| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.tomcat.util.modeler.modules; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.util.List; |
| |
| import javax.management.ObjectName; |
| |
| import org.apache.tomcat.util.modeler.Registry; |
| |
| /** Source for descriptor data. More sources can be added. |
| * |
| */ |
| public class ModelerSource { |
| protected Object source; |
| protected String location; |
| |
| /** Load data, returns a list of items. |
| * |
| * @param registry |
| * @param location |
| * @param type |
| * @param source Introspected object or some other source |
| * @throws Exception |
| */ |
| public List<ObjectName> loadDescriptors( Registry registry, String location, |
| String type, Object source) throws Exception { |
| // TODO |
| return null; |
| } |
| |
| /** Callback from the BaseMBean to notify that an attribute has changed. |
| * Can be used to implement persistence. |
| * |
| * @param oname |
| * @param name |
| * @param value |
| */ |
| public void updateField( ObjectName oname, String name, |
| Object value ) { |
| // nothing by default |
| } |
| |
| public void store() { |
| // nothing |
| } |
| |
| protected InputStream getInputStream() throws IOException { |
| if( source instanceof URL ) { |
| URL url=(URL)source; |
| location=url.toString(); |
| return url.openStream(); |
| } else if( source instanceof File ) { |
| location=((File)source).getAbsolutePath(); |
| return new FileInputStream((File)source); |
| } else if( source instanceof String) { |
| location=(String)source; |
| return new FileInputStream((String)source); |
| } else if( source instanceof InputStream ) { |
| return (InputStream)source; |
| } |
| return null; |
| } |
| |
| } |