1 |
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2 | package org.greenstone.server;
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3 |
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4 | import java.io.BufferedReader;
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5 | import java.io.File;
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6 | import java.io.FileInputStream;
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7 | import java.io.FileOutputStream;
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8 | import java.io.InputStreamReader;
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9 | import java.io.IOException;
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10 | import java.net.InetAddress;
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11 | import java.net.ServerSocket;
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12 | import java.net.Socket;
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13 | import java.net.UnknownHostException;
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14 | import java.net.URL;
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15 | //import java.net.URLConnection;
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16 | import java.util.ArrayList;
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17 | import java.util.Properties;
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18 | import java.util.StringTokenizer;
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19 |
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20 | import org.apache.log4j.*;
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21 |
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22 | import org.greenstone.util.PortFinder;
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23 | import org.greenstone.util.ScriptReadWrite;
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24 | import org.greenstone.util.RunMake;
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25 | import org.greenstone.util.RunAnt;
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26 |
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27 | import org.greenstone.server.BaseServer;
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28 | import org.greenstone.server.BaseProperty;
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29 |
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30 |
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31 | public class Server2 extends BaseServer
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32 | {
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33 | private static final int WAITING_TIME = 10; // time to wait and check for whether the server is running
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34 | private static final String URL_PENDING="URL_pending";
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35 |
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36 | protected String libraryURL;
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37 | protected String property_prefix;
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38 | protected String gsdlos_gsdlarch;
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39 |
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40 | private class QuitListener extends Thread
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41 | {
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42 | int quitPort = -1;
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43 | ServerSocket serverSocket = null;
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44 |
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45 | public QuitListener(int quitport) throws Exception {
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46 | ///Server2.this.recordSuccess("In QuitListener constructor");
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47 | this.quitPort = quitport;
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48 | serverSocket = new ServerSocket(quitPort);
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49 | }
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50 |
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51 | public void run() {
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52 | Socket connection = null;
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53 |
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54 | try {
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55 | // wait for a connection
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56 | connection = serverSocket.accept();
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57 | boolean stop = false;
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58 |
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59 | // read input
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60 | try {
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61 | BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
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62 | String line = null;
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63 | while((line = reader.readLine()) != null) {
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64 | if(line.equals("QUIT")) {
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65 | stop = true;
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66 | // Server2.this.recordSuccess("In QuitListener - line is QUIT");
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67 | reader.close();
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68 | reader = null;
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69 | serverSocket.close();
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70 | serverSocket = null;
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71 | break;
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72 | } else if(line.equals("RECONFIGURE")) {
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73 | server_control_.displayMessage(dictionary.get("ServerControl.Configuring"));
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74 | reconfigRequired();
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75 | } else if(line.equals("RESTART")) {
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76 |
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77 | // If the GSI is set to NOT autoenter/autostart the server, then write url=URL_PENDING out to the file.
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78 | // When the user finally presses the Enter Library button and so has started up the server, the correct
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79 | // url will be written out to the configfile.
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80 | String url = property_prefix+"url";
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81 | if(config_properties.getProperty(BaseServer.Property.AUTOSTART, "").equals("0")) {
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82 | if(config_properties.getProperty(url) == null) {
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83 | config_properties.setProperty(url, URL_PENDING);
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84 | ScriptReadWrite scriptReadWrite = new ScriptReadWrite();
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85 | ArrayList fileLines = scriptReadWrite.readInFile(BaseServer.config_properties_file);
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86 | scriptReadWrite.replaceOrAddLine(fileLines, url, URL_PENDING, true);
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87 | scriptReadWrite.writeOutFile(config_properties_file, fileLines);
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88 | }
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89 | }
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90 |
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91 | autoStart();
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92 | }
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93 | }
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94 | } catch(Exception e) {
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95 | Server2.this.recordError("Exception in QuitListener thread.");
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96 | } finally {
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97 | if(stop) {
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98 | Server2.this.stop();
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99 | System.exit(0);
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100 | }
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101 | }
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102 | } catch(IOException ioe) {
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103 | Server2.this.recordError("Server2.QuitListener: Unable to make the connection with the client socket." + ioe);
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104 | }
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105 | }
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106 | }
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107 |
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108 |
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109 | public Server2(String gsdl2_home, String gsdlos_arch, String lang, String configfile, int quitPort, String mode)
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110 | {
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111 | super(gsdl2_home, lang, configfile, "etc"+File.separator+"logs-gsi");
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112 | // configfile can be either glisite.cfg or llssite.cfg
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113 |
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114 | //logger_.error("gsdlhome: " + gsdl2_home + " | lang: " + lang + " | configfile: "
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115 | //+ configfile + " | gsdlos_gsdlarch: " + gsdlos_arch + " | mode: " + property_prefix + " | quitport: " + quitPort);
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116 |
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117 | // to get to the OS specific subdirectory of cgi-bin
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118 | gsdlos_gsdlarch = gsdlos_arch;
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119 |
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120 | // property_prefix is the mode we're running in (gli or empty) and contains the prefix
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121 | // string to look for in config file for auto_enter, start_browser and url properties
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122 | property_prefix = mode;
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123 | if(!property_prefix.equals("") && !property_prefix.endsWith(".")) { // ensure a '.' is suffixed if non-empty
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124 | property_prefix += ".";
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125 | }
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126 | Property = new Server2Property(property_prefix);
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127 |
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128 |
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129 | String frame_title = dictionary.get("ServerControl.Frame_Title");
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130 | server_control_ = new Server2Control(this,frame_title);
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131 |
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132 | /* Make command targets for managing Web server */
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133 | START_CMD = "web-start";
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134 | RESTART_CMD = "web-restart";
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135 | CONFIGURE_CMD = "configure-web \"" + configfile + "\"";
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136 | STOP_CMD = "web-stop";
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137 |
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138 | // now we can monitor for the quit command if applicable
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139 | if(quitPort != -1) {
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140 | // First check if given port is within the range of allowed ports
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141 | if(PortFinder.isAssignablePortNumber(quitPort)) {
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142 | try {
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143 | new QuitListener(quitPort).start();
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144 | } catch(Exception e) {
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145 | Server2.this.recordError("Exception constructing the QuitListener thread.");
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146 | }
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147 | }
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148 | else {
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149 | recordError("QuitPort provided is not within acceptable range: ("
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150 | + PortFinder.PORTS_RESERVED + " - " + PortFinder.MAX_PORT + "]" );
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151 | quitPort = -1;
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152 | }
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153 | }
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154 |
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155 | // For some machines, localhost is not sufficient,
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156 | // need hostname defined as well (e.g. Ubuntu 10.10)
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157 | InetAddress inetAddress = null;
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158 | try {
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159 | inetAddress = InetAddress.getLocalHost();
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160 | String hosts = inetAddress.getHostName();
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161 | ScriptReadWrite scriptReadWrite = new ScriptReadWrite();
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162 | ArrayList fileLines = scriptReadWrite.readInFile(BaseServer.config_properties_file);
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163 | scriptReadWrite.replaceOrAddLine(fileLines, "hosts", hosts, true);
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164 | scriptReadWrite.writeOutFile(config_properties_file, fileLines);
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165 | } catch(UnknownHostException e) {
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166 | // Unable to get hostname, need to try for the default localhost without it
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167 | }
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168 |
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169 | // If the GSI is set to NOT autoenter/autostart the server, then write url=URL_PENDING out to the file.
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170 | // When the user finally presses the Enter Library button and so has started up the server, the correct
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171 | // url will be written out to the configfile.
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172 | if(config_properties.getProperty(BaseServer.Property.AUTOSTART, "").equals("0")) {//if(configfile.endsWith("llssite.cfg")) {
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173 | String url = property_prefix+"url";
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174 | if(config_properties.getProperty(url) == null) {
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175 | config_properties.setProperty(url, URL_PENDING);
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176 | ScriptReadWrite scriptReadWrite = new ScriptReadWrite();
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177 | ArrayList fileLines = scriptReadWrite.readInFile(BaseServer.config_properties_file);
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178 | scriptReadWrite.replaceOrAddLine(fileLines, url, URL_PENDING, true);
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179 | scriptReadWrite.writeOutFile(config_properties_file, fileLines);
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180 | }
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181 | }
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182 |
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183 | autoStart();
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184 | }
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185 |
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186 | // Prepare the log4j.properties for GS2
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187 | protected void initLogger() {
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188 |
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189 | String libjavaFolder = gsdl_home+File.separator+"lib"+File.separator+"java"+File.separator;
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190 | File propsFile = new File(libjavaFolder+"log4j.properties");
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191 |
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192 | // create it from the template file log4j.properties.in
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193 | if(!propsFile.exists()) {
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194 | try {
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195 | // need to set gsdl2.home property's value to be gsdl_home,
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196 | // so that the location of the log files gets resolved correctly
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197 |
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198 | // load the template log4j.properties.in file into logProps
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199 | FileInputStream infile = new FileInputStream(new File(libjavaFolder+"log4j.properties.in"));
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200 | if(infile != null) {
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201 | Properties logProps = new Properties();
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202 | logProps.load(infile);
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203 | infile.close();
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204 |
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205 | // set gsdl3.home to gsdl_home
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206 | logProps.setProperty("gsdl2.home", gsdl_home);
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207 |
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208 | // write the customised properties out to a custom log4j.properties file
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209 | FileOutputStream outfile = new FileOutputStream(propsFile);
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210 | if(outfile != null) {
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211 | logProps.store(outfile, "Customised log4j.properties file");
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212 | outfile.close();
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213 | } else {
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214 | System.err.println("Could not store properties file " + propsFile + " for Server2.");
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215 | }
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216 | }
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217 | } catch(Exception e) {
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218 | System.err.println("Exception occurred when custom-configuring the logger for Server2.\n" + e);
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219 | }
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220 | }
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221 |
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222 | // now configure the logger with the custom log4j.properties file
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223 | if(propsFile.exists()) {
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224 | PropertyConfigurator.configure(propsFile.getAbsolutePath());
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225 | } else {
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226 | System.err.println("Could not create properties file " + propsFile + " for Server2.");
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227 | }
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228 | }
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229 |
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230 |
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231 | protected int runTarget(String cmd)
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232 | {
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233 | RunMake runMake = new RunMake();
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234 | runMake.setTargetCmd(cmd);
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235 | runMake.run();
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236 | return runMake.getTargetState();
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237 | }
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238 |
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239 | public String getBrowserURL() {
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240 | return libraryURL;
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241 | }
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242 |
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243 | // works out the library URL again
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244 | public void reload() {
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245 | // default values, to be replaced with what's in gsdlsite.cfg
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246 | String host = "localhost";
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247 | String port = "80";
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248 | String gwcgi;
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249 | String httpprefix = "/greenstone";
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250 | String suffix = "/cgi-bin/library.cgi";
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251 |
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252 | // get the prefix from the gsdlsite.cfg and build.properties files (port number and servername)
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253 | try{
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254 | File gsdlsite_cfg = new File(gsdl_home + File.separator + "cgi-bin" + File.separator
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255 | + gsdlos_gsdlarch + File.separator + "gsdlsite.cfg");
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256 | FileInputStream fin = new FileInputStream(gsdlsite_cfg);
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257 | Properties gsdlProperties = new Properties();
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258 | if(fin != null) {
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259 | gsdlProperties.load(fin);
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260 |
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261 | gwcgi = gsdlProperties.getProperty("gwcgi");
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262 | if(gwcgi != null) {
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263 | suffix = gwcgi;
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264 | } else {
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265 | httpprefix = gsdlProperties.getProperty("httpprefix", httpprefix);
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266 | suffix = httpprefix + suffix;
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267 | }
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268 | fin.close();
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269 | } else {
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270 | recordError("Could not open gsdlsite_cfg for reading, using default library prefix.");
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271 | }
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272 | //reloadConfigProperties();
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273 | port = config_properties.getProperty("portnumber", port);
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274 |
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275 | // The "hosts" property in the config file contains more than one allowed host
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276 | // Need to work out the particular host chosen from the address_resolution_method
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277 | // Default is address_resolution_method 2: localhost
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278 | String addressResolutionMethod = config_properties.getProperty("address_resolution_method");
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279 | int address_resolution_method = (addressResolutionMethod == null) ? 2 : Integer.parseInt(addressResolutionMethod);
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280 | InetAddress inetAddress = null;
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281 | try {
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282 | inetAddress = InetAddress.getLocalHost();
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283 | } catch(UnknownHostException e) {
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284 | logger_.error(e);
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285 | logger_.info("Defaulting host IP to "+ host); // use the default
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286 | address_resolution_method = 2;
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287 | inetAddress = null;
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288 | }
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289 | switch(address_resolution_method) {
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290 | case 0:
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291 | host = inetAddress.getHostName();
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292 | break;
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293 | case 1:
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294 | host = inetAddress.getHostAddress();
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295 | break;
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296 | case 2:
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297 | host = "localhost";
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298 | break;
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299 | case 3:
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300 | host = "127.0.0.1";
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301 | break;
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302 | default:
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303 | host = "localhost";
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304 | }
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305 | } catch(Exception e) {
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306 | recordError("Exception trying to load properties from gsdlsite_cfg. Using default library prefix.", e);
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307 | suffix = httpprefix + suffix;
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308 | }
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309 |
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310 | libraryURL = "http://" + host + ":" + port + suffix;
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311 | }
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312 |
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313 | public boolean reloadConfigProperties(boolean port_has_changed) {
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314 | super.reloadConfigProperties(port_has_changed);
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315 |
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316 | // make sure the port is okay, otherwise find another port
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317 | // first choice is port 80, second choice starts at 8282
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318 | String port = config_properties.getProperty("portnumber", "80");
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319 | String keepport = config_properties.getProperty("keepport", "0"); // default is to not try to force the same port if in use by other servers
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320 |
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321 | int portDefault = 8282;
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322 | try {
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323 | int portNum = Integer.parseInt(port);
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324 | boolean verbose = true;
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325 | if(port_has_changed) { // this is the test that prevents the server from arbitrarily shifting the port.
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326 | // only check at configured port if it's not the current port (the port we
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327 | // are still running on), because that will always be in use and unavailable.
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328 | if(!PortFinder.isPortAvailable(portNum, verbose)) { // first time, print any Port Unavailable messages
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329 | if(keepport.equals("1")) {
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330 | server_control_.errorMessage(dictionary.get("ServerSettings.SettingsUnchangedPortOccupied", new String[]{port}));
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331 | String errorMsg = "Unable to run the Greenstone server on port " + port + ". It appears to already be in use.";
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332 | System.err.println("\n******************");
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333 | logger_.error(errorMsg);
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334 | System.err.println("If you wish to try another port, go to File > Settings of the Greenstone Server interface and either change the port number or untick the \"Do Not Modify Port\" option there. Then press the \"Enter Library\" button.");
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335 | System.err.println("******************\n");
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336 |
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337 | return false; // property change is unsuccessful
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338 |
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339 | } else { // can modify port, try to find a new port
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340 |
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341 | PortFinder portFinder = new PortFinder(portDefault, 101);
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342 | // Search for a free port silently from now on--don't want more
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343 | // messages saying that a port could not be found...
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344 | portNum = portFinder.findPortInRange(!verbose);
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345 |
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346 | if (portNum == -1) {
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347 | // If we've still not found a free port, do we try the default port again?
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348 | System.err.println("No free port found. Going to try on " + portDefault + " anyway.");
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349 | port = Integer.toString(portDefault);
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350 | } else {
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351 | port = Integer.toString(portNum);
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352 | }
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353 | config_properties.setProperty("portnumber", port); // store the correct port
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354 |
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355 | // write this updated port to the config file, since the configure target uses the file to run
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356 | ScriptReadWrite scriptReadWrite = new ScriptReadWrite();
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357 | ArrayList fileLines = scriptReadWrite.readInFile(BaseServer.config_properties_file);
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358 | scriptReadWrite.replaceOrAddLine(fileLines, "portnumber", port, false); // write the correct port
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359 | scriptReadWrite.writeOutFile(config_properties_file, fileLines);
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360 |
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361 | configure_required_ = true;
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362 | System.err.println("Running server on port " + port + ".");
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363 | }
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364 | }
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365 | }
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366 | } catch (Exception e) {
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367 | recordError("Exception in Server2.reload(): " + e.getMessage());
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368 | port = Integer.toString(portDefault);
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369 | }
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370 |
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371 | return true;
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372 | }
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373 |
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374 |
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375 | // About to stop the webserver
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376 | // Custom GS2 action: remove the url property from the config file
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377 | protected void preStop() {
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378 | ScriptReadWrite scriptReadWrite = new ScriptReadWrite();
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379 | ArrayList fileLines = scriptReadWrite.readInFile(BaseServer.config_properties_file);
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380 |
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381 | // Remove the url=... line, start searching from the end
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382 | boolean done = false;
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383 | for (int i = fileLines.size()-1; i >= 0 && !done; i--) {
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384 | String line = ((String) fileLines.get(i)).trim();
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385 | if(line.startsWith(property_prefix+"url=")) {
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386 | fileLines.remove(i);
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387 | done = true;
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388 | }
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389 | }
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390 | scriptReadWrite.writeOutFile(config_properties_file, fileLines);
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391 | }
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392 |
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393 | // Called when the URL has been changed (called after a reload() and starting the server).
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394 | // By the time we get here, reload() would already have been called and have set
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395 | // both the port and worked out libraryURL
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396 | // This method needs to write the URL to the configfile since things should work
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397 | // like GS2's Local Lib Server for Windows
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398 | protected void postStart() {
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399 |
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400 | URL libURL = null;
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401 | try {
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402 | libURL = new URL(libraryURL);
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403 | } catch (Exception e) {
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404 | recordError("Unable to convert library URL string into a valid URL, Server2.java." + e);
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405 | }
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406 |
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407 | // 1. Test that the server is running at the libraryURL before writing it out to glisite.cfg/configfile
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408 | // A quick test involves opening a connection to get the home page for this collection
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409 | if(libURL != null && !libraryURL.equals(URL_PENDING)) {
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410 |
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411 | boolean ready = false;
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412 | for(int i = 0; i < WAITING_TIME && !ready; i++) {
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413 | try {
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414 | libURL.openConnection();
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415 | //URLConnection connection = new URL(libraryURL).openConnection();
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416 | //connection.getContent();
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417 | ready = true;
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418 | recordSuccess("Try connecting to server on url: '" + libraryURL + "'");
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419 | } catch (IOException bad_url_connection) {
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420 | // keep looping
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421 | recordSuccess("NOT YET CONNECTED. Waiting to try again...");
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422 | try {
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423 | Thread.sleep(1000);
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424 | } catch (InterruptedException ie) {
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425 | ready = true;
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426 | recordError("Unexpected: got an InterruptedException in sleeping thread, Server2.java." + ie);
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427 | }
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428 | } catch (Exception e) {
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429 | ready = true;
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430 | recordError("Got an Exception while waiting for the connection to become live, Server2.java." + e);
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431 | }
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432 | }
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433 | }
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434 |
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435 | // 2. Now write the URL to the config file
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436 | String port = config_properties.getProperty("portnumber");
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437 |
|
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438 | ScriptReadWrite scriptReadWrite = new ScriptReadWrite();
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439 | ArrayList fileLines = scriptReadWrite.readInFile(BaseServer.config_properties_file);
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440 | scriptReadWrite.replaceOrAddLine(fileLines, property_prefix+"url", libraryURL, true);
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441 | scriptReadWrite.replaceOrAddLine(fileLines, "portnumber", port, false); // write the correct port
|
---|
442 | scriptReadWrite.writeOutFile(config_properties_file, fileLines);
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443 | }
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444 |
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445 |
|
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446 | public static void main (String[] args)
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447 | {
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448 | if ((args.length < 2) || (args.length > 6)) {
|
---|
449 | System.err.println(
|
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450 | "Usage: java org.greenstone.server.Server2 <gsdl2-home-dir> <GSDLOS_GSDLARCH> [lang] [--mode=\"gli\"] [--config=configfile] [--quitport=portNum]");
|
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451 | System.exit(1);
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452 | }
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453 |
|
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454 | String gsdl2_home = args[0];
|
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455 | File gsdl2_dir = new File(gsdl2_home);
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456 | if (!gsdl2_dir.isDirectory()) {
|
---|
457 | System.err.println("gsdl-home-dir directory does not exist!");
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458 | System.exit(1);
|
---|
459 | }
|
---|
460 |
|
---|
461 | String gsdlos_arch = args[1];
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462 |
|
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463 | //for(int i = 0; i < args.length; i++) { System.err.println("Arg[" + i + "]: |" + args[i] + "|"); }
|
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464 |
|
---|
465 | // for every subsequent argument, check whether we're dealing with amalgamated
|
---|
466 | // parameters in that argument. If so, split on whitespace and reconstruct arguments
|
---|
467 | for(int i = 2; i < args.length; i++) {
|
---|
468 |
|
---|
469 | // if the *last* occurrence of a flag parameter is not at the start of
|
---|
470 | // this argument then we're dealing with amalgamated parameters in this
|
---|
471 | // argument. Need to split on whitespace and reconstitute the args list
|
---|
472 | int lastIndex = args[i].lastIndexOf("--");
|
---|
473 | if(lastIndex > 0) {
|
---|
474 |
|
---|
475 | StringTokenizer tokenizer = new StringTokenizer(args[i]); // splits on whitespace
|
---|
476 | String[] tokens = new String[tokenizer.countTokens()+i];
|
---|
477 | int j = 0;
|
---|
478 | for(; j < i; j++) { // copy over previous arguments
|
---|
479 | tokens[j] = args[j];
|
---|
480 | }
|
---|
481 |
|
---|
482 | // the remainder comes from the tokens
|
---|
483 | for(; tokenizer.hasMoreTokens(); j++) {
|
---|
484 | tokens[j] = tokenizer.nextToken();
|
---|
485 | }
|
---|
486 | args = null;
|
---|
487 | args = tokens;
|
---|
488 | }
|
---|
489 |
|
---|
490 | }
|
---|
491 |
|
---|
492 | // Defaults for optional arguments
|
---|
493 |
|
---|
494 | // if no config file is given, then it defaults to llssite.cfg
|
---|
495 | // (embedded in quotes to preserve spaces in the filepath)
|
---|
496 | File defaultConfigFile = new File(gsdl2_dir, "llssite.cfg");
|
---|
497 | String configfile = defaultConfigFile.getAbsolutePath();
|
---|
498 | int port = -1;
|
---|
499 | String mode = "";
|
---|
500 | String lang = "en";
|
---|
501 |
|
---|
502 | int index = 2; // move onto any subsequent arguments (past 1st GSDLHOME arg and 2nd GSDLOS_GSDLARCH arg)
|
---|
503 | if (args.length > index && !args[index].startsWith("--")) {
|
---|
504 | lang = args[index]; // 2nd arg is not a flag option, so must be language
|
---|
505 | index++;
|
---|
506 | }
|
---|
507 |
|
---|
508 | // Cycle through arguments, parsing and storing them
|
---|
509 | // note that the batch file could have split arguments in the config-
|
---|
510 | // filepath over several parameters. Here we join them back up again.
|
---|
511 | while(args.length > index) {
|
---|
512 |
|
---|
513 | if(args[index].startsWith("--config=")) {
|
---|
514 | configfile = args[index].substring(args[index].indexOf('=')+1); // get value after '=' sign
|
---|
515 | gsdl2_dir = null;
|
---|
516 | defaultConfigFile = null;
|
---|
517 | }
|
---|
518 |
|
---|
519 | else if(args[index].startsWith("--quitport=")) {
|
---|
520 | String quitport = args[index].substring(args[index].indexOf('=')+1);
|
---|
521 | try {
|
---|
522 | port = Integer.parseInt(quitport);
|
---|
523 | } catch(Exception e) { // parse fails
|
---|
524 | System.err.println("Port must be numeric. Continuing without it.");
|
---|
525 | }
|
---|
526 | }
|
---|
527 |
|
---|
528 | // mode can be: "gli" if launched by GLI or unspecified. If unspecified, then
|
---|
529 | // the gs2-server was launched independently.
|
---|
530 | else if(args[index].startsWith("--mode=")) {
|
---|
531 | mode = args[index].substring(args[index].indexOf('=')+1);
|
---|
532 | }
|
---|
533 |
|
---|
534 | else if(!args[index].startsWith("--")) { // assume it's part of the config file name (that this path had spaces in it)
|
---|
535 | configfile = configfile + " " + args[index]; // reinstate space in path
|
---|
536 | }
|
---|
537 |
|
---|
538 | index++;
|
---|
539 | }
|
---|
540 |
|
---|
541 | configfile = configfile.trim(); // remove any trailing whitespace
|
---|
542 | //System.err.println("\n\n*******\n\ngsdlhome: " + gsdl2_home + " | lang: " + lang + " |configfile:"
|
---|
543 | // + configfile + "| mode: " + mode + " | quitport: " + port + "\n\n*************\n");
|
---|
544 | new Server2(gsdl2_home, gsdlos_arch, lang, configfile, port, mode);
|
---|
545 | }
|
---|
546 | }
|
---|