org.xmlecho.palomar.core
Class XProcessorImpl

java.lang.Object
  org.xmlecho.palomar.core.XProcessorImpl

All Implemented Interfaces:

XProcessor

Direct Known Subclasses:

XProcessorHTTPClientImpl

public class XProcessorImpl

extends java.lang.Object

implements XProcessor

The ECHO language processor configured with mappings from Element names to classes which implement the commands' semantics.

Field Summary

protected static int	_activeProcesses
protected javax.xml.parsers.DocumentBuilder	_db
protected org.w3c.dom.Document	_doc
protected org.apache.log4j.Logger	_logger
protected org.xmlecho.palomar.dom.ElementFactory	_myElementFactory
protected org.xmlecho.palomar.dom.ElementFactory	_myResponseFactory
protected static java.util.Hashtable	_processTable
protected ECHORequest	_request
protected java.lang.String	_urlString

Constructor Summary

XProcessorImpl()

XProcessorImpl(org.xmlecho.palomar.dom.ElementFactory factory)

Method Summary

ECHORequest	compile(org.xml.sax.XMLReader reader, org.xml.sax.InputSource src)
ECHOContext	createContext() create an initial context for a request
void	eval(ECHOContext context, ECHORequest request, org.xml.sax.ContentHandler responseTarget) evaluate the request
void	eval(ECHOContext context, org.xml.sax.XMLReader reader, org.xml.sax.InputSource src, org.xml.sax.ContentHandler responseTarget) evaluate the request
org.w3c.dom.Element	evalToResponse(ECHOContext ctx, ECHORequest request) evaluate the request, constructing a DOM result with the default ElementFactory
org.w3c.dom.Element	evalToResponse(ECHOContext ctx, org.xml.sax.XMLReader reader, org.xml.sax.InputSource src) evaluate the request, constructing a DOM result with the default ElementFactory
int	getActiveProcessCount() returns the number of ECHO processes which are being processed by instances of this class at this moment
void	interruptProcess(java.lang.String processName, java.lang.String processId) interrupts a running process
void	listProcesses(org.xml.sax.ContentHandler ch) lists the running processes by emitting a SAX event stream to the target ContentHandler
void	setRequestFactory(org.xmlecho.palomar.dom.ElementFactory fact)
void	setResponseFactory(org.xmlecho.palomar.dom.ElementFactory fact)
void	setThreadProperty(java.lang.String propName, java.lang.Object value) record state information for a thread
void	setURL(java.lang.String url)

Methods inherited from class java.lang.Object

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

Field Detail

_doc

protected org.w3c.dom.Document _doc

_db

protected javax.xml.parsers.DocumentBuilder _db

_logger

protected org.apache.log4j.Logger _logger

_request

protected ECHORequest _request

_myElementFactory

protected org.xmlecho.palomar.dom.ElementFactory _myElementFactory

_myResponseFactory

protected org.xmlecho.palomar.dom.ElementFactory _myResponseFactory

_activeProcesses

protected static int _activeProcesses

_processTable

protected static java.util.Hashtable _processTable

_urlString

protected java.lang.String _urlString

Constructor Detail

XProcessorImpl

public XProcessorImpl()

XProcessorImpl

public XProcessorImpl(org.xmlecho.palomar.dom.ElementFactory factory)

Parameters:

factory - an ElementFactory for the ECHO Command objects appropriate to ECHO element names

Method Detail

setRequestFactory

public void setRequestFactory(org.xmlecho.palomar.dom.ElementFactory fact)

setResponseFactory

public void setResponseFactory(org.xmlecho.palomar.dom.ElementFactory fact)

setURL

public void setURL(java.lang.String url)

createContext

public ECHOContext createContext()

create an initial context for a request

Specified by:

createContext in interface XProcessor

getActiveProcessCount

public int getActiveProcessCount()

returns the number of ECHO processes which are being processed by instances of this class at this moment

Specified by:

getActiveProcessCount in interface XProcessor

eval

public void eval(ECHOContext context,
                 ECHORequest request,
                 org.xml.sax.ContentHandler responseTarget)
          throws java.lang.Exception

evaluate the request

Specified by:

eval in interface XProcessor

Throws:

java.lang.Exception

compile

public ECHORequest compile(org.xml.sax.XMLReader reader,
                           org.xml.sax.InputSource src)
                    throws org.xml.sax.SAXException,
                           TransformException,
                           java.io.IOException

Specified by:

compile in interface XProcessor

Throws:

org.xml.sax.SAXException

TransformException

java.io.IOException

eval

public void eval(ECHOContext context,
                 org.xml.sax.XMLReader reader,
                 org.xml.sax.InputSource src,
                 org.xml.sax.ContentHandler responseTarget)
          throws java.lang.Exception

evaluate the request

Specified by:

eval in interface XProcessor

Throws:

java.lang.Exception

evalToResponse

public org.w3c.dom.Element evalToResponse(ECHOContext ctx,
                                          ECHORequest request)
                                   throws java.lang.Exception

evaluate the request, constructing a DOM result with the default ElementFactory

Throws:

java.lang.Exception

evalToResponse

public org.w3c.dom.Element evalToResponse(ECHOContext ctx,
                                          org.xml.sax.XMLReader reader,
                                          org.xml.sax.InputSource src)
                                   throws java.lang.Exception

evaluate the request, constructing a DOM result with the default ElementFactory

Throws:

java.lang.Exception

setThreadProperty

public void setThreadProperty(java.lang.String propName,
                              java.lang.Object value)

Description copied from interface: XProcessor

record state information for a thread

Specified by:

setThreadProperty in interface XProcessor

listProcesses

public void listProcesses(org.xml.sax.ContentHandler ch)
                   throws org.xml.sax.SAXException

Description copied from interface: XProcessor

lists the running processes by emitting a SAX event stream to the target ContentHandler

Specified by:

listProcesses in interface XProcessor

Throws:

org.xml.sax.SAXException

interruptProcess

public void interruptProcess(java.lang.String processName,
                             java.lang.String processId)
                      throws java.lang.Exception

interrupts a running process

Specified by:

interruptProcess in interface XProcessor

Throws:

java.lang.Exception