cvs commit: jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/tools/infobuilder ComponentInfoConverter.java

[do...@apache.org]

donaldp     2002/09/14 19:00:18

  Added:       src/java/org/apache/avalon/phoenix/tools/infobuilder
                        ComponentInfoConverter.java
  Log:
  Add the start of a ComponentInfo --> BlockInfo converter. WIll enable interoperability and backwards compatible support (for listeners etc).
  
  Revision  Changes    Path
  1.1                  jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/tools/infobuilder/ComponentInfoConverter.java
  
  Index: ComponentInfoConverter.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included  with this distribution in
   * the LICENSE.txt file.
   */
  package org.apache.avalon.phoenix.tools.infobuilder;
  
  import java.util.ArrayList;
  import org.apache.avalon.framework.Version;
  import org.apache.avalon.framework.info.ComponentDescriptor;
  import org.apache.avalon.framework.info.ComponentInfo;
  import org.apache.avalon.framework.info.FeatureDescriptor;
  import org.apache.avalon.framework.info.Tag;
  import org.apache.avalon.phoenix.metainfo.BlockDescriptor;
  import org.apache.avalon.phoenix.metainfo.BlockInfo;
  import org.apache.avalon.phoenix.metainfo.DependencyDescriptor;
  import org.apache.avalon.phoenix.metainfo.ServiceDescriptor;
  
  /**
   * Convert a {@link ComponentInfo} into a {@link BlockInfo}.
   *
   * @author <a href="mailto:peter@apache.org">Peter Donald</a>
   * @version $Revision: 1.1 $ $Date: 2002/09/15 02:00:18 $
   */
  public class ComponentInfoConverter
  {
      private ComponentInfoConverter()
      {
      }
  
      public static BlockInfo toBlockInfo( final ComponentInfo component )
      {
          final BlockDescriptor descriptor =
              toBlockDescriptor( component.getComponentDescriptor() );
          final ServiceDescriptor[] services =
              toPhoenixServices( component.getServices() );
          final ServiceDescriptor[] mxServices =
              getMXServices( component.getServices() );
          final DependencyDescriptor[] dependencys =
              toPhoenixDependencys( component.getDependencies() );
  
          return new BlockInfo( descriptor,
                                services,
                                mxServices,
                                dependencys );
  
      }
  
      private static ServiceDescriptor[] getMXServices(
          final org.apache.avalon.framework.info.ServiceDescriptor[] services )
      {
          final ArrayList serviceSet = new ArrayList();
          for( int i = 0; i < services.length; i++ )
          {
              final Tag tag = services[ i ].getTag( "mx" );
              if( null != tag )
              {
                  serviceSet.add( toPhoenixService( services[ i ] ) );
              }
          }
          return (ServiceDescriptor[])serviceSet.toArray( new ServiceDescriptor[ serviceSet.size() ] );
      }
  
      private static ServiceDescriptor[] toPhoenixServices(
          final org.apache.avalon.framework.info.ServiceDescriptor[] services )
      {
          final ArrayList serviceSet = new ArrayList();
          for( int i = 0; i < services.length; i++ )
          {
              serviceSet.add( toPhoenixService( services[ i ] ) );
          }
          return (ServiceDescriptor[])serviceSet.toArray( new ServiceDescriptor[ serviceSet.size() ] );
      }
  
      private static ServiceDescriptor toPhoenixService(
          final org.apache.avalon.framework.info.ServiceDescriptor service )
      {
          final Version version = toVersion( service );
          final String classname = service.getImplementationKey();
          return new ServiceDescriptor( classname, version );
      }
  
      private static DependencyDescriptor[] toPhoenixDependencys(
          final org.apache.avalon.framework.info.DependencyDescriptor[] dependencies )
      {
          final ArrayList depends = new ArrayList();
          for( int i = 0; i < dependencies.length; i++ )
          {
              depends.add( toPhoenixDependency( dependencies[ i ] ) );
          }
          return (DependencyDescriptor[])depends.toArray( new DependencyDescriptor[ depends.size() ] );
      }
  
      private static DependencyDescriptor toPhoenixDependency(
          final org.apache.avalon.framework.info.DependencyDescriptor dependency )
      {
          final Version version = toVersion( dependency );
          final ServiceDescriptor service =
              new ServiceDescriptor( dependency.getService(), version );
          return new DependencyDescriptor( dependency.getKey(), service );
      }
  
      private static BlockDescriptor toBlockDescriptor( final ComponentDescriptor component )
      {
          final Version version = toVersion( component );
          String schemaType = null;
          final Tag tag = component.getTag( "phoenix" );
          if( null != tag )
          {
              schemaType = tag.getParameter( "schema-type" );
          }
  
          return new BlockDescriptor( component.getName(),
                                      component.getImplementationKey(),
                                      schemaType,
                                      version );
      }
  
      private static Version toVersion( final FeatureDescriptor component )
      {
          final Tag tag = component.getTag( "avalon" );
          Version version = new Version( 1, 0, 0 );
          if( null != tag )
          {
              final String versionString = tag.getParameter( "version" );
              if( null != versionString )
              {
                  version = Version.getVersion( versionString );
              }
          }
          return version;
      }
  }
  
  
  

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