org.apache.tiles.request.render.BasicRendererFactory Maven / Gradle / Ivy
/*
* 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.tiles.request.render;
import java.util.HashMap;
import java.util.Map;
/**
* Basic renderer factory implementation.
*/
public class BasicRendererFactory implements RendererFactory {
/**
* The renderer name/renderer map.
*/
protected Map renderers;
/**
* The default renderer.
*/
protected Renderer defaultRenderer;
/**
* Constructor.
*/
public BasicRendererFactory() {
renderers = new HashMap<>();
}
/** {@inheritDoc} */
public Renderer getRenderer(String name) {
Renderer retValue;
if (name != null) {
retValue = renderers.get(name);
if (retValue == null) {
throw new NoSuchRendererException("Cannot find a renderer named '" + name + "'");
}
} else {
retValue = defaultRenderer;
}
return retValue;
}
/**
* Sets the default renderer.
*
* @param renderer The default renderer.
*/
public void setDefaultRenderer(Renderer renderer) {
this.defaultRenderer = renderer;
}
/**
* Registers a renderer.
*
* @param name The name of the renderer.
* @param renderer The renderer to register.
*/
public void registerRenderer(String name, Renderer renderer) {
renderers.put(name, renderer);
}
}