| <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang=""><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../jacoco-resources/report.gif" type="image/gif"/><title>PlainJSONScreen.java</title><link rel="stylesheet" href="../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../index.html" class="el_report">Apache Turbine</a> > <a href="index.source.html" class="el_package">org.apache.turbine.modules.screens</a> > <span class="el_source">PlainJSONScreen.java</span></div><h1>PlainJSONScreen.java</h1><pre class="source lang-java linenums">package org.apache.turbine.modules.screens; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.io.OutputStreamWriter; |
| import java.io.PrintWriter; |
| import java.nio.charset.Charset; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.apache.turbine.pipeline.PipelineData; |
| import org.apache.turbine.util.RunData; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A Screen class for dealing with JSON requests. Typically you would |
| * extend this class and override the doOutput() method to use it by setting the JSON output into |
| * rundata.setMessage( serialized ). |
| * As convenience you may use inject in your extended class the Turbine service JsonService |
| * Use {@link PlainJSONSecureAnnotatedScreen} if you need the user to be |
| * logged in or having a special role in prior to executing the functions you provide. |
| * |
| * <p>Here is an example from a subclass: |
| * |
| * <code> |
| * |
| * |
| * public void doOutput(PipelineData pipelineData) throws Exception |
| * { |
| * RunData data = pipelineData.getRunData(); |
| * JSONStrategy strategy = null; |
| * |
| * try |
| * { |
| * strategy = new XYStrategy(); |
| * // the result goes into rundata.message |
| * strategy.execute(data, jsonService); |
| * } |
| * catch ( Exception e ) |
| * { |
| * log.error( "init failed for "+strategy , e); |
| * String msg = new JSONObject().put("error", e.getMessage()).toString(); |
| * data.setMessage( msg ); |
| * } |
| * |
| * super.doOutput(data); |
| * } |
| * </code> |
| * |
| * |
| * @author gk |
| * @version $Id$ |
| */ |
| <span class="nc" id="L72">public class PlainJSONScreen extends RawScreen</span> |
| { |
| protected static final String JSON_TYPE = "application/json;charset=utf-8"; |
| |
| protected final static int BUFFER_SIZE = 4096; |
| |
| <span class="nc" id="L78"> static final Logger log = LoggerFactory.getLogger(PlainJSONScreen.class);</span> |
| |
| /** Injected service instance */ |
| //@TurbineService |
| //protected JsonService jsonService; |
| |
| /** |
| * @see org.apache.turbine.modules.screens.RawScreen#getContentType(org.apache.turbine.pipeline.PipelineData) |
| */ |
| @Override |
| protected String getContentType(PipelineData pipelineData) |
| { |
| <span class="nc" id="L90"> return JSON_TYPE;</span> |
| } |
| |
| /** |
| * Output JSON content set into {@link RunData#getMessage()}. |
| * |
| * Encoding is UTF-8. @{@link #JSON_TYPE}: {@value #JSON_TYPE}. |
| * |
| * @param pipelineData The PipelineData object. |
| */ |
| @Override |
| protected void doOutput(PipelineData pipelineData) throws Exception |
| { |
| <span class="nc" id="L103"> RunData data = pipelineData.getRunData();</span> |
| // read in json! |
| <span class="nc" id="L105"> Charset charset = StandardCharsets.UTF_8; //request.getCharacterEncoding();</span> |
| |
| <span class="nc" id="L107"> String json_res = data.getMessage();</span> |
| |
| <span class="nc" id="L109"> log.debug( "json_res output: {}", json_res );</span> |
| <span class="nc" id="L110"> try (PrintWriter out = new PrintWriter(</span> |
| new OutputStreamWriter( |
| <span class="nc" id="L112"> data.getResponse().getOutputStream(),charset)))</span> |
| { |
| <span class="nc" id="L114"> out.print(json_res.toString());</span> |
| <span class="nc" id="L115"> out.flush();</span> |
| } |
| <span class="nc" id="L117"> }</span> |
| } |
| </pre><div class="footer"><span class="right">Created with <a href="http://www.jacoco.org/jacoco">JaCoCo</a> 0.8.12.202403310830</span></div></body></html> |
