Package org.jacoco.maven

Source Code of org.jacoco.maven.DumpMojo

/*******************************************************************************
* Copyright (c) 2009, 2014 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
*    Chas Honton, Marc R. Hoffmann - initial implementation
*
*******************************************************************************/
package org.jacoco.maven;

import static java.lang.String.format;

import java.io.File;
import java.io.IOException;
import java.net.InetAddress;

import org.apache.maven.plugin.MojoExecutionException;
import org.jacoco.core.tools.ExecDumpClient;
import org.jacoco.core.tools.ExecFileLoader;

/**
* <p>
* Request a dump over TCP/IP from a JaCoCo agent running in
* <code>tcpserver</code> mode.
* </p>
*
* <p>
* Note concerning parallel builds: While the dump goal as such is thread safe,
* it has to be considered that TCP/IP server ports of the agents are a shared
* resource.
* </p>
*
* @goal dump
* @phase post-integration-test
* @threadSafe
* @since 0.6.4
*/
public class DumpMojo extends AbstractJacocoMojo {

  /**
   * Path to the output file for execution data.
   *
   * @parameter property="jacoco.destFile"
   *            default-value="${project.build.directory}/jacoco.exec"
   */
  private File destFile;

  /**
   * If set to true and the execution data file already exists, coverage data
   * is appended to the existing file. If set to false, an existing execution
   * data file will be replaced.
   *
   * @parameter property="jacoco.append" default-value="true"
   */
  private boolean append;

  /**
   * Sets whether execution data should be downloaded from the remote host.
   *
   * @parameter property="jacoco.dump" default-value="true"
   */
  private boolean dump;

  /**
   * Sets whether a reset command should be sent after the execution data has
   * been dumped.
   *
   * @parameter property="jacoco.reset" default-value="false"
   */
  private boolean reset;

  /**
   * IP address or hostname to connect to.
   *
   * @parameter property="jacoco.address"
   */
  private String address;

  /**
   * Port number to connect to. If multiple JaCoCo agents should run on the
   * same machine, different ports have to be specified for the agents.
   *
   * @parameter property="jacoco.port" default-value="6300"
   */
  private int port;

  /**
   * Number of retries which the goal will attempt to establish a connection.
   * This can be used to wait until the target JVM is successfully launched.
   *
   * @parameter property="jacoco.retryCount" default-value="10"
   */
  private int retryCount;

  @Override
  public void executeMojo() throws MojoExecutionException {
    final ExecDumpClient client = new ExecDumpClient() {
      @Override
      protected void onConnecting(final InetAddress address,
          final int port) {
        getLog().info(
            format("Connecting to %s:%s", address,
                Integer.valueOf(port)));
      }

      @Override
      protected void onConnectionFailure(final IOException exception) {
        getLog().info(exception.getMessage());
      }
    };
    client.setDump(dump);
    client.setReset(reset);
    client.setRetryCount(retryCount);

    try {
      final ExecFileLoader loader = client.dump(address, port);
      if (dump) {
        getLog().info(
            format("Dumping execution data to %s",
                destFile.getAbsolutePath()));
        loader.save(destFile, append);
      }
    } catch (final IOException e) {
      throw new MojoExecutionException("Unable to dump coverage data", e);
    }
  }

}
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