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Posted to commits@maven.apache.org by ni...@apache.org on 2009/05/18 15:01:47 UTC

svn commit: r775932 - in /maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin: classloader/ProjectClassLoader.java classloader/ProjectClassLoaderUtil.java cli/JavaCommandBuilder.java

Author: nicolas
Date: Mon May 18 13:01:46 2009
New Revision: 775932

URL: http://svn.apache.org/viewvc?rev=775932&view=rev
Log:
ProjectClassLoader refactored as utility class

Added:
    maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/classloader/ProjectClassLoaderUtil.java
Removed:
    maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/classloader/ProjectClassLoader.java
Modified:
    maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/cli/JavaCommandBuilder.java

Added: maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/classloader/ProjectClassLoaderUtil.java
URL: http://svn.apache.org/viewvc/maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/classloader/ProjectClassLoaderUtil.java?rev=775932&view=auto
==============================================================================
--- maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/classloader/ProjectClassLoaderUtil.java (added)
+++ maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/classloader/ProjectClassLoaderUtil.java Mon May 18 13:01:46 2009
@@ -0,0 +1,202 @@
+package org.apache.maven.shared.plugin.classloader;
+
+/*
+ * 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 java.io.File;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.maven.artifact.Artifact;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.project.MavenProject;
+
+/**
+ * Helper class to build a ClassLoader from MavenProject artifacts and dependencies.
+ * 
+ * @author <a href="mailto:nicolas@apache.org">Nicolas De Loof</a>
+ */
+public final class ProjectClassLoaderUtil
+{
+    private ProjectClassLoaderUtil()
+    {
+        // utility class
+    }
+
+    /**
+     * Create a ClassLoader for the project with the specified scope, optionnaly including sources
+     * 
+     * @throws MalformedURLException
+     */
+    public static ClassLoader buildProjectClassLoader( MavenProject project, String scope, boolean includeSources )
+        throws MojoExecutionException
+    {
+        List urls = doBuildProjectClasspath( project, scope, includeSources );
+        URL[] classpath = (URL[]) urls.toArray( new URL[urls.size()] );
+        return new URLClassLoader( classpath );
+    }
+
+    /**
+     * Create a ClassLoader for the project with the specified scope, optionnaly including sources, and include the
+     * specified artifacts (typically from <code>${plugin.artifacts}</code>)
+     * 
+     * @throws MalformedURLException
+     */
+    public static ClassLoader buildProjectClassLoaderWithArtifacts( MavenProject project, String scope,
+                                                                    boolean includeSources,
+                                                                    List additionalClassPathArtifacts )
+        throws MojoExecutionException
+    {
+        List urls = doBuildProjectClasspath( project, scope, includeSources );
+        for ( Iterator iterator = additionalClassPathArtifacts.iterator(); iterator.hasNext(); )
+        {
+            Artifact artifact = (Artifact) iterator.next();
+            try
+            {
+                urls.add( artifact.getFile().toURI().toURL() );
+            }
+            catch ( MalformedURLException e )
+            {
+                throw new MojoExecutionException( "Failed to resolve artifact " + artifact + " as URL", e );
+            }
+        }
+        URL[] classpath = (URL[]) urls.toArray( new URL[urls.size()] );
+        return new URLClassLoader( classpath );
+    }
+
+    /**
+     * Create a ClassLoader for the project with the specified scope, optionnaly including sources, and include the
+     * specified classpath elements.
+     * 
+     * @throws MalformedURLException
+     */
+    public static ClassLoader buildProjectClassLoaderWithElements( MavenProject project, String scope,
+                                                                   boolean includeSources,
+                                                                   List additionalClassPathElements )
+        throws MojoExecutionException
+    {
+        List urls = doBuildProjectClasspath( project, scope, includeSources );
+        for ( Iterator iterator = additionalClassPathElements.iterator(); iterator.hasNext(); )
+        {
+            String path = (String) iterator.next();
+            try
+            {
+                urls.add( new File( path ).toURI().toURL() );
+            }
+            catch ( MalformedURLException e )
+            {
+                throw new MojoExecutionException( "Failed to resolve path " + path + " as URL", e );
+            }
+        }
+        URL[] classpath = (URL[]) urls.toArray( new URL[urls.size()] );
+        return new URLClassLoader( classpath );
+    }
+
+    private static List doBuildProjectClasspath( MavenProject project, String scope, boolean includeSources )
+        throws MojoExecutionException
+    {
+        List urls;
+        try
+        {
+            urls = buildProjectClasspath( project, scope, includeSources );
+        }
+        catch ( MalformedURLException e )
+        {
+            throw new MojoExecutionException( "Failed to resolve project dependencies as URL", e );
+        }
+        return urls;
+    }
+
+    /**
+     * @return Lis<URL> equivalent to the project Classpath
+     * @throws MalformedURLException
+     */
+    private static List buildProjectClasspath( MavenProject project, String scope, boolean includeSources )
+        throws MalformedURLException
+    {
+        List urls = new ArrayList();
+
+        File outputDirectory = new File( project.getBuild().getOutputDirectory() );
+        urls.add( outputDirectory.toURI().toURL() );
+        if ( includeSources )
+        {
+            List sourceRoots = project.getCompileSourceRoots();
+            for ( Iterator iterator = sourceRoots.iterator(); iterator.hasNext(); )
+            {
+                String sourceRoot = (String) iterator.next();
+                urls.add( new File( sourceRoot ).toURI().toURL() );
+            }
+        }
+
+        if ( scope.equals( Artifact.SCOPE_TEST ) )
+        {
+            File testOutputDirectory = new File( project.getBuild().getTestOutputDirectory() );
+            urls.add( testOutputDirectory.toURI().toURL() );
+            if ( includeSources )
+            {
+                List testSourceRoots = project.getTestCompileSourceRoots();
+                for ( Iterator iterator = testSourceRoots.iterator(); iterator.hasNext(); )
+                {
+                    String testSourceRoot = (String) iterator.next();
+                    urls.add( new File( testSourceRoot ).toURI().toURL() );
+                }
+            }
+        }
+
+        List artifacts = getArtifactsByScope( project, scope );
+        for ( Iterator iterator = artifacts.iterator(); iterator.hasNext(); )
+        {
+            Artifact artifact = (Artifact) iterator.next();
+            if ( !artifact.isResolved() )
+            {
+                throw new IllegalStateException( "Artifact is not resolved. \n"
+                    + "Plugin must declare @requiresDependencyResolution " + scope );
+            }
+            urls.add( artifact.getFile().toURI().toURL() );
+        }
+
+        return urls;
+    }
+
+    public static List getArtifactsByScope( MavenProject project, String scope )
+    {
+        List artifacts;
+        if ( scope.equals( Artifact.SCOPE_COMPILE ) )
+        {
+            artifacts = project.getCompileArtifacts();
+        }
+        else if ( scope.equals( Artifact.SCOPE_RUNTIME ) )
+        {
+            artifacts = project.getRuntimeArtifacts();
+        }
+        else if ( scope.equals( Artifact.SCOPE_TEST ) )
+        {
+            artifacts = project.getTestArtifacts();
+        }
+        else
+        {
+            throw new IllegalArgumentException( "Usuported scope" + scope );
+        }
+        return artifacts;
+    }
+}

Modified: maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/cli/JavaCommandBuilder.java
URL: http://svn.apache.org/viewvc/maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/cli/JavaCommandBuilder.java?rev=775932&r1=775931&r2=775932&view=diff
==============================================================================
--- maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/cli/JavaCommandBuilder.java (original)
+++ maven/sandbox/trunk/shared/maven-plugin-helper/src/main/java/org/apache/maven/shared/plugin/cli/JavaCommandBuilder.java Mon May 18 13:01:46 2009
@@ -12,7 +12,7 @@
 import org.apache.maven.plugin.MojoExecutionException;
 import org.apache.maven.plugin.logging.Log;
 import org.apache.maven.project.MavenProject;
-import org.apache.maven.shared.plugin.classloader.ProjectClassLoader;
+import org.apache.maven.shared.plugin.classloader.ProjectClassLoaderUtil;
 import org.codehaus.plexus.util.Os;
 import org.codehaus.plexus.util.StringUtils;
 import org.codehaus.plexus.util.cli.CommandLineException;
@@ -115,7 +115,7 @@
             }
         }
 
-        List artifacts = ProjectClassLoader.getArtifactsByScope( project, scope );
+        List artifacts = ProjectClassLoaderUtil.getArtifactsByScope( project, scope );
         for ( Iterator iterator = artifacts.iterator(); iterator.hasNext(); )
         {
             Artifact artifact = (Artifact) iterator.next();