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1 package de.mpiwg.itgroup.nimanager.edit;
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2
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3 import java.io.UnsupportedEncodingException;
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4 import java.net.URLDecoder;
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5 import java.util.ArrayList;
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6 import java.util.Collection;
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7 import java.util.HashMap;
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8 import java.util.Iterator;
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9 import java.util.List;
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10 import java.util.Map;
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11 import java.util.Set;
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12
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13 import org.apache.commons.lang.StringUtils;
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14 import org.apache.log4j.Level;
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15 import org.apache.log4j.Logger;
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16 import org.apache.log4j.lf5.util.StreamUtils;
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17 import org.openrdf.model.Statement;
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18 import org.openrdf.repository.RepositoryException;
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19 import org.openrdf.repository.RepositoryResult;
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20 import org.restlet.Context;
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21 import org.restlet.data.ClientInfo;
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22 import org.restlet.data.Form;
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23 import org.restlet.data.MediaType;
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24 import org.restlet.data.Status;
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25 import org.restlet.engine.component.ChildContext;
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26 import org.restlet.representation.Representation;
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27 import org.restlet.representation.StringRepresentation;
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28 import org.restlet.resource.Get;
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29 import org.restlet.resource.Post;
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30 import org.restlet.resource.ServerResource;
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31 import org.restlet.security.User;
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32
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33 import de.mpiwg.itgroup.metaDataManagerRestlet.RestServer;
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34 import de.mpiwg.itgroup.triplestoremanager.exceptions.TripleStoreHandlerException;
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35 import de.mpiwg.itgroup.triplestoremanager.owl.MetaDataHandler;
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36 import de.mpiwg.itgroup.triplestoremanager.owl.TripleStoreHandler;
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37 import de.mpiwg.itgroup.triplestoremanager.owl.TripleStoreHandler.LiteralQuadruple;
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38 import de.mpiwg.itgroup.triplestoremanager.owl.TripleStoreHandler.Quadruple;
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39 import edu.stanford.smi.protegex.owl.model.impl.DefaultRDFProperty;
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40 import edu.stanford.smi.protege.model.DefaultCls;
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41 /**
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42 * @author dwinter
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43 *
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44 * Edit an Entity defined by OWL modell
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45 */
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46 public class Editor extends ServerResource {
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47
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48 private String NAMED_ENTITIES_ONTOLOGIE_URL = "http://ontologies.mpiwg-berlin.mpg.de/authorities/namedIdentities";
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49 private String VIRTUOSO_PW;
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50 private String VIRTUOSO_USER;
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51 private String virtuoso_server_url;
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52 private String TRIPLE_INDEX_PATH;
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53 private Logger rl = Logger.getRootLogger();
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54 private MetaDataHandler mh;
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55 private TripleStoreHandler th;
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56 private String editGraph="file:///personEdits.rdf";
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57
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58
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59 public Editor (){
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60 ChildContext context = (ChildContext)Context.getCurrent();
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61 virtuoso_server_url = context.getParameters().getFirstValue("de.mpwig.itgroup.personSearch.virtuoso.url");
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62 VIRTUOSO_PW = context.getParameters().getFirstValue("de.mpwig.itgroup.personSearch.virtuoso.pw");
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63 VIRTUOSO_USER = context.getParameters().getFirstValue("de.mpwig.itgroup.personSearch.virtuoso.user");
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64 rl.setLevel(Level.DEBUG);
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65 try {
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66 th = TripleStoreHandler.getInstance(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
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67
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68 //th = new TripleStoreHandler(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
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69 } catch (TripleStoreHandlerException e) {
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70 // TODO Auto-generated catch block
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71 e.printStackTrace();
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72 }
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73
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74 mh = MetaDataHandler.getInstance();
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75 }
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76
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77 public Editor(String serverUrl,String User, String PW){
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78 virtuoso_server_url = serverUrl;
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79 VIRTUOSO_PW = PW;
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80 VIRTUOSO_USER = User;
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81
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82 try {
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83 th = TripleStoreHandler.getInstance(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
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84 //th = new TripleStoreHandler(virtuoso_server_url, VIRTUOSO_USER, VIRTUOSO_PW);
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85 } catch (TripleStoreHandlerException e) {
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86 // TODO Auto-generated catch block
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87 e.printStackTrace();
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88 }
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89
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90 mh = MetaDataHandler.getInstance();
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91 }
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92 /**
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93 * Hole alle Properties eines Instance wie definiert in OWL.
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94 * @param instance
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95 * @return
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96 */
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97 private HashMap<String, Object> getProperties(String instance, List<String> NSFilter){
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98 RepositoryResult<Statement> stmts;
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99 HashMap<String, Object> retMap = new HashMap<String, Object>();
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100 try {
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101 stmts= th.getStatements(instance, "http://www.w3.org/1999/02/22-rdf-syntax-ns#type", null);
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102 } catch (RepositoryException e) {
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103 // TODO Auto-generated catch block
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104 e.printStackTrace();
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105 return null;
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106 }
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107 try {
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108 while(stmts.hasNext()){
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109 Statement stmt = stmts.next();
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110 addPropsOfType(retMap,stmt.getObject().stringValue(),instance, NSFilter);
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111 }
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112 } catch (RepositoryException e) {
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113 // TODO Auto-generated catch block
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114 e.printStackTrace();
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115 return null;
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116 }
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117
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118
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119 return retMap;
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120 }
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121 private void addPropsOfType(HashMap<String, Object> retMap,
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122 String cls, String instance, List<String> NSfilter) {
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123
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124 // Set props = mh.getAssociatedPropsForClass(cls);
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125 // Iterator propsIt = props.iterator();
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126 // while (propsIt.hasNext()){
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127 // Object prop = propsIt.next();
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128 //
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129 //
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130 // }
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131 Collection props = mh.getAssociatedPropsForClass(cls);
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132
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133 // filter namespaces
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134 if (NSfilter!=null){
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135
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136 Object[] propsCopy = props.toArray();
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137 for (Object prop:propsCopy){
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138 if (DefaultRDFProperty.class.isInstance(prop)){
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139 DefaultRDFProperty rdfProp = (DefaultRDFProperty)prop;
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140 rl.debug(rdfProp.getNamespace());
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141 if (!NSfilter.contains(rdfProp.getNamespace())){ // nicht im filter
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142 props.remove(prop);
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143 }
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144 }
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145 }
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146 }
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147
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148 Map<String, Object> newProps;
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149 try {
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150 newProps = th.getJenaRDFValues(props, instance, mh.getOwlModel(),true);
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151 } catch (RepositoryException e) {
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152 // TODO Auto-generated catch block
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153 e.printStackTrace();
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154 return;
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155 }
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156
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157 retMap.putAll(newProps);
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158
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159
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160 }
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161
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162 @Post
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163 public Representation postHTML(Representation entity){
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164 User user = handleBasicAuthentification(entity);
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165 if (user==null){
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166 setStatus(Status.CLIENT_ERROR_UNAUTHORIZED);
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167 return null;
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168 }
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169
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170 Form form = new Form(entity);
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171
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172 String id = form.getFirstValue("id");
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173 if (id==null){
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174 setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
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175 return new StringRepresentation("Parameter ID missing");
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176 }
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177
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178 String type = form.getFirstValue("type");
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179 if (type==null){
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180 setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
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181 return new StringRepresentation("Parameter type missing");
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182 }
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183
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184
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185 ArrayList<Quadruple> quads = new ArrayList<Quadruple>();
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186 ArrayList<Quadruple> deleteQuads = new ArrayList<Quadruple>();
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187 Map<String,String> formMap = form.getValuesMap();
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188 for (String key: formMap.keySet()){
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189 if (isDataTypeProperty(key,type)){
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190 String value=formMap.get(key);
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191
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192 //remove white space
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193 value=StringUtils.stripEnd(value, null);
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194 value=StringUtils.stripStart(value, null);
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195
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196 if (value!=null && !value.equals("")){ //not empty
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197 deleteQuads.add(new LiteralQuadruple(id, key, null, editGraph));
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198 quads.add(new LiteralQuadruple(id, key, formMap.get(key), editGraph));
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199 }
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200 }
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201 }
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202 try {
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203 th.remove(deleteQuads);
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204 th.write(quads);
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205 } catch (RepositoryException e) {
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206 setStatus(Status.SERVER_ERROR_INTERNAL);
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207 e.printStackTrace();
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208 return null;
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209 } catch (TripleStoreHandlerException e) {
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210 setStatus(Status.SERVER_ERROR_INTERNAL);
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211 e.printStackTrace();
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212 return null;
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213 }
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214
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215 return new StringRepresentation("written");
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216
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217 }
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218
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219 /**
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220 * Checks if the
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221 * @param key
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222 * @param value
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223 * @return
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224 */
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225 private boolean isDataTypeProperty(String key,String type) {
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226
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227
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228 Collection props = mh.getAssociatedPropsForClass(type);
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229
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230
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231 Object[] propsCopy = props.toArray();
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232 for (Object prop:propsCopy){
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233 if (DefaultRDFProperty.class.isInstance(prop)){
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234 DefaultRDFProperty rdfProp = (DefaultRDFProperty)prop;
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235 rl.debug(rdfProp.getNamespace());
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236 if (rdfProp.getName().equals(key)){
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237 rl.debug(rdfProp);
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238 return true;
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239 }
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240 }
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241 }
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242 return false;
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243 }
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244
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245
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246 @Get("html")
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247 public Representation getHTML(Representation entity){
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248 Form form = getRequest().getResourceRef().getQueryAsForm();
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249
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250
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251 String id =form.getValuesMap().get("id");
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252 try {
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253 id = URLDecoder.decode(id, "utf-8");
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254 } catch (UnsupportedEncodingException e) {
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255 e.printStackTrace();
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256 e.printStackTrace();
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257 setStatus(Status.SERVER_ERROR_INTERNAL, "REPOSITORY ERROR");
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258 return new StringRepresentation(
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259 "<xml><error>Unsupported encoding</error></xml>",
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260 MediaType.TEXT_HTML);
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261
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262 }
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263 id=StringUtils.stripEnd(id, null);
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264 id=StringUtils.stripStart(id, null);
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265
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266 ArrayList<String> NSFilter = new ArrayList<String>();
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267 NSFilter.add("http://xmlns.com/foaf/0.1/"); // only foaf
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268 HashMap<String, Object> props = getProperties(id, NSFilter);
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269
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270
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271 ArrayList<String> NSFilterRDF = new ArrayList<String>();
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272 NSFilterRDF.add("http://www.w3.org/1999/02/22-rdf-syntax-ns#"); // only foaf
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273 HashMap<String, Object> propsRDF = getProperties(id, NSFilterRDF);
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274
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275 String RDFtype = ((DefaultCls)(propsRDF.get("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"))).getName();
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276
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277
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278 String retString="<html><body><form method=\"post\" class=\"editEntity\">";
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279 retString+=String.format("<input type=\"hidden\" name=\"id\" value=\"%s\" len=\"50\">", id);
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280 retString+=String.format("<input type=\"hidden\" name=\"type\" value=\"%s\" len=\"50\">", RDFtype);
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281 for (String prop: props.keySet()){
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282
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283 retString+=String.format("<div class=\"labelEntity\">%s<input type=\"text\" name=\"%s\" value=\"%s\" len=\"50\"></div>",
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284 prop,prop,String.valueOf(props.get(prop)));
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285 }
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286
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287 retString+="<input type=\"submit\"/>";
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288 retString+="</form></body></html>";
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289 return new StringRepresentation(retString,MediaType.TEXT_HTML);
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290
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291 }
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292
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293
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294 private User handleBasicAuthentification(Representation entity) {
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295 RestServer restServer = (RestServer) getApplication();
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296 if (!restServer.authenticate(getRequest(), getResponse())) {
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297 // Not authenticated
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298 return null;
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299 }
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300
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301 ClientInfo ci = getRequest().getClientInfo();
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302 rl.debug(ci);
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303 return getRequest().getClientInfo().getUser();
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304
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305 }
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306
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307 public static void main(String args[]) {
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308 Logger.getRootLogger().setLevel(Level.DEBUG);
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309 Editor ed = new Editor("jdbc:virtuoso://virtuoso.mpiwg-berlin.mpg.de:1111","dba","wa55er");
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310 ArrayList<String> NSFilter = new ArrayList<String>();
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311 NSFilter.add("http://xmlns.com/foaf/0.1/"); // only foaf
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312 HashMap<String, Object> props = ed.getProperties("http://ontologies.mpiwg-berlin.mpg.de/tempObjects/person/370868",NSFilter);
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313 System.out.println(props);
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314
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315 }
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316 }
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