1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
package org.apache.maven.lifecycle.internal.builder.multithreaded;
/*
* 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.execution.ProjectDependencyGraph;
import org.apache.maven.lifecycle.internal.ProjectBuildList;
import org.apache.maven.lifecycle.internal.ProjectSegment;
import org.apache.maven.project.MavenProject;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* Presents a view of the Dependency Graph that is suited for concurrent building.
*
* @since 3.0
* @author Kristian Rosenvold
* <p/>
* NOTE: This class is not part of any public api and can be changed or deleted without prior notice.
*/
public class ConcurrencyDependencyGraph
{
private final ProjectBuildList projectBuilds;
private final ProjectDependencyGraph projectDependencyGraph;
private final HashSet<MavenProject> finishedProjects = new HashSet<MavenProject>();
public ConcurrencyDependencyGraph( ProjectBuildList projectBuilds, ProjectDependencyGraph projectDependencyGraph )
{
this.projectDependencyGraph = projectDependencyGraph;
this.projectBuilds = projectBuilds;
}
public int getNumberOfBuilds()
{
return projectBuilds.size();
}
/**
* Gets all the builds that have no reactor-dependencies
*
* @return A list of all the initial builds
*/
public List<MavenProject> getRootSchedulableBuilds()
{
List<MavenProject> result = new ArrayList<MavenProject>();
for ( ProjectSegment projectBuild : projectBuilds )
{
if ( projectDependencyGraph.getUpstreamProjects( projectBuild.getProject(), false ).size() == 0 )
{
result.add( projectBuild.getProject() );
}
}
return result;
}
/**
* Marks the provided project as finished. Returns a list of
*
* @param mavenProject The project
* @return The list of builds that are eligible for starting now that the provided project is done
*/
public List<MavenProject> markAsFinished( MavenProject mavenProject )
{
finishedProjects.add( mavenProject );
return getSchedulableNewProcesses( mavenProject );
}
private List<MavenProject> getSchedulableNewProcesses( MavenProject finishedProject )
{
List<MavenProject> result = new ArrayList<MavenProject>();
// schedule dependent projects, if all of their requirements are met
for ( MavenProject dependentProject : projectDependencyGraph.getDownstreamProjects( finishedProject, false ) )
{
final List<MavenProject> upstreamProjects =
projectDependencyGraph.getUpstreamProjects( dependentProject, false );
if ( finishedProjects.containsAll( upstreamProjects ) )
{
result.add( dependentProject );
}
}
return result;
}
/**
* @return set of projects that have yet to be processed successfully by the build.
*/
public Set<MavenProject> getUnfinishedProjects()
{
Set<MavenProject> unfinished = new HashSet<MavenProject>( projectBuilds.getProjects() );
unfinished.remove( finishedProjects );
return unfinished;
}
/**
* @return set of projects that have been successfully processed by the build.
*/
protected Set<MavenProject> getFinishedProjects()
{
return finishedProjects;
}
protected ProjectBuildList getProjectBuilds()
{
return projectBuilds;
}
/**
* For the given {@link MavenProject} {@code p}, return all of {@code p}'s dependencies.
*
* @param p
* @return List of prerequisite projects
*/
protected List<MavenProject> getDependencies( MavenProject p )
{
return projectDependencyGraph.getUpstreamProjects( p, false );
}
/**
* For the given {@link MavenProject} {@code p} return {@code p}'s uncompleted dependencies.
*
* @param p
* @return List of uncompleted prerequisite projects
*/
public List<MavenProject> getActiveDependencies( MavenProject p )
{
List<MavenProject> activeDependencies = projectDependencyGraph.getUpstreamProjects( p, false );
activeDependencies.removeAll( finishedProjects );
return activeDependencies;
}
}
|
