Source Code Cross Referenced for Validator.java in  » GIS » GeoTools-2.4.1 » org » geotools » validation » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.validation 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2004-2006, Geotools Project Managment Committee (PMC)
005:         *    (C) 2004 TOPP - www.openplans.org
006:         *
007:         *    This library is free software; you can redistribute it and/or
008:         *    modify it under the terms of the GNU Lesser General Public
009:         *    License as published by the Free Software Foundation; either
010:         *    version 2.1 of the License, or (at your option) any later version.
011:         *
012:         *    This library is distributed in the hope that it will be useful,
013:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
014:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015:         *    Lesser General Public License for more details.
016:         *
017:         *    Created on Jun 25, 2004
018:         */
019:        package org.geotools.validation;
020:
021:        import java.io.IOException;
022:        import java.util.HashMap;
023:        import java.util.HashSet;
024:        import java.util.Iterator;
025:        import java.util.Map;
026:        import java.util.Set;
027:        import java.util.TreeMap;
028:        import java.util.logging.Logger;
029:
030:        import org.geotools.data.DataSourceException;
031:        import org.geotools.feature.FeatureIterator;
032:        import org.geotools.data.FeatureSource;
033:        import org.geotools.data.Repository;
034:        import org.geotools.feature.Feature;
035:        import org.geotools.feature.FeatureCollection;
036:        import org.geotools.feature.FeatureType;
037:
038:        import com.vividsolutions.jts.geom.Envelope;
039:
040:        /**
041:         * Validator<br>
042:         * @author bowens<br>
043:         * Created Jun 25, 2004<br>
044:         * @source $URL: http://svn.geotools.org/geotools/tags/2.4.1/modules/extension/validation/src/main/java/org/geotools/validation/Validator.java $
045:         * @version <br>
046:         * 
047:         * <b>Puropse:</b><br>
048:         * <p>
049:         * Provides access to feature validation and integrity validation.<br>
050:         * 
051:         * 
052:         * </p>
053:         * 
054:         * <b>Description:</b><br>
055:         * <p>
056:         * Feature validation will iterate over a feature features and test all features
057:         * that have a validation test specific to them in the validation processor
058:         * passed in.<br>
059:         * 
060:         * Integrity validation will iterate over all data stores passed in through the
061:         * stores map and run the tests associated with each store.
062:         * </p>
063:         * 
064:         * <b>Usage:</b><br>
065:         * <p>
066:         * DOCUMENT ME!!
067:         * </p>
068:         */
069:        public class Validator {
070:            /** Standard logging instance for class */
071:            private static final Logger LOGGER = org.geotools.util.logging.Logging
072:                    .getLogger("org.vfny.geoserver.responses");
073:
074:            private ValidationProcessor validationProcessor;
075:
076:            private Repository repository;
077:
078:            /**
079:             * Validator Constructor
080:             * 
081:             */
082:            public Validator(Repository repository,
083:                    ValidationProcessor processor) {
084:                this .repository = repository;
085:                validationProcessor = processor;//new ValidationProcessor();
086:            }
087:
088:            /**
089:             * <b>featureValidation Purpose:</b> <br>
090:             * <p>
091:             * DOCUMENT ME!!
092:             * </p>
093:             * 
094:             * <b>Description:</b><br>
095:             * <p>
096:             * Feature validation will iterate over a feature features and test all features
097:             * that have a validation test specific to them in the validation processor
098:             * passed in.
099:             * </p>
100:             * 
101:             * Author: bowens<br>
102:             * Created on: Jun 25, 2004<br>
103:             * @param dsid
104:             * @param features
105:             * @throws IOException
106:             * @throws Exception
107:             */
108:            public void featureValidation(String dsid,
109:                    FeatureCollection features, ValidationResults results)
110:                    throws IOException, Exception//, WfsTransactionException 
111:            {
112:                //LOGGER.finer("FeatureValidation called on "+dsid+":"+type.getTypeName() ); 
113:
114:                if (validationProcessor == null) {
115:                    LOGGER.warning("ValidationProcessor unavailable");
116:                    return;
117:                }
118:
119:                FeatureType type = features.getFeatureType();
120:
121:                final Map failed = new TreeMap();
122:
123:                /** Set up our validation results */
124:                try {
125:                    validationProcessor
126:                            .runFeatureTests(dsid, features, results);
127:                } catch (Exception badIdea) {
128:                    // ValidationResults should have handled stuff, will redesign :-)
129:                    throw new DataSourceException("Validation Failed", badIdea);
130:                }
131:            }
132:
133:            /**
134:             * <b>getFeatureValidationResults Purpose:</b> <br>
135:             * <p>
136:             * DOCUMENT ME!!
137:             * </p>
138:             * 
139:             * <b>Description:</b><br>
140:             * <p>
141:             * DOCUMENT ME!!
142:             * </p>
143:             * 
144:             * Author: bowens<br>
145:             * Created on: Jun 26, 2004<br>
146:             * @param failed
147:             */
148:            private ValidationResults makeFeatureValidationResults(
149:                    final Map failed) {
150:                ValidationResults results = new ValidationResults() {
151:                    String name;
152:                    String description;
153:
154:                    public void setValidation(Validation validation) {
155:                        name = validation.getName();
156:                        description = validation.getDescription();
157:                    }
158:
159:                    public void error(Feature feature, String message) {
160:                        LOGGER.warning(name + ": " + message + " ("
161:                                + description + ")");
162:                        failed.put(feature.getID(), name + ": " + message + " "
163:                                + "(" + description + ")");
164:                    }
165:
166:                    public void warning(Feature feature, String message) {
167:                        LOGGER.warning(name + ": " + message + " ("
168:                                + description + ")");
169:                    }
170:                };
171:                return results;
172:            }
173:
174:            /**
175:             * <b>integrityValidation Purpose:</b> <br>
176:             * <p>
177:             * DOCUMENT ME!!
178:             * </p>
179:             * 
180:             * <b>Description:</b><br>
181:             * <p>
182:             * Integrity validation will iterate over all data stores passed in through the
183:             * stores map and run the tests associated with each store.
184:             * </p>
185:             * 
186:             * Author: bowens<br>
187:             * Created on: Jun 26, 2004<br>
188:             * @param featureStores Map of required FeatureStores by typeRef (dataStoreId:typeName)
189:             * @param bBox
190:             * @throws IOException
191:             * @throws Exception
192:             */
193:            public void integrityValidation(Map featureStores, Envelope bBox,
194:                    ValidationResults results) throws IOException, Exception// WfsTransactionException 
195:            {
196:                //Data catalog = request.getWFS().getData();
197:                //ValidationProcessor validation = request.getValidationProcessor();
198:                if (validationProcessor == null) {
199:                    LOGGER.warning("Validation Processor unavaialble");
200:                    return;
201:                }
202:                LOGGER.finer("Required to validate " + featureStores.size()
203:                        + " typeRefs");
204:                LOGGER.finer("within " + bBox);
205:
206:                // go through each typeName passed in through stores
207:                // and ask what we need to check
208:                Set typeRefs = new HashSet();
209:                for (Iterator i = featureStores.keySet().iterator(); i
210:                        .hasNext();) {
211:                    String typeRef = (String) i.next();
212:                    typeRefs.add(typeRef);
213:
214:                    Set dependencies = validationProcessor
215:                            .getDependencies(typeRef);
216:                    LOGGER.finer("typeRef " + typeRef + " requires "
217:                            + dependencies);
218:                    if (dependencies != null && dependencies.size() > 0)
219:                        typeRefs.addAll(dependencies);
220:                }
221:
222:                // Grab a source for each typeName we need to check
223:                // Grab from the provided stores - so we check against
224:                // the transaction 
225:                //
226:                Map sources = new HashMap();
227:
228:                for (Iterator i = typeRefs.iterator(); i.hasNext();) {
229:                    String typeRef = (String) i.next();
230:                    LOGGER.finer("Searching for required typeRef: " + typeRef);
231:
232:                    /** This checks to see if we have already loaded in any feature stores.
233:                     * They can be loaded already if we are in a transaction operation. If
234:                     * this is for the "do it" button, there will be no feature stores
235:                     * already loaded and thus we always hit the 'else' statement.*/
236:                    if (featureStores.containsKey(typeRef)) // if it was passed in through stores
237:                    {
238:                        LOGGER.finer(" found required typeRef: " + typeRef
239:                                + " (it was already loaded)");
240:                        sources.put(typeRef, featureStores.get(typeRef));
241:                    } else // if we have to go get it (ie. it is a dependant for a test)
242:                    {
243:                        // These will be using Transaction.AUTO_COMMIT
244:                        // this is okay as they were not involved in our
245:                        // Transaction...
246:                        LOGGER.finer(" could not find typeRef: " + typeRef
247:                                + " (we will now load it)");
248:                        String split[] = typeRef.split(":");
249:                        String dataStoreId = split[0];
250:                        String typeName = split[1];
251:                        LOGGER.finer(" going to look for dataStoreId:"
252:                                + dataStoreId + " and typeName:" + typeName);
253:
254:                        // FeatureTypeInfo meta = catalog.getFeatureTypeInfo(typeName);
255:                        LOGGER.finer(" loaded required typeRef: " + typeRef);
256:                        FeatureSource source = repository.source(dataStoreId,
257:                                typeName);
258:                        sources.put(typeRef, source);
259:                    }
260:                }
261:                LOGGER.finer("Total of " + sources.size()
262:                        + " featureSource marshalled for testing");
263:                final Map failed = new TreeMap();
264:
265:                try {
266:                    //should never be null, but confDemo is giving grief, and I 
267:                    //don't want transactions to mess up just because validation 
268:                    //stuff is messed up. ch
269:                    LOGGER
270:                            .finer("Runing integrity tests using validation validationProcessor ");
271:                    validationProcessor.runIntegrityTests(featureStores
272:                            .keySet(), sources, bBox, results);
273:                } catch (Exception badIdea) {
274:                    badIdea.printStackTrace();
275:                    // ValidationResults should of handled stuff will redesign :-)
276:                    throw new DataSourceException("Validation Failed", badIdea);
277:                }
278:                if (failed.isEmpty()) {
279:                    LOGGER.finer("All validation tests passed");
280:                    return; // everything worked out
281:                }
282:
283:                /** One or more of the tests failed if we reached here, so dump out
284:                 * the information from teh tests that failed. */
285:                LOGGER
286:                        .finer("Validation fail - marshal result for transaction document");
287:                StringBuffer message = new StringBuffer();
288:                for (Iterator i = failed.entrySet().iterator(); i.hasNext();) {
289:                    Map.Entry entry = (Map.Entry) i.next();
290:                    message.append(entry.getKey());
291:                    message.append(" failed test ");
292:                    message.append(entry.getValue());
293:                    message.append("\n");
294:                }
295:                //throw new Exception("Validation - " + message.toString());
296:                //throw new WfsTransactionException(message.toString(), "validation");
297:            }
298:
299:            /**
300:             * <b>getIntegrityValidationResults Purpose:</b> <br>
301:             * <p>
302:             * Gets the validation results for Integrity tests.
303:             * </p>
304:             * 
305:             * <b>Description:</b><br>
306:             * <p>
307:             * DOCUMENT ME!!
308:             * </p>
309:             * 
310:             * Author: bowens<br>
311:             * Created on: Jun 26, 2004<br>
312:             * @param failed the map of failed features
313:             */
314:            private ValidationResults makeIntegrityValidationResults(
315:                    final Map failed) {
316:                ValidationResults results = new ValidationResults() {
317:                    String name;
318:                    String description;
319:
320:                    public void setValidation(Validation validation) {
321:                        name = validation.getName();
322:                        description = validation.getDescription();
323:                    }
324:
325:                    public void error(Feature feature, String message) {
326:                        LOGGER.warning(name + ": " + message + " ("
327:                                + description + ")");
328:                        if (feature == null) {
329:                            failed.put("ALL", name + ": " + message + " " + "("
330:                                    + description + ")");
331:                        } else {
332:                            failed.put(feature.getID(), name + ": " + message
333:                                    + " " + "(" + description + ")");
334:                        }
335:                    }
336:
337:                    public void warning(Feature feature, String message) {
338:                        LOGGER.warning(name + ": " + message + " ("
339:                                + description + ")");
340:                    }
341:                };
342:                return results;
343:            }
344:
345:        }
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