most basic of field based plugins

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@163627 13f79535-47bb-0310-9956-ffa450edef68

maven-core/src/main/java/org/apache/maven/plugin/DefaultPluginManager.java

@@ -56,6 +56,7 @@
 import org.codehaus.plexus.util.StringUtils;
 import org.codehaus.plexus.util.dag.CycleDetectedException;
 
+import java.lang.reflect.Field;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -382,7 +383,7 @@ public void executeMojo( MavenSession session, String goalName )
 
             if ( plugin.supportsNewMojoParadigm() )
             {
-                // TODO: construct request
+                populateParameters( plugin, mojoDescriptor, session );
             }
             else
             {
@@ -468,6 +469,52 @@ private void releaseComponents( MojoDescriptor goal, PluginExecutionRequest requ
     // Mojo Parameter Handling
     // ----------------------------------------------------------------------
 
+    private void populateParameters( Plugin plugin, MojoDescriptor mojoDescriptor, MavenSession session )
+        throws PluginConfigurationException
+    {
+        // TODO: merge eventually, just to avoid reuse
+        // TODO: probably want to use the plexus component configurator... then do the additional processing in
+        //  createParameters afterwards. Not sure how we might find files that are nested in other objects... perhaps
+        //  we add a "needs translation" to the mojo so such types can be translated (implementing some interface) and
+        //  address their own file objects
+        Map values = createParameters( mojoDescriptor, session );
+
+        List parameters = mojoDescriptor.getParameters();
+
+        for ( Iterator i = parameters.iterator(); i.hasNext(); )
+        {
+            Parameter param = (Parameter) i.next();
+            String name = param.getName();
+            Object value = values.get( name );
+
+            Class clazz = plugin.getClass();
+            try
+            {
+                Field f = clazz.getDeclaredField( name );
+                boolean accessible = f.isAccessible();
+                if ( !accessible )
+                {
+                    f.setAccessible( true );
+                }
+
+                f.set( plugin, value );
+
+                if ( !accessible )
+                {
+                    f.setAccessible( false );
+                }
+            }
+            catch ( NoSuchFieldException e )
+            {
+                throw new PluginConfigurationException( "Unable to set field '" + name + "' on '" + clazz + "'" );
+            }
+            catch ( IllegalAccessException e )
+            {
+                throw new PluginConfigurationException( "Unable to set field '" + name + "' on '" + clazz + "'" );
+            }
+        }
+    }
+
     public Map createParameters( MojoDescriptor goal, MavenSession session )
         throws PluginConfigurationException
     {
@@ -664,12 +711,12 @@ private void resolveTransitiveDependencies( MavenSession context, ArtifactResolv
     private void downloadDependencies( MavenSession context, ArtifactResolver artifactResolver )
         throws ArtifactResolutionException
     {
-            for ( Iterator it = context.getProject().getArtifacts().iterator(); it.hasNext(); )
-            {
-                Artifact artifact = (Artifact) it.next();
+        for ( Iterator it = context.getProject().getArtifacts().iterator(); it.hasNext(); )
+        {
+            Artifact artifact = (Artifact) it.next();
 
-                artifactResolver.resolve( artifact, context.getRemoteRepositories(), context.getLocalRepository() );
-            }
+            artifactResolver.resolve( artifact, context.getRemoteRepositories(), context.getLocalRepository() );
+        }
     }
 
 }

maven-plugin/src/main/java/org/apache/maven/plugin/AbstractPlugin.java

@@ -55,8 +55,12 @@ public void execute( PluginExecutionRequest request )
     /**
      * @deprecated
      */
-    public abstract void execute( PluginExecutionRequest request, PluginExecutionResponse response )
-        throws Exception;
+    public void execute( PluginExecutionRequest request, PluginExecutionResponse response )
+        throws Exception
+    {
+        throw new UnsupportedOperationException(
+            "If you are using the old technioque, you must override execute(req,resp)" );
+    }
 
     public void setLog( Log log )
     {
@@ -80,7 +84,9 @@ public void execute()
         throws PluginExecutionException
     {
         if ( supportsNewMojoParadigm() )
+        {
             throw new PluginExecutionException( "You must override execute() if you implement the new paradigm" );
+        }
     }
 
     public boolean supportsNewMojoParadigm()

maven-plugins/maven-clean-plugin/src/main/java/org/apache/maven/plugin/clean/CleanPlugin.java

@@ -17,26 +17,21 @@
  */
 
 import org.apache.maven.plugin.AbstractPlugin;
-import org.apache.maven.plugin.PluginExecutionRequest;
-import org.apache.maven.plugin.PluginExecutionResponse;
+import org.apache.maven.plugin.PluginExecutionException;
 
 import java.io.File;
 
 /**
- * @goal clean
- *
- * @description Goal which cleans the build
- *
- * @parameter
- *  name="outputDirectory"
- *  type="String"
- *  required="true"
- *  validator=""
- *  expression="#project.build.directory"
- *  description=""
- *
  * @author <a href="mailto:evenisse@maven.org">Emmanuel Venisse</a>
  * @version $Id$
+ * @goal clean
+ * @description Goal which cleans the build
+ * @parameter name="outputDirectory"
+ * type="String"
+ * required="true"
+ * validator=""
+ * expression="#project.build.directory"
+ * description=""
  */
 public class CleanPlugin
     extends AbstractPlugin
@@ -45,34 +40,33 @@ public class CleanPlugin
 
     private String outputDirectory;
 
-    private boolean failOnError;
-
-    public void execute( PluginExecutionRequest request, PluginExecutionResponse response )
-        throws Exception
+    // TODO: not in the descriptor previously
+//    private boolean failOnError;
+    public boolean supportsNewMojoParadigm()
     {
-        try
+        return true;
+    }
+
+    public void execute()
+        throws PluginExecutionException
+    {
+        if ( outputDirectory != null )
         {
-            outputDirectory = (String) request.getParameter( "outputDirectory" );
+            File dir = new File( outputDirectory );
 
-            failOnError = Boolean.valueOf( (String) request.getParameter( "failedOnError" ) ).booleanValue();
-            
-            if ( outputDirectory != null )
+            if ( dir.exists() && dir.isDirectory() )
             {
-                File dir = new File( outputDirectory );
-
-                if ( dir.exists() && dir.isDirectory() )
+                getLog().info( "Deleting directory " + dir.getAbsolutePath() );
+                try
                 {
-                    getLog().info( "Deleting directory " + dir.getAbsolutePath() );
                     removeDir( dir );
                 }
+                catch ( Exception e )
+                {
+                    throw new PluginExecutionException( "Unable to delete directory", e );
+                }
             }
         }
-        finally
-        {
-            // clean up state.
-            failOnError = false;
-            outputDirectory = null;
-        }
     }
 
     /**
@@ -106,7 +100,8 @@ private boolean delete( File f )
      *
      * @param d the directory to delete
      */
-    protected void removeDir( File d ) throws Exception
+    protected void removeDir( File d )
+        throws Exception
     {
         String[] list = d.list();
         if ( list == null )
@@ -123,35 +118,34 @@ protected void removeDir( File d ) throws Exception
             }
             else
             {
-                //log("Deleting " + f.getAbsolutePath());
                 if ( !delete( f ) )
                 {
-                    String message = "Unable to delete file "
-                        + f.getAbsolutePath();
-                    if ( failOnError )
-                    {
-                        throw new Exception( message );
-                    }
-                    else
-                    {
+                    String message = "Unable to delete file " + f.getAbsolutePath();
+// TODO:...
+//                    if ( failOnError )
+//                    {
+//                        throw new Exception( message );
+//                    }
+//                    else
+//                    {
                         getLog().info( message );
-                    }
+//                    }
                 }
             }
         }
-        //log("Deleting directory " + d.getAbsolutePath());
+
         if ( !delete( d ) )
         {
-            String message = "Unable to delete directory "
-                + d.getAbsolutePath();
-            if ( failOnError )
-            {
-                throw new Exception( message );
-            }
-            else
-            {
+            String message = "Unable to delete directory " + d.getAbsolutePath();
+// TODO:...
+//            if ( failOnError )
+//            {
+//                throw new Exception( message );
+//            }
+//            else
+//            {
                 getLog().info( message );
-            }
+//            }
         }
     }