saxparser.java

linux下建立JAVA虚拟机的源码KAFFE

        Reader r = input.getCharacterStream();
        if (r != null)
          parser = new XMLParser(r, systemId,
                                 validating,
                                 namespaceAware,
                                 coalescing,
                                 replaceERefs,
                                 externalEntities,
                                 supportDTD,
                                 baseAware,
                                 stringInterning,
                                 true,
                                 this,
                                 this);
      }
    if (parser == null)
      {
        if (systemId == null)
          throw new SAXException("No stream or system ID specified");
        systemId = XMLParser.absolutize(null, systemId);
        in = new URL(systemId).openStream();
        opened = true;
        parser = new XMLParser(in, systemId,
                               validating,
                               namespaceAware,
                               coalescing,
                               replaceERefs,
                               externalEntities,
                               supportDTD,
                               baseAware,
                               stringInterning,
                               true,
                               this,
                               this);
      }
    reader = parser;
    baseURI = systemId;
    
    if (xIncludeAware)
      reader = new XIncludeFilter(parser, systemId, namespaceAware,
                                  validating, true);
    
    if (contentHandler != null)
      contentHandler.setDocumentLocator(this);
    boolean startDocumentDone = false;
    try
      {
        while (parser.hasNext())
          {
            int event = parser.next();
            if (baseAware)
              baseURI = parser.getXMLBase();
            switch (event)
              {
              case XMLStreamConstants.CHARACTERS:
                if (contentHandler != null)
                  {
                    char[] b = reader.getTextCharacters();
                    contentHandler.characters(b, 0, b.length);
                  }
                break;
              case XMLStreamConstants.SPACE:
                if (contentHandler != null)
                  {
                    char[] b = reader.getTextCharacters();
                    if (isIgnorableWhitespace(parser, b, false))
                      contentHandler.ignorableWhitespace(b, 0, b.length);
                    else
                      contentHandler.characters(b, 0, b.length);
                  }
                break;
              case XMLStreamConstants.CDATA:
                if (lexicalHandler != null)
                  lexicalHandler.startCDATA();
                if (contentHandler != null)
                  {
                    char[] b = reader.getTextCharacters();
                    if (isIgnorableWhitespace(parser, b, true))
                      contentHandler.ignorableWhitespace(b, 0, b.length);
                    else
                      contentHandler.characters(b, 0, b.length);
                  }
                if (lexicalHandler != null)
                  lexicalHandler.endCDATA();
                break;
              case XMLStreamConstants.START_ELEMENT:
                if (contentHandler != null)
                  {
                    QName name = reader.getName();
                    String uri = name.getNamespaceURI();
                    String localName = name.getLocalPart();
                    String prefix = name.getPrefix();
                    String qName = localName;
                    if (!"".equals(prefix))
                      qName = prefix + ":" + localName;
                    if (!namespaceAware)
                      {
                        uri = "";
                        localName = "";
                      }
                    else
                      {
                        int nc = reader.getNamespaceCount();
                        for (int i = 0; i < nc; i++)
                          {
                            String nsuri = reader.getNamespaceURI(i);
                            String nsprefix = reader.getNamespacePrefix(i);
                            if ("xml".equals(nsprefix))
                              continue;
                            contentHandler.startPrefixMapping(nsprefix, nsuri);
                          }
                      }
                    contentHandler.startElement(uri, localName, qName, this);
                  }
                break;
              case XMLStreamConstants.END_ELEMENT:
                if (contentHandler != null)
                  {
                    QName name = reader.getName();
                    String uri = name.getNamespaceURI();
                    String localName = name.getLocalPart();
                    String prefix = name.getPrefix();
                    String qName = localName;
                    if (!"".equals(prefix))
                      qName = prefix + ":" + localName;
                    if (!namespaceAware)
                      {
                        uri = "";
                        localName = "";
                      }
                    contentHandler.endElement(uri, localName, qName);
                    if (namespaceAware)
                      {
                        int nc = reader.getNamespaceCount();
                        for (int i = 0; i < nc; i++)
                          {
                            String nsprefix = reader.getNamespacePrefix(i);
                            if ("xml".equals(nsprefix))
                              continue;
                            contentHandler.endPrefixMapping(nsprefix);
                          }
                      }
                  }
                break;
              case XMLStreamConstants.COMMENT:
                if (lexicalHandler != null)
                  {
                    char[] b = reader.getTextCharacters();
                    lexicalHandler.comment(b, 0, b.length);
                  }
                break;
              case XMLStreamConstants.PROCESSING_INSTRUCTION:
                if (contentHandler != null)
                  {
                    String target = reader.getPITarget();
                    String data = reader.getPIData();
                    if (data == null)
                      data = "";
                    contentHandler.processingInstruction(target, data);
                  }
                break;
              case XMLParser.START_ENTITY:
                if (lexicalHandler != null)
                  {
                    String name = reader.getText();
                    lexicalHandler.startEntity(name);
                  }
                break;
              case XMLParser.END_ENTITY:
                if (lexicalHandler != null)
                  {
                    String name = reader.getText();
                    lexicalHandler.endEntity(name);
                  }
                break;
              case XMLStreamConstants.START_DOCUMENT:
                encoding = reader.getEncoding();
                xmlVersion = reader.getVersion();
                xmlStandalone = reader.isStandalone();
                xmlEncoding = reader.getCharacterEncodingScheme();
                if (contentHandler != null)
                  contentHandler.startDocument();
                startDocumentDone = true;
                break;
              case XMLStreamConstants.END_DOCUMENT:
                if (contentHandler != null)
                  contentHandler.endDocument();
                break;
              case XMLStreamConstants.DTD:
                XMLParser.Doctype doctype = parser.doctype;
                if (lexicalHandler != null)
                  {
                    String rootName = doctype.rootName;
                    String publicId = doctype.publicId;
                    String systemId2 = doctype.systemId;
                    lexicalHandler.startDTD(rootName, publicId, systemId2);
                  }
                for (Iterator i = doctype.entryIterator(); i.hasNext(); )
                  {
                    String entry = (String) i.next();
                    char c = entry.charAt(0);
                    String name = entry.substring(1);
                    if ('E' == c)
                      {
                        // Element decl
                        if (declHandler != null)
                          {
                            XMLParser.ContentModel model =
                              doctype.getElementModel(name);
                            declHandler.elementDecl(name, model.text);
                          }
                      }
                    else if ('A' == c)
                      {
                        // Attlist decl
                        if (declHandler != null)
                          {
                            for (Iterator j = doctype.attlistIterator(name);
                                 j.hasNext(); )
                              {
                                Map.Entry att = (Map.Entry) j.next();
                                String aname = (String) att.getKey();
                                XMLParser.AttributeDecl decl =
                                  (XMLParser.AttributeDecl) att.getValue();
                                String type = decl.type;
                                String value = decl.value;
                                String mode = null;
                                switch (decl.valueType)
                                  {
                                  case XMLParser.ATTRIBUTE_DEFAULT_FIXED:
                                    mode = "#FIXED";
                                    break;
                                  case XMLParser.ATTRIBUTE_DEFAULT_REQUIRED:
                                    mode = "#REQUIRED";
                                    break;
                                  case XMLParser.ATTRIBUTE_DEFAULT_IMPLIED:
                                    mode = "#IMPLIED";
                                    break;
                                  }
                                declHandler.attributeDecl(name, aname,
                                                          type, mode, value);
                              }
                          }
                      }
                    else if ('e' == c)
                      {
                        // Entity decl
                        Object entity = doctype.getEntity(name);
                        if (entity instanceof String)
                          {
                            if (declHandler != null)
                              declHandler.internalEntityDecl(name,
                                                             (String) entity);
                          }
                        else
                          {
                            XMLParser.ExternalIds ids =
                              (XMLParser.ExternalIds) entity;
                            if (ids.notationName != null)
                              {
                                if (dtdHandler != null)
                                  {
                                    String pub = ids.publicId;
                                    String url = ids.systemId;
                                    String not = ids.notationName;
                                    dtdHandler.unparsedEntityDecl(name,
                                                                  pub,
                                                                  url,
                                                                  not);
                                  }
                              }
                            else
                              {
                                if (declHandler != null)
                                  {
                                    String pub = ids.publicId;
                                    String url = ids.systemId;
                                    declHandler.externalEntityDecl(name,
                                                                   pub,
                                                                   url);
                                  }
                              }
                          }
                      }
                    else if ('n' == c)
                      {
                        // Notation decl
                        if (dtdHandler != null)
                          {
                            XMLParser.ExternalIds ids =
                              doctype.getNotation(name);
                            String pub = ids.publicId;
                            String url = ids.systemId;
                            dtdHandler.notationDecl(name, pub, url);
                          }
                      }
                    else if ('c' == c)
                      {
                        // Comment
                        if (lexicalHandler != null)
                          {
                            String comment = doctype.getComment(name);
                            char[] b = comment.toCharArray();
                            lexicalHandler.comment(b, 0, b.length);
                          }
                      }
                    else if ('p' == c)
                      {
                        // Processing instruction
                        if (contentHandler != null)
                          {
                            String[] pi = doctype.getPI(name);
                            String target = pi[0];
                            String data = pi[1];
                            if (data == null)
                              data = "";
                            contentHandler.processingInstruction(target, data);
                          }
                      }
                  }
                if (lexicalHandler != null)
                  lexicalHandler.endDTD();
              }
          }
        reset();
        if (opened)
          in.close();
      }
    catch (Exception e)