DMAAP-83 Initial code import
[dmaap/dbcapi.git] / src / main / java / org / onap / dmaap / dbcapi / service / MR_ClientService.java
diff --git a/src/main/java/org/onap/dmaap/dbcapi/service/MR_ClientService.java b/src/main/java/org/onap/dmaap/dbcapi/service/MR_ClientService.java
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+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dmaap
+ * ================================================================================
+ * 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.onap.dmaap.dbcapi.service;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import javax.ws.rs.core.Response.Status;
+
+
+
+
+
+
+
+
+
+import org.onap.dmaap.dbcapi.aaf.AafService;
+import org.onap.dmaap.dbcapi.aaf.DmaapGrant;
+import org.onap.dmaap.dbcapi.aaf.DmaapPerm;
+import org.onap.dmaap.dbcapi.aaf.AafService.ServiceType;
+import org.onap.dmaap.dbcapi.aaf.client.MrProvConnection;
+import org.onap.dmaap.dbcapi.aaf.database.DatabaseClass;
+import org.onap.dmaap.dbcapi.logging.BaseLoggingClass;
+import org.onap.dmaap.dbcapi.model.ApiError;
+import org.onap.dmaap.dbcapi.model.DcaeLocation;
+import org.onap.dmaap.dbcapi.model.MR_Client;
+import org.onap.dmaap.dbcapi.model.MR_Cluster;
+import org.onap.dmaap.dbcapi.model.Topic;
+import org.onap.dmaap.dbcapi.model.DmaapObject.DmaapObject_Status;
+import org.onap.dmaap.dbcapi.util.DmaapConfig;
+
+public class MR_ClientService extends BaseLoggingClass{
+
+       private int deleteLevel;
+       private Map<String, MR_Client> mr_clients = DatabaseClass.getMr_clients();
+       private Map<String, MR_Cluster> clusters = DatabaseClass.getMr_clusters();
+       private Map<String, Topic> topics = DatabaseClass.getTopics();
+       private Map<String, DcaeLocation> locations = DatabaseClass.getDcaeLocations();
+       private DmaapService dmaap = new DmaapService();
+       
+       public MR_ClientService() {
+               DmaapConfig p = (DmaapConfig)DmaapConfig.getConfig();
+               
+               deleteLevel = Integer.valueOf(p.getProperty("MR.ClientDeleteLevel", "0" ));
+       }
+       
+       public Map<String, MR_Client> getMR_Clients() {                 
+               return mr_clients;
+       }
+               
+       public List<MR_Client> getAllMr_Clients() {
+               return new ArrayList<MR_Client>(mr_clients.values());
+       }
+       
+       public ArrayList<MR_Client> getAllMrClients(String fqtn) {
+               ArrayList<MR_Client> results = new ArrayList<MR_Client>();
+               for (Map.Entry<String, MR_Client> entry : mr_clients.entrySet())
+               {
+                       MR_Client client = entry.getValue();
+                   if ( fqtn.equals(client.getFqtn() ) ) {
+                       results.add( client );
+                   }
+               }
+               return results;
+       }       
+
+       public ArrayList<MR_Client> getClientsByLocation(String location) {
+               ArrayList<MR_Client> results = new ArrayList<MR_Client>();
+               for (Map.Entry<String, MR_Client> entry : mr_clients.entrySet())
+               {
+                       MR_Client client = entry.getValue();
+                   if ( location.equals(client.getDcaeLocationName() ) ) {
+                       results.add( client );
+                   }
+               }
+               return results;
+       }       
+       
+       public void refreshClients( String location ) {
+               ApiError err = new ApiError();
+               ArrayList<MR_Client> clients = getClientsByLocation( location );
+               for( MR_Client client : clients ) {
+                       Topic topic = topics.get(client.getFqtn());
+                       if ( topic != null ) {
+                               addMr_Client( client, topic, err);
+                       }
+                       
+                       
+               }
+       }
+       
+       public MR_Client getMr_Client( String key, ApiError apiError ) {                        
+               MR_Client c =  mr_clients.get( key );
+               if ( c == null ) {
+                       apiError.setCode(Status.NOT_FOUND.getStatusCode());
+                       apiError.setFields( "mrClientId");
+                       apiError.setMessage("mrClientId " + key + " not found" );
+               } else {
+                       apiError.setCode(200);
+               }
+               return c;
+       }
+
+       public MR_Client addMr_Client( MR_Client client, Topic topic, ApiError err ) {
+               if ( client.getDcaeLocationName().isEmpty()) {
+                       logger.info( "Client  dcaeLocation that doesn't exist or not specified" );
+                       return null;
+               }
+               grantClientPerms(  client,  err);
+               if ( ! client.isStatusValid()) {
+                       return null;
+               }
+               String centralFqdn = null;
+               DcaeLocation candidate = locations.get(client.getDcaeLocationName());
+               if ( candidate != null && candidate.isCentral() ) {
+                       DmaapConfig p = ( DmaapConfig)DmaapConfig.getConfig();
+                       centralFqdn = p.getProperty("MR.CentralCname");
+               }
+               MR_Cluster cluster = clusters.get( client.getDcaeLocationName());
+               if (  cluster != null ) {
+                       client.setTopicURL(cluster.genTopicURL(centralFqdn, client.getFqtn()));
+                       if ( centralFqdn == null ) {
+                               client.setStatus( addTopicToCluster( cluster, topic, err));
+                               if( ! err.is2xx() && err.getCode() != 409 ) {
+                                       topic.setFqtn(err.getMessage());
+                                       return null;
+                               }
+                       
+                       } else {
+                               MR_ClusterService clusters = new MR_ClusterService();   
+                               // in 1610, MM should only exist for edge-to-central
+                               //  we use a cname for the central target
+                               // but still need to provision topics on all central MRs
+                               for( MR_Cluster central: clusters.getCentralClusters() ) {
+                                       client.setStatus( addTopicToCluster( central, topic, err));
+                                       if( ! err.is2xx() && err.getCode() != 409 ) {
+                                               topic.setFqtn(err.getMessage());
+                                               return null;
+                                       }
+                               }
+                       }
+                       
+               } else {
+                       logger.info( "Client references a dcaeLocation that doesn't exist:" + client.getDcaeLocationName());
+                       client.setStatus( DmaapObject_Status.STAGED);
+                       //return null;
+               }
+
+               mr_clients.put( client.getMrClientId(), client );
+
+               err.setCode(200);
+               
+               return client;
+       }
+       
+       private DmaapObject_Status addTopicToCluster( MR_Cluster cluster, Topic topic, ApiError err  ){
+               
+               MrProvConnection prov = new MrProvConnection();
+               logger.info( "POST topic " + topic.getFqtn() + " to cluster " + cluster.getFqdn() + " in loc " + cluster.getDcaeLocationName());
+               if ( prov.makeTopicConnection(cluster)) {
+                       String resp = prov.doPostTopic(topic, err);
+                       logger.info( "response code: " + err.getCode() );
+                       if ( err.is2xx() || err.getCode() == 409 ) {
+                               return DmaapObject_Status.VALID;
+                       } 
+               }
+               return DmaapObject_Status.INVALID;
+       }
+       
+       private void grantClientPerms( MR_Client client, ApiError err) {
+               AafService aaf = new AafService(ServiceType.AAF_TopicMgr);
+               
+               String instance = ":topic." + client.getFqtn();
+               client.setStatus( DmaapObject_Status.VALID);
+               for( String want : client.getAction() ) {
+                       int rc;
+                       DmaapPerm perm = new DmaapPerm( dmaap.getTopicPerm(), instance, want );
+                       DmaapGrant g = new DmaapGrant( perm, client.getClientRole() );
+                       rc = aaf.addGrant( g );
+                       if ( rc != 201 && rc != 409 ) {
+                               client.setStatus( DmaapObject_Status.INVALID);
+                               err.setCode(rc);
+                               err.setMessage( "Grant of " + dmaap.getTopicPerm() + "|" + instance + "|" + want + " failed for " + client.getClientRole() );
+                               logger.warn( err.getMessage());
+                               return;
+                       } 
+               }
+       }
+       
+       private void revokeClientPerms( MR_Client client, ApiError err) {
+               AafService aaf = new AafService(ServiceType.AAF_TopicMgr);
+               
+               String instance = ":topic." + client.getFqtn();
+               client.setStatus( DmaapObject_Status.VALID);
+               for( String want : client.getAction() ) {
+                       int rc;
+                       DmaapPerm perm = new DmaapPerm( dmaap.getTopicPerm(), instance, want );
+                       DmaapGrant g = new DmaapGrant( perm, client.getClientRole() );
+                       rc = aaf.delGrant( g );
+                       if ( rc != 200 && rc != 404 ) {
+                               client.setStatus( DmaapObject_Status.INVALID);
+                               err.setCode(rc);
+                               err.setMessage( "Revoke of " + dmaap.getTopicPerm() + "|" + instance + "|" + want + " failed for " + client.getClientRole() );
+                               logger.warn( err.getMessage());
+                               return;
+                       } 
+               }
+       }
+       
+       public MR_Client updateMr_Client( MR_Client client, ApiError apiError ) {
+               MR_Client c =  mr_clients.get( client.getMrClientId());
+               if ( c == null ) {
+                       apiError.setCode(Status.NOT_FOUND.getStatusCode());
+                       apiError.setFields( "mrClientId");
+                       apiError.setMessage("mrClientId " + client.getMrClientId() + " not found" );
+               } else {
+                       apiError.setCode(200);
+               }
+               mr_clients.put( client.getMrClientId(), client );
+               return client;
+       }
+               
+       public void removeMr_Client( String key, boolean updateTopicView, ApiError apiError ) {
+               MR_Client client =  mr_clients.get( key );
+               if ( client == null ) {
+                       apiError.setCode(Status.NOT_FOUND.getStatusCode());
+                       apiError.setFields( "mrClientId");
+                       apiError.setMessage("mrClientId " + key + " not found" );
+                       return;
+               } else {
+                       apiError.setCode(200);
+               }
+               
+               if ( updateTopicView == true ) {
+
+                       TopicService topics = new TopicService();
+                       
+                       Topic t = topics.getTopic(client.getFqtn(), apiError );
+                       if ( t != null ) {      
+                               ArrayList<MR_Client> tc = t.getClients();
+                               for( MR_Client c: tc) {
+                                       if ( c.getMrClientId().equals(client.getMrClientId())) {
+                                               tc.remove(c);
+                                               break;
+                                       }
+                               }
+                               t.setClients(tc);
+                               topics.updateTopic( t, apiError );
+                       }
+
+               }
+
+               
+               // remove from AAF
+               if ( deleteLevel >= 2 ) {
+                       revokeClientPerms( client, apiError );
+                       if ( ! apiError.is2xx()) {
+                               return;
+                       }
+               }
+               // remove from DB 
+               if ( deleteLevel >= 1 ) {
+                       mr_clients.remove(key);
+               }
+
+               return;
+       }
+       
+}