cvs commit: jakarta-alexandria/proposal/maven/src/java/org/apache/maven DependencyDescriptor.java

[jv...@apache.org]

jvanzyl     01/09/02 11:08:05

  Added:       proposal/maven/src/java/org/apache/maven
                        DependencyDescriptor.java
  Log:
  - texen task to generate a dependency descriptor for a project/module
  
  Revision  Changes    Path
  1.1                  jakarta-alexandria/proposal/maven/src/java/org/apache/maven/DependencyDescriptor.java
  
  Index: DependencyDescriptor.java
  ===================================================================
  package org.apache.maven;
  
  import java.io.BufferedWriter;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.OutputStreamWriter;
  import java.io.Writer;
  import org.apache.tools.ant.Task;
  import org.apache.tools.ant.BuildException;
  import org.apache.maven.bean.Profile;
  import org.apache.maven.bean.Workspace;
  import org.apache.maven.digester.WorkspaceDigester;
  import org.apache.velocity.context.Context;
  import org.apache.velocity.texen.ant.TexenTask;
  import org.apache.log4j.Category;
  import org.apache.log4j.PropertyConfigurator;
  
  /**
   * Task for controlling a multi-project build. The logic in
   * this task will probably be placed in another core file and
   * this task will be a wrapper around it. So that the build logic
   * can be used in many interfaces: ant, command line, servlet ...
   *
   * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a>
   * @version $Id: DependencyDescriptor.java,v 1.1 2001/09/02 18:08:05 jvanzyl Exp $
   */
  public class DependencyDescriptor
      extends TexenTask
  {
      /**
       * Workspace descriptor used to control a build session in
       * in Maven.
       */
      private File workspace;
      
      /**
       * Log4j category used for logging.
       */
      private Category category = Category.getInstance(getClass().getName());
      
      /**
       * Set the workspace that will be used with this Maven
       * build.
       *
       * @param File workspace descriptor
       */
      public void setWorkspace(File workspace)
      {
          this.workspace = workspace;
      }        
      
      /**
       * Get the workspace descriptor being used with
       * this Maven build.
       *
       * @return File workspace descriptor
       */
      public File getWorkspace()
      {
          return workspace;
      }        
  
      protected void populateInitialContext(Context context)
          throws Exception
      {
          super.populateInitialContext(context);
          
          // Setup log4j with a standard properties file.
          PropertyConfigurator.configure("log4j.properties");
          checkPrerequisites();
      
          category.debug("Workspace file: " + workspace);
          
          try
          {
              // Everything starts with a workspace.
              WorkspaceDigester workspaceDigester = new WorkspaceDigester();
              Workspace w = (Workspace) workspaceDigester.parse(workspace);
              
              category.debug("Descriptor dir: " + w.getDescriptorDir());
              category.debug("Work dir: " + w.getWorkDir());
              
              w.process();
              context.put("workspace", w);
          }
          catch(Exception e)
          {
              throw new Exception("Cannot process workspace!");
          }
      }
  
      /**
       * Make sure we have everything necessary for
       * the maven build.
       */
      private void checkPrerequisites()
          throws Exception
      {
          // Make sure a workspace descriptor has been specified.
          if (workspace == null)
          {
              throw new Exception("workspace attribute must be set!");            
          }
      }
  }
  
  
  

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