Source Code Cross Referenced for JRXmlLoader.java in  » Report » jasperreports-2.0.1 » net » sf » jasperreports » engine » xml » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Report » jasperreports 2.0.1 » net.sf.jasperreports.engine.xml 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * ============================================================================
003:         * GNU Lesser General Public License
004:         * ============================================================================
005:         *
006:         * JasperReports - Free Java report-generating library.
007:         * Copyright (C) 2001-2006 JasperSoft Corporation http://www.jaspersoft.com
008:         * 
009:         * This library is free software; you can redistribute it and/or
010:         * modify it under the terms of the GNU Lesser General Public
011:         * License as published by the Free Software Foundation; either
012:         * version 2.1 of the License, or (at your option) any later version.
013:         * 
014:         * This library is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
017:         * Lesser General Public License for more details.
018:         * 
019:         * You should have received a copy of the GNU Lesser General Public
020:         * License along with this library; if not, write to the Free Software
021:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
022:         * 
023:         * JasperSoft Corporation
024:         * 303 Second Street, Suite 450 North
025:         * San Francisco, CA 94107
026:         * http://www.jaspersoft.com
027:         */
028:
029:        /*
030:         * Contributors:
031:         * Artur Biesiadowski - abies@users.sourceforge.net 
032:         */
033:        package net.sf.jasperreports.engine.xml;
034:
035:        import java.io.File;
036:        import java.io.FileInputStream;
037:        import java.io.IOException;
038:        import java.io.InputStream;
039:        import java.util.ArrayList;
040:        import java.util.Collection;
041:        import java.util.HashSet;
042:        import java.util.Iterator;
043:        import java.util.List;
044:        import java.util.Map;
045:        import java.util.Set;
046:
047:        import javax.xml.parsers.ParserConfigurationException;
048:
049:        import net.sf.jasperreports.engine.JRDatasetRun;
050:        import net.sf.jasperreports.engine.JRException;
051:        import net.sf.jasperreports.engine.JRGroup;
052:        import net.sf.jasperreports.engine.JRVariable;
053:        import net.sf.jasperreports.engine.design.JRDesignChart;
054:        import net.sf.jasperreports.engine.design.JRDesignDataset;
055:        import net.sf.jasperreports.engine.design.JRDesignElement;
056:        import net.sf.jasperreports.engine.design.JRDesignElementDataset;
057:        import net.sf.jasperreports.engine.design.JRDesignImage;
058:        import net.sf.jasperreports.engine.design.JRDesignTextField;
059:        import net.sf.jasperreports.engine.design.JRDesignVariable;
060:        import net.sf.jasperreports.engine.design.JRValidationException;
061:        import net.sf.jasperreports.engine.design.JasperDesign;
062:
063:        import org.apache.commons.digester.Digester;
064:        import org.xml.sax.InputSource;
065:        import org.xml.sax.SAXException;
066:
067:        /**
068:         * @author Teodor Danciu (teodord@users.sourceforge.net)
069:         * @version $Id: JRXmlLoader.java 1625 2007-03-09 17:21:31Z lucianc $
070:         */
071:        public class JRXmlLoader {
072:
073:            /**
074:             *
075:             */
076:            private JasperDesign jasperDesign = null;
077:            private Collection groupReprintedElements = new ArrayList();
078:            private Collection groupEvaluatedImages = new ArrayList();
079:            private Collection groupEvaluatedTextFields = new ArrayList();
080:            private Collection groupEvaluatedCharts = new ArrayList();
081:            private Set groupBoundDatasets = new HashSet();
082:            private List errors = new ArrayList();
083:
084:            private Digester digester = null;
085:
086:            private boolean ignoreConsistencyProblems;
087:
088:            /**
089:             *
090:             */
091:            public JRXmlLoader(Digester digester) {
092:                this .digester = digester;
093:            }
094:
095:            /**
096:             *
097:             */
098:            public void setJasperDesign(JasperDesign jasperDesign) {
099:                this .jasperDesign = jasperDesign;
100:            }
101:
102:            /**
103:             *
104:             */
105:            public Collection getGroupReprintedElements() {
106:                return this .groupReprintedElements;
107:            }
108:
109:            /**
110:             *
111:             */
112:            public Collection getGroupEvaluatedImages() {
113:                return this .groupEvaluatedImages;
114:            }
115:
116:            /**
117:             *
118:             */
119:            public Collection getGroupEvaluatedTextFields() {
120:                return this .groupEvaluatedTextFields;
121:            }
122:
123:            /**
124:             *
125:             */
126:            public Collection getGroupEvaluatedCharts() {
127:                return groupEvaluatedCharts;
128:            }
129:
130:            /**
131:             *
132:             */
133:            public Set getGroupBoundDatasets() {
134:                return groupBoundDatasets;
135:            }
136:
137:            /**
138:             *
139:             */
140:            public static JasperDesign load(String sourceFileName)
141:                    throws JRException {
142:                return load(new File(sourceFileName));
143:            }
144:
145:            /**
146:             *
147:             */
148:            public static JasperDesign load(File file) throws JRException {
149:                JasperDesign jasperDesign = null;
150:
151:                FileInputStream fis = null;
152:
153:                try {
154:                    fis = new FileInputStream(file);
155:                    jasperDesign = JRXmlLoader.load(fis);
156:                } catch (IOException e) {
157:                    throw new JRException(e);
158:                } finally {
159:                    if (fis != null) {
160:                        try {
161:                            fis.close();
162:                        } catch (IOException e) {
163:                        }
164:                    }
165:                }
166:
167:                return jasperDesign;
168:            }
169:
170:            /**
171:             *
172:             */
173:            public static JasperDesign load(InputStream is) throws JRException {
174:                JasperDesign jasperDesign = null;
175:
176:                JRXmlLoader xmlLoader = null;
177:
178:                try {
179:                    xmlLoader = new JRXmlLoader(JRXmlDigesterFactory
180:                            .createDigester());
181:                } catch (ParserConfigurationException e) {
182:                    throw new JRException(e);
183:                } catch (SAXException e) {
184:                    throw new JRException(e);
185:                }
186:
187:                jasperDesign = xmlLoader.loadXML(is);
188:
189:                return jasperDesign;
190:            }
191:
192:            /**
193:             *
194:             */
195:            public JasperDesign loadXML(InputStream is) throws JRException {
196:                return loadXML(new InputSource(is));
197:            }
198:
199:            /**
200:             *
201:             */
202:            public JasperDesign loadXML(InputSource is) throws JRException {
203:                try {
204:                    digester.push(this );
205:
206:                    /*   */
207:                    digester.parse(is);
208:                } catch (SAXException e) {
209:                    throw new JRException(e);
210:                } catch (IOException e) {
211:                    throw new JRException(e);
212:                } finally {
213:                    digester.clear();
214:                }
215:
216:                if (errors.size() > 0) {
217:                    Exception e = (Exception) errors.get(0);
218:                    if (e instanceof  JRException) {
219:                        throw (JRException) e;
220:                    }
221:                    throw new JRException(e);
222:                }
223:
224:                /*   */
225:                assignGroupsToVariables(jasperDesign.getMainDesignDataset());
226:                for (Iterator it = jasperDesign.getDatasetsList().iterator(); it
227:                        .hasNext();) {
228:                    JRDesignDataset dataset = (JRDesignDataset) it.next();
229:                    assignGroupsToVariables(dataset);
230:                }
231:
232:                this .assignGroupsToElements();
233:                this .assignGroupsToImages();
234:                this .assignGroupsToTextFields();
235:                this .assignGroupsToCharts();
236:                this .assignGroupsToDatasets();
237:
238:                return this .jasperDesign;
239:            }
240:
241:            /**
242:             *
243:             */
244:            private void assignGroupsToVariables(JRDesignDataset dataset)
245:                    throws JRException {
246:                JRVariable[] variables = dataset.getVariables();
247:                if (variables != null && variables.length > 0) {
248:                    Map groupsMap = dataset.getGroupsMap();
249:                    for (int i = 0; i < variables.length; i++) {
250:                        JRDesignVariable variable = (JRDesignVariable) variables[i];
251:                        if (variable.getResetType() == JRVariable.RESET_TYPE_GROUP) {
252:                            String groupName = null;
253:                            JRGroup group = variable.getResetGroup();
254:                            if (group != null) {
255:                                groupName = group.getName();
256:                                group = (JRGroup) groupsMap.get(groupName);
257:                            }
258:
259:                            if (!ignoreConsistencyProblems && group == null) {
260:                                throw new JRValidationException(
261:                                        "Unknown reset group '" + groupName
262:                                                + "' for variable : "
263:                                                + variable.getName(), variable);
264:                            }
265:
266:                            variable.setResetGroup(group);
267:                        } else {
268:                            variable.setResetGroup(null);
269:                        }
270:
271:                        if (variable.getIncrementType() == JRVariable.RESET_TYPE_GROUP) {
272:                            String groupName = null;
273:                            JRGroup group = variable.getIncrementGroup();
274:                            if (group != null) {
275:                                groupName = group.getName();
276:                                group = (JRGroup) groupsMap.get(groupName);
277:                            }
278:
279:                            if (!ignoreConsistencyProblems && group == null) {
280:                                throw new JRValidationException(
281:                                        "Unknown increment group '" + groupName
282:                                                + "' for variable : "
283:                                                + variable.getName(), variable);
284:                            }
285:
286:                            variable.setIncrementGroup(group);
287:                        } else {
288:                            variable.setIncrementGroup(null);
289:                        }
290:                    }
291:                }
292:            }
293:
294:            /**
295:             *
296:             */
297:            private void assignGroupsToElements() throws JRException {
298:                Map groupsMap = jasperDesign.getGroupsMap();
299:                for (Iterator it = groupReprintedElements.iterator(); it
300:                        .hasNext();) {
301:                    JRDesignElement element = (JRDesignElement) it.next();
302:
303:                    String groupName = null;
304:                    JRGroup group = element.getPrintWhenGroupChanges();
305:                    if (group != null) {
306:                        groupName = group.getName();
307:                        group = (JRGroup) groupsMap.get(group.getName());
308:                    }
309:
310:                    if (!ignoreConsistencyProblems && group == null) {
311:                        throw new JRValidationException(
312:                                "Unknown reprint group '" + groupName
313:                                        + "' for element.", element);
314:                    }
315:
316:                    element.setPrintWhenGroupChanges(group);
317:                }
318:            }
319:
320:            /**
321:             *
322:             */
323:            private void assignGroupsToImages() throws JRException {
324:                Map groupsMap = jasperDesign.getGroupsMap();
325:                for (Iterator it = groupEvaluatedImages.iterator(); it
326:                        .hasNext();) {
327:                    JRDesignImage image = (JRDesignImage) it.next();
328:
329:                    String groupName = null;
330:                    JRGroup group = image.getEvaluationGroup();
331:                    if (group != null) {
332:                        groupName = group.getName();
333:                        group = (JRGroup) groupsMap.get(group.getName());
334:                    }
335:
336:                    if (!ignoreConsistencyProblems && group == null) {
337:                        throw new JRValidationException(
338:                                "Unknown evaluation group '" + groupName
339:                                        + "' for image.", image);
340:                    }
341:
342:                    image.setEvaluationGroup(group);
343:                }
344:            }
345:
346:            /**
347:             *
348:             */
349:            private void assignGroupsToTextFields() throws JRException {
350:                Map groupsMap = jasperDesign.getGroupsMap();
351:                for (Iterator it = groupEvaluatedTextFields.iterator(); it
352:                        .hasNext();) {
353:                    JRDesignTextField textField = (JRDesignTextField) it.next();
354:
355:                    String groupName = null;
356:                    JRGroup group = textField.getEvaluationGroup();
357:                    if (group != null) {
358:                        groupName = group.getName();
359:                        group = (JRGroup) groupsMap.get(group.getName());
360:                    }
361:
362:                    if (!ignoreConsistencyProblems && group == null) {
363:                        throw new JRValidationException(
364:                                "Unknown evaluation group '" + groupName
365:                                        + "' for text field.", textField);
366:                    }
367:
368:                    textField.setEvaluationGroup(group);
369:                }
370:            }
371:
372:            /**
373:             *
374:             */
375:            private void assignGroupsToCharts() throws JRException {
376:                Map groupsMap = jasperDesign.getGroupsMap();
377:                for (Iterator it = groupEvaluatedCharts.iterator(); it
378:                        .hasNext();) {
379:                    JRDesignChart chart = (JRDesignChart) it.next();
380:
381:                    String groupName = null;
382:                    JRGroup group = chart.getEvaluationGroup();
383:                    if (group != null) {
384:                        groupName = group.getName();
385:                        group = (JRGroup) groupsMap.get(group.getName());
386:                    }
387:
388:                    if (!ignoreConsistencyProblems && group == null) {
389:                        throw new JRValidationException(
390:                                "Unknown evaluation group '" + groupName
391:                                        + "' for chart.", chart);
392:                    }
393:
394:                    chart.setEvaluationGroup(group);
395:                }
396:            }
397:
398:            /**
399:             *
400:             */
401:            private void assignGroupsToDatasets() throws JRException {
402:                for (Iterator it = groupBoundDatasets.iterator(); it.hasNext();) {
403:                    JRDesignElementDataset dataset = (JRDesignElementDataset) it
404:                            .next();
405:
406:                    JRDatasetRun datasetRun = dataset.getDatasetRun();
407:                    Map groupsMap;
408:                    if (datasetRun == null) {
409:                        groupsMap = jasperDesign.getGroupsMap();
410:                    } else {
411:                        Map datasetMap = jasperDesign.getDatasetMap();
412:                        String datasetName = datasetRun.getDatasetName();
413:                        JRDesignDataset subDataset = (JRDesignDataset) datasetMap
414:                                .get(datasetName);
415:                        if (subDataset == null) {
416:                            throw new JRException("Unknown sub dataset '"
417:                                    + datasetName + "' for chart dataset.");
418:                        }
419:                        groupsMap = subDataset.getGroupsMap();
420:                    }
421:
422:                    if (dataset.getIncrementType() == JRVariable.RESET_TYPE_GROUP) {
423:                        String groupName = null;
424:                        JRGroup group = dataset.getIncrementGroup();
425:                        if (group != null) {
426:                            groupName = group.getName();
427:                            group = (JRGroup) groupsMap.get(group.getName());
428:                        }
429:
430:                        if (!ignoreConsistencyProblems && group == null) {
431:                            throw new JRValidationException(
432:                                    "Unknown increment group '" + groupName
433:                                            + "' for chart dataset.", dataset);
434:                        }
435:
436:                        dataset.setIncrementGroup(group);
437:                    } else {
438:                        dataset.setIncrementGroup(null);
439:                    }
440:
441:                    if (dataset.getResetType() == JRVariable.RESET_TYPE_GROUP) {
442:                        String groupName = null;
443:                        JRGroup group = dataset.getResetGroup();
444:                        if (group != null) {
445:                            groupName = group.getName();
446:                            group = (JRGroup) groupsMap.get(group.getName());
447:                        }
448:
449:                        if (!ignoreConsistencyProblems && group == null) {
450:                            throw new JRValidationException(
451:                                    "Unknown reset group '" + groupName
452:                                            + "' for chart dataset.", dataset);
453:                        }
454:
455:                        dataset.setResetGroup(group);
456:                    } else {
457:                        dataset.setResetGroup(null);
458:                    }
459:                }
460:            }
461:
462:            /**
463:             *
464:             */
465:            public void addError(Exception e) {
466:                if (!ignoreConsistencyProblems)
467:                    this .errors.add(e);
468:            }
469:
470:            /**
471:             * Returns true if the loader is set to ignore consistency problems
472:             * @return the ignoreConsistencyProblems flag.
473:             */
474:            public boolean isIgnoreConsistencyProblems() {
475:                return ignoreConsistencyProblems;
476:            }
477:
478:            /**
479:             * Allows to enable or disable the reporting of consistency problems. Consistency 
480:             * problems are problems in the logical structure of the report such as references
481:             * to missing groups and fonts.
482:             * 
483:             * @param ignoreConsistencyProblems The ignoreConsistencyProblems value to set.
484:             */
485:            public void setIgnoreConsistencyProblems(
486:                    boolean ignoreConsistencyProblems) {
487:                this.ignoreConsistencyProblems = ignoreConsistencyProblems;
488:            }
489:
490:        }
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