From fa1eaf9a2c94b50547cfad863c68f11b1f8c4f0e Mon Sep 17 00:00:00 2001
From: Jason van Zyl <jvanzyl@apache.org>
Date: Thu, 29 Sep 2005 02:47:24 +0000
Subject: [PATCH] o provide the phases in the lifecycle by extracting the
 component descriptor   and pull them out of the configuration.

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@292380 13f79535-47bb-0310-9956-ffa450edef68
---
 .../apache/maven/embedder/MavenEmbedder.java  | 61 ++++++++++---------
 .../maven/embedder/MavenEmbedderTest.java     | 16 +++++
 2 files changed, 48 insertions(+), 29 deletions(-)

diff --git a/maven-embedder/src/main/java/org/apache/maven/embedder/MavenEmbedder.java b/maven-embedder/src/main/java/org/apache/maven/embedder/MavenEmbedder.java
index 1448b41cac..067eb7a3f4 100644
--- a/maven-embedder/src/main/java/org/apache/maven/embedder/MavenEmbedder.java
+++ b/maven-embedder/src/main/java/org/apache/maven/embedder/MavenEmbedder.java
@@ -46,8 +46,10 @@ import org.codehaus.classworlds.ClassWorld;
 import org.codehaus.classworlds.DuplicateRealmException;
 import org.codehaus.plexus.PlexusContainerException;
 import org.codehaus.plexus.configuration.PlexusConfigurationException;
+import org.codehaus.plexus.configuration.PlexusConfiguration;
 import org.codehaus.plexus.component.repository.exception.ComponentLifecycleException;
 import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
+import org.codehaus.plexus.component.repository.ComponentDescriptor;
 import org.codehaus.plexus.embed.Embedder;
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
 import org.codehaus.plexus.util.dag.CycleDetectedException;
@@ -127,8 +129,6 @@ public class MavenEmbedder
 
     private String globalChecksumPolicy;
 
-    private File mavenHome;
-
     // ----------------------------------------------------------------------
     // Accessors
     // ----------------------------------------------------------------------
@@ -228,16 +228,6 @@ public class MavenEmbedder
         return localRepositoryDirectory;
     }
 
-    public File getMavenHome()
-    {
-        return mavenHome;
-    }
-
-    public void setMavenHome( File mavenHome )
-    {
-        this.mavenHome = mavenHome;
-    }
-
     // ----------------------------------------------------------------------
     // Embedder Client Contract
     // ----------------------------------------------------------------------
@@ -379,6 +369,36 @@ public class MavenEmbedder
         }
     }
 
+    // ----------------------------------------------------------------------
+    // Lifecycle information
+    // ----------------------------------------------------------------------
+
+    public List getLifecyclePhases()
+        throws MavenEmbedderException
+    {
+        List phases = new ArrayList();
+
+        ComponentDescriptor descriptor = embedder.getContainer().getComponentDescriptor( LifecycleExecutor.ROLE );
+
+        PlexusConfiguration configuration = descriptor.getConfiguration();
+
+        PlexusConfiguration[] phasesConfigurations = configuration.getChild( "phases" ).getChildren( "phase" );
+
+        try
+        {
+            for ( int i = 0; i < phasesConfigurations.length; i++ )
+            {
+                phases.add( phasesConfigurations[i].getValue() );
+            }
+        }
+        catch ( PlexusConfigurationException e )
+        {
+             throw new MavenEmbedderException( "Cannot retrieve default lifecycle phasesConfigurations.", e );
+        }
+
+        return phases;
+    }
+
     // ----------------------------------------------------------------------
     // Internal utility code
     // ----------------------------------------------------------------------
@@ -475,23 +495,6 @@ public class MavenEmbedder
         // the plugin registry builder.
         // ----------------------------------------------------------------------
 
-        // TODO: create a maven.home discovery method.
-
-        if ( mavenHome == null )
-        {
-            mavenHome = new File( userHome, "m2" );
-
-            if ( !mavenHome.exists() )
-            {
-                if ( !mavenHome.mkdirs() )
-                {
-                    throw new IllegalStateException( "A maven home directory does not exist and cannot be created." );
-                }
-            }
-
-            System.setProperty( "maven.home", mavenHome.getAbsolutePath() );
-        }
-
         if ( classLoader == null )
         {
             throw new IllegalStateException( "A classloader must be specified using setClassLoader(ClassLoader)." );
diff --git a/maven-embedder/src/test/java/org/apache/maven/embedder/MavenEmbedderTest.java b/maven-embedder/src/test/java/org/apache/maven/embedder/MavenEmbedderTest.java
index e0bbe932f1..3a1d47e6cc 100644
--- a/maven-embedder/src/test/java/org/apache/maven/embedder/MavenEmbedderTest.java
+++ b/maven-embedder/src/test/java/org/apache/maven/embedder/MavenEmbedderTest.java
@@ -97,6 +97,22 @@ public class MavenEmbedderTest
         assertEquals( "org.apache.maven.plugins", pd.getGroupId() );
     }
 
+    // ----------------------------------------------------------------------
+    // Lifecycle phases
+    // ----------------------------------------------------------------------
+
+    public void testRetrievingLifecyclePhases()
+        throws Exception
+    {
+        List phases = maven.getLifecyclePhases();
+
+        assertEquals( "validate", (String) phases.get( 0 ) );
+
+        assertEquals( "initialize", (String) phases.get( 1 ) );
+
+        assertEquals( "generate-sources", (String) phases.get( 2 ) );
+    }
+
     // ----------------------------------------------------------------------
     //
     // ----------------------------------------------------------------------