--- /dev/null
+// ParserAdapter.java - adapt a SAX1 Parser to a SAX2 XMLReader.
+// http://www.saxproject.org
+// Written by David Megginson
+// NO WARRANTY! This class is in the public domain.
+// $Id: ParserAdapter.java,v 1.16 2004/04/26 17:34:35 dmegginson Exp $
+
+package org.xml.sax.helpers;
+
+import java.io.IOException;
+import java.util.Enumeration;
+import java.util.Vector;
+
+import org.xml.sax.Parser; // deprecated
+import org.xml.sax.InputSource;
+import org.xml.sax.Locator;
+import org.xml.sax.AttributeList; // deprecated
+import org.xml.sax.EntityResolver;
+import org.xml.sax.DTDHandler;
+import org.xml.sax.DocumentHandler; // deprecated
+import org.xml.sax.ErrorHandler;
+import org.xml.sax.SAXException;
+import org.xml.sax.SAXParseException;
+
+import org.xml.sax.XMLReader;
+import org.xml.sax.Attributes;
+import org.xml.sax.ContentHandler;
+import org.xml.sax.SAXNotRecognizedException;
+import org.xml.sax.SAXNotSupportedException;
+
+
+/**
+ * Adapt a SAX1 Parser as a SAX2 XMLReader.
+ *
+ * <blockquote>
+ * <em>This module, both source code and documentation, is in the
+ * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
+ * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a>
+ * for further information.
+ * </blockquote>
+ *
+ * <p>This class wraps a SAX1 {@link org.xml.sax.Parser Parser}
+ * and makes it act as a SAX2 {@link org.xml.sax.XMLReader XMLReader},
+ * with feature, property, and Namespace support. Note
+ * that it is not possible to report {@link org.xml.sax.ContentHandler#skippedEntity
+ * skippedEntity} events, since SAX1 does not make that information available.</p>
+ *
+ * <p>This adapter does not test for duplicate Namespace-qualified
+ * attribute names.</p>
+ *
+ * @since SAX 2.0
+ * @author David Megginson
+ * @version 2.0.1 (sax2r2)
+ * @see org.xml.sax.helpers.XMLReaderAdapter
+ * @see org.xml.sax.XMLReader
+ * @see org.xml.sax.Parser
+ */
+public class ParserAdapter implements XMLReader, DocumentHandler
+{
+
+\f
+ ////////////////////////////////////////////////////////////////////
+ // Constructors.
+ ////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Construct a new parser adapter.
+ *
+ * <p>Use the "org.xml.sax.parser" property to locate the
+ * embedded SAX1 driver.</p>
+ *
+ * @exception SAXException If the embedded driver
+ * cannot be instantiated or if the
+ * org.xml.sax.parser property is not specified.
+ */
+ public ParserAdapter ()
+ throws SAXException
+ {
+ super();
+
+ String driver = System.getProperty("org.xml.sax.parser");
+
+ try {
+ setup(ParserFactory.makeParser());
+ } catch (ClassNotFoundException e1) {
+ throw new
+ SAXException("Cannot find SAX1 driver class " +
+ driver, e1);
+ } catch (IllegalAccessException e2) {
+ throw new
+ SAXException("SAX1 driver class " +
+ driver +
+ " found but cannot be loaded", e2);
+ } catch (InstantiationException e3) {
+ throw new
+ SAXException("SAX1 driver class " +
+ driver +
+ " loaded but cannot be instantiated", e3);
+ } catch (ClassCastException e4) {
+ throw new
+ SAXException("SAX1 driver class " +
+ driver +
+ " does not implement org.xml.sax.Parser");
+ } catch (NullPointerException e5) {
+ throw new
+ SAXException("System property org.xml.sax.parser not specified");
+ }
+ }
+
+
+ /**
+ * Construct a new parser adapter.
+ *
+ * <p>Note that the embedded parser cannot be changed once the
+ * adapter is created; to embed a different parser, allocate
+ * a new ParserAdapter.</p>
+ *
+ * @param parser The SAX1 parser to embed.
+ * @exception java.lang.NullPointerException If the parser parameter
+ * is null.
+ */
+ public ParserAdapter (Parser parser)
+ {
+ super();
+ setup(parser);
+ }
+
+
+ /**
+ * Internal setup method.
+ *
+ * @param parser The embedded parser.
+ * @exception java.lang.NullPointerException If the parser parameter
+ * is null.
+ */
+ private void setup (Parser parser)
+ {
+ if (parser == null) {
+ throw new
+ NullPointerException("Parser argument must not be null");
+ }
+ this.parser = parser;
+ atts = new AttributesImpl();
+ nsSupport = new NamespaceSupport();
+ attAdapter = new AttributeListAdapter();
+ }
+
+
+\f
+ ////////////////////////////////////////////////////////////////////
+ // Implementation of org.xml.sax.XMLReader.
+ ////////////////////////////////////////////////////////////////////
+
+
+ //
+ // Internal constants for the sake of convenience.
+ //
+ private final static String FEATURES = "http://xml.org/sax/features/";
+ private final static String NAMESPACES = FEATURES + "namespaces";
+ private final static String NAMESPACE_PREFIXES = FEATURES + "namespace-prefixes";
+ private final static String XMLNS_URIs = FEATURES + "xmlns-uris";
+
+
+ /**
+ * Set a feature flag for the parser.
+ *
+ * <p>The only features recognized are namespaces and
+ * namespace-prefixes.</p>
+ *
+ * @param name The feature name, as a complete URI.
+ * @param value The requested feature value.
+ * @exception SAXNotRecognizedException If the feature
+ * can't be assigned or retrieved.
+ * @exception SAXNotSupportedException If the feature
+ * can't be assigned that value.
+ * @see org.xml.sax.XMLReader#setFeature
+ */
+ @Override
+ public void setFeature (String name, boolean value)
+ throws SAXNotRecognizedException, SAXNotSupportedException
+ {
+ if (name.equals(NAMESPACES)) {
+ checkNotParsing("feature", name);
+ namespaces = value;
+ if (!namespaces && !prefixes) {
+ prefixes = true;
+ }
+ } else if (name.equals(NAMESPACE_PREFIXES)) {
+ checkNotParsing("feature", name);
+ prefixes = value;
+ if (!prefixes && !namespaces) {
+ namespaces = true;
+ }
+ } else if (name.equals(XMLNS_URIs)) {
+ checkNotParsing("feature", name);
+ uris = value;
+ } else {
+ throw new SAXNotRecognizedException("Feature: " + name);
+ }
+ }
+
+
+ /**
+ * Check a parser feature flag.
+ *
+ * <p>The only features recognized are namespaces and
+ * namespace-prefixes.</p>
+ *
+ * @param name The feature name, as a complete URI.
+ * @return The current feature value.
+ * @exception SAXNotRecognizedException If the feature
+ * value can't be assigned or retrieved.
+ * @exception SAXNotSupportedException If the
+ * feature is not currently readable.
+ * @see org.xml.sax.XMLReader#setFeature
+ */
+ @Override
+ public boolean getFeature (String name)
+ throws SAXNotRecognizedException, SAXNotSupportedException
+ {
+ if (name.equals(NAMESPACES)) {
+ return namespaces;
+ } else if (name.equals(NAMESPACE_PREFIXES)) {
+ return prefixes;
+ } else if (name.equals(XMLNS_URIs)) {
+ return uris;
+ } else {
+ throw new SAXNotRecognizedException("Feature: " + name);
+ }
+ }
+
+
+ /**
+ * Set a parser property.
+ *
+ * <p>No properties are currently recognized.</p>
+ *
+ * @param name The property name.
+ * @param value The property value.
+ * @exception SAXNotRecognizedException If the property
+ * value can't be assigned or retrieved.
+ * @exception SAXNotSupportedException If the property
+ * can't be assigned that value.
+ * @see org.xml.sax.XMLReader#setProperty
+ */
+ @Override
+ public void setProperty (String name, Object value)
+ throws SAXNotRecognizedException, SAXNotSupportedException
+ {
+ throw new SAXNotRecognizedException("Property: " + name);
+ }
+
+
+ /**
+ * Get a parser property.
+ *
+ * <p>No properties are currently recognized.</p>
+ *
+ * @param name The property name.
+ * @return The property value.
+ * @exception SAXNotRecognizedException If the property
+ * value can't be assigned or retrieved.
+ * @exception SAXNotSupportedException If the property
+ * value is not currently readable.
+ * @see org.xml.sax.XMLReader#getProperty
+ */
+ @Override
+ public Object getProperty (String name)
+ throws SAXNotRecognizedException, SAXNotSupportedException
+ {
+ throw new SAXNotRecognizedException("Property: " + name);
+ }
+
+
+ /**
+ * Set the entity resolver.
+ *
+ * @param resolver The new entity resolver.
+ * @see org.xml.sax.XMLReader#setEntityResolver
+ */
+ @Override
+ public void setEntityResolver (EntityResolver resolver)
+ {
+ entityResolver = resolver;
+ }
+
+
+ /**
+ * Return the current entity resolver.
+ *
+ * @return The current entity resolver, or null if none was supplied.
+ * @see org.xml.sax.XMLReader#getEntityResolver
+ */
+ @Override
+ public EntityResolver getEntityResolver ()
+ {
+ return entityResolver;
+ }
+
+
+ /**
+ * Set the DTD handler.
+ *
+ * @param handler the new DTD handler
+ * @see org.xml.sax.XMLReader#setEntityResolver
+ */
+ @Override
+ public void setDTDHandler (DTDHandler handler)
+ {
+ dtdHandler = handler;
+ }
+
+
+ /**
+ * Return the current DTD handler.
+ *
+ * @return the current DTD handler, or null if none was supplied
+ * @see org.xml.sax.XMLReader#getEntityResolver
+ */
+ @Override
+ public DTDHandler getDTDHandler ()
+ {
+ return dtdHandler;
+ }
+
+
+ /**
+ * Set the content handler.
+ *
+ * @param handler the new content handler
+ * @see org.xml.sax.XMLReader#setEntityResolver
+ */
+ @Override
+ public void setContentHandler (ContentHandler handler)
+ {
+ contentHandler = handler;
+ }
+
+
+ /**
+ * Return the current content handler.
+ *
+ * @return The current content handler, or null if none was supplied.
+ * @see org.xml.sax.XMLReader#getEntityResolver
+ */
+ @Override
+ public ContentHandler getContentHandler ()
+ {
+ return contentHandler;
+ }
+
+
+ /**
+ * Set the error handler.
+ *
+ * @param handler The new error handler.
+ * @see org.xml.sax.XMLReader#setEntityResolver
+ */
+ @Override
+ public void setErrorHandler (ErrorHandler handler)
+ {
+ errorHandler = handler;
+ }
+
+
+ /**
+ * Return the current error handler.
+ *
+ * @return The current error handler, or null if none was supplied.
+ * @see org.xml.sax.XMLReader#getEntityResolver
+ */
+ @Override
+ public ErrorHandler getErrorHandler ()
+ {
+ return errorHandler;
+ }
+
+
+ /**
+ * Parse an XML document.
+ *
+ * @param systemId The absolute URL of the document.
+ * @exception java.io.IOException If there is a problem reading
+ * the raw content of the document.
+ * @exception SAXException If there is a problem
+ * processing the document.
+ * @see #parse(org.xml.sax.InputSource)
+ * @see org.xml.sax.Parser#parse(java.lang.String)
+ */
+ @Override
+ public void parse (String systemId)
+ throws IOException, SAXException
+ {
+ parse(new InputSource(systemId));
+ }
+
+
+ /**
+ * Parse an XML document.
+ *
+ * @param input An input source for the document.
+ * @exception java.io.IOException If there is a problem reading
+ * the raw content of the document.
+ * @exception SAXException If there is a problem
+ * processing the document.
+ * @see #parse(java.lang.String)
+ * @see org.xml.sax.Parser#parse(org.xml.sax.InputSource)
+ */
+ @Override
+ public void parse (InputSource input)
+ throws IOException, SAXException
+ {
+ if (parsing) {
+ throw new SAXException("Parser is already in use");
+ }
+ setupParser();
+ parsing = true;
+ try {
+ parser.parse(input);
+ } finally {
+ parsing = false;
+ }
+ parsing = false;
+ }
+
+
+
+ ////////////////////////////////////////////////////////////////////
+ // Implementation of org.xml.sax.DocumentHandler.
+ ////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 document locator event.
+ *
+ * @param locator A document locator.
+ * @see org.xml.sax.ContentHandler#setDocumentLocator
+ */
+ @Override
+ public void setDocumentLocator (Locator locator)
+ {
+ this.locator = locator;
+ if (contentHandler != null) {
+ contentHandler.setDocumentLocator(locator);
+ }
+ }
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 start document event.
+ *
+ * @exception SAXException The client may raise a
+ * processing exception.
+ * @see org.xml.sax.DocumentHandler#startDocument
+ */
+ @Override
+ public void startDocument ()
+ throws SAXException
+ {
+ if (contentHandler != null) {
+ contentHandler.startDocument();
+ }
+ }
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 end document event.
+ *
+ * @exception SAXException The client may raise a
+ * processing exception.
+ * @see org.xml.sax.DocumentHandler#endDocument
+ */
+ @Override
+ public void endDocument ()
+ throws SAXException
+ {
+ if (contentHandler != null) {
+ contentHandler.endDocument();
+ }
+ }
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 startElement event.
+ *
+ * <p>If necessary, perform Namespace processing.</p>
+ *
+ * @param qName The qualified (prefixed) name.
+ * @param qAtts The XML attribute list (with qnames).
+ * @exception SAXException The client may raise a
+ * processing exception.
+ */
+ @Override
+ public void startElement (String qName, AttributeList qAtts)
+ throws SAXException
+ {
+ // These are exceptions from the
+ // first pass; they should be
+ // ignored if there's a second pass,
+ // but reported otherwise.
+ Vector exceptions = null;
+
+ // If we're not doing Namespace
+ // processing, dispatch this quickly.
+ if (!namespaces) {
+ if (contentHandler != null) {
+ attAdapter.setAttributeList(qAtts);
+ contentHandler.startElement("", "", qName.intern(),
+ attAdapter);
+ }
+ return;
+ }
+
+
+ // OK, we're doing Namespace processing.
+ nsSupport.pushContext();
+ int length = qAtts.getLength();
+
+ // First pass: handle NS decls
+ for (int i = 0; i < length; i++) {
+ String attQName = qAtts.getName(i);
+
+ if (!attQName.startsWith("xmlns"))
+ continue;
+ // Could be a declaration...
+ String prefix;
+ int n = attQName.indexOf(':');
+
+ // xmlns=...
+ if (n == -1 && attQName.length () == 5) {
+ prefix = "";
+ } else if (n != 5) {
+ // XML namespaces spec doesn't discuss "xmlnsf:oo"
+ // (and similarly named) attributes ... at most, warn
+ continue;
+ } else // xmlns:foo=...
+ prefix = attQName.substring(n+1);
+
+ String value = qAtts.getValue(i);
+ if (!nsSupport.declarePrefix(prefix, value)) {
+ reportError("Illegal Namespace prefix: " + prefix);
+ continue;
+ }
+ if (contentHandler != null)
+ contentHandler.startPrefixMapping(prefix, value);
+ }
+
+ // Second pass: copy all relevant
+ // attributes into the SAX2 AttributeList
+ // using updated prefix bindings
+ atts.clear();
+ for (int i = 0; i < length; i++) {
+ String attQName = qAtts.getName(i);
+ String type = qAtts.getType(i);
+ String value = qAtts.getValue(i);
+
+ // Declaration?
+ if (attQName.startsWith("xmlns")) {
+ String prefix;
+ int n = attQName.indexOf(':');
+
+ if (n == -1 && attQName.length () == 5) {
+ prefix = "";
+ } else if (n != 5) {
+ // XML namespaces spec doesn't discuss "xmlnsf:oo"
+ // (and similarly named) attributes ... ignore
+ prefix = null;
+ } else {
+ prefix = attQName.substring(6);
+ }
+ // Yes, decl: report or prune
+ if (prefix != null) {
+ if (prefixes) {
+ if (uris)
+ // note funky case: localname can be null
+ // when declaring the default prefix, and
+ // yet the uri isn't null.
+ atts.addAttribute (nsSupport.XMLNS, prefix,
+ attQName.intern(), type, value);
+ else
+ atts.addAttribute ("", "",
+ attQName.intern(), type, value);
+ }
+ continue;
+ }
+ }
+
+ // Not a declaration -- report
+ try {
+ String attName[] = processName(attQName, true, true);
+ atts.addAttribute(attName[0], attName[1], attName[2],
+ type, value);
+ } catch (SAXException e) {
+ if (exceptions == null)
+ exceptions = new Vector();
+ exceptions.addElement(e);
+ atts.addAttribute("", attQName, attQName, type, value);
+ }
+ }
+
+ // now handle the deferred exception reports
+ if (exceptions != null && errorHandler != null) {
+ for (int i = 0; i < exceptions.size(); i++)
+ errorHandler.error((SAXParseException)
+ (exceptions.elementAt(i)));
+ }
+
+ // OK, finally report the event.
+ if (contentHandler != null) {
+ String name[] = processName(qName, false, false);
+ contentHandler.startElement(name[0], name[1], name[2], atts);
+ }
+ }
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 end element event.
+ *
+ * @param qName The qualified (prefixed) name.
+ * @exception SAXException The client may raise a
+ * processing exception.
+ * @see org.xml.sax.DocumentHandler#endElement
+ */
+ @Override
+ public void endElement (String qName)
+ throws SAXException
+ {
+ // If we're not doing Namespace
+ // processing, dispatch this quickly.
+ if (!namespaces) {
+ if (contentHandler != null) {
+ contentHandler.endElement("", "", qName.intern());
+ }
+ return;
+ }
+
+ // Split the name.
+ String names[] = processName(qName, false, false);
+ if (contentHandler != null) {
+ contentHandler.endElement(names[0], names[1], names[2]);
+ Enumeration prefixes = nsSupport.getDeclaredPrefixes();
+ while (prefixes.hasMoreElements()) {
+ String prefix = (String)prefixes.nextElement();
+ contentHandler.endPrefixMapping(prefix);
+ }
+ }
+ nsSupport.popContext();
+ }
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 characters event.
+ *
+ * @param ch An array of characters.
+ * @param start The starting position in the array.
+ * @param length The number of characters to use.
+ * @exception SAXException The client may raise a
+ * processing exception.
+ * @see org.xml.sax.DocumentHandler#characters
+ */
+ @Override
+ public void characters (char ch[], int start, int length)
+ throws SAXException
+ {
+ if (contentHandler != null) {
+ contentHandler.characters(ch, start, length);
+ }
+ }
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 ignorable whitespace event.
+ *
+ * @param ch An array of characters.
+ * @param start The starting position in the array.
+ * @param length The number of characters to use.
+ * @exception SAXException The client may raise a
+ * processing exception.
+ * @see org.xml.sax.DocumentHandler#ignorableWhitespace
+ */
+ @Override
+ public void ignorableWhitespace (char ch[], int start, int length)
+ throws SAXException
+ {
+ if (contentHandler != null) {
+ contentHandler.ignorableWhitespace(ch, start, length);
+ }
+ }
+
+
+ /**
+ * Adapter implementation method; do not call.
+ * Adapt a SAX1 processing instruction event.
+ *
+ * @param target The processing instruction target.
+ * @param data The remainder of the processing instruction
+ * @exception SAXException The client may raise a
+ * processing exception.
+ * @see org.xml.sax.DocumentHandler#processingInstruction
+ */
+ @Override
+ public void processingInstruction (String target, String data)
+ throws SAXException
+ {
+ if (contentHandler != null) {
+ contentHandler.processingInstruction(target, data);
+ }
+ }
+
+
+\f
+ ////////////////////////////////////////////////////////////////////
+ // Internal utility methods.
+ ////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Initialize the parser before each run.
+ */
+ private void setupParser ()
+ {
+ // catch an illegal "nonsense" state.
+ if (!prefixes && !namespaces)
+ throw new IllegalStateException ();
+
+ nsSupport.reset();
+ if (uris)
+ nsSupport.setNamespaceDeclUris (true);
+
+ if (entityResolver != null) {
+ parser.setEntityResolver(entityResolver);
+ }
+ if (dtdHandler != null) {
+ parser.setDTDHandler(dtdHandler);
+ }
+ if (errorHandler != null) {
+ parser.setErrorHandler(errorHandler);
+ }
+ parser.setDocumentHandler(this);
+ locator = null;
+ }
+
+
+ /**
+ * Process a qualified (prefixed) name.
+ *
+ * <p>If the name has an undeclared prefix, use only the qname
+ * and make an ErrorHandler.error callback in case the app is
+ * interested.</p>
+ *
+ * @param qName The qualified (prefixed) name.
+ * @param isAttribute true if this is an attribute name.
+ * @return The name split into three parts.
+ * @exception SAXException The client may throw
+ * an exception if there is an error callback.
+ */
+ private String [] processName (String qName, boolean isAttribute,
+ boolean useException)
+ throws SAXException
+ {
+ String parts[] = nsSupport.processName(qName, nameParts,
+ isAttribute);
+ if (parts == null) {
+ if (useException)
+ throw makeException("Undeclared prefix: " + qName);
+ reportError("Undeclared prefix: " + qName);
+ parts = new String[3];
+ parts[0] = parts[1] = "";
+ parts[2] = qName.intern();
+ }
+ return parts;
+ }
+
+
+ /**
+ * Report a non-fatal error.
+ *
+ * @param message The error message.
+ * @exception SAXException The client may throw
+ * an exception.
+ */
+ void reportError (String message)
+ throws SAXException
+ {
+ if (errorHandler != null)
+ errorHandler.error(makeException(message));
+ }
+
+
+ /**
+ * Construct an exception for the current context.
+ *
+ * @param message The error message.
+ */
+ private SAXParseException makeException (String message)
+ {
+ if (locator != null) {
+ return new SAXParseException(message, locator);
+ } else {
+ return new SAXParseException(message, null, null, -1, -1);
+ }
+ }
+
+
+ /**
+ * Throw an exception if we are parsing.
+ *
+ * <p>Use this method to detect illegal feature or
+ * property changes.</p>
+ *
+ * @param type The type of thing (feature or property).
+ * @param name The feature or property name.
+ * @exception SAXNotSupportedException If a
+ * document is currently being parsed.
+ */
+ private void checkNotParsing (String type, String name)
+ throws SAXNotSupportedException
+ {
+ if (parsing) {
+ throw new SAXNotSupportedException("Cannot change " +
+ type + ' ' +
+ name + " while parsing");
+
+ }
+ }
+
+
+\f
+ ////////////////////////////////////////////////////////////////////
+ // Internal state.
+ ////////////////////////////////////////////////////////////////////
+
+ private NamespaceSupport nsSupport;
+ private AttributeListAdapter attAdapter;
+
+ private boolean parsing = false;
+ private String nameParts[] = new String[3];
+
+ private Parser parser = null;
+
+ private AttributesImpl atts = null;
+
+ // Features
+ private boolean namespaces = true;
+ private boolean prefixes = false;
+ private boolean uris = false;
+
+ // Properties
+
+ // Handlers
+ Locator locator;
+
+ EntityResolver entityResolver = null;
+ DTDHandler dtdHandler = null;
+ ContentHandler contentHandler = null;
+ ErrorHandler errorHandler = null;
+
+
+\f
+ ////////////////////////////////////////////////////////////////////
+ // Inner class to wrap an AttributeList when not doing NS proc.
+ ////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Adapt a SAX1 AttributeList as a SAX2 Attributes object.
+ *
+ * <p>This class is in the Public Domain, and comes with NO
+ * WARRANTY of any kind.</p>
+ *
+ * <p>This wrapper class is used only when Namespace support
+ * is disabled -- it provides pretty much a direct mapping
+ * from SAX1 to SAX2, except that names and types are
+ * interned whenever requested.</p>
+ */
+ final class AttributeListAdapter implements Attributes
+ {
+
+ /**
+ * Construct a new adapter.
+ */
+ AttributeListAdapter ()
+ {
+ }
+
+
+ /**
+ * Set the embedded AttributeList.
+ *
+ * <p>This method must be invoked before any of the others
+ * can be used.</p>
+ *
+ * @param The SAX1 attribute list (with qnames).
+ */
+ void setAttributeList (AttributeList qAtts)
+ {
+ this.qAtts = qAtts;
+ }
+
+
+ /**
+ * Return the length of the attribute list.
+ *
+ * @return The number of attributes in the list.
+ * @see org.xml.sax.Attributes#getLength
+ */
+ @Override
+ public int getLength ()
+ {
+ return qAtts.getLength();
+ }
+
+
+ /**
+ * Return the Namespace URI of the specified attribute.
+ *
+ * @param The attribute's index.
+ * @return Always the empty string.
+ * @see org.xml.sax.Attributes#getURI
+ */
+ @Override
+ public String getURI (int i)
+ {
+ return "";
+ }
+
+
+ /**
+ * Return the local name of the specified attribute.
+ *
+ * @param The attribute's index.
+ * @return Always the empty string.
+ * @see org.xml.sax.Attributes#getLocalName
+ */
+ @Override
+ public String getLocalName (int i)
+ {
+ return "";
+ }
+
+
+ /**
+ * Return the qualified (prefixed) name of the specified attribute.
+ *
+ * @param The attribute's index.
+ * @return The attribute's qualified name, internalized.
+ */
+ @Override
+ public String getQName (int i)
+ {
+ return qAtts.getName(i).intern();
+ }
+
+
+ /**
+ * Return the type of the specified attribute.
+ *
+ * @param The attribute's index.
+ * @return The attribute's type as an internalized string.
+ */
+ @Override
+ public String getType (int i)
+ {
+ return qAtts.getType(i).intern();
+ }
+
+
+ /**
+ * Return the value of the specified attribute.
+ *
+ * @param The attribute's index.
+ * @return The attribute's value.
+ */
+ @Override
+ public String getValue (int i)
+ {
+ return qAtts.getValue(i);
+ }
+
+
+ /**
+ * Look up an attribute index by Namespace name.
+ *
+ * @param uri The Namespace URI or the empty string.
+ * @param localName The local name.
+ * @return The attributes index, or -1 if none was found.
+ * @see org.xml.sax.Attributes#getIndex(java.lang.String,java.lang.String)
+ */
+ @Override
+ public int getIndex (String uri, String localName)
+ {
+ return -1;
+ }
+
+
+ /**
+ * Look up an attribute index by qualified (prefixed) name.
+ *
+ * @param qName The qualified name.
+ * @return The attributes index, or -1 if none was found.
+ * @see org.xml.sax.Attributes#getIndex(java.lang.String)
+ */
+ @Override
+ public int getIndex (String qName)
+ {
+ int max = atts.getLength();
+ for (int i = 0; i < max; i++) {
+ if (qAtts.getName(i).equals(qName)) {
+ return i;
+ }
+ }
+ return -1;
+ }
+
+
+ /**
+ * Look up the type of an attribute by Namespace name.
+ *
+ * @param uri The Namespace URI
+ * @param localName The local name.
+ * @return The attribute's type as an internalized string.
+ */
+ @Override
+ public String getType (String uri, String localName)
+ {
+ return null;
+ }
+
+
+ /**
+ * Look up the type of an attribute by qualified (prefixed) name.
+ *
+ * @param qName The qualified name.
+ * @return The attribute's type as an internalized string.
+ */
+ @Override
+ public String getType (String qName)
+ {
+ return qAtts.getType(qName).intern();
+ }
+
+
+ /**
+ * Look up the value of an attribute by Namespace name.
+ *
+ * @param uri The Namespace URI
+ * @param localName The local name.
+ * @return The attribute's value.
+ */
+ @Override
+ public String getValue (String uri, String localName)
+ {
+ return null;
+ }
+
+
+ /**
+ * Look up the value of an attribute by qualified (prefixed) name.
+ *
+ * @param qName The qualified name.
+ * @return The attribute's value.
+ */
+ @Override
+ public String getValue (String qName)
+ {
+ return qAtts.getValue(qName);
+ }
+
+ private AttributeList qAtts;
+ }
+}
+
+// end of ParserAdapter.java
git://source.jalview.org / jalview.git / blobdiff