1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany |
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2 | // |
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3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
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4 | // you may not use this file except in compliance with the License. |
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5 | // You may obtain a copy of the License at |
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6 | // |
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7 | // http://www.apache.org/licenses/LICENSE-2.0 |
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8 | // |
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9 | // Unless required by applicable law or agreed to in writing, software |
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10 | // distributed under the License is distributed on an "AS IS" BASIS, |
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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12 | // See the License for the specific language governing permissions and |
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13 | // limitations under the License. |
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14 | |
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15 | package de.ugoe.cs.autoquest.httpmonitor; |
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16 | |
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17 | import java.io.BufferedReader; |
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18 | import java.io.File; |
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19 | import java.io.IOException; |
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20 | import java.io.InputStream; |
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21 | import java.io.InputStreamReader; |
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22 | import java.util.logging.Level; |
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23 | |
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24 | import org.apache.http.HttpEntity; |
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25 | import org.apache.http.HttpResponse; |
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26 | import org.apache.http.client.methods.HttpGet; |
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27 | import org.apache.http.client.methods.HttpPost; |
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28 | import org.apache.http.client.methods.HttpRequestBase; |
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29 | import org.apache.http.entity.ContentType; |
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30 | import org.apache.http.entity.StringEntity; |
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31 | import org.apache.http.impl.client.DefaultHttpClient; |
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32 | import org.eclipse.jetty.server.Server; |
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33 | import org.eclipse.jetty.servlet.ServletContextHandler; |
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34 | import org.eclipse.jetty.servlet.ServletHolder; |
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35 | import org.junit.After; |
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36 | import org.junit.Before; |
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37 | |
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38 | import de.ugoe.cs.util.console.TextConsole; |
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39 | |
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40 | /** |
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41 | * |
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42 | */ |
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43 | public abstract class AbstractTC { |
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44 | |
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45 | /** |
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46 | * |
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47 | */ |
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48 | protected static final TextConsole CONSOLE = new TextConsole(Level.FINEST); |
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49 | |
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50 | /** |
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51 | * |
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52 | */ |
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53 | protected final static String LOG_FILE_DIR = "target/tmp/logfiles/"; |
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54 | |
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55 | /** |
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56 | * |
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57 | */ |
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58 | protected static final int PORT = 19098; |
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59 | |
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60 | /** |
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61 | * the jetty web server used for receiving messages |
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62 | */ |
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63 | private Server dummyServer; |
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64 | |
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65 | /** |
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66 | * the servlet of the dummy web server responding to requests |
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67 | */ |
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68 | private DummyServlet dummyServlet; |
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69 | |
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70 | /** |
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71 | * |
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72 | */ |
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73 | @Before |
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74 | public void setUp() throws Exception { |
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75 | // setup a simple HTTP server |
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76 | dummyServer = new Server(PORT + 1); |
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77 | |
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78 | ServletContextHandler root = |
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79 | new ServletContextHandler(dummyServer, "/", ServletContextHandler.SESSIONS); |
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80 | |
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81 | dummyServlet = new DummyServlet(); |
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82 | root.addServlet(new ServletHolder(dummyServlet), "/*"); |
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83 | |
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84 | dummyServer.start(); |
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85 | |
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86 | setUpHook(); |
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87 | } |
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88 | |
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89 | /** |
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90 | * |
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91 | */ |
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92 | protected abstract void setUpHook() throws Exception; |
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93 | |
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94 | /** |
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95 | * |
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96 | */ |
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97 | @After |
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98 | public void tearDown() throws Exception { |
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99 | // give all started servers a second to finalize their internal work after the test |
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100 | // execution. This prevents some unnecessary exceptions due to requests already processed |
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101 | // by the test case but not finalized on server side. |
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102 | Thread.sleep(1000); |
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103 | tearDownHook(); |
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104 | |
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105 | if (dummyServer != null) { |
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106 | try { |
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107 | dummyServer.stop(); |
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108 | } |
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109 | finally { |
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110 | dummyServer = null; |
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111 | } |
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112 | } |
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113 | |
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114 | deleteFiles(new File(LOG_FILE_DIR)); |
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115 | } |
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116 | |
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117 | /** |
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118 | * |
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119 | */ |
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120 | protected abstract void tearDownHook() throws Exception; |
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121 | |
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122 | /** |
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123 | * |
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124 | */ |
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125 | protected String sendDummyMessage(String type, String message, String respMsg) |
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126 | throws Exception |
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127 | { |
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128 | dummyServlet.setResponse(respMsg); |
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129 | |
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130 | System.err.println("sending message: " + message); |
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131 | DefaultHttpClient httpclient = new DefaultHttpClient(); |
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132 | HttpRequestBase httpRequest = null; |
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133 | |
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134 | if ("POST".equals(type)) { |
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135 | httpRequest = new HttpPost("http://localhost:" + PORT + "/"); |
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136 | HttpEntity entity = new StringEntity(message, ContentType.TEXT_PLAIN); |
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137 | ((HttpPost) httpRequest).setEntity(entity); |
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138 | } |
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139 | else if ("GET".equals(type)) { |
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140 | httpRequest = new HttpGet("http://localhost:" + PORT + "/"); |
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141 | } |
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142 | |
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143 | try { |
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144 | HttpResponse response = httpclient.execute(httpRequest); |
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145 | String responseStr = readStreamContentToString(response.getEntity().getContent()); |
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146 | System.err.println("received response: " + message); |
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147 | return responseStr; |
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148 | } |
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149 | finally { |
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150 | httpRequest.releaseConnection(); |
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151 | } |
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152 | } |
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153 | |
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154 | /** |
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155 | * |
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156 | */ |
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157 | protected String readStreamContentToString(InputStream stream) throws IOException { |
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158 | return readToString(new BufferedReader(new InputStreamReader(stream))); |
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159 | } |
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160 | |
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161 | /** |
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162 | * |
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163 | */ |
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164 | protected String readToString(BufferedReader reader) throws IOException { |
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165 | StringBuffer message = new StringBuffer(); |
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166 | |
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167 | String line = reader.readLine(); |
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168 | while (line != null) { |
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169 | System.err.println(line); |
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170 | if (message.length() > 0) { |
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171 | message.append('\n'); |
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172 | } |
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173 | message.append(line); |
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174 | line = reader.readLine(); |
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175 | } |
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176 | |
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177 | return message.toString(); |
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178 | } |
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179 | |
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180 | /** |
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181 | * |
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182 | */ |
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183 | protected void deleteFiles(File file) { |
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184 | if (file.exists()) { |
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185 | if (file.isDirectory()) { |
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186 | for (File child : file.listFiles()) { |
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187 | deleteFiles(child); |
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188 | } |
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189 | } |
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190 | |
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191 | try { |
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192 | file.delete(); |
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193 | } |
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194 | catch (Exception e) { |
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195 | // ignore and delete as much as possible |
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196 | } |
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197 | } |
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198 | } |
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199 | |
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200 | } |
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