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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