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/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 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=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*
*******************************************************************************/
package com.att.nsa.mr.tools;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.att.nsa.apiClient.http.HttpException;
import com.att.nsa.apiClient.http.HttpObjectNotFoundException;
import com.att.nsa.cmdtool.Command;
import com.att.nsa.cmdtool.CommandNotReadyException;
import com.att.nsa.mr.client.MRClientFactory;
import com.att.nsa.mr.client.MRTopicManager;
import com.att.nsa.mr.client.MRTopicManager.TopicInfo;
public class TopicCommand implements Command<MRCommandContext>
{
final Logger logger = LoggerFactory.getLogger(ApiKeyCommand.class);
@Override
public String[] getMatches ()
{
return new String[]{
"topic (list)",
"topic (list) (\\S*)",
"topic (create) (\\S*) (\\S*) (\\S*)",
"topic (grant|revoke) (read|write) (\\S*) (\\S*)",
};
}
@Override
public void checkReady ( MRCommandContext context ) throws CommandNotReadyException
{
if ( !context.checkClusterReady () )
{
throw new CommandNotReadyException ( "Use 'cluster' to specify a cluster to use." );
}
}
@Override
public void execute ( String[] parts, MRCommandContext context, PrintStream out ) throws CommandNotReadyException
{
final MRTopicManager tm = MRClientFactory.createTopicManager ( context.getCluster(), context.getApiKey(), context.getApiPwd() );
context.applyTracer ( tm );
try
{
if ( parts[0].equals ( "list" ) )
{
try
{
if ( parts.length == 1 )
{
for ( String topic : tm.getTopics () )
{
out.println ( topic );
}
}
else
{
final TopicInfo ti = tm.getTopicMetadata ( parts[1] );
final String owner = ti.getOwner ();
out.println ( " owner: " + ( owner == null ? "<none>" : owner ) );
final String desc = ti.getDescription ();
out.println ( "description: " + ( desc == null ? "<none>" : desc ) );
final Set<String> prods = ti.getAllowedProducers ();
if ( prods != null )
{
out.println ( " write ACL: " );
for ( String key : prods )
{
out.println ( "\t" + key );
}
}
else
{
out.println ( " write ACL: <not active>" );
}
final Set<String> cons = ti.getAllowedConsumers ();
if ( cons != null )
{
out.println ( " read ACL: " );
for ( String key : cons )
{
out.println ( "\t" + key );
}
}
else
{
out.println ( " read ACL: <not active>" );
}
}
}
catch ( IOException x )
{
out.println ( "Problem with request: " + x.getMessage () );
logger.error("IOException: ", x);
}
catch ( HttpObjectNotFoundException e )
{
out.println ( "Not found: " + e.getMessage () );
logger.error("HttpObjectNotFoundException: ", e);
}
}
else if ( parts[0].equals ( "create" ) )
{
try
{
final int partitions = Integer.parseInt ( parts[2] );
final int replicas = Integer.parseInt ( parts[3] );
tm.createTopic ( parts[1], "", partitions, replicas );
}
catch ( HttpException e )
{
out.println ( "Problem with request: " + e.getMessage () );
logger.error("HttpException: ", e);
}
catch ( IOException e )
{
out.println ( "Problem with request: " + e.getMessage () );
logger.error("IOException: ", e);
}
catch ( NumberFormatException e )
{
out.println ( "Problem with request: " + e.getMessage () );
logger.error("NumberFormatException: ", e);
}
}
else if ( parts[0].equals ( "grant" ) )
{
try
{
if ( parts[1].equals ( "write" ) )
{
tm.allowProducer ( parts[2], parts[3] );
}
else if ( parts[1].equals ( "read" ) )
{
tm.allowConsumer ( parts[2], parts[3] );
}
}
catch ( HttpException e )
{
out.println ( "Problem with request: " + e.getMessage () );
logger.error("HttpException: ", e);
}
catch ( IOException e )
{
out.println ( "Problem with request: " + e.getMessage () );
logger.error("IOException: ", e);
}
}
else if ( parts[0].equals ( "revoke" ) )
{
try
{
if ( parts[1].equals ( "write" ) )
{
tm.revokeProducer ( parts[2], parts[3] );
}
else if ( parts[1].equals ( "read" ) )
{
tm.revokeConsumer ( parts[2], parts[3] );
}
}
catch ( HttpException e )
{
out.println ( "Problem with request: " + e.getMessage () );
logger.error("HttpException: ", e);
}
catch ( IOException e )
{
out.println ( "Problem with request: " + e.getMessage () );
logger.error("IOException: ", e);
}
}
}
finally
{
tm.close ();
}
}
@Override
public void displayHelp ( PrintStream out )
{
out.println ( "topic list" );
out.println ( "topic list <topicName>" );
out.println ( "topic create <topicName> <partitions> <replicas>" );
out.println ( "topic grant write|read <topicName> <apiKey>" );
out.println ( "topic revoke write|read <topicName> <apiKey>" );
}
}
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