1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.lifecycle.internal.builder.singlethreaded;
20
21 import javax.inject.Inject;
22 import javax.inject.Named;
23 import javax.inject.Singleton;
24
25 import java.util.List;
26
27 import org.apache.maven.execution.MavenSession;
28 import org.apache.maven.lifecycle.internal.LifecycleModuleBuilder;
29 import org.apache.maven.lifecycle.internal.ProjectBuildList;
30 import org.apache.maven.lifecycle.internal.ProjectSegment;
31 import org.apache.maven.lifecycle.internal.ReactorBuildStatus;
32 import org.apache.maven.lifecycle.internal.ReactorContext;
33 import org.apache.maven.lifecycle.internal.TaskSegment;
34 import org.apache.maven.lifecycle.internal.builder.Builder;
35
36 /**
37 * <p>
38 * A {@link Builder} encapsulates a strategy for building a set of Maven projects. The default strategy in Maven builds
39 * the the projects serially, but a {@link Builder} can employ any type of concurrency model to build the projects.
40 */
41 @Singleton
42 @Named("singlethreaded")
43 public class SingleThreadedBuilder implements Builder {
44 @Inject
45 private LifecycleModuleBuilder lifecycleModuleBuilder;
46
47 public void build(
48 MavenSession session,
49 ReactorContext reactorContext,
50 ProjectBuildList projectBuilds,
51 List<TaskSegment> taskSegments,
52 ReactorBuildStatus reactorBuildStatus) {
53 for (TaskSegment taskSegment : taskSegments) {
54 for (ProjectSegment projectBuild : projectBuilds.getByTaskSegment(taskSegment)) {
55 try {
56 lifecycleModuleBuilder.buildProject(
57 session, reactorContext, projectBuild.getProject(), taskSegment);
58 if (reactorBuildStatus.isHalted()) {
59 break;
60 }
61 } catch (Exception e) {
62 break; // Why are we just ignoring this exception? Are exceptions are being used for flow control
63 }
64 }
65 }
66 }
67 }