USING Progress.Lang.*.
USING OpenEdge.Web.WebResponseWriter.
USING OpenEdge.Net.HTTP.StatusCodeEnum.
USING OpenEdge.Web.WebHandler.
USING Progress.Json.ObjectModel.*.
USING customerBE.*.
USING orderBE.*.  

BLOCK-LEVEL ON ERROR UNDO, THROW.

CLASS webh2Handler INHERITS WebHandler: 

 {"customerbe.i"}
 {"orderbe.i"}   	
		
	/*------------------------------------------------------------------------------
            Purpose: Handler for unsupported methods. The request being serviced and
            		 an optional status code is returned. A zero or null value means 
            		 this method will deal with all errors.                                                               
            Notes:                                                                        
    ------------------------------------------------------------------------------*/
	METHOD OVERRIDE PROTECTED INTEGER HandleNotAllowedMethod( INPUT poRequest AS OpenEdge.Web.IWebRequest ):
	
		/* Throwing an error from this method results in a 500/Internal Server Error response. 
        The web handler will attempt to log this exception.
 	    
        See the HandleGet method's comments on choosing a value to return from this method. */
        	
		UNDO, THROW NEW Progress.Lang.AppError("METHOD NOT IMPLEMENTED").
	END METHOD.


	/*------------------------------------------------------------------------------
            Purpose: Handler for unknown methods. The request being serviced and an 
                     optional status code is returned. A zero or null value means 
                     this method will deal with all errors.                                                               
            Notes:                                                                        
    ------------------------------------------------------------------------------*/
	METHOD OVERRIDE PROTECTED INTEGER HandleNotImplemented( INPUT poRequest AS OpenEdge.Web.IWebRequest ):
	
		/* Throwing an error from this method results in a 500/Internal Server Error response. 
        The web handler will attempt to log this exception.
 	    
        See the HandleGet method's comments on choosing a value to return from this method. */	
		UNDO, THROW NEW Progress.Lang.AppError("METHOD NOT IMPLEMENTED").
   	END METHOD.
 	
	
	/*------------------------------------------------------------------------------
            Purpose: Default handler for the HTTP GET method. The request being 
                     serviced and an optional status code is returned. A zero or 
                     null value means this method will deal with all errors.                                                               
            Notes:                                                                        
    ------------------------------------------------------------------------------*/
 	METHOD OVERRIDE PROTECTED INTEGER HandleGet( INPUT poRequest AS OpenEdge.Web.IWebRequest ):
 	
	
		DEFINE VARIABLE oResponse AS OpenEdge.Net.HTTP.IHttpResponse NO-UNDO.
        DEFINE VARIABLE oWriter   AS OpenEdge.Web.WebResponseWriter  NO-UNDO.
        DEFINE VARIABLE oBody     AS OpenEdge.Core.String            NO-UNDO.
       
        DEFINE VARIABLE jsonObj AS JsonObject NO-UNDO.
        DEFINE VARIABLE lcJSON AS LONGCHAR NO-UNDO.

        ASSIGN 
            oResponse            = NEW OpenEdge.Web.WebResponse()
            oResponse:StatusCode = INTEGER(StatusCodeEnum:OK).
        

        jsonObj = NEW JsonObject().
        
        IF ENTRY(2,poRequest:PathInfo,"/") = "Customer" THEN
        DO: 
            DEFINE VARIABLE beCustomer AS customerBE NO-UNDO.
            DEFINE VARIABLE hTTCustomer AS HANDLE NO-UNDO.
            
            beCustomer = NEW customerBE().
            beCustomer:ReadcustomerBE("",OUTPUT DATASET dsCustomer).
            hTTCustomer = TEMP-TABLE ttCustomer:HANDLE.
            hTTCustomer:WRITE-JSON ("JsonObject",jsonObj).
            lcJSON= jsonObj:GetJsonText().
            oBody = NEW OpenEdge.Core.String(lcJSON).
                      
            ASSIGN    
                oResponse:Entity = oBody
                oResponse:ContentType   = 'application/json':u
                oResponse:ContentLength = oBody:Size.
        END.
        ELSE
           IF ENTRY(2,poRequest:PathInfo,"/") = "Orders" THEN
           DO:
            DEFINE VARIABLE beOrder AS orderBE NO-UNDO.
            DEFINE VARIABLE hTTOrder AS HANDLE NO-UNDO.
            
            beOrder = NEW orderBE().
            beOrder:ReadOrderBE("",OUTPUT DATASET dsOrder).
            hTTOrder = TEMP-TABLE ttOrder:HANDLE.
            hTTOrder:WRITE-JSON ("JsonObject",jsonObj).
            lcJSON= jsonObj:GetJsonText().
            oBody = NEW OpenEdge.Core.String(lcJSON).
                      
            ASSIGN 
                oResponse:Entity = oBody
                oResponse:ContentType   = 'application/json':u
                oResponse:ContentLength = oBody:Size.
          END.
          ELSE
          DO:
            ASSIGN
                oBody = NEW OpenEdge.Core.String(
                                 'Hello '
                               + '~r~n':u   /*CRLF */
                               + 'This is the default message by th HandleGet in webh2Handler.'
                               ).
            ASSIGN
                oResponse:Entity        = oBody
                oResponse:ContentType   = 'text/plain':u
                oResponse:ContentLength = oBody:Size.                               
         END.
       
        ASSIGN 
            oWriter = NEW WebResponseWriter(oResponse).
        oWriter:Open().
        
        oWriter:Close().
        
        RETURN 0.
		
 	END METHOD. 
 	 	   	
	
END CLASS.

defaultHandler=OpenEdge.Web.CompatibilityHandler
webhandler1=MyHandler:/mycustomer
webhandler2=MyHandler:/mycustomer/{custid}

USING Progress.Lang.*.
USING OpenEdge.Web.WebResponseWriter.
USING OpenEdge.Net.HTTP.StatusCodeEnum.
USING OpenEdge.Web.WebHandler.
USING customerBE.*.
USING Progress.Json.ObjectModel.*.

BLOCK-LEVEL ON ERROR UNDO, THROW.

CLASS webh1Handler INHERITS WebHandler: 

	    {"customerbe.i"}
		
	/*------------------------------------------------------------------------------
            Purpose: Handler for unsupported methods. The request being serviced and
                     an optional status code is returned. A zero or null value means 
            	     this method will deal with all errors.                                                               
            Notes:                                                                        
    ------------------------------------------------------------------------------*/
	METHOD OVERRIDE PROTECTED INTEGER HandleNotAllowedMethod( INPUT poRequest AS OpenEdge.Web.IWebRequest ):
	
        /* Throwing an error from this method results in a 500/Internal Server Error response. 
        The web handler will attempt to log this exception.
 	    
        See the HandleGet method's comments on choosing a value to return from this method. */
        	
		UNDO, THROW NEW Progress.Lang.AppError("METHOD NOT IMPLEMENTED").
	END METHOD.


	/*------------------------------------------------------------------------------
            Purpose: Handler for unknown methods. The request being serviced and an 
                     optional status code is returned. A zero or null value means 
                     this method will deal with all errors.                                                               
            Notes:                                                                        
    ------------------------------------------------------------------------------*/
	METHOD OVERRIDE PROTECTED INTEGER HandleNotImplemented( INPUT poRequest AS OpenEdge.Web.IWebRequest ):
	
	/* Throwing an error from this method results in a 500/Internal Server Error response. 
        The web handler will attempt to log this exception.
 	    
        See the HandleGet method's comments on choosing a value to return from this method. */	

		UNDO, THROW NEW Progress.Lang.AppError("METHOD NOT IMPLEMENTED").
   	END METHOD.
 	
	
	/*------------------------------------------------------------------------------
            Purpose: Default handler for the HTTP GET method. The request being 
                     serviced and an optional status code is returned. A zero or 
                     null value means this method will deal with all errors.                                                           
            Notes:                                                                        
    ------------------------------------------------------------------------------*/
 	METHOD OVERRIDE PROTECTED INTEGER HandleGet( INPUT poRequest AS OpenEdge.Web.IWebRequest ): 	

	DEFINE VARIABLE oResponse AS OpenEdge.Net.HTTP.IHttpResponse NO-UNDO.
        DEFINE VARIABLE oWriter   AS OpenEdge.Web.WebResponseWriter  NO-UNDO.
        DEFINE VARIABLE oBody     AS OpenEdge.Core.String            NO-UNDO.
             
        DEFINE VARIABLE beCustomer AS customerBE NO-UNDO.
        DEFINE VARIABLE pcFilter AS CHAR NO-UNDO.
        DEFINE VARIABLE lcJSON AS LONGCHAR NO-UNDO.

        DEFINE VARIABLE jObj AS JsonObject.
        DEFINE VARIABLE htt AS HANDLE.
        
        jObj = NEW JsonObject().
        /* Get data from the BE */
        beCustomer = NEW customerBE().
        beCustomer:ReadcustomerBE(INPUT pcfilter,OUTPUT DATASET dsCustomer).
        htt = TEMP-TABLE ttCustomer:HANDLE.
        htt:WRITE-JSON("JsonObject", jObj).

        ASSIGN 
            oResponse            = NEW OpenEdge.Web.WebResponse()
            oResponse:StatusCode = INTEGER(StatusCodeEnum:OK)
                        .
        /* This body object can be a string or something else (JsonObject for instance) */
        lcJSON= jObj:GetJsonText().
        ASSIGN 
            oBody = NEW OpenEdge.Core.String(lcJSON).            
                              
        ASSIGN 
            oResponse:Entity        = oBody
            /* HTTP messages require a content type */
            oResponse:ContentType   = 'application/json':u
            /* ContentLength is good too */
            oResponse:ContentLength = oBody:Size
            .
        
        /* The WebResponseWriter ensures that the status line and
           all headers are writted out before the message body/entity. */
        ASSIGN 
            oWriter = NEW WebResponseWriter(oResponse).
        oWriter:Open().
        
        /* Finish writing the response message */
        oWriter:Close().
        
        /* A response of 0 means that this handler will build the entire response;
           a non-zero value is mapped to a static handler in the webapp's /static/error folder.
           The mappings are maintained in the webapps's WEB-INF/web.xml 
           A predefined set of HTTP status codes is provided in the OpenEdge.Net.HTTP.StatusCodeEnum 
           enumeration */
        RETURN 0.
		
 	END METHOD. 
 		
END CLASS.