Java Doc for DescriptorHandler.java in  » J2EE » JOnAS-4.8.6 » org » objectweb » jonas » ant » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » JOnAS 4.8.6 » org.objectweb.jonas.ant 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.xml.sax.helpers.DefaultHandler
      org.objectweb.jonas.ant.DescriptorHandler

DescriptorHandler
public class DescriptorHandler extends org.xml.sax.helpers.DefaultHandler (Code)
Inner class used by EjbJar to facilitate the parsing of deployment descriptors and the capture of appropriate information. Extends HandlerBase so it only implements the methods needed. During parsing creates a hashtable consisting of entries mapping the name it should be inserted into an EJB jar as to a File representing the file on disk. This list can then be accessed through the getFiles() method.


Field Summary
protected  StringcurrentElement
     Instance variable used to store the name of the current element being processed by the SAX parser.
protected  StringcurrentText
    
protected  HashtableejbFiles
     Instance variable that stores the names of the files as they will be put into the jar file, mapped to File objects Accessed by the SAX parser call-back method characters().
protected  StringejbName
    

Constructor Summary
public  DescriptorHandler(Task task, File srcDir)
    

Method Summary
public  voidcharacters(char[] ch, int start, int length)
     SAX parser call-back method invoked whenever characters are located within an element.
public  voidendElement(String uri, String localname, String qname)
     SAX parser call-back method that is invoked when an element is exited. Used to blank out (set to the empty string, not nullify) the name of the currentAttribute.
public  StringgetEjbName()
     Getter method that returns the value of the <ejb-name> element.
public  HashtablegetFiles()
     Getter method that returns the set of files to include in the EJB jar.
public  StringgetPublicId()
    
protected  voidprocessElement()
    
public  voidregisterDTD(String publicId, String location)
    
public  InputSourceresolveEntity(String publicId, String systemId)
    
public  voidstartDocument()
     SAX parser call-back method that is used to initialize the values of some instance variables to ensure safe operation.
public  voidstartElement(String uri, String localname, String qname, Attributes attrs)
     SAX parser call-back method that is invoked when a new element is entered into.

Field Detail
currentElement
protected String currentElement(Code)
Instance variable used to store the name of the current element being processed by the SAX parser. Accessed by the SAX parser call-back methods startElement() and endElement().



currentText
protected String currentText(Code)
The text of the current element



ejbFiles
protected Hashtable ejbFiles(Code)
Instance variable that stores the names of the files as they will be put into the jar file, mapped to File objects Accessed by the SAX parser call-back method characters().



ejbName
protected String ejbName(Code)
Instance variable that stores the value found in the <ejb-name> element




Constructor Detail
DescriptorHandler
public DescriptorHandler(Task task, File srcDir)(Code)




Method Detail
characters
public void characters(char[] ch, int start, int length) throws SAXException(Code)
SAX parser call-back method invoked whenever characters are located within an element. currentAttribute (modified by startElement and endElement) tells us whether we are in an interesting element (one of the up to four classes of an EJB). If so then converts the classname from the format org.apache.tools.ant.Parser to the convention for storing such a class, org/apache/tools/ant/Parser.class. This is then resolved into a file object under the srcdir which is stored in a Hashtable.
Parameters:
  ch - A character array containing all the characters inthe element, and maybe others that should be ignored.
Parameters:
  start - An integer marking the position in the chararray to start reading from.
Parameters:
  length - An integer representing an offset into thechar array where the current data terminates.



endElement
public void endElement(String uri, String localname, String qname) throws SAXException(Code)
SAX parser call-back method that is invoked when an element is exited. Used to blank out (set to the empty string, not nullify) the name of the currentAttribute. A better method would be to use a stack as an instance variable, however since we are only interested in leaf-node data this is a simpler and workable solution.
Parameters:
  name - The name of the attribute being exited. Ignoredin this implementation.



getEjbName
public String getEjbName()(Code)
Getter method that returns the value of the <ejb-name> element.



getFiles
public Hashtable getFiles()(Code)
Getter method that returns the set of files to include in the EJB jar.



getPublicId
public String getPublicId()(Code)
Get the publicId of the DTD



processElement
protected void processElement()(Code)



registerDTD
public void registerDTD(String publicId, String location)(Code)



resolveEntity
public InputSource resolveEntity(String publicId, String systemId) throws SAXException(Code)



startDocument
public void startDocument() throws SAXException(Code)
SAX parser call-back method that is used to initialize the values of some instance variables to ensure safe operation.



startElement
public void startElement(String uri, String localname, String qname, Attributes attrs) throws SAXException(Code)
SAX parser call-back method that is invoked when a new element is entered into. Used to store the context (attribute name) in the currentAttribute instance variable.
Parameters:
  uri - The namespace of the element being entered.
Parameters:
  localname - The name of the element being entered.
Parameters:
  qname - The qname of the element being entered.
Parameters:
  attrs - Attributes associated to the element.



Methods inherited from org.xml.sax.helpers.DefaultHandler
public void characters(char ch, int start, int length) throws SAXException(Code)(Java Doc)
public void endDocument() throws SAXException(Code)(Java Doc)
public void endElement(String uri, String localName, String qName) throws SAXException(Code)(Java Doc)
public void endPrefixMapping(String prefix) throws SAXException(Code)(Java Doc)
public void error(SAXParseException e) throws SAXException(Code)(Java Doc)
public void fatalError(SAXParseException e) throws SAXException(Code)(Java Doc)
public void ignorableWhitespace(char ch, int start, int length) throws SAXException(Code)(Java Doc)
public void notationDecl(String name, String publicId, String systemId) throws SAXException(Code)(Java Doc)
public void processingInstruction(String target, String data) throws SAXException(Code)(Java Doc)
public InputSource resolveEntity(String publicId, String systemId) throws IOException, SAXException(Code)(Java Doc)
public void setDocumentLocator(Locator locator)(Code)(Java Doc)
public void skippedEntity(String name) throws SAXException(Code)(Java Doc)
public void startDocument() throws SAXException(Code)(Java Doc)
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException(Code)(Java Doc)
public void startPrefixMapping(String prefix, String uri) throws SAXException(Code)(Java Doc)
public void unparsedEntityDecl(String name, String publicId, String systemId, String notationName) throws SAXException(Code)(Java Doc)
public void warning(SAXParseException e) throws SAXException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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