/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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 com.alibaba.citrus.service.velocity.support;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import java.util.Iterator;
import com.alibaba.citrus.service.template.Renderable;
import com.alibaba.citrus.service.template.TemplateContext;
import com.alibaba.citrus.service.template.support.MappedTemplateContext;
import com.alibaba.citrus.service.velocity.AbstractVelocityEngineTests;
import com.alibaba.citrus.service.velocity.VelocityEngineTests.MyRenderable;
import org.apache.velocity.app.event.ReferenceInsertionEventHandler;
import org.junit.BeforeClass;
import org.junit.Test;
public class RenderableTests extends AbstractVelocityEngineTests {
@BeforeClass
public static void initFactory() {
factory = createFactory("services_renderable.xml");
}
@Test
public void renderable() throws Exception {
getEngine("default", factory);
// 有且仅有一个handler
Iterator<?> i = velocityEngine.getConfiguration().getEventCartridge().getReferenceInsertionEventHandlers();
assertThat(i.next(), instanceOf(RenderableHandler.class));
assertFalse(i.hasNext());
// 渲染
TemplateContext ctx = new MappedTemplateContext();
ctx.put("object", new MyRenderable());
String content = templateService.getText("test_renderable.vm", ctx);
assertThat(content, containsString("from render()"));
assertThat(content, not(containsString("from toString()")));
}
@Test
public void renderable_config() throws Exception {
getEngine("with_renderable_support", factory);
// 有两个handler
Iterator<?> i = velocityEngine.getConfiguration().getEventCartridge().getReferenceInsertionEventHandlers();
assertThat(i.next(), instanceOf(MakeEverythingRenderable.class));
assertThat(i.next(), instanceOf(RenderableHandler.class));
assertFalse(i.hasNext());
// 渲染
TemplateContext ctx = new MappedTemplateContext();
ctx.put("object", "world");
String content = templateService.getText("test_renderable.vm", ctx);
assertThat(content, containsString("Hello, world"));
}
public static class MakeEverythingRenderable implements ReferenceInsertionEventHandler {
public Object referenceInsert(String reference, final Object value) {
return new Renderable() {
public String render() {
return "Hello, " + value;
}
};
}
}
}