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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.plugin.mojo;
import com.google.common.base.Preconditions;
import com.yahoo.container.plugin.bundle.AnalyzeBundle;
import com.yahoo.container.plugin.osgi.ProjectBundleClassPaths;
import com.yahoo.container.plugin.osgi.ProjectBundleClassPaths.BundleClasspathMapping;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.plugins.annotations.ResolutionScope;
import org.apache.maven.project.MavenProject;
import java.io.File;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/**
* Generates mapping from Bundle-SymbolicName to classpath elements, e.g myBundle -> [.m2/repository/com/mylib/Mylib.jar,
* myBundleProject/target/classes] The mapping in stored in a json file.
*
* @author Tony Vaagenes
* @author ollivir
*/
@Mojo(name = "generate-bundle-classpath-mappings", requiresDependencyResolution = ResolutionScope.COMPILE_PLUS_RUNTIME, threadSafe = true)
public class GenerateBundleClassPathMappingsMojo extends AbstractMojo {
@Parameter(defaultValue = "${project}")
private MavenProject project = null;
//TODO: Combine with com.yahoo.container.plugin.mojo.GenerateOsgiManifestMojo.bundleSymbolicName
@Parameter(alias = "Bundle-SymbolicName", defaultValue = "${project.artifactId}")
private String bundleSymbolicName = null;
/* Sample output -- target/test-classes/bundle-plugin.bundle-classpath-mappings.json
{
"mainBundle": {
"bundleSymbolicName": "bundle-plugin-test",
"classPathElements": [
"/Users/tonyv/Repos/vespa/bundle-plugin-test/target/classes",
"/Users/tonyv/.m2/repository/com/yahoo/vespa/jrt/7-SNAPSHOT/jrt-7-SNAPSHOT.jar",
"/Users/tonyv/.m2/repository/com/yahoo/vespa/annotations/7-SNAPSHOT/annotations-7-SNAPSHOT.jar"
]
},
"providedDependencies": [
{
"bundleSymbolicName": "jrt",
"classPathElements": [
"/Users/tonyv/.m2/repository/com/yahoo/vespa/jrt/7-SNAPSHOT/jrt-7-SNAPSHOT.jar"
]
}
]
}
*/
@Override
public void execute() throws MojoExecutionException {
Preconditions.checkNotNull(bundleSymbolicName);
Artifacts.ArtifactSet artifacts = Artifacts.getArtifacts(project);
List<Artifact> embeddedArtifacts = artifacts.getJarArtifactsToInclude();
List<Artifact> providedJarArtifacts = artifacts.getJarArtifactsProvided();
List<File> embeddedArtifactsFiles = embeddedArtifacts.stream().map(Artifact::getFile).collect(Collectors.toList());
List<String> classPathElements = Stream.concat(Stream.of(outputDirectory()), embeddedArtifactsFiles.stream())
.map(File::getAbsolutePath).collect(Collectors.toList());
ProjectBundleClassPaths classPathMappings = new ProjectBundleClassPaths(
new BundleClasspathMapping(bundleSymbolicName, classPathElements),
providedJarArtifacts.stream().map(f -> createDependencyClasspathMapping(f)).filter(Optional::isPresent).map(Optional::get)
.collect(Collectors.toList()));
try {
ProjectBundleClassPaths.save(testOutputPath().resolve(ProjectBundleClassPaths.CLASSPATH_MAPPINGS_FILENAME), classPathMappings);
} catch (IOException e) {
throw new MojoExecutionException("Error saving to file " + testOutputPath(), e);
}
}
private File outputDirectory() {
return new File(project.getBuild().getOutputDirectory());
}
private Path testOutputPath() {
return Paths.get(project.getBuild().getTestOutputDirectory());
}
/* TODO:
* 1) add the dependencies of the artifact in the future(i.e. dependencies of dependencies)
* or
* 2) obtain bundles with embedded dependencies from the maven repository,
* and support loading classes from the nested jar files in those bundles.
*/
Optional<BundleClasspathMapping> createDependencyClasspathMapping(Artifact artifact) {
return bundleSymbolicNameForArtifact(artifact)
.map(name -> new BundleClasspathMapping(name, Arrays.asList(artifact.getFile().getAbsolutePath())));
}
private static Optional<String> bundleSymbolicNameForArtifact(Artifact artifact) {
if (artifact.getFile().getName().endsWith(".jar")) {
return AnalyzeBundle.bundleSymbolicName(artifact.getFile());
} else {
// Not the best heuristic. The other alternatives are parsing the pom file or
// storing information in target/classes when building the provided bundles.
return Optional.of(artifact.getArtifactId());
}
}
}
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