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/*-
* ============LICENSE_START=======================================================
* OpenECOMP - org.openecomp.dmaapbc
* ================================================================================
* 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.dmaapbc.service;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.ws.rs.core.Response.Status;
import org.openecomp.dmaapbc.aaf.AafService;
import org.openecomp.dmaapbc.aaf.DmaapGrant;
import org.openecomp.dmaapbc.aaf.DmaapPerm;
import org.openecomp.dmaapbc.aaf.AafService.ServiceType;
import org.openecomp.dmaapbc.client.MrProvConnection;
import org.openecomp.dmaapbc.database.DatabaseClass;
import org.openecomp.dmaapbc.logging.BaseLoggingClass;
import org.openecomp.dmaapbc.model.ApiError;
import org.openecomp.dmaapbc.model.DcaeLocation;
import org.openecomp.dmaapbc.model.MR_Client;
import org.openecomp.dmaapbc.model.MR_Cluster;
import org.openecomp.dmaapbc.model.Topic;
import org.openecomp.dmaapbc.model.DmaapObject.DmaapObject_Status;
import org.openecomp.dmaapbc.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;
}
}
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