bundles/org.eclipse.team.cvs.ui/src/org/eclipse/team/internal/ccvs/ui/repo/RepositoriesViewContentHandler.java - gerrit/platform/eclipse.platform.team - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2003 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.team.internal.ccvs.ui.repo;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.Stack;

 import org.eclipse.core.runtime.Path;
 import org.eclipse.team.internal.ccvs.core.CVSException;
 import org.eclipse.team.internal.ccvs.core.CVSProviderPlugin;
 import org.eclipse.team.internal.ccvs.core.CVSTag;
 import org.eclipse.team.internal.ccvs.core.ICVSRepositoryLocation;
 import org.eclipse.team.internal.ccvs.core.connection.CVSRepositoryLocation;
 import org.eclipse.team.internal.ccvs.ui.Policy;
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.DefaultHandler;

 public class RepositoriesViewContentHandler extends DefaultHandler {

 	public static final String REPOSITORIES_VIEW_TAG = "repositories-view"; //$NON-NLS-1$

 	public static final String REPOSITORY_TAG = "repository"; //$NON-NLS-1$
 	public static final String WORKING_SET_TAG = "working-set"; //$NON-NLS-1$
 	public static final String CURRENT_WORKING_SET_TAG = "current-working-set"; //$NON-NLS-1$
 	public static final String MODULE_TAG = "module"; //$NON-NLS-1$
 	public static final String TAG_TAG = "tag"; //$NON-NLS-1$
 	public static final String AUTO_REFRESH_FILE_TAG = "auto-refresh-file"; //$NON-NLS-1$

 	public static final String ID_ATTRIBUTE = "id"; //$NON-NLS-1$
 	public static final String NAME_ATTRIBUTE = "name"; //$NON-NLS-1$
 	public static final String PATH_ATTRIBUTE = "path"; //$NON-NLS-1$
 	public static final String FULL_PATH_ATTRIBUTE = "full-path"; //$NON-NLS-1$
 	public static final String TYPE_ATTRIBUTE = "type"; //$NON-NLS-1$
 	public static final String READ_ID_ATTRIBUTE = "read-id"; //$NON-NLS-1$
 	public static final String WRITE_ID_ATTRIBUTE = "write-id"; //$NON-NLS-1$

 	public static final String[] TAG_TYPES = {"head", "branch", "version", "date"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
 	public static final String DEFAULT_TAG_TYPE = "version"; //$NON-NLS-1$
 	public static final String DEFINED_MODULE_TYPE = "defined"; //$NON-NLS-1$

 	private RepositoryManager manager;
 	private StringBuffer buffer = new StringBuffer();
 	private Stack tagStack = new Stack();
 	private RepositoryRoot currentRepositoryRoot;
 	private String currentRemotePath;
 	private List tags;
 	private List autoRefreshFiles;
 	private boolean ignoreElements;

 	public RepositoriesViewContentHandler(RepositoryManager manager) {
 		this.manager = manager;
 	}

 	/**
 	 * @see ContentHandler#characters(char[], int, int)
 	 */
 	public void characters(char[] chars, int startIndex, int length) throws SAXException {
 		buffer.append(chars, startIndex, length);
 	}

 	/**
 	 * @see ContentHandler#endElement(java.lang.String, java.lang.String, java.lang.String)
 	 */
 	public void endElement(String namespaceURI, String localName, String qName) throws SAXException {

 		if (!localName.equals(tagStack.peek())) {
 			throw new SAXException(Policy.bind("RepositoriesViewContentHandler.unmatchedTag", localName)); //$NON-NLS-1$
 		}

 		if (localName.equals(REPOSITORIES_VIEW_TAG)) {
 			// all done
 		} else if (localName.equals(REPOSITORY_TAG)) {
 			if (!ignoreElements) {
 				manager.add(currentRepositoryRoot);
 			}
 			currentRepositoryRoot = null;
 		} else if (localName.equals(WORKING_SET_TAG)) {
 			// This tag is no longer used
 			ignoreElements = false;
 		} else if (localName.equals(CURRENT_WORKING_SET_TAG)) {
 			// This tag is no longer used
 			ignoreElements = false;
 		} else if (localName.equals(MODULE_TAG)) {
 			if (! ignoreElements && currentRepositoryRoot != null) {
 				currentRepositoryRoot.addTags(currentRemotePath,
 					(CVSTag[]) tags.toArray(new CVSTag[tags.size()]));
 				currentRepositoryRoot.setAutoRefreshFiles(currentRemotePath,
 					(String[]) autoRefreshFiles.toArray(new String[autoRefreshFiles.size()]));
 			}
 		}
 		tagStack.pop();
 	}

 	/**
 	 * @see ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
 	 */
 	public void startElement(
 			String namespaceURI,
 			String localName,
 			String qName,
 			Attributes atts)
 			throws SAXException {

 		if (localName.equals(REPOSITORIES_VIEW_TAG)) {
 			// just started
 		} else if (localName.equals(REPOSITORY_TAG)) {
 			String id = atts.getValue(ID_ATTRIBUTE);
 			if (id == null) {
 				throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", REPOSITORY_TAG, ID_ATTRIBUTE)); //$NON-NLS-1$
 			}
 			ICVSRepositoryLocation root;
 			try {
 				root = CVSProviderPlugin.getPlugin().getRepository(id);
 			} catch (CVSException e) {
 				throw new SAXException(Policy.bind("RepositoriesViewContentHandler.errorCreatingRoot", id), e); //$NON-NLS-1$
 			}
 			currentRepositoryRoot = new RepositoryRoot(root);
 			String name = atts.getValue(NAME_ATTRIBUTE);
 			if (name != null) {
 				currentRepositoryRoot.setName(name);
 			}
 			String readLocation = atts.getValue(READ_ID_ATTRIBUTE);
 			((CVSRepositoryLocation)root).setReadLocation(readLocation);
 			String writeLocation = atts.getValue(WRITE_ID_ATTRIBUTE);
 			((CVSRepositoryLocation)root).setWriteLocation(writeLocation);
 		} else if (localName.equals(WORKING_SET_TAG)) {
 			String name = atts.getValue(NAME_ATTRIBUTE);
 			if (name == null) {
 				throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", WORKING_SET_TAG, NAME_ATTRIBUTE)); //$NON-NLS-1$
 			}
 			// Ignore any elements until the corresponding end tag is reached
 			ignoreElements = true;
 		}  else if (localName.equals(MODULE_TAG)) {
 			String path = atts.getValue(PATH_ATTRIBUTE);
 			if (path == null) {
 				throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", MODULE_TAG, PATH_ATTRIBUTE)); //$NON-NLS-1$
 			}
 			String type = atts.getValue(TYPE_ATTRIBUTE);
 			if (type != null && type.equals(DEFINED_MODULE_TYPE)) {
 				path = RepositoryRoot.asDefinedModulePath(path);
 			}
 			startModule(path);
 		} else if (localName.equals(TAG_TAG)) {
 			String type = atts.getValue(TYPE_ATTRIBUTE);
 			if (type == null) {
 				type = DEFAULT_TAG_TYPE;
 			}
 			String name = atts.getValue(NAME_ATTRIBUTE);
 			if (name == null) {
 				throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", TAG_TAG, NAME_ATTRIBUTE)); //$NON-NLS-1$
 			}
 			tags.add(new CVSTag(name, getCVSTagType(type)));
 		} else if (localName.equals(AUTO_REFRESH_FILE_TAG)) {
 			String path = atts.getValue(FULL_PATH_ATTRIBUTE);
 			if (path == null) {
 				// get the old path attribute format which was relative to the module
 				path = atts.getValue(PATH_ATTRIBUTE);
 				if (path == null) {
 					throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", AUTO_REFRESH_FILE_TAG, FULL_PATH_ATTRIBUTE)); //$NON-NLS-1$
 				}
 				if (RepositoryRoot.isDefinedModuleName(currentRemotePath)) {
 					path = null;
 				} else {
 					path = new Path(currentRemotePath).append(path).toString();
 				}
 			}
 			if (path != null) autoRefreshFiles.add(path);
 		} else if (localName.equals(CURRENT_WORKING_SET_TAG)) {
 			// Ignore any elements until the corresponding end tag is reached
 			ignoreElements = true;
 		}
 		// empty buffer
 		buffer = new StringBuffer();
 		tagStack.push(localName);
 	}

 	private void startModule(String path) {
 		currentRemotePath = path;
 		tags = new ArrayList();
 		autoRefreshFiles = new ArrayList();
 	}

 	/**
 	 * Method getCVSTagType.
 	 * @param type
 	 */
 	public int getCVSTagType(String type) {
 		for (int i = 0; i < TAG_TYPES.length; i++) {
 			if (TAG_TYPES[i].equals(type))
 				return i;
 		}
 		return CVSTag.VERSION;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2003 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.team.internal.ccvs.ui.repo;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Stack;

	import org.eclipse.core.runtime.Path;
	import org.eclipse.team.internal.ccvs.core.CVSException;
	import org.eclipse.team.internal.ccvs.core.CVSProviderPlugin;
	import org.eclipse.team.internal.ccvs.core.CVSTag;
	import org.eclipse.team.internal.ccvs.core.ICVSRepositoryLocation;
	import org.eclipse.team.internal.ccvs.core.connection.CVSRepositoryLocation;
	import org.eclipse.team.internal.ccvs.ui.Policy;
	import org.xml.sax.Attributes;
	import org.xml.sax.SAXException;
	import org.xml.sax.helpers.DefaultHandler;

	public class RepositoriesViewContentHandler extends DefaultHandler {

	public static final String REPOSITORIES_VIEW_TAG = "repositories-view"; //$NON-NLS-1$

	public static final String REPOSITORY_TAG = "repository"; //$NON-NLS-1$
	public static final String WORKING_SET_TAG = "working-set"; //$NON-NLS-1$
	public static final String CURRENT_WORKING_SET_TAG = "current-working-set"; //$NON-NLS-1$
	public static final String MODULE_TAG = "module"; //$NON-NLS-1$
	public static final String TAG_TAG = "tag"; //$NON-NLS-1$
	public static final String AUTO_REFRESH_FILE_TAG = "auto-refresh-file"; //$NON-NLS-1$

	public static final String ID_ATTRIBUTE = "id"; //$NON-NLS-1$
	public static final String NAME_ATTRIBUTE = "name"; //$NON-NLS-1$
	public static final String PATH_ATTRIBUTE = "path"; //$NON-NLS-1$
	public static final String FULL_PATH_ATTRIBUTE = "full-path"; //$NON-NLS-1$
	public static final String TYPE_ATTRIBUTE = "type"; //$NON-NLS-1$
	public static final String READ_ID_ATTRIBUTE = "read-id"; //$NON-NLS-1$
	public static final String WRITE_ID_ATTRIBUTE = "write-id"; //$NON-NLS-1$

	public static final String[] TAG_TYPES = {"head", "branch", "version", "date"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
	public static final String DEFAULT_TAG_TYPE = "version"; //$NON-NLS-1$
	public static final String DEFINED_MODULE_TYPE = "defined"; //$NON-NLS-1$

	private RepositoryManager manager;
	private StringBuffer buffer = new StringBuffer();
	private Stack tagStack = new Stack();
	private RepositoryRoot currentRepositoryRoot;
	private String currentRemotePath;
	private List tags;
	private List autoRefreshFiles;
	private boolean ignoreElements;

	public RepositoriesViewContentHandler(RepositoryManager manager) {
	this.manager = manager;
	}

	/**
	* @see ContentHandler#characters(char[], int, int)
	*/
	public void characters(char[] chars, int startIndex, int length) throws SAXException {
	buffer.append(chars, startIndex, length);
	}

	/**
	* @see ContentHandler#endElement(java.lang.String, java.lang.String, java.lang.String)
	*/
	public void endElement(String namespaceURI, String localName, String qName) throws SAXException {

	if (!localName.equals(tagStack.peek())) {
	throw new SAXException(Policy.bind("RepositoriesViewContentHandler.unmatchedTag", localName)); //$NON-NLS-1$
	}

	if (localName.equals(REPOSITORIES_VIEW_TAG)) {
	// all done
	} else if (localName.equals(REPOSITORY_TAG)) {
	if (!ignoreElements) {
	manager.add(currentRepositoryRoot);
	}
	currentRepositoryRoot = null;
	} else if (localName.equals(WORKING_SET_TAG)) {
	// This tag is no longer used
	ignoreElements = false;
	} else if (localName.equals(CURRENT_WORKING_SET_TAG)) {
	// This tag is no longer used
	ignoreElements = false;
	} else if (localName.equals(MODULE_TAG)) {
	if (! ignoreElements && currentRepositoryRoot != null) {
	currentRepositoryRoot.addTags(currentRemotePath,
	(CVSTag[]) tags.toArray(new CVSTag[tags.size()]));
	currentRepositoryRoot.setAutoRefreshFiles(currentRemotePath,
	(String[]) autoRefreshFiles.toArray(new String[autoRefreshFiles.size()]));
	}
	}
	tagStack.pop();
	}

	/**
	* @see ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
	*/
	public void startElement(
	String namespaceURI,
	String localName,
	String qName,
	Attributes atts)
	throws SAXException {

	if (localName.equals(REPOSITORIES_VIEW_TAG)) {
	// just started
	} else if (localName.equals(REPOSITORY_TAG)) {
	String id = atts.getValue(ID_ATTRIBUTE);
	if (id == null) {
	throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", REPOSITORY_TAG, ID_ATTRIBUTE)); //$NON-NLS-1$
	}
	ICVSRepositoryLocation root;
	try {
	root = CVSProviderPlugin.getPlugin().getRepository(id);
	} catch (CVSException e) {
	throw new SAXException(Policy.bind("RepositoriesViewContentHandler.errorCreatingRoot", id), e); //$NON-NLS-1$
	}
	currentRepositoryRoot = new RepositoryRoot(root);
	String name = atts.getValue(NAME_ATTRIBUTE);
	if (name != null) {
	currentRepositoryRoot.setName(name);
	}
	String readLocation = atts.getValue(READ_ID_ATTRIBUTE);
	((CVSRepositoryLocation)root).setReadLocation(readLocation);
	String writeLocation = atts.getValue(WRITE_ID_ATTRIBUTE);
	((CVSRepositoryLocation)root).setWriteLocation(writeLocation);
	} else if (localName.equals(WORKING_SET_TAG)) {
	String name = atts.getValue(NAME_ATTRIBUTE);
	if (name == null) {
	throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", WORKING_SET_TAG, NAME_ATTRIBUTE)); //$NON-NLS-1$
	}
	// Ignore any elements until the corresponding end tag is reached
	ignoreElements = true;
	} else if (localName.equals(MODULE_TAG)) {
	String path = atts.getValue(PATH_ATTRIBUTE);
	if (path == null) {
	throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", MODULE_TAG, PATH_ATTRIBUTE)); //$NON-NLS-1$
	}
	String type = atts.getValue(TYPE_ATTRIBUTE);
	if (type != null && type.equals(DEFINED_MODULE_TYPE)) {
	path = RepositoryRoot.asDefinedModulePath(path);
	}
	startModule(path);
	} else if (localName.equals(TAG_TAG)) {
	String type = atts.getValue(TYPE_ATTRIBUTE);
	if (type == null) {
	type = DEFAULT_TAG_TYPE;
	}
	String name = atts.getValue(NAME_ATTRIBUTE);
	if (name == null) {
	throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", TAG_TAG, NAME_ATTRIBUTE)); //$NON-NLS-1$
	}
	tags.add(new CVSTag(name, getCVSTagType(type)));
	} else if (localName.equals(AUTO_REFRESH_FILE_TAG)) {
	String path = atts.getValue(FULL_PATH_ATTRIBUTE);
	if (path == null) {
	// get the old path attribute format which was relative to the module
	path = atts.getValue(PATH_ATTRIBUTE);
	if (path == null) {
	throw new SAXException(Policy.bind("RepositoriesViewContentHandler.missingAttribute", AUTO_REFRESH_FILE_TAG, FULL_PATH_ATTRIBUTE)); //$NON-NLS-1$
	}
	if (RepositoryRoot.isDefinedModuleName(currentRemotePath)) {
	path = null;
	} else {
	path = new Path(currentRemotePath).append(path).toString();
	}
	}
	if (path != null) autoRefreshFiles.add(path);
	} else if (localName.equals(CURRENT_WORKING_SET_TAG)) {
	// Ignore any elements until the corresponding end tag is reached
	ignoreElements = true;
	}
	// empty buffer
	buffer = new StringBuffer();
	tagStack.push(localName);
	}

	private void startModule(String path) {
	currentRemotePath = path;
	tags = new ArrayList();
	autoRefreshFiles = new ArrayList();
	}

	/**
	* Method getCVSTagType.
	* @param type
	*/
	public int getCVSTagType(String type) {
	for (int i = 0; i < TAG_TYPES.length; i++) {
	if (TAG_TYPES[i].equals(type))
	return i;
	}
	return CVSTag.VERSION;
	}

	}