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* 新增<renderResultAsJson /> valve，用来将screen所返回的对象转换成json并输出到response。
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Michael Zhou
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Aug 22, 2012
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123 changes: 123 additions & 0 deletions
123
...bine/src/main/java/com/alibaba/citrus/turbine/pipeline/valve/RenderResultAsJsonValve.java
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| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package com.alibaba.citrus.turbine.pipeline.valve; | ||
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| import static com.alibaba.citrus.springext.util.SpringExtUtil.*; | ||
| import static com.alibaba.citrus.util.StringUtil.*; | ||
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| import java.io.PrintWriter; | ||
| import javax.servlet.http.HttpServletRequest; | ||
| import javax.servlet.http.HttpServletResponse; | ||
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| import com.alibaba.citrus.service.pipeline.PipelineContext; | ||
| import com.alibaba.citrus.service.pipeline.Valve; | ||
| import com.alibaba.citrus.service.pipeline.support.AbstractValveDefinitionParser; | ||
| import com.alibaba.fastjson.JSON; | ||
| import org.springframework.beans.factory.annotation.Autowired; | ||
| import org.springframework.beans.factory.support.BeanDefinitionBuilder; | ||
| import org.springframework.beans.factory.xml.ParserContext; | ||
| import org.w3c.dom.Element; | ||
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| /** | ||
| * 将screen所返回的结果转换成json格式并输出。 | ||
| * | ||
| * @author Michael Zhou | ||
| */ | ||
| public class RenderResultAsJsonValve implements Valve { | ||
| private static final String DEFAULT_RESULT_NAME = PerformScreenValve.DEFAULT_RESULT_NAME; | ||
| private static final String DEFAULT_CONTENT_TYPE = "application/json"; | ||
| private static final String DEFAULT_JAVASCRIPT_VARIABLE = null; | ||
| private static final String DEFAULT_JAVASCRIPT_CONTENT_TYPE = "application/javascript"; | ||
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| @Autowired | ||
| private HttpServletRequest request; | ||
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| @Autowired | ||
| private HttpServletResponse response; | ||
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| private String resultName; | ||
| private String contentType; | ||
| private String javascriptVariable; | ||
| private String javascriptContentType; | ||
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| public String getResultName() { | ||
| return resultName == null ? DEFAULT_RESULT_NAME : resultName; | ||
| } | ||
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| public void setResultName(String resultName) { | ||
| this.resultName = trimToNull(resultName); | ||
| } | ||
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| public String getContentType() { | ||
| return contentType == null ? DEFAULT_CONTENT_TYPE : contentType; | ||
| } | ||
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| public void setContentType(String contentType) { | ||
| this.contentType = trimToNull(contentType); | ||
| } | ||
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| public String getJavascriptVariable() { | ||
| return javascriptVariable == null ? DEFAULT_JAVASCRIPT_VARIABLE : javascriptVariable; | ||
| } | ||
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| public void setJavascriptVariable(String javascriptVariable) { | ||
| this.javascriptVariable = trimToNull(javascriptVariable); | ||
| } | ||
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| public String getJavascriptContentType() { | ||
| return javascriptContentType == null ? DEFAULT_JAVASCRIPT_CONTENT_TYPE : javascriptContentType; | ||
| } | ||
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| public void setJavascriptContentType(String javascriptContentType) { | ||
| this.javascriptContentType = trimToNull(javascriptContentType); | ||
| } | ||
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| public void invoke(PipelineContext pipelineContext) throws Exception { | ||
| String javascriptVariable = getJavascriptVariable(); | ||
| boolean outputAsJson = javascriptVariable == null; | ||
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| if (outputAsJson) { | ||
| // output as json | ||
| response.setContentType(getContentType()); | ||
| } else { | ||
| // output as javascript | ||
| response.setContentType(getJavascriptContentType()); | ||
| } | ||
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| PrintWriter out = response.getWriter(); | ||
| Object resultObject = pipelineContext.getAttribute(getResultName()); | ||
| String jsonResult = JSON.toJSONString(resultObject); | ||
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| if (outputAsJson) { | ||
| out.print(jsonResult); | ||
| } else { | ||
| out.print("var "); | ||
| out.print(javascriptVariable); | ||
| out.print(" = "); | ||
| out.print(jsonResult); | ||
| out.print(";"); | ||
| } | ||
| } | ||
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| public static class DefinitionParser extends AbstractValveDefinitionParser<RenderResultAsJsonValve> { | ||
| @Override | ||
| protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) { | ||
| attributesToProperties(element, builder, "resultName", "contentType", "javascriptVariable", "javascriptContentType"); | ||
| } | ||
| } | ||
| } |
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27 changes: 27 additions & 0 deletions
27
webx/turbine/src/main/resources/META-INF/services/pipeline/valves/renderResultAsJson.xsd
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| <?xml version="1.0" encoding="UTF-8"?> | ||
| <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" | ||
| xmlns:beans="http://www.springframework.org/schema/beans" | ||
| xmlns:springext="http://www.alibaba.com/schema/springext/base" elementFormDefault="qualified"> | ||
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| <xsd:import namespace="http://www.springframework.org/schema/beans" | ||
| schemaLocation="http://localhost:8080/schema/www.springframework.org/schema/beans/spring-beans.xsd" /> | ||
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| <xsd:import namespace="http://www.alibaba.com/schema/springext/base" | ||
| schemaLocation="http://localhost:8080/schema/www.alibaba.com/schema/springext/springext-base.xsd" /> | ||
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| <xsd:element name="renderResultAsJson" type="RenderResultAsJsonType"> | ||
| <xsd:annotation> | ||
| <xsd:documentation><![CDATA[ | ||
| 将screen所返回的结果转换成json格式并输出。 | ||
| ]]></xsd:documentation> | ||
| </xsd:annotation> | ||
| </xsd:element> | ||
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| <xsd:complexType name="RenderResultAsJsonType"> | ||
| <xsd:attribute name="resultName" type="xsd:string" default="screenResult" /> | ||
| <xsd:attribute name="contentType" type="xsd:string" default="application/json" /> | ||
| <xsd:attribute name="javascriptVariable" type="xsd:string" use="optional" /> | ||
| <xsd:attribute name="javascriptContentType" type="xsd:string" default="application/javascript" /> | ||
| </xsd:complexType> | ||
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| </xsd:schema> |
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121 changes: 121 additions & 0 deletions
121
...src/test/java/com/alibaba/citrus/turbine/pipeline/valve/RenderResultAsJsonValveTests.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
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| package com.alibaba.citrus.turbine.pipeline.valve; | ||
|
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| import static org.junit.Assert.*; | ||
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| import com.alibaba.citrus.service.pipeline.impl.PipelineImpl; | ||
| import com.meterware.httpunit.WebResponse; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
|
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| public class RenderResultAsJsonValveTests extends AbstractValveTests { | ||
| @Before | ||
| public void init() { | ||
| pipeline = (PipelineImpl) factory.getBean("renderJson"); | ||
| assertNotNull(pipeline); | ||
| } | ||
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| @Test | ||
| public void outputAsJson_noResult() throws Exception { | ||
| getInvocationContext("http://localhost/app1/myJsonScreen/noResult"); | ||
| initRequestContext(); | ||
| pipeline.newInvocation().invoke(); | ||
| commitRequestContext(); | ||
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| WebResponse webResponse = client.getResponse(invocationContext); | ||
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| assertEquals(200, webResponse.getResponseCode()); | ||
| assertEquals("application/json", webResponse.getContentType()); | ||
| assertEquals("null", webResponse.getText()); | ||
| } | ||
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| @Test | ||
| public void outputAsJson_withResult() throws Exception { | ||
| getInvocationContext("http://localhost/app1/myJsonScreen/withResult"); | ||
| initRequestContext(); | ||
| pipeline.newInvocation().invoke(); | ||
| commitRequestContext(); | ||
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| WebResponse webResponse = client.getResponse(invocationContext); | ||
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| assertEquals(200, webResponse.getResponseCode()); | ||
| assertEquals("application/json", webResponse.getContentType()); | ||
| assertEquals("{\"age\":100,\"name\":\"michael\"}", webResponse.getText()); | ||
| } | ||
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| @Test | ||
| public void outputAsJson_withResult_specifiedContentType() throws Exception { | ||
| pipeline = (PipelineImpl) factory.getBean("renderJson_specifiedContentType"); | ||
| getInvocationContext("http://localhost/app1/myJsonScreen/withResult"); | ||
| initRequestContext(); | ||
| pipeline.newInvocation().invoke(); | ||
| commitRequestContext(); | ||
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| WebResponse webResponse = client.getResponse(invocationContext); | ||
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| assertEquals(200, webResponse.getResponseCode()); | ||
| assertEquals("text/plain", webResponse.getContentType()); | ||
| assertEquals("{\"age\":100,\"name\":\"michael\"}", webResponse.getText()); | ||
| } | ||
|
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| @Test | ||
| public void outputAsJs_noResult() throws Exception { | ||
| pipeline = (PipelineImpl) factory.getBean("renderJsonAsJs"); | ||
| getInvocationContext("http://localhost/app1/myJsonScreen/noResult"); | ||
| initRequestContext(); | ||
| pipeline.newInvocation().invoke(); | ||
| commitRequestContext(); | ||
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| WebResponse webResponse = client.getResponse(invocationContext); | ||
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| assertEquals(200, webResponse.getResponseCode()); | ||
| assertEquals("application/javascript", webResponse.getContentType()); | ||
| assertEquals("var myresult = null;", webResponse.getText()); | ||
| } | ||
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| @Test | ||
| public void outputAsJs_withResult() throws Exception { | ||
| pipeline = (PipelineImpl) factory.getBean("renderJsonAsJs"); | ||
| getInvocationContext("http://localhost/app1/myJsonScreen/withResult"); | ||
| initRequestContext(); | ||
| pipeline.newInvocation().invoke(); | ||
| commitRequestContext(); | ||
|
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| WebResponse webResponse = client.getResponse(invocationContext); | ||
|
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| assertEquals(200, webResponse.getResponseCode()); | ||
| assertEquals("application/javascript", webResponse.getContentType()); | ||
| assertEquals("var myresult = {\"age\":100,\"name\":\"michael\"};", webResponse.getText()); | ||
| } | ||
|
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| @Test | ||
| public void outputAsJs_withResult_specifiedContentType() throws Exception { | ||
| pipeline = (PipelineImpl) factory.getBean("renderJsonAsJs_specifiedContentType"); | ||
| getInvocationContext("http://localhost/app1/myJsonScreen/withResult"); | ||
| initRequestContext(); | ||
| pipeline.newInvocation().invoke(); | ||
| commitRequestContext(); | ||
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| WebResponse webResponse = client.getResponse(invocationContext); | ||
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| assertEquals(200, webResponse.getResponseCode()); | ||
| assertEquals("text/js", webResponse.getContentType()); | ||
| assertEquals("var myresult = {\"age\":100,\"name\":\"michael\"};", webResponse.getText()); | ||
| } | ||
| } |
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