Example usage for org.xml.sax Attributes getValue

List of usage examples for org.xml.sax Attributes getValue

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Introduction

In this page you can find the example usage for org.xml.sax Attributes getValue.

Prototype

public abstract String getValue(String qName);

Source Link

Document

Look up an attribute's value by XML qualified (prefixed) name.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
    parser.parse(new File("test.xml"), new DefaultHandler() {

        @Override// w ww.  ja  v  a 2  s  . com
        public void startElement(String uri, String localName, String qName, Attributes atts)
                throws SAXException {
            if (qName.equals("passenger")) {
                System.out.println("id = " + atts.getValue(0));
            }
        }

        @Override
        public void endElement(String uri, String localName, String qName) throws SAXException {
        }

        @Override
        public void characters(char[] ch, int start, int length) throws SAXException {
            String text = new String(ch, start, length);
            if (!text.trim().isEmpty()) {
                System.out.println("name " + text);
            }
        }
    });
}

From source file:SAXTest.java

public static void main(String[] args) throws Exception {
    String url;//www .j a va 2 s  . c  o m
    if (args.length == 0) {
        url = "http://www.w3c.org";
        System.out.println("Using " + url);
    } else
        url = args[0];

    DefaultHandler handler = new DefaultHandler() {
        public void startElement(String namespaceURI, String lname, String qname, Attributes attrs) {
            if (lname.equals("a") && attrs != null) {
                for (int i = 0; i < attrs.getLength(); i++) {
                    String aname = attrs.getLocalName(i);
                    if (aname.equals("href"))
                        System.out.println(attrs.getValue(i));
                }
            }
        }
    };

    SAXParserFactory factory = SAXParserFactory.newInstance();
    factory.setNamespaceAware(true);
    SAXParser saxParser = factory.newSAXParser();
    InputStream in = new URL(url).openStream();
    saxParser.parse(in, handler);
}

From source file:efen.parsewiki.WikipediaDocumentSequence.java

public static void main(final String arg[])
        throws ParserConfigurationException, SAXException, IOException, JSAPException, ClassNotFoundException {
    SimpleJSAP jsap = new SimpleJSAP(WikipediaDocumentSequence.class.getName(),
            "Computes the redirects of a Wikipedia dump and integrate them into an existing virtual document resolver for the dump.",
            new Parameter[] { new Switch("bzip2", 'b', "bzip2", "The file is compressed with bzip2"),
                    new Switch("iso", 'i', "iso",
                            "Use ISO-8859-1 coding internally (i.e., just use the lower eight bits of each character)."),
                    new FlaggedOption("width", JSAP.INTEGER_PARSER, Integer.toString(Long.SIZE),
                            JSAP.NOT_REQUIRED, 'w', "width",
                            "The width, in bits, of the signatures used to sign the function from URIs to their rank."),
                    new UnflaggedOption("file", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The file containing the Wikipedia dump."),
                    new UnflaggedOption("baseURL", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The base URL for the collection (e.g., http://en.wikipedia.org/wiki/)."),
                    new UnflaggedOption("uris", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The URIs of the documents in the collection (generated by ScanMetadata)."),
                    new UnflaggedOption("vdr", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The name of a precomputed virtual document resolver for the collection."),
                    new UnflaggedOption("redvdr", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The name of the resulting virtual document resolver.") });

    JSAPResult jsapResult = jsap.parse(arg);
    if (jsap.messagePrinted())
        return;//from w w  w .java2  s. c  om

    final SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
    saxParserFactory.setNamespaceAware(true);
    final Object2ObjectOpenHashMap<MutableString, String> redirects = new Object2ObjectOpenHashMap<MutableString, String>();
    final String baseURL = jsapResult.getString("baseURL");
    final ProgressLogger progressLogger = new ProgressLogger(LOGGER);
    progressLogger.itemsName = "redirects";
    progressLogger.start("Extracting redirects...");

    final SAXParser parser = saxParserFactory.newSAXParser();
    final DefaultHandler handler = new DefaultHandler() {
        private boolean inTitle;
        private MutableString title = new MutableString();

        @Override
        public void startElement(String uri, String localName, String qName, Attributes attributes)
                throws SAXException {
            if ("page".equals(localName)) {
                inTitle = false;
                title.length(0);
            } else if ("title".equals(localName) && title.length() == 0)
                inTitle = true; // We catch only the first title element.
            else if ("redirect".equals(localName) && attributes.getValue("title") != null) {
                progressLogger.update();
                redirects.put(title.copy(), attributes.getValue("title"));
            }
        }

        @Override
        public void endElement(String uri, String localName, String qName) throws SAXException {
            if ("title".equals(localName))
                inTitle = false;
        }

        @Override
        public void characters(char[] ch, int start, int length) throws SAXException {
            if (inTitle)
                title.append(ch, start, length);
        }

        @Override
        public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {
            if (inTitle)
                title.append(ch, start, length);
        }
    };

    InputStream in = new FileInputStream(jsapResult.getString("file"));
    if (jsapResult.userSpecified("bzip2"))
        in = new BZip2CompressorInputStream(in);
    parser.parse(new InputSource(new InputStreamReader(new FastBufferedInputStream(in), Charsets.UTF_8)),
            handler);
    progressLogger.done();

    final Object2LongLinkedOpenHashMap<MutableString> resolved = new Object2LongLinkedOpenHashMap<MutableString>();
    final VirtualDocumentResolver vdr = (VirtualDocumentResolver) BinIO.loadObject(jsapResult.getString("vdr"));

    progressLogger.expectedUpdates = redirects.size();
    progressLogger.start("Examining redirects...");

    for (Map.Entry<MutableString, String> e : redirects.entrySet()) {
        final MutableString start = new MutableString().append(baseURL)
                .append(Encoder.encodeTitleToUrl(e.getKey().toString(), true));
        final MutableString end = new MutableString().append(baseURL)
                .append(Encoder.encodeTitleToUrl(e.getValue(), true));
        final long s = vdr.resolve(start);
        if (s == -1) {
            final long t = vdr.resolve(end);
            if (t != -1)
                resolved.put(start.copy(), t);
            else
                LOGGER.warn("Failed redirect: " + start + " -> " + end);
        } else
            LOGGER.warn("URL " + start + " is already known to the virtual document resolver");

        progressLogger.lightUpdate();
    }

    progressLogger.done();

    //System.err.println(resolved);

    final Iterable<MutableString> allURIs = Iterables
            .concat(new FileLinesCollection(jsapResult.getString("uris"), "UTF-8"), resolved.keySet());
    final long numberOfDocuments = vdr.numberOfDocuments();

    final TransformationStrategy<CharSequence> transformationStrategy = jsapResult.userSpecified("iso")
            ? TransformationStrategies.iso()
            : TransformationStrategies.utf16();

    BinIO.storeObject(new URLMPHVirtualDocumentResolver(new SignedRedirectedStringMap(numberOfDocuments,
            new ShiftAddXorSignedStringMap(allURIs.iterator(),
                    new MWHCFunction.Builder<CharSequence>().keys(allURIs).transform(transformationStrategy)
                            .build(),
                    jsapResult.getInt("width")),
            resolved.values().toLongArray())), jsapResult.getString("redvdr"));
}

From source file:it.unimi.di.wikipedia.parsing.NamespacedWikipediaDocumentSequence.java

public static void main(final String arg[])
        throws ParserConfigurationException, SAXException, IOException, JSAPException, ClassNotFoundException {
    SimpleJSAP jsap = new SimpleJSAP(NamespacedWikipediaDocumentSequence.class.getName(),
            "Computes the redirects of a Wikipedia dump and integrate them into an existing virtual document resolver for the dump.",
            new Parameter[] { new Switch("bzip2", 'b', "bzip2", "The file is compressed with bzip2"),
                    new Switch("iso", 'i', "iso",
                            "Use ISO-8859-1 coding internally (i.e., just use the lower eight bits of each character)."),
                    new FlaggedOption("width", JSAP.INTEGER_PARSER, Integer.toString(Long.SIZE),
                            JSAP.NOT_REQUIRED, 'w', "width",
                            "The width, in bits, of the signatures used to sign the function from URIs to their rank."),
                    new UnflaggedOption("file", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The file containing the Wikipedia dump."),
                    new UnflaggedOption("baseURL", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The base URL for the collection (e.g., http://en.wikipedia.org/wiki/)."),
                    new UnflaggedOption("uris", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The URIs of the documents in the collection (generated by ScanMetadata)."),
                    new UnflaggedOption("vdr", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The name of a precomputed virtual document resolver for the collection."),
                    new UnflaggedOption("redvdr", JSAP.STRING_PARSER, JSAP.REQUIRED,
                            "The name of the resulting virtual document resolver.") });

    JSAPResult jsapResult = jsap.parse(arg);
    if (jsap.messagePrinted())
        return;//  w  ww . ja va 2  s.co  m

    final SAXParserFactory saxParserFactory = SAXParserFactory.newInstance();
    saxParserFactory.setNamespaceAware(true);
    final Object2ObjectOpenHashMap<MutableString, String> redirects = new Object2ObjectOpenHashMap<MutableString, String>();
    final String baseURL = jsapResult.getString("baseURL");
    final ProgressLogger progressLogger = new ProgressLogger(LOGGER);
    progressLogger.itemsName = "redirects";
    progressLogger.start("Extracting redirects...");

    final SAXParser parser = saxParserFactory.newSAXParser();
    final DefaultHandler handler = new DefaultHandler() {
        private boolean inTitle;
        private MutableString title = new MutableString();

        @Override
        public void startElement(String uri, String localName, String qName, Attributes attributes)
                throws SAXException {
            if ("page".equals(localName)) {
                inTitle = false;
                title.length(0);
            } else if ("title".equals(localName) && title.length() == 0)
                inTitle = true; // We catch only the first title element.
            else if ("redirect".equals(localName) && attributes.getValue("title") != null) {
                progressLogger.update();
                redirects.put(title.copy(), attributes.getValue("title"));
            }
        }

        @Override
        public void endElement(String uri, String localName, String qName) throws SAXException {
            if ("title".equals(localName))
                inTitle = false;
        }

        @Override
        public void characters(char[] ch, int start, int length) throws SAXException {
            if (inTitle)
                title.append(ch, start, length);
        }

        @Override
        public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException {
            if (inTitle)
                title.append(ch, start, length);
        }
    };

    InputStream in = new FileInputStream(jsapResult.getString("file"));
    if (jsapResult.userSpecified("bzip2"))
        in = new BZip2CompressorInputStream(in);
    parser.parse(new InputSource(new InputStreamReader(new FastBufferedInputStream(in), Charsets.UTF_8)),
            handler);
    progressLogger.done();

    final Object2LongLinkedOpenHashMap<MutableString> resolved = new Object2LongLinkedOpenHashMap<MutableString>();
    final VirtualDocumentResolver vdr = (VirtualDocumentResolver) BinIO.loadObject(jsapResult.getString("vdr"));

    progressLogger.expectedUpdates = redirects.size();
    progressLogger.start("Examining redirects...");

    for (Map.Entry<MutableString, String> e : redirects.entrySet()) {
        final MutableString start = new MutableString().append(baseURL)
                .append(Encoder.encodeTitleToUrl(e.getKey().toString(), true));
        final MutableString end = new MutableString().append(baseURL)
                .append(Encoder.encodeTitleToUrl(e.getValue(), true));
        final long s = vdr.resolve(start);
        if (s == -1) {
            final long t = vdr.resolve(end);
            if (t != -1)
                resolved.put(start.copy(), t);
            else
                LOGGER.warn("Failed redirect: " + start + " -> " + end);
        } else
            LOGGER.warn("URL " + start + " is already known to the virtual document resolver");

        progressLogger.lightUpdate();
    }

    progressLogger.done();

    //System.err.println(resolved);

    final Iterable<MutableString> allURIs = Iterables
            .concat(new FileLinesCollection(jsapResult.getString("uris"), "UTF-8"), resolved.keySet());
    final long numberOfDocuments = vdr.numberOfDocuments();

    final TransformationStrategy<CharSequence> transformationStrategy = jsapResult.userSpecified("iso")
            ? TransformationStrategies.iso()
            : TransformationStrategies.utf16();

    BinIO.storeObject(new URLMPHVirtualDocumentResolver(new SignedRedirectedStringMap(numberOfDocuments,
            new ShiftAddXorSignedStringMap(allURIs.iterator(),
                    new MWHCFunction.Builder<CharSequence>().keys(allURIs).transform(transformationStrategy)
                            .build(),
                    jsapResult.getInt("width")),
            resolved.values().toLongArray())), jsapResult.getString("redvdr"));
}

From source file:Main.java

public static int getIntAttribute(Attributes attr, String name, int defaultVal) {
    String value = attr.getValue(name);
    if (value == null)
        return defaultVal;

    try {//  w w  w. j  a  v a2 s.c  o m
        return Integer.parseInt(value);
    } catch (Exception ex) {
        return defaultVal;
    }
}

From source file:Main.java

/**
 * Returns an attribute value as a Integer value.
 * @param attributes the Attributes object
 * @param name the name of the attribute
 * @return the attribute value as an Integer or null if the attribute is missing
 *//*  w w  w  .  j  a  va 2 s.  com*/
public static Integer getAttributeAsInteger(Attributes attributes, String name) {
    String s = attributes.getValue(name);
    if (s == null) {
        return null;
    } else {
        return new Integer(s);
    }
}

From source file:Main.java

/**
 * Returns an attribute value as a boolean value.
 * @param attributes the Attributes object
 * @param name the name of the attribute
 * @param defaultValue the default value if the attribute is not specified
 * @return the attribute value as a boolean
 *///from w  ww .j  ava  2s . c  o m
public static boolean getAttributeAsBoolean(Attributes attributes, String name, boolean defaultValue) {
    String s = attributes.getValue(name);
    if (s == null) {
        return defaultValue;
    } else {
        return Boolean.valueOf(s).booleanValue();
    }
}

From source file:Main.java

/**
 * Returns an attribute value as a glyph position adjustments array. The string value
 * is expected to be a non-empty sequence of either Z<repeat> or <number>, where the
 * former encodes a repeat count (of zeroes) and the latter encodes a integer number,
 * and where each item is separated by whitespace.
 * @param attributes the Attributes object
 * @param name the name of the attribute
 * @return the position adjustments array
 */// w  ww. j  ava2 s.com
public static int[][] getAttributeAsPositionAdjustments(Attributes attributes, String name) {
    String s = attributes.getValue(name);
    if (s == null) {
        return null;
    } else {
        return decodePositionAdjustments(s.trim());
    }
}

From source file:Main.java

/**
 * Returns an attribute value as a int value.
 * @param attributes the Attributes object
 * @param name the name of the attribute
 * @param defaultValue the default value if the attribute is not specified
 * @return the attribute value as an int
 *///www.  j a v a2 s .  c om
public static int getAttributeAsInt(Attributes attributes, String name, int defaultValue) {
    String s = attributes.getValue(name);
    if (s == null) {
        return defaultValue;
    } else {
        return Integer.parseInt(s);
    }
}

From source file:Main.java

/**
 * Returns an attribute value as a int value.
 * @param attributes the Attributes object
 * @param name the name of the attribute
 * @return the attribute value as an int
 * @throws SAXException if the attribute is missing
 *///from   w w w . ja v  a  2s  . c o  m
public static int getAttributeAsInt(Attributes attributes, String name) throws SAXException {
    String s = attributes.getValue(name);
    if (s == null) {
        throw new SAXException("Attribute '" + name + "' is missing");
    } else {
        return Integer.parseInt(s);
    }
}