trace/traceviewer/com.nokia.trace.dictionary/src/com/nokia/trace/dictionary/model/DictionaryContentHandler.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/traceviewer/com.nokia.trace.dictionary/src/com/nokia/trace/dictionary/model/DictionaryContentHandler.java Wed Jun 23 14:49:59 2010 +0300
@@ -0,0 +1,310 @@
+/*
+ * Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description:
+ *
+ * Dictionary Content Handler
+ *
+ */
+package com.nokia.trace.dictionary.model;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.ContentHandler;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+
+import com.nokia.trace.dictionary.model.DictionaryContentVariables.ParentDecodeObject;
+import com.nokia.trace.dictionary.model.handlers.DictionaryHandler;
+import com.nokia.trace.dictionary.model.handlers.DictionaryHandlerCreator;
+
+/**
+ * Dictionary Content Handler
+ *
+ */
+public class DictionaryContentHandler implements ContentHandler {
+
+ /**
+ * Tag for metadata
+ */
+ private static final String METADATA_TAG = "options"; //$NON-NLS-1$
+
+ /**
+ * Decode Model
+ */
+ private DictionaryDecodeModel model;
+
+ /**
+ * Handlers for start elements in dictionary file
+ */
+ private ArrayList<DictionaryHandler> startHandlers;
+
+ /**
+ * Handlers for end elements in dictionary file
+ */
+ private ArrayList<DictionaryHandler> endHandlers;
+
+ /**
+ * Metadata handlers
+ */
+ private ArrayList<DictionaryHandler> metadataHandlers;
+
+ /**
+ * Are we catching characters
+ */
+ private boolean catchCharacters;
+
+ /**
+ * Buffer where to store characters
+ */
+ private StringBuffer elementContent;
+
+ /**
+ * Content variables used to get all needed information when creating model
+ */
+ private DictionaryContentVariables variables;
+
+ /**
+ * Unfinished object which will be finished in endElement
+ */
+ private Object unFinishedObject;
+
+ /**
+ * Locator object
+ */
+ private Locator locator;
+
+ /**
+ * Handler creator
+ */
+ private DictionaryHandlerCreator handlerCreator;
+
+ /**
+ * Constructor
+ *
+ * @param model
+ * model
+ * @param handlers
+ * list of metadata handlers
+ */
+ public DictionaryContentHandler(DictionaryDecodeModel model,
+ ArrayList<DictionaryHandler> handlers) {
+ handlerCreator = new DictionaryHandlerCreator(model);
+ this.model = model;
+ this.metadataHandlers = handlers;
+ variables = new DictionaryContentVariables();
+ elementContent = new StringBuffer();
+ startHandlers = handlerCreator.createStartHandlers();
+ endHandlers = handlerCreator.createEndHandlers();
+
+ // Sort metadata handlers
+ handlerCreator.sortHandlers(metadataHandlers);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#characters(char[], int, int)
+ */
+ public void characters(char[] ch, int start, int length)
+ throws SAXException {
+ if (catchCharacters) {
+ elementContent.append(new String(ch, start, length));
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#endDocument()
+ */
+ public void endDocument() throws SAXException {
+ model.clearAfterModelIsReady();
+ model.setValid(true);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#endElement(java.lang.String,
+ * java.lang.String, java.lang.String)
+ */
+ public void endElement(String uri, String localName, String qName)
+ throws SAXException {
+
+ // If processing metadata, use metadata handlers
+ ArrayList<DictionaryHandler> handlers;
+ if (variables.isInsideMetadataBlock() && !qName.equals(METADATA_TAG)) {
+ handlers = metadataHandlers;
+ } else {
+ handlers = endHandlers;
+ }
+
+ int pos = Collections.binarySearch(handlers, qName,
+ new Comparator<Object>() {
+
+ public int compare(Object o1, Object o2) {
+ int val = ((DictionaryHandler) o1).getName().compareTo(
+ (String) o2);
+ return val > 0 ? 1 : val < 0 ? -1 : 0;
+ }
+ });
+
+ // Handler found, insert the right parent element as a parameter
+ if (pos >= 0) {
+ DecodeObject parentObj = null;
+ if (variables.getParentDecodeObject() == ParentDecodeObject.COMPONENT) {
+ parentObj = variables.getPreviousComponent();
+ } else if (variables.getParentDecodeObject() == ParentDecodeObject.GROUP) {
+ parentObj = variables.getPreviousGroup();
+ } else if (variables.getParentDecodeObject() == ParentDecodeObject.TRACE) {
+ parentObj = variables.getTraceInstanceList();
+ } else if (variables.getParentDecodeObject() == ParentDecodeObject.TRACEINSTANCE) {
+ parentObj = variables.getPreviousTrace();
+ }
+ handlers.get(pos).processEndElement(elementContent,
+ unFinishedObject, this, parentObj);
+ }
+
+ // Don't check any more end elements automatically and don't catch
+ // characters
+ catchCharacters = false;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#endPrefixMapping(java.lang.String)
+ */
+ public void endPrefixMapping(String prefix) throws SAXException {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#ignorableWhitespace(char[], int, int)
+ */
+ public void ignorableWhitespace(char[] ch, int start, int length)
+ throws SAXException {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#processingInstruction(java.lang.String,
+ * java.lang.String)
+ */
+ public void processingInstruction(String target, String data)
+ throws SAXException {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#setDocumentLocator(org.xml.sax.Locator)
+ */
+ public void setDocumentLocator(Locator locator) {
+ this.locator = locator;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#skippedEntity(java.lang.String)
+ */
+ public void skippedEntity(String name) throws SAXException {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#startDocument()
+ */
+ public void startDocument() throws SAXException {
+ model.setValid(false);
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#startElement(java.lang.String,
+ * java.lang.String, java.lang.String, org.xml.sax.Attributes)
+ */
+ public void startElement(String uri, String localName, String qName,
+ Attributes atts) throws SAXException {
+
+ // If processing metadata, use metadata handlers
+ ArrayList<DictionaryHandler> handlers;
+ if (variables.isInsideMetadataBlock()) {
+ handlers = metadataHandlers;
+ } else {
+ handlers = startHandlers;
+ }
+
+ int pos = Collections.binarySearch(handlers, qName,
+ new Comparator<Object>() {
+
+ public int compare(Object o1, Object o2) {
+ int val = ((DictionaryHandler) o1).getName().compareTo(
+ (String) o2);
+ return val > 0 ? 1 : val < 0 ? -1 : 0;
+ }
+ });
+ if (pos >= 0) {
+ handlers.get(pos).processStartElement(atts, this);
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.xml.sax.ContentHandler#startPrefixMapping(java.lang.String,
+ * java.lang.String)
+ */
+ public void startPrefixMapping(String prefix, String uri)
+ throws SAXException {
+ }
+
+ /**
+ * Tells this handler to catch element contents
+ *
+ * @param object
+ * unfinished object
+ */
+ public void catchElementContents(Object object) {
+ unFinishedObject = object;
+ catchCharacters = true;
+ elementContent.setLength(0);
+ }
+
+ /**
+ * Gets variables
+ *
+ * @return the variables
+ */
+ public DictionaryContentVariables getVariables() {
+ return variables;
+ }
+
+ /**
+ * Gets locator
+ *
+ * @return locator
+ */
+ public Locator getLocator() {
+ return locator;
+ }
+}