cvs commit: jakarta-tomcat-catalina/modules/storeconfig/src/share/org/apache/catalina/storeconfig ReplicationTransmitterStoreAppender.java

[pe...@apache.org]

pero        2005/02/15 01:34:48

  Added:       modules/storeconfig/src/share/org/apache/catalina/storeconfig
                        ReplicationTransmitterStoreAppender.java
  Log:
  add for ReplicationTransmitter dynamic porperty handing
  
  Revision  Changes    Path
  1.1                  jakarta-tomcat-catalina/modules/storeconfig/src/share/org/apache/catalina/storeconfig/ReplicationTransmitterStoreAppender.java
  
  Index: ReplicationTransmitterStoreAppender.java
  ===================================================================
  /**
   * Copyright 1999-2001,2004 The 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.catalina.storeconfig;
  
  import java.beans.IndexedPropertyDescriptor;
  import java.beans.IntrospectionException;
  import java.beans.Introspector;
  import java.beans.PropertyDescriptor;
  import java.io.PrintWriter;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.catalina.cluster.tcp.ReplicationTransmitter;
  import org.apache.tomcat.util.IntrospectionUtils;
  
  /**
   * Store the ReplicationTransmitter attributes. 
   * 
   * @author Peter Rossbach
   *  
   */
  public class ReplicationTransmitterStoreAppender extends StoreAppender {
  
      /**
       * Store the relevant attributes of the specified JavaBean.
       * 
       * @param writer
       *            PrintWriter to which we are storing
       * @param include
       *            Should we include a <code>className</code> attribute?
       * @param bean
       *            Bean whose properties are to be rendered as attributes,
       * @param desc
       *            RegistryDescrpitor from this bean
       * 
       * @exception Exception
       *                if an exception occurs while storing
       */
      public void printAttributes(PrintWriter writer, int indent,
              boolean include, Object bean, StoreDescription desc)
              throws Exception {
  
          // Render the relevant properties of this bean
          String className = bean.getClass().getName();
  
          // Render a className attribute if requested
          if (include && desc != null && !desc.isStandard()) {
              writer.print(" className=\"");
              writer.print(bean.getClass().getName());
              writer.print("\"");
          }
  
          List propertyKeys = getPropertyKeys((ReplicationTransmitter) bean);
          // Create blank instance
          Object bean2 = defaultInstance(bean);
          for (Iterator propertyIterator = propertyKeys.iterator(); propertyIterator
                  .hasNext();) {
              String key = (String) propertyIterator.next();
              Object value = (Object) IntrospectionUtils.getProperty(bean, key);
  
              if (desc.isTransientAttribute(key)) {
                  continue; // Skip the specified exceptions
              }
              if (value == null) {
                  continue; // Null values are not persisted
              }
              if (!isPersistable(value.getClass())) {
                  continue;
              }
              Object value2 = IntrospectionUtils.getProperty(bean2, key);
              if (value.equals(value2)) {
                  // The property has its default value
                  continue;
              }
              if (isPrintValue(bean, bean2, key, desc))
                  printValue(writer, indent, key, value);
          }
      }
  
      /**
       * Get all properties from ReplicationTransmitter (also dynamic properties)
       * 
       * @param bean
       * @return List of Connector Properties
       * @throws IntrospectionException
       */
      protected List getPropertyKeys(ReplicationTransmitter bean)
              throws IntrospectionException {
          ArrayList propertyKeys = new ArrayList();
          // Acquire the list of properties for this bean
          PropertyDescriptor descriptors[] = Introspector.getBeanInfo(
                  bean.getClass()).getPropertyDescriptors();
          if (descriptors == null) {
              descriptors = new PropertyDescriptor[0];
          }
          for (int i = 0; i < descriptors.length; i++) {
              if (descriptors[i] instanceof IndexedPropertyDescriptor) {
                  continue; // Indexed properties are not persisted
              }
              if (!isPersistable(descriptors[i].getPropertyType())
                      || (descriptors[i].getReadMethod() == null)
                      || (descriptors[i].getWriteMethod() == null)) {
                  continue; // Must be a read-write primitive or String
              }
              propertyKeys.add(descriptors[i].getName());
          }
          for (Iterator propertyIterator = bean.getPropertyNames(); propertyIterator
                  .hasNext();) {
              Object key = propertyIterator.next();
              if (propertyKeys.contains(key))
                  continue;
              if ("className".equals(key))
                  continue;
              propertyKeys.add(key);
          }
          return propertyKeys;
      }
  
  }
  
  

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