br.com.objectos.aws.rds.maven.plugin.CreateSnapshotMojo Maven / Gradle / Ivy

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/*
 * Copyright 2015 Objectos, Fábrica de Software LTDA.
 *
 * 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.
 */
package br.com.objectos.aws.rds.maven.plugin;

import java.util.List;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.rds.AmazonRDSClient;
import com.amazonaws.services.rds.model.CreateDBSnapshotRequest;
import com.amazonaws.services.rds.model.DBSnapshot;
import com.amazonaws.services.rds.model.DescribeDBSnapshotsRequest;
import com.amazonaws.services.rds.model.DescribeDBSnapshotsResult;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugin.logging.Log;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;

/**
 * @author [email protected] (Marcio Endo)
 */
@Mojo(name = "create-snapshot")
public class CreateSnapshotMojo extends AbstractMojo {

  @Parameter(required = true)
  private String accessKey;

  @Parameter(required = true)
  private String secretKey;

  @Parameter(required = true)
  private String dBInstanceIdentifier;

  @Parameter(required = true)
  private String dBSnapshotIdentifier;

  @Parameter
  private boolean skip;

  @Override
  public void execute() throws MojoExecutionException, MojoFailureException {
    if (!skip) {
      execute0();
    }
  }

  void info(String template, Object... args) {
    String message = String.format(template, args);
    logger().info(message);
  }

  private DBSnapshot describeSnapshot(AmazonRDSClient client) {
    DBSnapshot snapshot = null;

    DescribeDBSnapshotsRequest describeDBSnapshotsRequest = new DescribeDBSnapshotsRequest()
        .withDBSnapshotIdentifier(dBSnapshotIdentifier);

    DescribeDBSnapshotsResult describeDBSnapshots = client.describeDBSnapshots(describeDBSnapshotsRequest);
    List list = describeDBSnapshots.getDBSnapshots();

    if (!list.isEmpty()) {
      snapshot = list.get(0);
    }

    return snapshot;
  }

  private void execute0() throws MojoExecutionException {
    AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);
    AmazonRDSClient client = new AmazonRDSClient(credentials);

    CreateDBSnapshotRequest createDBSnapshotRequest = new CreateDBSnapshotRequest()
        .withDBInstanceIdentifier(dBInstanceIdentifier)
        .withDBSnapshotIdentifier(dBSnapshotIdentifier);

    info("Starting RDS Snapshot '%s' at '%s'", dBSnapshotIdentifier, dBInstanceIdentifier);
    long startTime = System.currentTimeMillis();

    DBSnapshot snapshot = client.createDBSnapshot(createDBSnapshotRequest);
    info("Backing up... please wait.");

    while (!isDone(snapshot)) {
      try {
        Thread.sleep(5000);
        snapshot = describeSnapshot(client);

        if (snapshot == null) {
          break;
        }
      } catch (InterruptedException e) {
        throw new MojoExecutionException("Interrupted while waiting", e);
      }
    }

    long endTime = System.currentTimeMillis();

    info("Snapshot took %d ms", endTime - startTime);
  }

  private boolean isDone(DBSnapshot snapshot) {
    String status = snapshot.getStatus();
    return "available".equalsIgnoreCase(status);
  }

  private Log logger() {
    return getLog();
  }

}