View Javadoc
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.toolchain.building;
20  
21  import javax.inject.Inject;
22  import javax.inject.Named;
23  import javax.inject.Singleton;
24  
25  import java.io.IOException;
26  import java.io.InputStream;
27  import java.lang.reflect.Method;
28  import java.nio.file.Path;
29  import java.util.HashMap;
30  import java.util.List;
31  import java.util.Map;
32  import java.util.Properties;
33  
34  import org.apache.maven.api.Session;
35  import org.apache.maven.api.services.BuilderProblem;
36  import org.apache.maven.api.services.Source;
37  import org.apache.maven.api.services.ToolchainsBuilderException;
38  import org.apache.maven.api.services.ToolchainsBuilderRequest;
39  import org.apache.maven.api.services.ToolchainsBuilderResult;
40  import org.apache.maven.api.services.xml.ToolchainsXmlFactory;
41  import org.apache.maven.building.FileSource;
42  import org.apache.maven.building.Problem;
43  import org.apache.maven.building.ProblemCollector;
44  import org.apache.maven.building.ProblemCollectorFactory;
45  import org.apache.maven.toolchain.model.PersistedToolchains;
46  import org.codehaus.plexus.interpolation.os.OperatingSystemUtils;
47  
48  /**
49   *
50   * @since 3.3.0
51   */
52  @Named
53  @Singleton
54  public class DefaultToolchainsBuilder implements ToolchainsBuilder {
55      private final org.apache.maven.api.services.ToolchainsBuilder builder;
56      private final ToolchainsXmlFactory toolchainsXmlFactory;
57  
58      @Inject
59      public DefaultToolchainsBuilder(
60              org.apache.maven.api.services.ToolchainsBuilder builder, ToolchainsXmlFactory toolchainsXmlFactory) {
61          this.builder = builder;
62          this.toolchainsXmlFactory = toolchainsXmlFactory;
63      }
64  
65      @Override
66      public ToolchainsBuildingResult build(ToolchainsBuildingRequest request) throws ToolchainsBuildingException {
67          try {
68              ToolchainsBuilderResult result = builder.build(ToolchainsBuilderRequest.builder()
69                      .session((Session) java.lang.reflect.Proxy.newProxyInstance(
70                              Session.class.getClassLoader(),
71                              new Class[] {Session.class},
72                              (Object proxy, Method method, Object[] args) -> {
73                                  if ("getSystemProperties".equals(method.getName())) {
74                                      Map<String, String> properties = new HashMap<>();
75                                      Properties env = OperatingSystemUtils.getSystemEnvVars();
76                                      env.stringPropertyNames()
77                                              .forEach(k -> properties.put("env." + k, env.getProperty(k)));
78                                      return properties;
79                                  } else if ("getUserProperties".equals(method.getName())) {
80                                      return Map.of();
81                                  } else if ("getService".equals(method.getName())) {
82                                      if (args[0] == ToolchainsXmlFactory.class) {
83                                          return toolchainsXmlFactory;
84                                      }
85                                  }
86                                  return null;
87                              }))
88                      .installationToolchainsSource(convert(request.getGlobalToolchainsSource()))
89                      .userToolchainsSource(convert(request.getUserToolchainsSource()))
90                      .build());
91  
92              return new DefaultToolchainsBuildingResult(
93                      new PersistedToolchains(result.getEffectiveToolchains()), convert(result.getProblems()));
94          } catch (ToolchainsBuilderException e) {
95              throw new ToolchainsBuildingException(convert(e.getProblems()));
96          }
97      }
98  
99      private Source convert(org.apache.maven.building.Source source) {
100         if (source instanceof FileSource fs) {
101             return Source.fromPath(fs.getPath());
102         } else if (source != null) {
103             return new Source() {
104                 @Override
105                 public Path getPath() {
106                     return null;
107                 }
108 
109                 @Override
110                 public InputStream openStream() throws IOException {
111                     return source.getInputStream();
112                 }
113 
114                 @Override
115                 public String getLocation() {
116                     return source.getLocation();
117                 }
118 
119                 @Override
120                 public Source resolve(String relative) {
121                     return null;
122                 }
123             };
124         } else {
125             return null;
126         }
127     }
128 
129     private List<Problem> convert(List<BuilderProblem> problems) {
130         ProblemCollector collector = ProblemCollectorFactory.newInstance(null);
131         problems.forEach(p -> collector.add(
132                 Problem.Severity.valueOf(p.getSeverity().name()),
133                 p.getMessage(),
134                 p.getLineNumber(),
135                 p.getColumnNumber(),
136                 p.getException()));
137         return collector.getProblems();
138     }
139 }