* Andy Clark,16 Jan 1973,Cincinnati ** produces the following XML "document" as represented by the * XNI streaming document information: *
* <?xml version='1.0' encoding='UTF-8' standalone='true'?> * <!DOCTYPE csv [ * <!ELEMENT csv (row)*> * <!ELEMENT row (col)*> * <!ELEMENT col (#PCDATA)> * ]> * <csv> * <row> * <col>Andy Clark</col> * <col>16 Jan 1973</col> * <col>Cincinnati</col> * </row> * </csv> ** * @author Andy Clark, IBM * * @version $Id: CSVConfiguration.java,v 1.6 2002/09/24 23:07:52 elena Exp $ */ public class CSVConfiguration extends AbstractConfiguration { // // Constants // /** A QName for the <csv> element name. */ protected static final QName CSV = new QName(null, null, "csv", null); /** A QName for the <row> element name. */ protected static final QName ROW = new QName(null, null, "row", null); /** A QName for the <col> element name. */ protected static final QName COL = new QName(null, null, "col", null); /** An empty list of attributes. */ protected static final XMLAttributes EMPTY_ATTRS = new XMLAttributesImpl(); /** A newline XMLString. */ private final XMLString NEWLINE = new XMLStringBuffer("\n"); /** A newline + one space XMLString. */ private final XMLString NEWLINE_ONE_SPACE = new XMLStringBuffer("\n "); /** A newline + two spaces XMLString. */ private final XMLString NEWLINE_TWO_SPACES = new XMLStringBuffer("\n "); // // Data // /** * A string buffer for use in copying string into an XMLString * object for passing to the characters method. */ private final XMLStringBuffer fStringBuffer = new XMLStringBuffer(); // // XMLParserConfiguration methods // /** * Parse an XML document. *
* The parser can use this method to instruct this configuration * to begin parsing an XML document from any valid input source * (a character stream, a byte stream, or a URI). *
* Parsers may not invoke this method while a parse is in progress. * Once a parse is complete, the parser may then parse another XML * document. *
* This method is synchronous: it will not return until parsing * has ended. If a client application wants to terminate * parsing early, it should throw an exception. * * @param source The input source for the top-level of the * XML document. * * @exception XNIException Any XNI exception, possibly wrapping * another exception. * @exception IOException An IO exception from the parser, possibly * from a byte stream or character stream * supplied by the parser. */ public void parse(XMLInputSource source) throws IOException, XNIException { // get reader openInputSourceStream(source); Reader reader = source.getCharacterStream(); if (reader == null) { InputStream stream = source.getByteStream(); reader = new InputStreamReader(stream); } BufferedReader bufferedReader = new BufferedReader(reader); // start document if (fDocumentHandler != null) { fDocumentHandler.startDocument(null, "UTF-8", new NamespaceSupport(), null); fDocumentHandler.xmlDecl("1.0", "UTF-8", "true", null); fDocumentHandler.doctypeDecl("csv", null, null, null); } if (fDTDHandler != null) { fDTDHandler.startDTD(null, null); fDTDHandler.elementDecl("csv", "(row)*", null); fDTDHandler.elementDecl("row", "(col)*", null); fDTDHandler.elementDecl("col", "(#PCDATA)", null); } if (fDTDContentModelHandler != null) { fDTDContentModelHandler.startContentModel("csv", null); fDTDContentModelHandler.startGroup(null); fDTDContentModelHandler.element("row", null); fDTDContentModelHandler.endGroup(null); short csvOccurs = XMLDTDContentModelHandler.OCCURS_ZERO_OR_MORE; fDTDContentModelHandler.occurrence(csvOccurs, null); fDTDContentModelHandler.endContentModel(null); fDTDContentModelHandler.startContentModel("row", null); fDTDContentModelHandler.startGroup(null); fDTDContentModelHandler.element("col", null); fDTDContentModelHandler.endGroup(null); short rowOccurs = XMLDTDContentModelHandler.OCCURS_ZERO_OR_MORE; fDTDContentModelHandler.occurrence(rowOccurs, null); fDTDContentModelHandler.endContentModel(null); fDTDContentModelHandler.startContentModel("col", null); fDTDContentModelHandler.startGroup(null); fDTDContentModelHandler.pcdata(null); fDTDContentModelHandler.endGroup(null); fDTDContentModelHandler.endContentModel(null); } if (fDTDHandler != null) { fDTDHandler.endDTD(null); } if (fDocumentHandler != null) { fDocumentHandler.startElement(CSV, EMPTY_ATTRS, null); } // read lines String line; while ((line = bufferedReader.readLine()) != null) { if (fDocumentHandler != null) { fDocumentHandler.ignorableWhitespace(NEWLINE_ONE_SPACE, null); fDocumentHandler.startElement(ROW, EMPTY_ATTRS, null); StringTokenizer tokenizer = new StringTokenizer(line, ","); while (tokenizer.hasMoreTokens()) { fDocumentHandler.ignorableWhitespace(NEWLINE_TWO_SPACES, null); fDocumentHandler.startElement(COL, EMPTY_ATTRS, null); String token = tokenizer.nextToken(); fStringBuffer.clear(); fStringBuffer.append(token); fDocumentHandler.characters(fStringBuffer, null); fDocumentHandler.endElement(COL, null); } fDocumentHandler.ignorableWhitespace(NEWLINE_ONE_SPACE, null); fDocumentHandler.endElement(ROW, null); } } bufferedReader.close(); // end document if (fDocumentHandler != null) { fDocumentHandler.ignorableWhitespace(NEWLINE, null); fDocumentHandler.endElement(CSV, null); fDocumentHandler.endDocument(null); } } // parse(XMLInputSource) // NOTE: The following methods are overloaded to ignore setting // of parser state so that this configuration does not // throw configuration exceptions for features and properties // that it doesn't care about. public void setFeature(String featureId, boolean state) {} public boolean getFeature(String featureId) { return false; } public void setProperty(String propertyId, Object value) {} public Object getProperty(String propertyId) { return null; } } // class CSVConfiguration