 142                             // if paused, un-pause it and then stop it
 143                             rc.reset();
 144                             unpauseServer(rc, server);
 145                             rc.reset();
 146                             stopServer(rc, server);
 147                             generateEvent(rc, true, Outcome.SUCCESS.toString());
 148                             break;
 149
 150                         case SUSPENDED:
 151                             // Attempt to resume the suspended server and after that stop it
 152                             rc.reset();
 153                             resumeServer(rc, server);
 154                             rc.reset();
 155                             stopServer(rc, server);
 156                             generateEvent(rc, true, Outcome.SUCCESS.toString());
 157                             break;
 158
 159                         default:
 160                             // Hmmm, unknown status, should never occur
 161                             msg = EELFResourceManager.format(Msg.UNKNOWN_SERVER_STATE, server.getName(), server.getId(),
 162                                     server.getTenantId(), server.getStatus().name());
 163                             generateEvent(rc, false, msg);
 164                             logger.error(msg);
 165                             metricsLogger.error(msg);
 166                             throw new RequestFailedException("Stop Server", msg, HttpStatus.METHOD_NOT_ALLOWED_405,
 167                                     server);
 168                     }
 169                     context.close();
 170                     doSuccess(rc);
 171                     ctx.setAttribute("STOP_STATUS", "SUCCESS");
 172                     msg = EELFResourceManager.format(Msg.SUCCESS_EVENT_MESSAGE, "StopServer", vm_url);
 173                     ctx.setAttribute(org.onap.appc.Constants.ATTRIBUTE_SUCCESS_MESSAGE, msg);
 174
 175                 } else {
 176                     ctx.setAttribute("STOP_STATUS", "CONTEXT_NOT_FOUND");
 177                 }
 178             } catch (ResourceNotFoundException e) {
 179                 String msg = EELFResourceManager.format(Msg.SERVER_NOT_FOUND, e, vm_url);
 180                 logger.error(msg);
 181                 doFailure(rc, HttpStatus.NOT_FOUND_404, msg);
 182             } catch (Exception e1) {
 183                 String msg =
 184                         EELFResourceManager.format(Msg.SERVER_OPERATION_EXCEPTION, e1, e1.getClass().getSimpleName(),
 185                                 STOP_SERVICE.toString(), vm_url, tenantName);
 186                 logger.error(msg, e1);
 187                 doFailure(rc, HttpStatus.INTERNAL_SERVER_ERROR_500, msg);
 188             }
 189         } catch (RequestFailedException e) {
 190             logger.error(EELFResourceManager.format(Msg.STOP_SERVER_FAILED, appName, "n/a", "n/a", e.getMessage()));
 191             doFailure(rc, e.getStatus(), e.getMessage());
 192         }
 193
 194         return server;
 195     }
 196
 197     @Override
 198     protected ModelObject executeProviderOperation(Map<String, String> params, SvcLogicContext context)
 199             throws APPCException {
 200         setMDC(STOP_SERVICE.toString(), "App-C IaaS Adapter:Stop", ADAPTER_NAME);
 201         logOperation(Msg.STOPPING_SERVER, params, context);
 202         return stopServer(params, context);
 203     }
 204 }