org.eclipse.mylyn.bugzilla.core/src/org/eclipse/mylyn/internal/bugzilla/core/SaxMultiBugReportContentHandler.java - mylyn/org.eclipse.mylyn.tasks - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2008 Tasktop Technologies 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:
  *     Tasktop Technologies - initial API and implementation
  *******************************************************************************/

 package org.eclipse.mylyn.internal.bugzilla.core;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;

 import org.eclipse.mylyn.tasks.core.IRepositoryPerson;
 import org.eclipse.mylyn.tasks.core.data.TaskAttachmentMapper;
 import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
 import org.eclipse.mylyn.tasks.core.data.TaskAttributeMapper;
 import org.eclipse.mylyn.tasks.core.data.TaskCommentMapper;
 import org.eclipse.mylyn.tasks.core.data.TaskData;
 import org.eclipse.mylyn.tasks.core.data.TaskDataCollector;
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.DefaultHandler;

 /**
  * Parser for xml bugzilla reports.
  *
  * @author Rob Elves
  * @author Hiroyuki Inaba (internationalization)
  */
 public class SaxMultiBugReportContentHandler extends DefaultHandler {

 	private static final String ATTRIBUTE_NAME = "name"; //$NON-NLS-1$

 	private static final String ID_STRING_BEGIN = " (id="; //$NON-NLS-1$

 	private static final String ID_STRING_END = ")"; //$NON-NLS-1$

 	private StringBuffer characters;

 	private TaskComment taskComment;

 	private Map<String, TaskCommentMapper> attachIdToComment = new HashMap<String, TaskCommentMapper>();

 	private int commentNum = 0;

 	private TaskAttachmentMapper attachment;

 	private final Map<String, TaskData> taskDataMap;

 	private TaskData repositoryTaskData;

 	private List<TaskComment> longDescs;

 	private String errorMessage = null;

 	private final List<BugzillaCustomField> customFields;

 	private final TaskDataCollector collector;

 	private boolean isDeprecated = false;

 	private boolean isPatch = false;

 	private TaskAttribute attachmentAttribute;

 	public SaxMultiBugReportContentHandler(TaskAttributeMapper mapper, TaskDataCollector collector,
 			Map<String, TaskData> taskDataMap, List<BugzillaCustomField> customFields) {
 		this.taskDataMap = taskDataMap;
 		this.customFields = customFields;
 		this.collector = collector;
 	}

 	public boolean errorOccurred() {
 		return errorMessage != null;
 	}

 	public String getErrorMessage() {
 		return errorMessage;
 	}

 	@Override
 	public void characters(char[] ch, int start, int length) throws SAXException {
 		characters.append(ch, start, length);
 		//System.err.println(String.copyValueOf(ch, start, length));
 	}

 	@Override
 	public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
 		characters = new StringBuffer();
 		BugzillaAttribute tag = BugzillaAttribute.UNKNOWN;
 		if (localName.startsWith(BugzillaCustomField.CUSTOM_FIELD_PREFIX)) {
 			return;
 		}
 		try {
 			tag = BugzillaAttribute.valueOf(localName.trim().toUpperCase(Locale.ENGLISH));
 		} 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)) { //$NON-NLS-1$
 				errorMessage = attributes.getValue("error"); //$NON-NLS-1$
 			}
 			attachIdToComment = new HashMap<String, TaskCommentMapper>();
 			commentNum = 0;
 			taskComment = null;
 			longDescs = new ArrayList<TaskComment>();
 			break;
 		case LONG_DESC:
 			taskComment = new TaskComment(commentNum++);
 			break;
 		case WHO:
 			if (taskComment != null) {
 				if (attributes != null && attributes.getLength() > 0) {
 					String name = attributes.getValue(ATTRIBUTE_NAME);
 					if (name != null) {
 						taskComment.authorName = name;
 					}
 				}
 			}
 			break;
 		case REPORTER:
 			if (attributes != null && attributes.getLength() > 0) {
 				String name = attributes.getValue(ATTRIBUTE_NAME);
 				if (name != null) {
 					BugzillaTaskDataHandler.createAttribute(repositoryTaskData, BugzillaAttribute.REPORTER_NAME)
 							.setValue(name);
 				}
 			}
 			break;
 		case QA_CONTACT:
 			if (attributes != null && attributes.getLength() > 0) {
 				String name = attributes.getValue(ATTRIBUTE_NAME);
 				if (name != null) {
 					BugzillaTaskDataHandler.createAttribute(repositoryTaskData, BugzillaAttribute.QA_CONTACT_NAME)
 							.setValue(name);
 				}
 			}
 			break;
 		case ASSIGNED_TO:
 			if (attributes != null && attributes.getLength() > 0) {
 				String name = attributes.getValue(ATTRIBUTE_NAME);
 				if (name != null) {
 					BugzillaTaskDataHandler.createAttribute(repositoryTaskData, BugzillaAttribute.ASSIGNED_TO_NAME)
 							.setValue(name);
 				}
 			}
 			break;
 		case ATTACHMENT:
 			if (attributes != null) {
 				isDeprecated = "1".equals(attributes.getValue(BugzillaAttribute.IS_OBSOLETE.getKey())); //$NON-NLS-1$
 				isPatch = "1".equals(attributes.getValue(BugzillaAttribute.IS_PATCH.getKey())); //$NON-NLS-1$
 			}
 			break;
 		case FLAG:
 			if (attributes != null && attributes.getLength() > 0) {
 				String name = attributes.getValue(ATTRIBUTE_NAME);
 				if (name != null) {
 					BugzillaFlagMapper mapper = new BugzillaFlagMapper();
 					String requestee = attributes.getValue("requestee"); //$NON-NLS-1$
 					mapper.setRequestee(requestee);
 					String setter = attributes.getValue("setter"); //$NON-NLS-1$
 					mapper.setSetter(setter);
 					String status = attributes.getValue("status"); //$NON-NLS-1$
 					mapper.setState(status);
 					mapper.setFlagId(name);
 					String id = attributes.getValue("id"); //$NON-NLS-1$
 					if (id != null && !id.equals("")) { //$NON-NLS-1$
 						/*
 						 * for version 3.2rc1 and 3.2.rc2 the id was not defined so we ignore
 						 * the definition
 						 */
 						try {
 							mapper.setNumber(Integer.valueOf(id));
 							TaskAttribute attribute;
 							if (attachmentAttribute != null) {
 								attribute = attachmentAttribute.createAttribute("task.common.kind.flag" + id); //$NON-NLS-1$
 							} else {
 								attribute = repositoryTaskData.getRoot().createAttribute("task.common.kind.flag" + id); //$NON-NLS-1$
 							}
 							mapper.applyTo(attribute);
 						} catch (NumberFormatException e) {
 							// ignore
 						}
 					}
 				}
 			}
 			break;
 		}

 	}

 	@Override
 	public void endElement(String uri, String localName, String qName) throws SAXException {

 		//remove whitespaces from the end of the parsed Text
 		while (characters.length() > 0 && Character.isWhitespace(characters.charAt(characters.length() - 1))) {
 			characters.setLength(characters.length() - 1);
 		}

 		String parsedText = characters.toString();

 		if (localName.startsWith(BugzillaCustomField.CUSTOM_FIELD_PREFIX)) {
 			TaskAttribute endAttribute = repositoryTaskData.getRoot().getAttribute(localName);
 			if (endAttribute == null) {
 				String desc = "???"; //$NON-NLS-1$
 				BugzillaCustomField customField = null;
 				for (BugzillaCustomField bugzillaCustomField : customFields) {
 					if (localName.equals(bugzillaCustomField.getName())) {
 						customField = bugzillaCustomField;
 						break;
 					}
 				}
 				if (customField != null) {
 					TaskAttribute atr = repositoryTaskData.getRoot().createAttribute(localName);
 					desc = customField.getDescription();
 					atr.getMetaData().defaults().setLabel(desc).setReadOnly(false);
 					atr.getMetaData().setKind(TaskAttribute.KIND_DEFAULT);
 					atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
 					switch (customField.getType()) {
 					case 1: // Free Text
 						atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
 						break;
 					case 2: // Drop Down
 						atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
 						break;
 					case 3: // Multiple-Selection Box
 						atr.getMetaData().setType(TaskAttribute.TYPE_MULTI_SELECT);
 						break;
 					case 4: // Large Text Box
 						atr.getMetaData().setType(TaskAttribute.TYPE_LONG_TEXT);
 						break;
 					case 5: // Date/Time
 						atr.getMetaData().setType(TaskAttribute.TYPE_DATETIME);
 						break;

 					default:
 						List<String> options = customField.getOptions();
 						if (options.size() > 0) {
 							atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
 						} else {
 							atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
 						}
 					}
 					atr.getMetaData().setReadOnly(false);
 					atr.setValue(parsedText);
 				}
 			} else {
 				endAttribute.addValue(parsedText);
 			}
 		}

 		BugzillaAttribute tag = BugzillaAttribute.UNKNOWN;
 		try {
 			tag = BugzillaAttribute.valueOf(localName.trim().toUpperCase(Locale.ENGLISH));
 		} catch (RuntimeException e) {
 			if (e instanceof IllegalArgumentException) {
 				// ignore unrecognized tags
 				return;
 			}
 			throw e;
 		}
 		switch (tag) {
 		case BUG_ID: {
 			try {
 				repositoryTaskData = taskDataMap.get(parsedText.trim());
 				if (repositoryTaskData == null) {
 					errorMessage = parsedText + Messages.SaxMultiBugReportContentHandler_id_not_found;
 				}
 			} catch (Exception e) {
 				errorMessage = Messages.SaxMultiBugReportContentHandler_Bug_id_from_server_did_not_match_requested_id;
 			}

 			TaskAttribute attr = repositoryTaskData.getRoot().getMappedAttribute(tag.getKey());
 			if (attr == null) {
 				attr = BugzillaTaskDataHandler.createAttribute(repositoryTaskData, tag);
 			}
 			attr.setValue(parsedText);

 			break;
 		}

 			// Comment attributes
 		case WHO:
 			if (taskComment != null) {
 				taskComment.author = parsedText;
 			}
 			break;
 		case BUG_WHEN:
 			if (taskComment != null) {
 				taskComment.createdTimeStamp = parsedText;
 			}
 			break;
 		case WORK_TIME:
 			if (taskComment != null) {
 				taskComment.timeWorked = parsedText;
 			}
 			break;
 		case THETEXT:
 			if (taskComment != null) {
 				taskComment.commentText = parsedText;
 			}
 			break;
 		case LONG_DESC:
 			if (taskComment != null) {
 				longDescs.add(taskComment);
 			}
 			break;

 		// Attachment attributes
 		case ATTACHID:
 			attachmentAttribute = repositoryTaskData.getRoot().createAttribute(
 					TaskAttribute.PREFIX_ATTACHMENT + parsedText);
 			attachment = TaskAttachmentMapper.createFrom(attachmentAttribute);
 			attachment.setLength(new Long(-1));
 			attachment.setAttachmentId(parsedText);
 			attachment.setPatch(isPatch);
 			attachment.setDeprecated(isDeprecated);
 			break;
 		case DATE:
 			// ignore
 			break;
 		case DESC:
 			if (attachment != null) {
 				attachment.setDescription(parsedText);
 			}
 			break;
 		case FILENAME:
 			if (attachment != null) {
 				attachment.setFileName(parsedText);
 			}
 			break;
 		case CTYPE:
 		case TYPE:
 			if (attachment != null) {
 				attachment.setContentType(parsedText);
 			}
 			break;
 		case SIZE:
 			if (attachment != null) {
 				try {
 					if (parsedText != null) {
 						attachment.setLength(Long.parseLong(parsedText));
 					}
 				} catch (NumberFormatException e) {
 					// ignore
 				}
 			}
 			break;
 		case ATTACHMENT:
 			if (attachment != null) {
 				attachment.applyTo(attachmentAttribute);
 			}
 			isPatch = false;
 			isDeprecated = false;
 			attachment = null;
 			attachmentAttribute = null;
 			break;
 		case DATA:
 			// ignored
 			break;
 		case BUGZILLA:
 			// ignored
 			break;
 		case BUG:
 			// Reached end of bug.

 			addDescriptionAndComments();

 			// Need to set LONGDESCLENGTH to number of comments + 1 for description
 			TaskAttribute numCommentsAttribute = repositoryTaskData.getRoot().getMappedAttribute(
 					BugzillaAttribute.LONGDESCLENGTH.getKey());
 			if (numCommentsAttribute == null) {
 				numCommentsAttribute = BugzillaTaskDataHandler.createAttribute(repositoryTaskData,
 						BugzillaAttribute.LONGDESCLENGTH);
 			}

 			numCommentsAttribute.setValue("" + commentNum); //$NON-NLS-1$

 			updateAttachmentMetaData();
 			TaskAttribute attrCreation = repositoryTaskData.getRoot().getAttribute(
 					BugzillaAttribute.CREATION_TS.getKey());

 			updateCustomFields(repositoryTaskData);

 			// Guard against empty data sets
 			if (attrCreation != null && !attrCreation.equals("")) { //$NON-NLS-1$
 				collector.accept(repositoryTaskData);
 			}
 			break;
 		case BLOCKED:
 			// handled similarly to DEPENDSON
 		case DEPENDSON:
 			TaskAttribute blockOrDepends = repositoryTaskData.getRoot().getMappedAttribute(tag.getKey());
 			if (blockOrDepends == null) {
 				BugzillaTaskDataHandler.createAttribute(repositoryTaskData, tag).setValue(parsedText);
 			} else {
 				if (blockOrDepends.getValue().equals("")) { //$NON-NLS-1$
 					blockOrDepends.setValue(parsedText);
 				} else {
 					blockOrDepends.setValue(blockOrDepends.getValue() + ", " + parsedText); //$NON-NLS-1$
 				}
 			}
 			break;
 		case UNKNOWN:
 			//ignore
 			break;
 		case FLAG:
 			//ignore
 			break;
 		default:
 			TaskAttribute defaultAttribute = repositoryTaskData.getRoot().getMappedAttribute(tag.getKey());
 			if (defaultAttribute == null) {
 				defaultAttribute = BugzillaTaskDataHandler.createAttribute(repositoryTaskData, tag);
 				defaultAttribute.setValue(parsedText);
 			} else {
 				defaultAttribute.addValue(parsedText);
 			}
 			break;
 		}

 	}

 	private void updateCustomFields(TaskData taskData) {
 		RepositoryConfiguration config = BugzillaCorePlugin.getRepositoryConfiguration(repositoryTaskData.getRepositoryUrl());
 		if (config != null) {
 			for (BugzillaCustomField bugzillaCustomField : config.getCustomFields()) {

 				TaskAttribute atr = taskData.getRoot().getAttribute(bugzillaCustomField.getName());
 				if (atr == null) {
 					atr = taskData.getRoot().createAttribute(bugzillaCustomField.getName());
 				}

 				if (atr != null) {
 					atr.getMetaData().defaults().setLabel(bugzillaCustomField.getDescription());
 					atr.getMetaData().setKind(TaskAttribute.KIND_DEFAULT);

 					switch (bugzillaCustomField.getType()) {
 					case 1: // Free Text
 						atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
 						break;
 					case 2: // Drop Down
 						atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
 						break;
 					case 3: // Multiple-Selection Box
 						atr.getMetaData().setType(TaskAttribute.TYPE_MULTI_SELECT);
 						break;
 					case 4: // Large Text Box
 						atr.getMetaData().setType(TaskAttribute.TYPE_LONG_TEXT);
 						break;
 					case 5: // Date/Time
 						atr.getMetaData().setType(TaskAttribute.TYPE_DATETIME);
 						break;

 					default:
 						List<String> options = bugzillaCustomField.getOptions();
 						if (options.size() > 0) {
 							atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
 						} else {
 							atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
 						}
 					}
 					atr.getMetaData().setReadOnly(false);
 				}
 			}
 		}

 	}

 	private void updateAttachmentMetaData() {
 		List<TaskAttribute> taskAttachments = repositoryTaskData.getAttributeMapper().getAttributesByType(
 				repositoryTaskData, TaskAttribute.TYPE_ATTACHMENT);
 		for (TaskAttribute attachment : taskAttachments) {
 			TaskAttachmentMapper attachmentMapper = TaskAttachmentMapper.createFrom(attachment);
 			TaskCommentMapper taskComment = attachIdToComment.get(attachmentMapper.getAttachmentId());
 			if (taskComment != null) {
 				attachmentMapper.setAuthor(taskComment.getAuthor());
 				attachmentMapper.setCreationDate(taskComment.getCreationDate());
 			}
 			attachmentMapper.setUrl(repositoryTaskData.getRepositoryUrl()
 					+ IBugzillaConstants.URL_GET_ATTACHMENT_SUFFIX + attachmentMapper.getAttachmentId());
 			attachmentMapper.applyTo(attachment);
 		}
 	}

 	private void addDescriptionAndComments() {
 		int longDescsSize = longDescs.size() - 1;
 		commentNum = 1;
 		if (longDescsSize == 0) {
 			addDescription(longDescs.get(0).commentText);
 		} else if (longDescsSize == 1) {
 			if (longDescs.get(0).createdTimeStamp.compareTo(longDescs.get(1).createdTimeStamp) <= 0) {
 				// if created_0 is equal to created_1 we assume that longDescs at index 0 is the description.
 				addDescription(longDescs.get(0).commentText);
 				addComment(longDescs.get(1));
 			} else {
 				addDescription(longDescs.get(1).commentText);
 				addComment(longDescs.get(0));
 			}
 		} else if (longDescsSize > 1) {
 			String created_0 = longDescs.get(0).createdTimeStamp;
 			String created_1 = longDescs.get(1).createdTimeStamp;
 			String created_n = longDescs.get(longDescsSize).createdTimeStamp;
 			if (created_0.compareTo(created_1) <= 0 && created_0.compareTo(created_n) < 0) {
 				// if created_0 is equal to created_1 we assume that longDescs at index 0 is the description.
 				addDescription(longDescs.get(0).commentText);

 				if (created_1.compareTo(created_n) < 0) {
 					for (int i = 1; i <= longDescsSize; i++) {
 						addComment(longDescs.get(i));
 					}
 				} else {
 					for (int i = longDescsSize; i > 0; i--) {
 						addComment(longDescs.get(i));
 					}
 				}
 			} else {
 				addDescription(longDescs.get(longDescsSize).commentText);
 				if (created_0.compareTo(created_1) < 0) {
 					for (int i = 0; i < longDescsSize; i++) {
 						addComment(longDescs.get(i));
 					}
 				} else {
 					for (int i = longDescsSize - 1; i >= 0; i--) {
 						addComment(longDescs.get(i));
 					}
 				}
 			}
 		}
 	}

 	private void addDescription(String commentText) {
 		TaskAttribute attrDescription = BugzillaTaskDataHandler.createAttribute(repositoryTaskData,
 				BugzillaAttribute.LONG_DESC);
 		attrDescription.setValue(commentText);
 	}

 	private void addComment(TaskComment comment) {
 		TaskAttribute attribute = repositoryTaskData.getRoot().createAttribute(
 				TaskAttribute.PREFIX_COMMENT + commentNum);
 		TaskCommentMapper taskComment = TaskCommentMapper.createFrom(attribute);
 		taskComment.setCommentId(commentNum + ""); //$NON-NLS-1$
 		taskComment.setNumber(commentNum);
 		IRepositoryPerson author = repositoryTaskData.getAttributeMapper().getTaskRepository().createPerson(
 				comment.author);
 		author.setName(comment.authorName);
 		taskComment.setAuthor(author);
 		TaskAttribute attrTimestamp = attribute.createAttribute(BugzillaAttribute.BUG_WHEN.getKey());
 		attrTimestamp.setValue(comment.createdTimeStamp);
 		taskComment.setCreationDate(repositoryTaskData.getAttributeMapper().getDateValue(attrTimestamp));
 		if (comment.commentText != null) {
 			String commentText = comment.commentText.trim();
 			taskComment.setText(commentText);

 		}
 		taskComment.applyTo(attribute);
 		commentNum++;

 		if (comment.timeWorked != null) {
 			TaskAttribute workTime = BugzillaTaskDataHandler.createAttribute(attribute, BugzillaAttribute.WORK_TIME);
 			workTime.setValue(comment.timeWorked);
 		}

 		parseAttachment(taskComment);

 	}

 	/** determines attachment id from comment */
 	private void parseAttachment(TaskCommentMapper comment) {
 		String attachmentID = ""; //$NON-NLS-1$
 		String commentText = comment.getText();
 		int firstDelimiter = commentText.indexOf("\n"); //$NON-NLS-1$
 		if (firstDelimiter < 0) {
 			firstDelimiter = commentText.length();
 		}
 		int startIndex = commentText.indexOf(ID_STRING_BEGIN);
 		if (startIndex > 0 && startIndex < firstDelimiter) {
 			int endIndex = commentText.indexOf(ID_STRING_END, startIndex);
 			if (endIndex > 0 && endIndex < firstDelimiter) {
 				startIndex += ID_STRING_BEGIN.length();
 				int p = startIndex;
 				while (p < endIndex) {
 					char c = commentText.charAt(p);
 					if (c < '0' || c > '9') {
 						break;
 					}
 					p++;
 				}
 				if (p == endIndex) {
 					attachmentID = commentText.substring(startIndex, endIndex);
 					if (!attachmentID.equals("")) { //$NON-NLS-1$
 						attachIdToComment.put(attachmentID, comment);
 					}
 				}
 			}
 		}
 	}

 	private static class TaskComment {

 		public int number;

 		public String author;

 		public String authorName;

 		public String createdTimeStamp;

 		public String commentText;

 		public String timeWorked;

 		public boolean hasAttachment;

 		public String attachmentId;

 		public TaskComment(int num) {
 			this.number = num;
 		}
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2004, 2008 Tasktop Technologies 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:
	* Tasktop Technologies - initial API and implementation
	*******************************************************************************/

	package org.eclipse.mylyn.internal.bugzilla.core;

	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Locale;
	import java.util.Map;

	import org.eclipse.mylyn.tasks.core.IRepositoryPerson;
	import org.eclipse.mylyn.tasks.core.data.TaskAttachmentMapper;
	import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
	import org.eclipse.mylyn.tasks.core.data.TaskAttributeMapper;
	import org.eclipse.mylyn.tasks.core.data.TaskCommentMapper;
	import org.eclipse.mylyn.tasks.core.data.TaskData;
	import org.eclipse.mylyn.tasks.core.data.TaskDataCollector;
	import org.xml.sax.Attributes;
	import org.xml.sax.SAXException;
	import org.xml.sax.helpers.DefaultHandler;

	/**
	* Parser for xml bugzilla reports.
	*
	* @author Rob Elves
	* @author Hiroyuki Inaba (internationalization)
	*/
	public class SaxMultiBugReportContentHandler extends DefaultHandler {

	private static final String ATTRIBUTE_NAME = "name"; //$NON-NLS-1$

	private static final String ID_STRING_BEGIN = " (id="; //$NON-NLS-1$

	private static final String ID_STRING_END = ")"; //$NON-NLS-1$

	private StringBuffer characters;

	private TaskComment taskComment;

	private Map<String, TaskCommentMapper> attachIdToComment = new HashMap<String, TaskCommentMapper>();

	private int commentNum = 0;

	private TaskAttachmentMapper attachment;

	private final Map<String, TaskData> taskDataMap;

	private TaskData repositoryTaskData;

	private List<TaskComment> longDescs;

	private String errorMessage = null;

	private final List<BugzillaCustomField> customFields;

	private final TaskDataCollector collector;

	private boolean isDeprecated = false;

	private boolean isPatch = false;

	private TaskAttribute attachmentAttribute;

	public SaxMultiBugReportContentHandler(TaskAttributeMapper mapper, TaskDataCollector collector,
	Map<String, TaskData> taskDataMap, List<BugzillaCustomField> customFields) {
	this.taskDataMap = taskDataMap;
	this.customFields = customFields;
	this.collector = collector;
	}

	public boolean errorOccurred() {
	return errorMessage != null;
	}

	public String getErrorMessage() {
	return errorMessage;
	}

	@Override
	public void characters(char[] ch, int start, int length) throws SAXException {
	characters.append(ch, start, length);
	//System.err.println(String.copyValueOf(ch, start, length));
	}

	@Override
	public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
	characters = new StringBuffer();
	BugzillaAttribute tag = BugzillaAttribute.UNKNOWN;
	if (localName.startsWith(BugzillaCustomField.CUSTOM_FIELD_PREFIX)) {
	return;
	}
	try {
	tag = BugzillaAttribute.valueOf(localName.trim().toUpperCase(Locale.ENGLISH));
	} 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)) { //$NON-NLS-1$
	errorMessage = attributes.getValue("error"); //$NON-NLS-1$
	}
	attachIdToComment = new HashMap<String, TaskCommentMapper>();
	commentNum = 0;
	taskComment = null;
	longDescs = new ArrayList<TaskComment>();
	break;
	case LONG_DESC:
	taskComment = new TaskComment(commentNum++);
	break;
	case WHO:
	if (taskComment != null) {
	if (attributes != null && attributes.getLength() > 0) {
	String name = attributes.getValue(ATTRIBUTE_NAME);
	if (name != null) {
	taskComment.authorName = name;
	}
	}
	}
	break;
	case REPORTER:
	if (attributes != null && attributes.getLength() > 0) {
	String name = attributes.getValue(ATTRIBUTE_NAME);
	if (name != null) {
	BugzillaTaskDataHandler.createAttribute(repositoryTaskData, BugzillaAttribute.REPORTER_NAME)
	.setValue(name);
	}
	}
	break;
	case QA_CONTACT:
	if (attributes != null && attributes.getLength() > 0) {
	String name = attributes.getValue(ATTRIBUTE_NAME);
	if (name != null) {
	BugzillaTaskDataHandler.createAttribute(repositoryTaskData, BugzillaAttribute.QA_CONTACT_NAME)
	.setValue(name);
	}
	}
	break;
	case ASSIGNED_TO:
	if (attributes != null && attributes.getLength() > 0) {
	String name = attributes.getValue(ATTRIBUTE_NAME);
	if (name != null) {
	BugzillaTaskDataHandler.createAttribute(repositoryTaskData, BugzillaAttribute.ASSIGNED_TO_NAME)
	.setValue(name);
	}
	}
	break;
	case ATTACHMENT:
	if (attributes != null) {
	isDeprecated = "1".equals(attributes.getValue(BugzillaAttribute.IS_OBSOLETE.getKey())); //$NON-NLS-1$
	isPatch = "1".equals(attributes.getValue(BugzillaAttribute.IS_PATCH.getKey())); //$NON-NLS-1$
	}
	break;
	case FLAG:
	if (attributes != null && attributes.getLength() > 0) {
	String name = attributes.getValue(ATTRIBUTE_NAME);
	if (name != null) {
	BugzillaFlagMapper mapper = new BugzillaFlagMapper();
	String requestee = attributes.getValue("requestee"); //$NON-NLS-1$
	mapper.setRequestee(requestee);
	String setter = attributes.getValue("setter"); //$NON-NLS-1$
	mapper.setSetter(setter);
	String status = attributes.getValue("status"); //$NON-NLS-1$
	mapper.setState(status);
	mapper.setFlagId(name);
	String id = attributes.getValue("id"); //$NON-NLS-1$
	if (id != null && !id.equals("")) { //$NON-NLS-1$
	/*
	* for version 3.2rc1 and 3.2.rc2 the id was not defined so we ignore
	* the definition
	*/
	try {
	mapper.setNumber(Integer.valueOf(id));
	TaskAttribute attribute;
	if (attachmentAttribute != null) {
	attribute = attachmentAttribute.createAttribute("task.common.kind.flag" + id); //$NON-NLS-1$
	} else {
	attribute = repositoryTaskData.getRoot().createAttribute("task.common.kind.flag" + id); //$NON-NLS-1$
	}
	mapper.applyTo(attribute);
	} catch (NumberFormatException e) {
	// ignore
	}
	}
	}
	}
	break;
	}

	}

	@Override
	public void endElement(String uri, String localName, String qName) throws SAXException {

	//remove whitespaces from the end of the parsed Text
	while (characters.length() > 0 && Character.isWhitespace(characters.charAt(characters.length() - 1))) {
	characters.setLength(characters.length() - 1);
	}

	String parsedText = characters.toString();

	if (localName.startsWith(BugzillaCustomField.CUSTOM_FIELD_PREFIX)) {
	TaskAttribute endAttribute = repositoryTaskData.getRoot().getAttribute(localName);
	if (endAttribute == null) {
	String desc = "???"; //$NON-NLS-1$
	BugzillaCustomField customField = null;
	for (BugzillaCustomField bugzillaCustomField : customFields) {
	if (localName.equals(bugzillaCustomField.getName())) {
	customField = bugzillaCustomField;
	break;
	}
	}
	if (customField != null) {
	TaskAttribute atr = repositoryTaskData.getRoot().createAttribute(localName);
	desc = customField.getDescription();
	atr.getMetaData().defaults().setLabel(desc).setReadOnly(false);
	atr.getMetaData().setKind(TaskAttribute.KIND_DEFAULT);
	atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
	switch (customField.getType()) {
	case 1: // Free Text
	atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
	break;
	case 2: // Drop Down
	atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
	break;
	case 3: // Multiple-Selection Box
	atr.getMetaData().setType(TaskAttribute.TYPE_MULTI_SELECT);
	break;
	case 4: // Large Text Box
	atr.getMetaData().setType(TaskAttribute.TYPE_LONG_TEXT);
	break;
	case 5: // Date/Time
	atr.getMetaData().setType(TaskAttribute.TYPE_DATETIME);
	break;

	default:
	List<String> options = customField.getOptions();
	if (options.size() > 0) {
	atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
	} else {
	atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
	}
	}
	atr.getMetaData().setReadOnly(false);
	atr.setValue(parsedText);
	}
	} else {
	endAttribute.addValue(parsedText);
	}
	}

	BugzillaAttribute tag = BugzillaAttribute.UNKNOWN;
	try {
	tag = BugzillaAttribute.valueOf(localName.trim().toUpperCase(Locale.ENGLISH));
	} catch (RuntimeException e) {
	if (e instanceof IllegalArgumentException) {
	// ignore unrecognized tags
	return;
	}
	throw e;
	}
	switch (tag) {
	case BUG_ID: {
	try {
	repositoryTaskData = taskDataMap.get(parsedText.trim());
	if (repositoryTaskData == null) {
	errorMessage = parsedText + Messages.SaxMultiBugReportContentHandler_id_not_found;
	}
	} catch (Exception e) {
	errorMessage = Messages.SaxMultiBugReportContentHandler_Bug_id_from_server_did_not_match_requested_id;
	}

	TaskAttribute attr = repositoryTaskData.getRoot().getMappedAttribute(tag.getKey());
	if (attr == null) {
	attr = BugzillaTaskDataHandler.createAttribute(repositoryTaskData, tag);
	}
	attr.setValue(parsedText);

	break;
	}

	// Comment attributes
	case WHO:
	if (taskComment != null) {
	taskComment.author = parsedText;
	}
	break;
	case BUG_WHEN:
	if (taskComment != null) {
	taskComment.createdTimeStamp = parsedText;
	}
	break;
	case WORK_TIME:
	if (taskComment != null) {
	taskComment.timeWorked = parsedText;
	}
	break;
	case THETEXT:
	if (taskComment != null) {
	taskComment.commentText = parsedText;
	}
	break;
	case LONG_DESC:
	if (taskComment != null) {
	longDescs.add(taskComment);
	}
	break;

	// Attachment attributes
	case ATTACHID:
	attachmentAttribute = repositoryTaskData.getRoot().createAttribute(
	TaskAttribute.PREFIX_ATTACHMENT + parsedText);
	attachment = TaskAttachmentMapper.createFrom(attachmentAttribute);
	attachment.setLength(new Long(-1));
	attachment.setAttachmentId(parsedText);
	attachment.setPatch(isPatch);
	attachment.setDeprecated(isDeprecated);
	break;
	case DATE:
	// ignore
	break;
	case DESC:
	if (attachment != null) {
	attachment.setDescription(parsedText);
	}
	break;
	case FILENAME:
	if (attachment != null) {
	attachment.setFileName(parsedText);
	}
	break;
	case CTYPE:
	case TYPE:
	if (attachment != null) {
	attachment.setContentType(parsedText);
	}
	break;
	case SIZE:
	if (attachment != null) {
	try {
	if (parsedText != null) {
	attachment.setLength(Long.parseLong(parsedText));
	}
	} catch (NumberFormatException e) {
	// ignore
	}
	}
	break;
	case ATTACHMENT:
	if (attachment != null) {
	attachment.applyTo(attachmentAttribute);
	}
	isPatch = false;
	isDeprecated = false;
	attachment = null;
	attachmentAttribute = null;
	break;
	case DATA:
	// ignored
	break;
	case BUGZILLA:
	// ignored
	break;
	case BUG:
	// Reached end of bug.

	addDescriptionAndComments();

	// Need to set LONGDESCLENGTH to number of comments + 1 for description
	TaskAttribute numCommentsAttribute = repositoryTaskData.getRoot().getMappedAttribute(
	BugzillaAttribute.LONGDESCLENGTH.getKey());
	if (numCommentsAttribute == null) {
	numCommentsAttribute = BugzillaTaskDataHandler.createAttribute(repositoryTaskData,
	BugzillaAttribute.LONGDESCLENGTH);
	}

	numCommentsAttribute.setValue("" + commentNum); //$NON-NLS-1$

	updateAttachmentMetaData();
	TaskAttribute attrCreation = repositoryTaskData.getRoot().getAttribute(
	BugzillaAttribute.CREATION_TS.getKey());

	updateCustomFields(repositoryTaskData);

	// Guard against empty data sets
	if (attrCreation != null && !attrCreation.equals("")) { //$NON-NLS-1$
	collector.accept(repositoryTaskData);
	}
	break;
	case BLOCKED:
	// handled similarly to DEPENDSON
	case DEPENDSON:
	TaskAttribute blockOrDepends = repositoryTaskData.getRoot().getMappedAttribute(tag.getKey());
	if (blockOrDepends == null) {
	BugzillaTaskDataHandler.createAttribute(repositoryTaskData, tag).setValue(parsedText);
	} else {
	if (blockOrDepends.getValue().equals("")) { //$NON-NLS-1$
	blockOrDepends.setValue(parsedText);
	} else {
	blockOrDepends.setValue(blockOrDepends.getValue() + ", " + parsedText); //$NON-NLS-1$
	}
	}
	break;
	case UNKNOWN:
	//ignore
	break;
	case FLAG:
	//ignore
	break;
	default:
	TaskAttribute defaultAttribute = repositoryTaskData.getRoot().getMappedAttribute(tag.getKey());
	if (defaultAttribute == null) {
	defaultAttribute = BugzillaTaskDataHandler.createAttribute(repositoryTaskData, tag);
	defaultAttribute.setValue(parsedText);
	} else {
	defaultAttribute.addValue(parsedText);
	}
	break;
	}

	}

	private void updateCustomFields(TaskData taskData) {
	RepositoryConfiguration config = BugzillaCorePlugin.getRepositoryConfiguration(repositoryTaskData.getRepositoryUrl());
	if (config != null) {
	for (BugzillaCustomField bugzillaCustomField : config.getCustomFields()) {

	TaskAttribute atr = taskData.getRoot().getAttribute(bugzillaCustomField.getName());
	if (atr == null) {
	atr = taskData.getRoot().createAttribute(bugzillaCustomField.getName());
	}

	if (atr != null) {
	atr.getMetaData().defaults().setLabel(bugzillaCustomField.getDescription());
	atr.getMetaData().setKind(TaskAttribute.KIND_DEFAULT);

	switch (bugzillaCustomField.getType()) {
	case 1: // Free Text
	atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
	break;
	case 2: // Drop Down
	atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
	break;
	case 3: // Multiple-Selection Box
	atr.getMetaData().setType(TaskAttribute.TYPE_MULTI_SELECT);
	break;
	case 4: // Large Text Box
	atr.getMetaData().setType(TaskAttribute.TYPE_LONG_TEXT);
	break;
	case 5: // Date/Time
	atr.getMetaData().setType(TaskAttribute.TYPE_DATETIME);
	break;

	default:
	List<String> options = bugzillaCustomField.getOptions();
	if (options.size() > 0) {
	atr.getMetaData().setType(TaskAttribute.TYPE_SINGLE_SELECT);
	} else {
	atr.getMetaData().setType(TaskAttribute.TYPE_SHORT_TEXT);
	}
	}
	atr.getMetaData().setReadOnly(false);
	}
	}
	}

	}

	private void updateAttachmentMetaData() {
	List<TaskAttribute> taskAttachments = repositoryTaskData.getAttributeMapper().getAttributesByType(
	repositoryTaskData, TaskAttribute.TYPE_ATTACHMENT);
	for (TaskAttribute attachment : taskAttachments) {
	TaskAttachmentMapper attachmentMapper = TaskAttachmentMapper.createFrom(attachment);
	TaskCommentMapper taskComment = attachIdToComment.get(attachmentMapper.getAttachmentId());
	if (taskComment != null) {
	attachmentMapper.setAuthor(taskComment.getAuthor());
	attachmentMapper.setCreationDate(taskComment.getCreationDate());
	}
	attachmentMapper.setUrl(repositoryTaskData.getRepositoryUrl()
	+ IBugzillaConstants.URL_GET_ATTACHMENT_SUFFIX + attachmentMapper.getAttachmentId());
	attachmentMapper.applyTo(attachment);
	}
	}

	private void addDescriptionAndComments() {
	int longDescsSize = longDescs.size() - 1;
	commentNum = 1;
	if (longDescsSize == 0) {
	addDescription(longDescs.get(0).commentText);
	} else if (longDescsSize == 1) {
	if (longDescs.get(0).createdTimeStamp.compareTo(longDescs.get(1).createdTimeStamp) <= 0) {
	// if created_0 is equal to created_1 we assume that longDescs at index 0 is the description.
	addDescription(longDescs.get(0).commentText);
	addComment(longDescs.get(1));
	} else {
	addDescription(longDescs.get(1).commentText);
	addComment(longDescs.get(0));
	}
	} else if (longDescsSize > 1) {
	String created_0 = longDescs.get(0).createdTimeStamp;
	String created_1 = longDescs.get(1).createdTimeStamp;
	String created_n = longDescs.get(longDescsSize).createdTimeStamp;
	if (created_0.compareTo(created_1) <= 0 && created_0.compareTo(created_n) < 0) {
	// if created_0 is equal to created_1 we assume that longDescs at index 0 is the description.
	addDescription(longDescs.get(0).commentText);

	if (created_1.compareTo(created_n) < 0) {
	for (int i = 1; i <= longDescsSize; i++) {
	addComment(longDescs.get(i));
	}
	} else {
	for (int i = longDescsSize; i > 0; i--) {
	addComment(longDescs.get(i));
	}
	}
	} else {
	addDescription(longDescs.get(longDescsSize).commentText);
	if (created_0.compareTo(created_1) < 0) {
	for (int i = 0; i < longDescsSize; i++) {
	addComment(longDescs.get(i));
	}
	} else {
	for (int i = longDescsSize - 1; i >= 0; i--) {
	addComment(longDescs.get(i));
	}
	}
	}
	}
	}

	private void addDescription(String commentText) {
	TaskAttribute attrDescription = BugzillaTaskDataHandler.createAttribute(repositoryTaskData,
	BugzillaAttribute.LONG_DESC);
	attrDescription.setValue(commentText);
	}

	private void addComment(TaskComment comment) {
	TaskAttribute attribute = repositoryTaskData.getRoot().createAttribute(
	TaskAttribute.PREFIX_COMMENT + commentNum);
	TaskCommentMapper taskComment = TaskCommentMapper.createFrom(attribute);
	taskComment.setCommentId(commentNum + ""); //$NON-NLS-1$
	taskComment.setNumber(commentNum);
	IRepositoryPerson author = repositoryTaskData.getAttributeMapper().getTaskRepository().createPerson(
	comment.author);
	author.setName(comment.authorName);
	taskComment.setAuthor(author);
	TaskAttribute attrTimestamp = attribute.createAttribute(BugzillaAttribute.BUG_WHEN.getKey());
	attrTimestamp.setValue(comment.createdTimeStamp);
	taskComment.setCreationDate(repositoryTaskData.getAttributeMapper().getDateValue(attrTimestamp));
	if (comment.commentText != null) {
	String commentText = comment.commentText.trim();
	taskComment.setText(commentText);

	}
	taskComment.applyTo(attribute);
	commentNum++;

	if (comment.timeWorked != null) {
	TaskAttribute workTime = BugzillaTaskDataHandler.createAttribute(attribute, BugzillaAttribute.WORK_TIME);
	workTime.setValue(comment.timeWorked);
	}

	parseAttachment(taskComment);

	}

	/** determines attachment id from comment */
	private void parseAttachment(TaskCommentMapper comment) {
	String attachmentID = ""; //$NON-NLS-1$
	String commentText = comment.getText();
	int firstDelimiter = commentText.indexOf("\n"); //$NON-NLS-1$
	if (firstDelimiter < 0) {
	firstDelimiter = commentText.length();
	}
	int startIndex = commentText.indexOf(ID_STRING_BEGIN);
	if (startIndex > 0 && startIndex < firstDelimiter) {
	int endIndex = commentText.indexOf(ID_STRING_END, startIndex);
	if (endIndex > 0 && endIndex < firstDelimiter) {
	startIndex += ID_STRING_BEGIN.length();
	int p = startIndex;
	while (p < endIndex) {
	char c = commentText.charAt(p);
	if (c < '0' \|\| c > '9') {
	break;
	}
	p++;
	}
	if (p == endIndex) {
	attachmentID = commentText.substring(startIndex, endIndex);
	if (!attachmentID.equals("")) { //$NON-NLS-1$
	attachIdToComment.put(attachmentID, comment);
	}
	}
	}
	}
	}

	private static class TaskComment {

	public int number;

	public String author;

	public String authorName;

	public String createdTimeStamp;

	public String commentText;

	public String timeWorked;

	public boolean hasAttachment;

	public String attachmentId;

	public TaskComment(int num) {
	this.number = num;
	}
	}

	}