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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 org.apache.log4j.Logger;
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.database.DatabaseClass;
import org.openecomp.dmaapbc.model.ApiError;
import org.openecomp.dmaapbc.model.DcaeLocation;
import org.openecomp.dmaapbc.model.Dmaap;
import org.openecomp.dmaapbc.model.MR_Client;
import org.openecomp.dmaapbc.model.Topic;
import org.openecomp.dmaapbc.model.DmaapObject.DmaapObject_Status;
import org.openecomp.dmaapbc.util.DmaapConfig;
import org.openecomp.dmaapbc.util.Singleton;
public class DmaapService {
static final Logger logger = Logger.getLogger(DmaapService.class);
private Singleton<Dmaap> dmaapholder = DatabaseClass.getDmaap();
// TODO put these in properties file
String topicFactory = "org.openecomp.dcae.dmaap.topicFactory";
String topicMgrRole = "org.openecomp.dmaapBC.TopicMgr";
// TODO confirm this is equivalent to dmaap.getTopicNsRoot() so we can retire it
String dcaeTopicNs = "org.openecomp.dcae.dmaap";
public DmaapService() {
}
public Dmaap getDmaap() {
logger.info( "entering getDmaap()" );
return(dmaapholder.get());
}
public Dmaap addDmaap( Dmaap nd ) {
logger.info( "entering addDmaap()" );
Dmaap dmaap = dmaapholder.get();
if ( dmaap.getVersion().equals( "0")) {
nd.setLastMod();
dmaapholder.update(nd);
AafService aaf = new AafService( ServiceType.AAF_Admin);
boolean anythingWrong = setTopicMgtPerms( nd, aaf ) || createMmaTopic();
if ( anythingWrong ) {
dmaap.setStatus(DmaapObject_Status.INVALID);
}
else {
dmaap.setStatus(DmaapObject_Status.VALID);
}
return dmaap;
}
else {
return dmaap;
}
}
public Dmaap updateDmaap( Dmaap nd ) {
logger.info( "entering updateDmaap()" );
boolean anythingWrong = false;
AafService aaf = new AafService( ServiceType.AAF_Admin);
Dmaap dmaap = dmaapholder.get();
// some triggers for when we attempt to reprovision perms and MMA topic:
// - if the DMaaP Name changes
// - if the version is 0 (this is a handy test to force this processing by updating the DB)
// - if the object is invalid, reprocessing might fix it.
if ( ! dmaap.isStatusValid() || ! nd.getDmaapName().equals(dmaap.getDmaapName()) || dmaap.getVersion().equals( "0") ) {
nd.setLastMod();
dmaapholder.update(nd); //need to set this so the following perms will pick up any new vals.
anythingWrong = setTopicMgtPerms( nd, aaf ) || createMmaTopic();
}
if ( anythingWrong ) {
nd.setStatus(DmaapObject_Status.INVALID);
}
else {
nd.setStatus(DmaapObject_Status.VALID);
}
nd.setLastMod();
dmaapholder.update(nd); // may need to update status...
return(dmaapholder.get());
}
public String getTopicPerm(){
Dmaap dmaap = dmaapholder.get();
return getTopicPerm( dmaap.getDmaapName() );
}
public String getTopicPerm( String val ) {
Dmaap dmaap = dmaapholder.get();
return dmaap.getTopicNsRoot() + "." + val + ".mr.topic";
}
public String getBridgeAdminFqtn(){
Dmaap dmaap = dmaapholder.get();
return(dmaap.getTopicNsRoot() + "." + dmaap.getDmaapName() + "." + dmaap.getBridgeAdminTopic());
}
private boolean setTopicMgtPerms( Dmaap nd, AafService aaf ){
String[] actions = { "create", "destroy" };
String instance = ":" + dcaeTopicNs + "." + nd.getDmaapName() + ".mr.topic:" + dcaeTopicNs + "." + nd.getDmaapName();
for( String action : actions ) {
DmaapPerm perm = new DmaapPerm( topicFactory, instance, action );
int rc = aaf.addPerm( perm );
if ( rc != 201 && rc != 409 ) {
logger.error( "unable to add perm for "+ topicFactory + "|" + instance + "|" + action );
return true;
}
DmaapGrant grant = new DmaapGrant( perm, topicMgrRole );
rc = aaf.addGrant( grant );
if ( rc != 201 && rc != 409 ) {
logger.error( "unable to grant to " + topicMgrRole + " perm for "+ topicFactory + "|" + instance + "|" + action );
return true;
}
}
String t = dcaeTopicNs +"." + nd.getDmaapName() + ".mr.topic";
String[] s = { "view", "pub", "sub" };
actions = s;
instance = "*";
for( String action : actions ) {
DmaapPerm perm = new DmaapPerm( t, instance, action );
int rc = aaf.addPerm( perm );
if ( rc != 201 && rc != 409 ) {
logger.error( "unable to add perm for "+ t + "|" + instance + "|" + action );
return true;
}
DmaapGrant grant = new DmaapGrant( perm, topicMgrRole );
rc = aaf.addGrant( grant );
if ( rc != 201 && rc != 409 ) {
logger.error( "unable to grant to " + topicMgrRole + " perm for "+ topicFactory + "|" + instance + "|" + action );
return true;
}
}
return false;
}
// create the special topic for MMA provisioning.
// return true indicating a problem in topic creation,
// else false means it was ok (created or previously existed)
private boolean createMmaTopic() {
boolean rc = true;
DmaapConfig p = (DmaapConfig)DmaapConfig.getConfig();
Dmaap dmaap = dmaapholder.get();
ArrayList<MR_Client> clients = new ArrayList<MR_Client>();
String[] actions = { "pub", "sub", "view" };
String centralMR = new DcaeLocationService().getCentralLocation();
if ( centralMR == null ) {
return rc;
}
logger.info( "Location for " + dmaap.getBridgeAdminTopic() + " is " + centralMR );
// first client is the Role used by Bus Controller to send messages to MMA
String provRole = p.getProperty("MM.ProvRole");
MR_Client nClient = new MR_Client();
nClient.setAction(actions);
nClient.setClientRole(provRole);
nClient.setDcaeLocationName(centralMR);
clients.add( nClient );
// second client is the Role used by MMA to listen to messages from Bus Controller
String agentRole = p.getProperty("MM.AgentRole");
nClient = new MR_Client();
nClient.setAction(actions);
nClient.setClientRole(agentRole);
nClient.setDcaeLocationName(centralMR);
clients.add( nClient );
// initialize Topic
Topic mmaTopic = new Topic();
mmaTopic.setTopicName(dmaap.getBridgeAdminTopic());
mmaTopic.setClients(clients);
mmaTopic.setOwner("BusController");
mmaTopic.setTopicDescription("topic reserved for MirrorMaker Administration");
mmaTopic.setTnxEnabled("false");
ApiError err = new ApiError();
TopicService svc = new TopicService();
Topic nTopic = svc.addTopic(mmaTopic, err);
if ( err.is2xx() || err.getCode() == 409 ) {
return false;
}
logger.error( "Unable to create topic for " + dmaap.getBridgeAdminTopic() + " err=" + err.getFields() + " fields=" + err.getFields() + " msg=" + err.getMessage());
return rc;
}
}
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