package org.apache.maven.plugins.invoker;
   
   /*
    * 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.
   */
  
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugins.invoker.model.io.xpp3.BuildJobXpp3Reader;
  import org.apache.maven.plugins.annotations.LifecyclePhase;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.codehaus.plexus.util.ReaderFactory;
  import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.Reader;
  
  /**
   * Checks the results of maven-invoker-plugin based integration tests and fails the build if any tests failed.
   *
   * @author Olivier Lamy
   * @since 1.4
   */
  @Mojo( name = "verify", defaultPhase = LifecyclePhase.VERIFY, threadSafe = true )
  public class VerifyMojo
      extends AbstractMojo
  {
  
      /**
       * Flag used to suppress certain invocations. This is useful in tailoring the build using profiles.
       *
       * @since 1.1
       */
      @Parameter( property = "invoker.skip", defaultValue = "false" )
      private boolean skipInvocation;
  
      /**
       * Base directory where all build reports are read from.
       *
       * @since 1.4
       */
      @Parameter( property = "invoker.reportsDirectory", defaultValue = "${project.build.directory}/invoker-reports" )
      private File reportsDirectory;
  
      /**
       * A flag controlling whether failures of the sub builds should fail the main build, too. If set to
       * <code>true</code>, the main build will proceed even if one or more sub builds failed.
       *
       * @since 1.3
       */
      @Parameter( property = "maven.test.failure.ignore", defaultValue = "false" )
      private boolean ignoreFailures;
  
      /**
       * Flag used to suppress the summary output notifying of successes and failures. If set to <code>true</code>, the
       * only indication of the build's success or failure will be the effect it has on the main build (if it fails, the
       * main build should fail as well).
       */
      @Parameter( defaultValue = "false" )
      private boolean suppressSummaries;
  
      /**
       * Set this to <code>true</code> to cause a failure if there are no projects to invoke.
       *
       * @since 1.9
       */
      @Parameter( property = "invoker.failIfNoProjects" )
      private Boolean failIfNoProjects;
  
      /**
       * Invokes Maven on the configured test projects.
       *
       * @throws org.apache.maven.plugin.MojoExecutionException If the goal encountered severe errors.
       * @throws org.apache.maven.plugin.MojoFailureException If any of the Maven builds failed.
       */
      public void execute()
          throws MojoExecutionException, MojoFailureException
      {
          if ( skipInvocation )
          {
              getLog().info( "Skipping invocation per configuration."
                                + " If this is incorrect, ensure the skipInvocation parameter is not set to true." );
             return;
         }
 
         File[] reportFiles = ReportUtils.getReportFiles( reportsDirectory );
         if ( reportFiles.length <= 0 )
         {
             if ( Boolean.TRUE.equals( failIfNoProjects ) )
             {
                 throw new MojoFailureException( "No projects to invoke!" );
             }
             getLog().info( "No invoker report files found, nothing to check." );
             return;
         }
 
         BuildJobXpp3Reader reader = new BuildJobXpp3Reader();
 
         InvokerSession invokerSession = new InvokerSession();
 
         for ( File reportFile : reportFiles )
         {
             try ( Reader xmlReader = ReaderFactory.newXmlReader( reportFile ) )
             {
                 invokerSession.addJob( reader.read( xmlReader ) );
             }
             catch ( XmlPullParserException e )
             {
                 throw new MojoExecutionException( "Failed to parse report file: " + reportFile, e );
             }
             catch ( IOException e )
             {
                 throw new MojoExecutionException( "Failed to read report file: " + reportFile, e );
             }
         }
 
         if ( !suppressSummaries )
         {
             invokerSession.logSummary( getLog(), ignoreFailures );
         }
 
         invokerSession.handleFailures( getLog(), ignoreFailures );
     }
 
 }