1 /* 2 * Copyright (C) 2007 Esmertec AG. 3 * Copyright (C) 2007 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.mms.dom.smil.parser; 19 20 import java.io.IOException; 21 import java.io.InputStream; 22 23 import org.w3c.dom.smil.SMILDocument; 24 import org.xml.sax.InputSource; 25 import org.xml.sax.SAXException; 26 import org.xml.sax.XMLReader; 27 import org.xml.sax.helpers.XMLReaderFactory; 28 29 import com.google.android.mms.MmsException; 30 31 public class SmilXmlParser { 32 private XMLReader mXmlReader; 33 private SmilContentHandler mContentHandler; 34 SmilXmlParser()35 public SmilXmlParser() throws MmsException { 36 //FIXME: Now we don't have the SAXParser wrapped inside, 37 // use the Driver class temporarily. 38 System.setProperty("org.xml.sax.driver", "org.xmlpull.v1.sax2.Driver"); 39 40 try { 41 mXmlReader = XMLReaderFactory.createXMLReader(); 42 mContentHandler = new SmilContentHandler(); 43 mXmlReader.setContentHandler(mContentHandler); 44 } catch (SAXException e) { 45 throw new MmsException(e); 46 } 47 } 48 parse(InputStream in)49 public SMILDocument parse(InputStream in) throws IOException, SAXException { 50 mContentHandler.reset(); 51 52 mXmlReader.parse(new InputSource(in)); 53 54 SMILDocument doc = mContentHandler.getSmilDocument(); 55 validateDocument(doc); 56 57 return doc; 58 } 59 validateDocument(SMILDocument doc)60 private void validateDocument(SMILDocument doc) { 61 /* 62 * Calling getBody() will create "smil", "head", and "body" elements if they 63 * are not present. It will also initialize the SequentialTimeElementContainer 64 * member of SMILDocument, which could not be set on creation of the document. 65 * @see com.android.mms.dom.smil.SmilDocumentImpl#getBody() 66 */ 67 doc.getBody(); 68 69 /* 70 * Calling getLayout() will create "layout" element if it is not present. 71 * @see com.android.mms.dom.smil.SmilDocumentImpl#getLayout() 72 */ 73 doc.getLayout(); 74 } 75 } 76