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From mcconn...@apache.org
Subject cvs commit: avalon/meta/tools/src/java/org/apache/avalon/meta/info/builder/tags SecurityTag.java
Date Tue, 24 Feb 2004 22:33:44 GMT
mcconnell    2004/02/24 14:33:44

  Added:       meta/tools/src/java/org/apache/avalon/meta/info/builder/tags
                        SecurityTag.java
  Log:
  The security tag handler.
  
  Revision  Changes    Path
  1.1                  avalon/meta/tools/src/java/org/apache/avalon/meta/info/builder/tags/SecurityTag.java
  
  Index: SecurityTag.java
  ===================================================================
  /* 
   * Copyright 2004 Apache Software Foundation
   * Licensed  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.
   */
  
  package org.apache.avalon.meta.info.builder.tags;
  
  import java.util.Properties;
  import java.util.ArrayList;
  import java.util.StringTokenizer;
  
  import org.apache.avalon.framework.Version;
  import org.apache.avalon.meta.info.SecurityDescriptor;
  import org.apache.avalon.meta.info.PermissionDescriptor;
  import org.apache.avalon.meta.info.Service;
  
  import com.thoughtworks.qdox.model.DocletTag;
  import com.thoughtworks.qdox.model.JavaClass;
  
  /**
   * A doclet tag the declares a service definition.
   *
   * @author <a href="mailto:dev@avalon.apache.org">Avalon Development Team</a>
   * @version $Revision: 1.1 $ $Date: 2004/02/24 22:33:44 $
   */
  public class SecurityTag extends AbstractTag
  {
     /**
      * Javadoc tag key for the name tag.
      */
      public static final String KEY = "security";
  
     /**
      * Javadoc tag key for the permission tag.
      */
      public static final String PERMISSION_KEY = KEY + ".permission";
  
     /**
      * The version parameter
      */
      public static final String CLASSNAME_PARAM = "class";
  
     /**
      * The version parameter
      */
      public static final String NAME_PARAM = "name";
  
     /**
      * The version parameter
      */
      public static final String ACTIONS_PARAM = "actions";
  
     /**
      * Type tag constructor.
      * @param clazz the javadoc class descriptor
      */
      public SecurityTag( final JavaClass clazz )
      {
          super( clazz );
      }
  
      public SecurityDescriptor getSecurityDescriptor()
      {
          PermissionDescriptor[] permissions = getPermissions();
          return new SecurityDescriptor( permissions, null );
      }
  
      /**
       * Return the array of dependency descriptors based on the set of
       * 'dependency' tags associated with the components compose or service method.
       * @return the set of dependencies
       */
      public PermissionDescriptor[] getPermissions()
      {
          final ArrayList permissions = new ArrayList();
          final DocletTag[] tags = 
            getJavaClass().getTagsByName( getNS() + Tags.DELIMITER + PERMISSION_KEY );
          for( int i = 0; i < tags.length; i++ )
          {
              permissions.add( getPermission( tags[i] ) );
          }
          return (PermissionDescriptor[])permissions.toArray( 
            new PermissionDescriptor[ permissions.size() ] );
      }
  
     /**
      * Return the value of the Avalon 'service' tag.
      * @return the service descriptor or null if no service is declared
      */
      public PermissionDescriptor getPermission( DocletTag tag )
      {
          final String classname = getNamedParameter( tag, CLASSNAME_PARAM );
          final String name = getNamedParameter( tag, NAME_PARAM, null );
          final String actionString = getNamedParameter( tag, ACTIONS_PARAM, null );
          final String[] actions = expandActions( actionString );
          return new PermissionDescriptor( classname, name, actions );
      }
  
      private static String[] expandActions( String arg )
      {
          if( null == arg ) return new String[0];
          ArrayList list = new ArrayList();
          StringTokenizer tokenizer = new StringTokenizer( arg, "," );
          while( tokenizer.hasMoreTokens() )
          {
              list.add( tokenizer.nextToken() );
          }
          return (String[]) list.toArray( new String[0] );
      }
  
  }
  
  
  

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