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 /**
36 * <p>
37 * A {@link Builder} encapsulates a strategy for building a set of Maven projects. The default strategy in Maven builds
38 * the the projects serially, but a {@link Builder} can employ any type of concurrency model to build the projects.
39 */
40 @Component( role = Builder.class, hint = "singlethreaded" )
41 public class SingleThreadedBuilder
42 implements Builder
43 {
44 @Requirement
45 private LifecycleModuleBuilder lifecycleModuleBuilder;
46
47 public void build( MavenSession session, ReactorContext reactorContext, ProjectBuildList projectBuilds,
48 List<TaskSegment> taskSegments, ReactorBuildStatus reactorBuildStatus )
49 {
50 for ( TaskSegment taskSegment : taskSegments )
51 {
52 for ( ProjectSegment projectBuild : projectBuilds.getByTaskSegment( taskSegment ) )
53 {
54 try
55 {
56 lifecycleModuleBuilder.buildProject( session, reactorContext, projectBuild.getProject(),
57 taskSegment );
58 if ( reactorBuildStatus.isHalted() )
59 {
60 break;
61 }
62 }
63 catch ( Exception e )
64 {
65 break; // Why are we just ignoring this exception? Are exceptions are being used for flow control
66 }
67 }
68 }
69 }
70 }