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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.cmdtool.Command;
import com.att.nsa.cmdtool.CommandNotReadyException;
import java.io.IOException;
import java.io.PrintStream;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.onap.dmaap.mr.client.MRBatchingPublisher;
import org.onap.dmaap.mr.client.MRClientFactory;
import org.onap.dmaap.mr.client.MRConsumer;
import org.onap.dmaap.mr.client.MRPublisher.Message;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MessageCommand implements Command<MRCommandContext> {
final Logger logger = LoggerFactory.getLogger(MessageCommand.class);
private static final String SENDING_PROBLEM_MESSAGE = "Problem sending message: ";
@Override
public String[] getMatches() {
return new String[] {
"(post) (\\S*) (\\S*) (.*)",
"(read) (\\S*) (\\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 {
if (parts[0].equalsIgnoreCase("read")) {
final MRConsumer cc = MRClientFactory.createConsumer(context.getCluster(), parts[1], parts[2], parts[3],
-1, -1, null, context.getApiKey(), context.getApiPwd());
context.applyTracer(cc);
try {
for (String msg : cc.fetch()) {
out.println(msg);
}
} catch (Exception e) {
out.println("Problem fetching messages: " + e.getMessage());
logger.error("Problem fetching messages: ", e);
} finally {
cc.close();
}
} else {
final MRBatchingPublisher pub = ToolsUtil.createBatchPublisher(context, parts[1]);
try {
pub.send(parts[2], parts[3]);
} catch (IOException e) {
out.println(SENDING_PROBLEM_MESSAGE + e.getMessage());
logger.error(SENDING_PROBLEM_MESSAGE, e);
} finally {
List<Message> left = null;
try {
left = pub.close(500, TimeUnit.MILLISECONDS);
} catch (IOException e) {
out.println(SENDING_PROBLEM_MESSAGE + e.getMessage());
logger.error(SENDING_PROBLEM_MESSAGE, e);
} catch (InterruptedException e) {
out.println(SENDING_PROBLEM_MESSAGE + e.getMessage());
logger.error(SENDING_PROBLEM_MESSAGE, e);
Thread.currentThread().interrupt();
}
if (left != null && !left.isEmpty()) {
out.println(left.size() + " messages not sent.");
}
}
}
}
@Override
public void displayHelp(PrintStream out) {
out.println("post <topicName> <partition> <message>");
out.println("read <topicName> <consumerGroup> <consumerId>");
}
}
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