1 | package org.greenstone.gsdl3.action;
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2 |
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3 | import org.greenstone.gsdl3.core.ModuleInterface;
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4 | import org.greenstone.gsdl3.util.*;
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5 |
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6 | // XML classes
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7 | import org.w3c.dom.Node;
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8 | import org.w3c.dom.Element;
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9 | import org.w3c.dom.Document;
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10 |
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11 | // other java stuff
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12 | import java.io.File;
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13 | import java.util.*;
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14 | import java.io.StringReader;
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15 | import org.xml.sax.InputSource;
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16 | import javax.xml.parsers.DocumentBuilder;
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17 | import javax.xml.parsers.DocumentBuilderFactory;
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18 |
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19 | import java.io.*;
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20 | import org.xml.sax.*;
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21 | import javax.xml.parsers.SAXParserFactory;
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22 | import javax.xml.parsers.ParserConfigurationException;
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23 | import javax.xml.parsers.SAXParser;
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24 |
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25 | import java.io.PrintWriter;
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26 | import java.io.Serializable;
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27 | import java.io.StringWriter;
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28 |
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29 | import org.apache.log4j.*;
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30 |
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31 | public class SystemAction extends Action
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32 | {
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33 |
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34 | static Logger logger = Logger.getLogger(org.greenstone.gsdl3.action.SystemAction.class.getName());
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35 |
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36 | String tempVal = "";
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37 |
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38 | /** process a request */
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39 | public Node process(Node message_node)
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40 | {
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41 |
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42 | Element message = this.converter.nodeToElement(message_node);
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43 |
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44 | // assume only one request
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45 | Element request = (Element) GSXML.getChildByTagName(message, GSXML.REQUEST_ELEM);
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46 |
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47 | String subaction = request.getAttribute(GSXML.SUBACTION_ATT);
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48 | UserContext userContext = new UserContext(request);
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49 | // get the param list
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50 | Element cgi_param_list = (Element) GSXML.getChildByTagName(request, GSXML.PARAM_ELEM + GSXML.LIST_MODIFIER);
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51 | HashMap<String, Serializable> params = GSXML.extractParams(cgi_param_list, false);
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52 |
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53 | Element result = this.doc.createElement(GSXML.MESSAGE_ELEM);
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54 |
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55 | String coll = (String) params.get(GSParams.SYSTEM_CLUSTER);
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56 |
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57 | String to = "";
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58 | if (coll != null && !coll.equals(""))
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59 | {
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60 | to = coll;
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61 | }
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62 |
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63 | Element mr_request_message = this.doc.createElement(GSXML.MESSAGE_ELEM);
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64 | Element mr_request = GSXML.createBasicRequest(this.doc, GSXML.REQUEST_TYPE_SYSTEM, to, userContext);
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65 | mr_request_message.appendChild(mr_request);
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66 |
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67 | Element system = this.doc.createElement(GSXML.SYSTEM_ELEM);
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68 | mr_request.appendChild(system);
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69 |
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70 | // will need to change the following if can do more than one system request at once
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71 | if (subaction.equals("c"))
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72 | { // configure
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73 | system.setAttribute(GSXML.TYPE_ATT, GSXML.SYSTEM_TYPE_CONFIGURE);
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74 | String info = (String) params.get(GSParams.SYSTEM_SUBSET);
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75 | system.setAttribute(GSXML.SYSTEM_SUBSET_ATT, info);
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76 | }
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77 | else if (subaction.equals("ping")) { // can ping the server or a collection
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78 | String name = (String) params.get(GSParams.SYSTEM_MODULE_NAME);
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79 |
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80 | if(name != null && !name.equals("")) {
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81 | // Pinging a collection (or module) with ?a=s&sa=ping&st=collection&sn=<colName>
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82 | // is a collection-level (servicecluster/module level) ping
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83 |
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84 | String type = (String) params.get(GSParams.SYSTEM_MODULE_TYPE);
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85 | if(type == null || type.equals("")) {
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86 | type = "collection"; // if the st=collection was omitted, assume collection
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87 | }
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88 | // ping action set to moduleType=Collection and moduleName=colName
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89 | system.setAttribute(GSXML.SYSTEM_MODULE_NAME_ATT, name);
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90 | system.setAttribute(GSXML.SYSTEM_MODULE_TYPE_ATT, type);
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91 | system.setAttribute(GSXML.TYPE_ATT, GSXML.SYSTEM_TYPE_PING);
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92 | } // else SYSTEM_MODULE_NAME given by the "sn" GSParam is null or empty
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93 | // meaning server-level ping: ?a=s&sa=ping
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94 |
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95 | system.setAttribute(GSXML.TYPE_ATT, GSXML.SYSTEM_TYPE_PING);
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96 | }
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97 | //else if (subaction.equals("is-persistent")){
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98 | // system.setAttribute(GSXML.TYPE_ATT, GSXML.SYSTEM_TYPE_ISPERSISTENT);
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99 | //}
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100 | else
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101 | {
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102 | String name = (String) params.get(GSParams.SYSTEM_MODULE_NAME);
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103 | String type = (String) params.get(GSParams.SYSTEM_MODULE_TYPE);
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104 |
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105 | system.setAttribute(GSXML.SYSTEM_MODULE_NAME_ATT, name);
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106 | system.setAttribute(GSXML.SYSTEM_MODULE_TYPE_ATT, type);
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107 |
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108 | if (subaction.equals("d"))
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109 | { // delete
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110 | system.setAttribute(GSXML.TYPE_ATT, GSXML.SYSTEM_TYPE_DEACTIVATE);
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111 |
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112 | }
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113 | else if (subaction.equals("a"))
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114 | { // add
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115 | system.setAttribute(GSXML.TYPE_ATT, GSXML.SYSTEM_TYPE_ACTIVATE);
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116 | }
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117 | else
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118 | {
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119 | // create the default response
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120 | // for now just have an error
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121 | logger.error("bad subaction type");
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122 | Element page_response = this.doc.createElement(GSXML.RESPONSE_ELEM);
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123 | result.appendChild(page_response);
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124 |
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125 | return result;
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126 | }
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127 | }
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128 |
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129 | Node response_message = this.mr.process(mr_request_message);
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130 |
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131 | Element response = GSXML.duplicateWithNewName(this.doc, (Element) GSXML.getChildByTagName(response_message, GSXML.RESPONSE_ELEM), GSXML.RESPONSE_ELEM, true);
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132 | addSiteMetadata(response, userContext);
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133 | addInterfaceOptions(response);
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134 |
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135 | result.appendChild(response);
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136 | return result;
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137 |
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138 | }
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139 |
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140 | }
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