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/*******************************************************************************
* Copyright (c) 2004 - 2006 University Of British Columbia and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* University Of British Columbia - initial API and implementation
*******************************************************************************/
package org.eclipse.mylar.internal.bugzilla.core;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.mylar.internal.tasks.core.HtmlStreamTokenizer;
import org.eclipse.mylar.tasks.core.AbstractAttributeFactory;
import org.eclipse.mylar.tasks.core.TaskComment;
import org.eclipse.mylar.tasks.core.RepositoryAttachment;
import org.eclipse.mylar.tasks.core.RepositoryTaskAttribute;
import org.eclipse.mylar.tasks.core.RepositoryTaskData;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
/**
* Parser for xml bugzilla reports.
*
* @author Rob Elves
*/
public class SaxBugReportContentHandler extends DefaultHandler {
private static final String COMMENT_ATTACHMENT_STRING = "Created an attachment (id=";
private StringBuffer characters;
private TaskComment taskComment;
private final Map<Integer, TaskComment> attachIdToComment = new HashMap<Integer, TaskComment>();
private int commentNum = 0;
private RepositoryAttachment attachment;
private RepositoryTaskData report;
private String errorMessage = null;
private AbstractAttributeFactory attributeFactory;
public SaxBugReportContentHandler(AbstractAttributeFactory factory, RepositoryTaskData rpt) {
this.attributeFactory = factory;
this.report = rpt;
}
public boolean errorOccurred() {
return errorMessage != null;
}
public String getErrorMessage() {
return errorMessage;
}
public RepositoryTaskData getReport() {
return report;
}
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
characters.append(ch, start, length);
// if (monitor.isCanceled()) {
// throw new OperationCanceledException("Search cancelled");
// }
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
characters = new StringBuffer();
BugzillaReportElement tag = BugzillaReportElement.UNKNOWN;
try {
tag = BugzillaReportElement.valueOf(localName.trim().toUpperCase());
} catch (RuntimeException e) {
if (e instanceof IllegalArgumentException) {
// ignore unrecognized tags
return;
}
throw e;
}
switch (tag) {
case BUGZILLA:
// Note: here we can get the bugzilla version if necessary
break;
case BUG:
if (attributes != null && (attributes.getValue("error") != null)) {
errorMessage = attributes.getValue("error");
}
break;
case LONG_DESC:
taskComment = new TaskComment(attributeFactory, report, commentNum++);
break;
case ATTACHMENT:
attachment = new RepositoryAttachment(attributeFactory);
if (attributes != null) {
if ("1".equals(attributes.getValue(BugzillaReportElement.IS_OBSOLETE.getKeyString()))) {
attachment.addAttribute(BugzillaReportElement.IS_OBSOLETE.getKeyString(), attributeFactory
.createAttribute(BugzillaReportElement.IS_OBSOLETE.getKeyString()));
attachment.setObsolete(true);
}
if ("1".equals(attributes.getValue(BugzillaReportElement.IS_PATCH.getKeyString()))) {
attachment.setPatch(true);
}
}
break;
}
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
String parsedText = HtmlStreamTokenizer.unescape(characters.toString());
BugzillaReportElement tag = BugzillaReportElement.UNKNOWN;
try {
tag = BugzillaReportElement.valueOf(localName.trim().toUpperCase());
} catch (RuntimeException e) {
if (e instanceof IllegalArgumentException) {
// ignore unrecognized tags
return;
}
throw e;
}
switch (tag) {
case BUG_ID: {
try {
if (!report.getId().equals(parsedText)) {
errorMessage = "Requested report number does not match returned report number.";
}
} catch (Exception e) {
errorMessage = "Bug id from server did not match requested id.";
}
RepositoryTaskAttribute attr = report.getAttribute(tag.getKeyString());
if (attr == null) {
attr = attributeFactory.createAttribute(tag.getKeyString());
report.addAttribute(tag.getKeyString(), attr);
}
attr.setValue(parsedText);
break;
}
// Comment attributes
case WHO:
case BUG_WHEN:
if (taskComment != null) {
RepositoryTaskAttribute attr = attributeFactory.createAttribute(tag.getKeyString());
attr.setValue(parsedText);
taskComment.addAttribute(tag.getKeyString(), attr);
}
break;
case THETEXT:
if (taskComment != null) {
RepositoryTaskAttribute attr = attributeFactory.createAttribute(tag.getKeyString());
attr.setValue(parsedText);
taskComment.addAttribute(tag.getKeyString(), attr);
// Check for attachment
parseAttachment(taskComment, parsedText);
}
break;
case LONG_DESC:
if (taskComment != null) {
report.addComment(taskComment);
}
break;
// Attachment attributes
case ATTACHID:
case DATE:
case DESC:
case FILENAME:
case CTYPE:
case TYPE:
if (attachment != null) {
RepositoryTaskAttribute attr = attributeFactory.createAttribute(tag.getKeyString());
attr.setValue(parsedText);
attachment.addAttribute(tag.getKeyString(), attr);
}
break;
case DATA:
// TODO: Need to figure out under what circumstanceswhen attachments
// are inline and
// what to do with them.
// jpound - if data gets stored here, the attachment actions in the
// task editor
// should be updated to use this data instead of retrieving from
// server.
break;
case ATTACHMENT:
if (attachment != null) {
report.addAttachment(attachment);
}
break;
// IGNORED ELEMENTS
case REPORTER_ACCESSIBLE:
case CLASSIFICATION_ID:
case CLASSIFICATION:
case CCLIST_ACCESSIBLE:
case EVERCONFIRMED:
case BUGZILLA:
break;
case BUG:
// Reached end of bug. Need to set LONGDESCLENGTH to number of
// comments
RepositoryTaskAttribute numCommentsAttribute = report.getAttribute(BugzillaReportElement.LONGDESCLENGTH
.getKeyString());
if (numCommentsAttribute == null) {
numCommentsAttribute = attributeFactory.createAttribute(BugzillaReportElement.LONGDESCLENGTH
.getKeyString());
numCommentsAttribute.setValue("" + report.getComments().size());
report.addAttribute(BugzillaReportElement.LONGDESCLENGTH.getKeyString(), numCommentsAttribute);
} else {
numCommentsAttribute.setValue("" + report.getComments().size());
}
// Set the creator name on all attachments
for (RepositoryAttachment attachment : report.getAttachments()) {
TaskComment taskComment = (TaskComment) attachIdToComment.get(attachment.getId());
if (taskComment != null) {
attachment.setCreator(taskComment.getAuthor());
}
attachment.setAttributeValue(RepositoryTaskAttribute.ATTACHMENT_URL, report.getRepositoryUrl()+IBugzillaConstants.ATTACHMENT_URL_SUFFIX+attachment.getId());
}
break;
case BLOCKED:
case DEPENDSON:
RepositoryTaskAttribute dependancyAttribute = report.getAttribute(tag.getKeyString());
if (dependancyAttribute == null) {
dependancyAttribute = attributeFactory.createAttribute(tag.getKeyString());
dependancyAttribute.setValue(parsedText);
report.addAttribute(tag.getKeyString(), dependancyAttribute);
} else {
if(dependancyAttribute.getValue().equals("")) {
dependancyAttribute.setValue(parsedText);
} else {
dependancyAttribute.setValue(dependancyAttribute.getValue()+", "+parsedText);
}
}
break;
// All others added as report attribute
default:
RepositoryTaskAttribute attribute = report.getAttribute(tag.getKeyString());
if (attribute == null) {
attribute = attributeFactory.createAttribute(tag.getKeyString());
attribute.setValue(parsedText);
report.addAttribute(tag.getKeyString(), attribute);
} else {
attribute.addValue(parsedText);
}
break;
}
}
/** determines attachment id from comment */
private void parseAttachment(TaskComment taskComment, String commentText) {
int attachmentID = -1;
if (commentText.startsWith(COMMENT_ATTACHMENT_STRING)) {
try {
int endIndex = commentText.indexOf(")");
if (endIndex > 0 && endIndex < commentText.length()) {
attachmentID = Integer
.parseInt(commentText.substring(COMMENT_ATTACHMENT_STRING.length(), endIndex));
taskComment.setHasAttachment(true);
taskComment.setAttachmentId(attachmentID);
attachIdToComment.put(attachmentID, taskComment);
}
} catch (NumberFormatException e) {
return;
}
}
}
}
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