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1   package org.apache.maven.lifecycle.internal.builder.singlethreaded;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.util.List;
23  
24  import org.apache.maven.execution.MavenSession;
25  import org.apache.maven.lifecycle.internal.LifecycleModuleBuilder;
26  import org.apache.maven.lifecycle.internal.ProjectBuildList;
27  import org.apache.maven.lifecycle.internal.ProjectSegment;
28  import org.apache.maven.lifecycle.internal.ReactorBuildStatus;
29  import org.apache.maven.lifecycle.internal.ReactorContext;
30  import org.apache.maven.lifecycle.internal.TaskSegment;
31  import org.apache.maven.lifecycle.internal.builder.Builder;
32  import org.codehaus.plexus.component.annotations.Component;
33  import org.codehaus.plexus.component.annotations.Requirement;
34  
35  @Component( role = Builder.class, hint = "singlethreaded" )
36  public class SingleThreadedBuilder
37      implements Builder
38  {
39      @Requirement
40      private LifecycleModuleBuilder lifecycleModuleBuilder;
41  
42      public void build( MavenSession session, ReactorContext reactorContext, ProjectBuildList projectBuilds,
43                         List<TaskSegment> taskSegments, ReactorBuildStatus reactorBuildStatus )
44      {
45          for ( TaskSegment taskSegment : taskSegments )
46          {
47              for ( ProjectSegment projectBuild : projectBuilds.getByTaskSegment( taskSegment ) )
48              {
49                  try
50                  {
51                      lifecycleModuleBuilder.buildProject( session, reactorContext, projectBuild.getProject(),
52                                                           taskSegment );
53                      if ( reactorBuildStatus.isHalted() )
54                      {
55                          break;
56                      }
57                  }
58                  catch ( Exception e )
59                  {
60                      break; // Why are we just ignoring this exception? Are exceptions are being used for flow control
61                  }
62              }
63          }
64      }
65  }