pulsar-broker/src/main/java/org/apache/pulsar/PulsarInitialNamespaceSetup.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
package org.apache.pulsar;

import com.beust.jcommander.JCommander;
import com.beust.jcommander.Parameter;
import java.util.List;
import org.apache.pulsar.common.naming.NamespaceName;
import org.apache.zookeeper.ZooKeeper;

/**
 * Setup the initial namespace of the cluster without startup the Pulsar broker.
 */
public class PulsarInitialNamespaceSetup {

    private static class Arguments {

        @Parameter(names = { "-c", "--cluster" }, description = "Cluster name", required = true)
        private String cluster;

        @Parameter(names = { "-cs",
                "--configuration-store" }, description = "Configuration Store connection string", required = true)
        private String configurationStore;

        @Parameter(names = {
                "--zookeeper-session-timeout-ms"
        }, description = "Local zookeeper session timeout ms")
        private int zkSessionTimeoutMillis = 30000;

        @Parameter(description = "tenant/namespace", required = true)
        private List<String> namespaces;

        @Parameter(names = { "-h", "--help" }, description = "Show this help message")
        private boolean help = false;

    }

    public static void main(String[] args) throws Exception {
        Arguments arguments = new Arguments();
        JCommander jcommander = new JCommander();
        try {
            jcommander.addObject(arguments);
            jcommander.parse(args);
            if (arguments.help) {
                jcommander.usage();
                return;
            }
        } catch (Exception e) {
            jcommander.usage();
            throw e;
        }

        if (arguments.configurationStore == null) {
            System.err.println("Configuration store address argument is required (--configuration-store)");
            jcommander.usage();
            System.exit(1);
        }

        ZooKeeper configStoreZk = PulsarClusterMetadataSetup
                .initZk(arguments.configurationStore, arguments.zkSessionTimeoutMillis);

        for (String namespace : arguments.namespaces) {
            NamespaceName namespaceName = null;
            try {
                namespaceName = NamespaceName.get(namespace);
            } catch (Exception e) {
                System.out.println("Invalid namespace name.");
                System.exit(1);
            }

            // Create system tenant
            PulsarClusterMetadataSetup
                    .createTenantIfAbsent(configStoreZk, namespaceName.getTenant(), arguments.cluster);

            // Create system namespace
            PulsarClusterMetadataSetup.createNamespaceIfAbsent(configStoreZk, namespaceName,
                    arguments.cluster);
        }

        System.out.println("Initial namespace setup success");
    }
}