| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.royale.compiler.internal.fxg.sax; |
| |
| import java.io.IOException; |
| import java.io.Reader; |
| import java.util.Collection; |
| |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.parsers.SAXParser; |
| import javax.xml.parsers.SAXParserFactory; |
| |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| import org.apache.royale.compiler.fxg.IFXGParser; |
| import org.apache.royale.compiler.fxg.dom.IFXGNode; |
| import org.apache.royale.compiler.problems.FXGParserProblem; |
| import org.apache.royale.compiler.problems.ICompilerProblem; |
| |
| /** |
| * FXGSAXParser implements a SAX parser for an input stream that represents a |
| * FXG document |
| */ |
| public class FXGSAXParser implements IFXGParser |
| { |
| private FXGSAXScanner scanner = null; |
| |
| /** |
| * Constructs a new FXGSAXParser. |
| * |
| * The scanner is initialized so that nodes and skipped elements can be |
| * registered |
| */ |
| public FXGSAXParser() |
| { |
| |
| } |
| |
| /** |
| * Parses an FXG document InputStream to produce an IFXGNode based DOM. |
| * |
| * @param reader - input to be parsed |
| * @param problems problem collection used to collect problems occurred within this method |
| * @return the root IFXGNode of the DOM |
| */ |
| @Override |
| public IFXGNode parse(Reader reader, Collection<ICompilerProblem> problems) |
| { |
| return parse(reader, null, problems); |
| } |
| |
| /** |
| * Parses an FXG document InputStream to produce an IFXGNode based DOM. |
| * |
| * @param reader - input to be parsed |
| * @param documentPath - the path of the FXG document which can be useful |
| * for error reporting. |
| * @param problems problem collection used to collect problems occurred within this method |
| * @return the root IFXGNode of the DOM |
| */ |
| @Override |
| public IFXGNode parse(Reader reader, String documentPath, Collection<ICompilerProblem> problems) |
| { |
| try |
| { |
| scanner = new FXGSAXScanner(problems); |
| scanner.setDocumentPath(documentPath); |
| SAXParserFactory saxFactory = SAXParserFactory.newInstance(); |
| saxFactory.setValidating(false); |
| saxFactory.setNamespaceAware(true); |
| SAXParser parser = saxFactory.newSAXParser(); |
| InputSource is = new InputSource(reader); |
| parser.parse(is, scanner); |
| |
| IFXGNode node = scanner.getRootNode(); |
| return node; |
| } |
| catch (IOException ex) |
| { |
| problems.add(new FXGParserProblem(documentPath, scanner.getStartLine(), |
| scanner.getStartColumn(), ex.getLocalizedMessage())); |
| } |
| catch (ParserConfigurationException ex) |
| { |
| problems.add(new FXGParserProblem(documentPath, scanner.getStartLine(), |
| scanner.getStartColumn(), ex.getLocalizedMessage())); |
| } |
| catch (SAXException ex) |
| { |
| problems.add(new FXGParserProblem(documentPath, scanner.getStartLine(), |
| scanner.getStartColumn(), ex.getLocalizedMessage())); |
| } |
| finally |
| { |
| try |
| { |
| reader.close(); |
| } |
| catch(Exception e) |
| { |
| //do nothing |
| } |
| } |
| |
| return null; |
| } |
| |
| } |