| /******************************************************************************* |
| * Copyright (c) 2004, 2008 Tasktop Technologies and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.tasks.core.data; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.xml.transform.sax.TransformerHandler; |
| |
| import org.eclipse.mylyn.tasks.core.data.ITaskDataWorkingCopy; |
| import org.eclipse.mylyn.tasks.core.data.TaskAttribute; |
| import org.eclipse.mylyn.tasks.core.data.TaskData; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.AttributesImpl; |
| |
| /** |
| * @author Steffen Pingel |
| */ |
| public class TaskDataStateWriter { |
| |
| private static final String TASK_DATA_STATE_VERSION = "2.0"; //$NON-NLS-1$ |
| |
| private static final String CDATA = "CDATA"; //$NON-NLS-1$ |
| |
| private final TransformerHandler handler; |
| |
| public TaskDataStateWriter(TransformerHandler handler) { |
| this.handler = handler; |
| } |
| |
| public void write(ITaskDataWorkingCopy state) throws SAXException { |
| handler.startDocument(); |
| AttributesImpl atts = new AttributesImpl(); |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_CONNECTOR_KIND, CDATA, state.getConnectorKind()); //$NON-NLS-1$ //$NON-NLS-2$ |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_REPOSITORY_URL, CDATA, state.getRepositoryUrl()); //$NON-NLS-1$ //$NON-NLS-2$ |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_TASK_ID, CDATA, state.getTaskId()); //$NON-NLS-1$ //$NON-NLS-2$ |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_VERSION, CDATA, TASK_DATA_STATE_VERSION); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_TASK_STATE, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| if (state.getRepositoryData() != null) { |
| writeTaskData(state.getRepositoryData(), ITaskDataConstants.ELEMENT_NEW_DATA); |
| } |
| if (state.getLastReadData() != null) { |
| writeTaskData(state.getLastReadData(), ITaskDataConstants.ELEMENT_OLD_DATA); |
| } |
| if (state.getEditsData() != null) { |
| writeTaskData(state.getEditsData(), ITaskDataConstants.ELEMENT_EDITS_DATA); |
| } |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_TASK_STATE); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.endDocument(); |
| } |
| |
| private void writeTaskData(TaskData taskData, String elementName) throws SAXException { |
| AttributesImpl atts = new AttributesImpl(); |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_CONNECTOR_KIND, CDATA, taskData.getConnectorKind()); //$NON-NLS-1$ //$NON-NLS-2$ |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_REPOSITORY_URL, CDATA, taskData.getRepositoryUrl()); //$NON-NLS-1$ //$NON-NLS-2$ |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_TASK_ID, CDATA, taskData.getTaskId()); //$NON-NLS-1$ //$NON-NLS-2$ |
| if (taskData.getVersion() != null) { |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_VERSION, CDATA, taskData.getVersion()); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| handler.startElement("", "", elementName, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| atts.clear(); |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_ATTRIBUTES, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| writeTaskAttribute(taskData.getRoot()); |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_ATTRIBUTES); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.endElement("", "", elementName); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| private void writeTaskAttribute(TaskAttribute attribute) throws SAXException { |
| AttributesImpl atts = new AttributesImpl(); |
| atts.addAttribute("", "", ITaskDataConstants.ATTRIBUTE_ID, CDATA, attribute.getId()); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_ATTRIBUTE, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| atts.clear(); |
| |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_VALUES, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| List<String> values = attribute.getValues(); |
| for (String value : values) { |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_VALUE, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.characters(value.toCharArray(), 0, value.length()); |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_VALUE); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_VALUES); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_OPTIONS, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| writeMap(atts, attribute.getOptions(), ITaskDataConstants.ELEMENT_OPTION); |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_OPTIONS); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_META_DATA, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| writeMap(atts, attribute.getMetaData().getValues(), ITaskDataConstants.ELEMENT_META); |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_META_DATA); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_ATTRIBUTES, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| Map<String, TaskAttribute> children = attribute.getAttributes(); |
| for (TaskAttribute child : children.values()) { |
| writeTaskAttribute(child); |
| } |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_ATTRIBUTES); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_ATTRIBUTE); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| private void writeMap(AttributesImpl atts, Map<String, String> options, String elementName) throws SAXException { |
| for (String key : options.keySet()) { |
| String value = options.get(key); |
| handler.startElement("", "", elementName, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_KEY, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.characters(key.toCharArray(), 0, key.length()); |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_KEY); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.startElement("", "", ITaskDataConstants.ELEMENT_VALUE, atts); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.characters(value.toCharArray(), 0, value.length()); |
| handler.endElement("", "", ITaskDataConstants.ELEMENT_VALUE); //$NON-NLS-1$ //$NON-NLS-2$ |
| handler.endElement("", "", elementName); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| } |
| |
| } |