Package de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl

Class WorkflowHandler

java.lang.Object

de.uni_trier.wi2.procake.utils.composition.FactoryObjectImplementation

de.uni_trier.wi2.procake.data.io.IOImpl

de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.XMLReadHandlerImpl

de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.WorkflowHandler

All Implemented Interfaces:

WorkflowTags, ContentHandler, IO, ContentHandler

public class WorkflowHandler
extends XMLReadHandlerImpl
implements WorkflowTags

Extends the normal ObjectHandler with the ability to read Reasoning Workflows and AdaptationCases.

Author:

Sebastian Goerg

Field Summary

Fields

Modifier and Type	Field	Description
static String	HANDLERNAME	Constant HANDLERNAME="WorkflowHandler"

Fields inherited from interface de.uni_trier.wi2.procake.utils.io.IO

COMPONENT, COMPONENT_KEY, DEFAULT_ENCODING, LOG_CONTENTHANDLER_NOT_FOUND, LOG_FILE_NOT_FOUND, LOG_IO_EXCEPTION, LOG_READER_NOT_FOUND, LOG_SAX_EXCEPTION, LOG_UNKNOWN_PARAMETER, LOG_WRITER_NOT_FOUND, LOG_WRONG_PARAMATER_TYPE, RESOURCE_XML

Fields inherited from interface de.uni_trier.wi2.procake.data.io.xml.WorkflowTags

ATT_REASONING_NODE_AND, ATT_REASONING_NODE_LOOP, ATT_REASONING_NODE_XOR, ATT_REASONING_REFID, ATT_REASONING_STATUS, ATT_REASONING_TYPE, PREFIX_RWFL, SCHEMA_LOCATION_RWFL, TAG_REASONING_DATAFLOW_ELEMENT, TAG_REASONING_DATAOBJECT_CHILDS, TAG_REASONING_DATAOBJECT_REF, TAG_REASONING_DATAOBJECTS, TAG_REASONING_DATAOBJECTWRAPPER, TAG_REASONING_NODE, TAG_REASONING_SEQUENCE, TAG_REASONING_SUBWFL, TAG_REASONING_TASK, TAG_REASONING_TASK_INPUT, TAG_REASONING_TASK_OUTPUT, TAG_REASONING_WFL, TAG_SEMANTICDESCRIPTION, URI_RWFL

Constructor Summary

Constructors

Constructor	Description
WorkflowHandler()	Constructor for WorkflowHandler.

Method Summary

Modifier and Type	Method	Description
IO	copy()	overwritten copy-method from Object; use it to copy a complete operator
void	endElement(String uri, String localName, String qName)
String	getName()	Each io component must have a name that is used in IOFactory.newIO(String).
Object	getObject()	After parsing the document, this method must be called to get the Object.
boolean	isHandlerFor(Class value)	Checks if the io component is capable to perform the operation for objects of this class.
boolean	isHandlerFor(String uri, String localName, String qName, Attributes attributes)	Queries the handler for possible handling of the given (SAX-)parameters
void	startElement(String uri, String localName, String qName, Attributes attributes)
void	subHandlerFinishedWithObject(Object subHandlerObject)	Callback-method from the subHandler to inform the parentHandler about the finished object

Methods inherited from class de.uni_trier.wi2.procake.data.io.xml.xerces_saxImpl.XMLReadHandlerImpl

callSubHandlerEnd, callSubHandlerStart, characters, endDocument, endPrefixMapping, getCharacterString, getDocumentLocator, ignorableWhitespace, initiateSubHandler, notifyParentHandler, processingInstruction, resetSubHandler, setCharacterString, setDocumentLocator, setParentHandler, skippedEntity, startDocument, startPrefixMapping

Methods inherited from class de.uni_trier.wi2.procake.data.io.IOImpl

getDescription, getFamily, getParameters, postInit, preInit, setFamily

Methods inherited from class de.uni_trier.wi2.procake.utils.composition.FactoryObjectImplementation

getParameter, initParametersBasedOn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface de.uni_trier.wi2.procake.utils.io.IO

getDescription, getFamily, setFamily

Field Detail

HANDLERNAME

public static final String HANDLERNAME

Constant HANDLERNAME="WorkflowHandler"

See Also:

Constant Field Values

Constructor Detail

WorkflowHandler

public WorkflowHandler()

Constructor for WorkflowHandler.

Method Detail

isHandlerFor

public boolean isHandlerFor(String uri,
                            String localName,
                            String qName,
                            Attributes attributes)

Queries the handler for possible handling of the given (SAX-)parameters

Specified by:

isHandlerFor in interface ContentHandler

Returns:

startElement

public void startElement(String uri,
                         String localName,
                         String qName,
                         Attributes attributes)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Throws:

SAXException

endElement

public void endElement(String uri,
                       String localName,
                       String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Throws:

SAXException

getName

public String getName()

Each io component must have a name that is used in IOFactory.newIO(String). The name must be unique thus it is usefull to use a short description or to the class name ( this.getClass().getName()).

Specified by:

getName in interface IO

Returns:

Returns the name of the io component.

isHandlerFor

public boolean isHandlerFor(Class value)

Checks if the io component is capable to perform the operation for objects of this class.

A typical implementation looks like:

 public boolean isHandlerFor(Class value) {
        if (DataObject.class.isAssignableFrom(value))
                return true;
        return false;
 }
 

Specified by:

isHandlerFor in interface IO

Parameters:

value - The class that has to be checked.

Returns:

Results true if the class can oeprate with the given class.

copy

public IO copy()

overwritten copy-method from Object; use it to copy a complete operator

Specified by:

copy in interface IO

Returns:

getObject

public Object getObject()

After parsing the document, this method must be called to get the Object. This method can only be called once, because after calling the internal variables are resetted to reuse the object.

Specified by:

getObject in interface ContentHandler

subHandlerFinishedWithObject

public void subHandlerFinishedWithObject(Object subHandlerObject)

Callback-method from the subHandler to inform the parentHandler about the finished object

Specified by:

subHandlerFinishedWithObject in interface ContentHandler

Specified by:

subHandlerFinishedWithObject in class XMLReadHandlerImpl

Parameters:

subHandlerObject - The object created by the subHandler.