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/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Modifications Copyright © 2021 Orange.
* ================================================================================
* 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 org.onap.dmaap.mr.tools;
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 java.io.IOException;
import java.io.PrintStream;
import java.util.Set;
import org.onap.dmaap.mr.client.MRClientFactory;
import org.onap.dmaap.mr.client.MRTopicManager;
import org.onap.dmaap.mr.client.MRTopicManager.TopicInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TopicCommand implements Command<MRCommandContext> {
final Logger logger = LoggerFactory.getLogger(TopicCommand.class);
private static final String REQUEST_ERROR_MESSAGE = "Problem with request: ";
private static final String IOEXCEPTION_MESSAGE = "IOException: ";
private static final String HTTP_EXCEPTION_MESSAGE = "HttpException: ";
@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 {
switch (parts[0]) {
case "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(REQUEST_ERROR_MESSAGE + x.getMessage());
logger.error(IOEXCEPTION_MESSAGE, x);
} catch (HttpObjectNotFoundException e) {
out.println("Not found: " + e.getMessage());
logger.error("HttpObjectNotFoundException: ", e);
}
break;
case "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(REQUEST_ERROR_MESSAGE + e.getMessage());
logger.error(HTTP_EXCEPTION_MESSAGE, e);
} catch (IOException e) {
out.println(REQUEST_ERROR_MESSAGE + e.getMessage());
logger.error(IOEXCEPTION_MESSAGE, e);
} catch (NumberFormatException e) {
out.println(REQUEST_ERROR_MESSAGE + e.getMessage());
logger.error("NumberFormatException: ", e);
}
break;
case "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(REQUEST_ERROR_MESSAGE + e.getMessage());
logger.error(HTTP_EXCEPTION_MESSAGE, e);
} catch (IOException e) {
out.println(REQUEST_ERROR_MESSAGE + e.getMessage());
logger.error(IOEXCEPTION_MESSAGE, e);
}
break;
case "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(REQUEST_ERROR_MESSAGE + e.getMessage());
logger.error(HTTP_EXCEPTION_MESSAGE, e);
} catch (IOException e) {
out.println(REQUEST_ERROR_MESSAGE + e.getMessage());
logger.error(IOEXCEPTION_MESSAGE, e);
}
break;
default:
throw new CommandNotReadyException("The command " + parts[0] + " is not available");
}
} 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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