org.jclouds.examples.rackspace.clouddns.CRUDReverseDNSRecords.java Source code

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Here is the source code for org.jclouds.examples.rackspace.clouddns.CRUDReverseDNSRecords.java

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/*
 * 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.jclouds.examples.rackspace.clouddns;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
import com.google.common.io.Closeables;
import org.jclouds.ContextBuilder;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.examples.rackspace.cloudservers.CloudServersPublish;
import org.jclouds.rackspace.clouddns.v1.CloudDNSApi;
import org.jclouds.rackspace.clouddns.v1.domain.Record;
import org.jclouds.rackspace.clouddns.v1.domain.RecordDetail;
import org.jclouds.rackspace.clouddns.v1.features.ReverseDNSApi;

import java.io.Closeable;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeoutException;

import static org.jclouds.examples.rackspace.clouddns.Constants.*;
import static org.jclouds.rackspace.clouddns.v1.predicates.JobPredicates.awaitComplete;

/**
 * This example creates reverse DNS records on an existing domain for a Cloud Server.
 *
 */
public class CRUDReverseDNSRecords implements Closeable {
    private final CloudDNSApi dnsApi;
    private final ReverseDNSApi reverseDNSApi;

    /**
     * To get a username and API key see http://jclouds.apache.org/guides/rackspace/
     *
     * The first argument (args[0]) must be your username
     * The second argument (args[1]) must be your API key
     */
    public static void main(String[] args) throws IOException {
        CRUDReverseDNSRecords crudReverseDNSRecords = new CRUDReverseDNSRecords(args[0], args[1]);

        try {
            List<String> argsList = Lists.newArrayList(args);
            argsList.add("1"); // the number of Cloud Servers to start
            NodeMetadata node = CloudServersPublish.getPublishedCloudServers(argsList).iterator().next();

            RecordDetail recordDetail = crudReverseDNSRecords.createReverseDNSRecords(node);
            crudReverseDNSRecords.listReverseDNSRecords(node);
            crudReverseDNSRecords.updateReverseDNSRecords(node, recordDetail);
            crudReverseDNSRecords.deleteAllReverseDNSRecords(node);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            crudReverseDNSRecords.close();
        }
    }

    public CRUDReverseDNSRecords(String username, String apiKey) {
        dnsApi = ContextBuilder.newBuilder(PROVIDER).credentials(username, apiKey).buildApi(CloudDNSApi.class);
        reverseDNSApi = dnsApi.getReverseDNSApi(CLOUD_SERVERS);
    }

    private RecordDetail createReverseDNSRecords(NodeMetadata node) throws TimeoutException {
        System.out.format("Create Reverse DNS Records%n");

        Record createPTRRecordIPv4 = Record.builder().name(NAME).type("PTR")
                .data(node.getPublicAddresses().iterator().next()).ttl(11235).build();

        Set<Record> records = ImmutableSet.of(createPTRRecordIPv4);

        Iterable<RecordDetail> recordDetails = awaitComplete(dnsApi, reverseDNSApi.create(node.getUri(), records));

        RecordDetail recordDetail = recordDetails.iterator().next();
        System.out.format("  %s%n", recordDetail);

        return recordDetail;
    }

    private void listReverseDNSRecords(NodeMetadata node) {
        System.out.format("List Reverse DNS Records%n");

        Iterable<RecordDetail> recordDetails = reverseDNSApi.list(node.getUri()).concat();

        for (RecordDetail recordDetail : recordDetails) {
            System.out.format("  %s%n", recordDetail);
        }
    }

    private void updateReverseDNSRecords(NodeMetadata node, RecordDetail recordDetail) throws TimeoutException {
        System.out.format("Update Reverse DNS Records%n");

        Record updatePTRRecord = recordDetail.getRecord().toBuilder().comment("Hello Cloud DNS").build();
        Map<String, Record> idsToRecords = ImmutableMap.of(recordDetail.getId(), updatePTRRecord);

        awaitComplete(dnsApi, reverseDNSApi.update(node.getUri(), idsToRecords));

        System.out.format("  %s%n", reverseDNSApi.get(node.getUri(), recordDetail.getId()));
    }

    private void deleteAllReverseDNSRecords(NodeMetadata node) throws TimeoutException {
        System.out.format("Delete Reverse DNS Records%n");

        awaitComplete(dnsApi, dnsApi.getReverseDNSApi(CLOUD_SERVERS).deleteAll(node.getUri()));

        System.out.format("  Deleted all reverse DNS records%n");
    }

    /**
     * Always close your service when you're done with it.
     *
     * Note that closing quietly like this is not necessary in Java 7.
     * You would use try-with-resources in the main method instead.
     */
    public void close() throws IOException {
        Closeables.close(dnsApi, true);
    }
}