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/*----------------------------------------------------------------------------*/
/* */
/* Copyright (c) 2011-2013 Rexx Language Association. All rights reserved. */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the Common Public License v1.0 which accompanies this */
/* distribution. A copy is also available at the following address: */
/* http://www.oorexx.org/license.html */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in */
/* the documentation and/or other materials provided with the distribution. */
/* */
/* Neither the name of Rexx Language Association nor the names */
/* of its contributors may be used to endorse or promote products */
/* derived from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */
/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */
/* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* */
/*----------------------------------------------------------------------------*/
/* ooDialog User Guide
Exercise 07: MessageSender.rex v01-00 11Feb13
Contains: classes: "MessageSender", "HRSms"
Message Sender is a test/debug/utility support class that enables a user to
send a message to a component and see what's returned.
Pre-requisites: the Object Manager (objectMgr.rex). In addition, Message
Sender should be launched from some other dialog, since it
uses popupAsChild.
Description: A sample Message Sender utility for sending messages to
components. Note that the messages that can be sent are probably
limited, since a full test has not been done.
Outstanding Problems: None reported.
Changes:
v01-00 07Jun12: First Version
07Aug12: Changed self~execute() to popupAsChild. Launched via a menu
item in the Order Management dialog (OrderMgr.rex)
14Jan13: Commented-out use of ViewMgr (ViewMgr function incomplete)
05Feb13: Changed edit controls to comboboxes for Target and Method.
Provided for user add of methods and target components
(not saved over a dialog close).
11feb13: No change to function - minor tidy-up of a few comments.
Description:
Target: className instanceName
Method: a single method name
Data: Either strings separated by "|" (will be sent as an array), or:
[name]value [name] value ... (will be sent as a directory), or:
space-separated strings (each is interpreted as a separate
attribute, so a parameter such as 'aaa bbb' cannot be sent
at least not in this version).
------------------------------------------------------------------------------*/
.Application~addToConstDir("..\Support\MessageSender.h")
::REQUIRES "ooDialog.cls"
::CLASS 'MessageSender' SUBCLASS rcDialog PUBLIC
/*----------------------------------------------------------------------------
Class Methods
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
newInstance - class method to create a msg sender. */
::METHOD newInstance CLASS PUBLIC
use arg rootDlg
--say ".MessageSender-newInstance."
dlg = .MessageSender~new("..\Support\MessageSender.rc", "DLG_MESSAGESENDER") --,,"MessageSender.h")
dlg~activate(rootDlg)
return
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
init
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD init
expose objectMgr
--say "MessageSender-init-01."
forward class (super) continue
.local~my.MsgSender = self
return
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
Activate - Shows the Dialog - i.e. makes it visible to the user.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD activate unguarded
expose rootDlg
use arg rootDlg
--say "MessageSender-activate-01."
self~popupAsChild(rootDlg, "SHOWTOP") --, ,"IDI_CUSTLIST_DLGICON")
return
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
initDialog - initialises the MessageSender
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD initDialog
expose cbTarget cbMethod ecData ecReply btnSend btnClear stErrorMsg objectMgr -
chkStoreTarget chkStoreMethod arrTargets arrMethods
--say "MessageSender-initDialog-01."
cbTarget = self~newComboBox("IDC_MS_COMPONENT")
cbMethod = self~newComboBox("IDC_MS_METHOD")
ecData = self~newEdit("IDC_MS_DATA")
ecReply = self~newEdit("IDC_MS_REPLY")
stErrorMsg = self~newStatic("IDC_MS_ERRORMSG")
btnSend = self~newPushButton("IDC_MS_SEND")
btnClear = self~newPushButton("IDC_MS_CLEAR")
chkStoreTarget = self~newCheckBox("IDC_MS_STORETARGET")
chkStoreMethod = self~newCheckBox("IDC_MS_STOREMETHOD")
self~connectButtonEvent("IDC_MS_SEND","CLICKED",sendMessage)
self~connectButtonEvent("IDC_MS_CLEAR","CLICKED",clearEntries)
self~connectHelp(onHelp)
errorFont = self~createFontEx("Arial Italic")
stErrorMsg~setFont(errorFont)
stErrorMsg~settext(.HRSms~helpMsg)
-- Get id of ObjectMgr:
objectMgr = .local~my.objectMgr
--say "MessageSender-initDialog-02 - objectMgr =" objectMgr
if objectMgr = .nil then do -- Check if ObjectMgr is present - .nil if not.
stErrorMsg~setText(.HRSms~prefix1||.HRSms~noObjectMgr)
btnSend~disable()
end
arrTargets = .array~of("ObjectMgr The","PersonModel PA150")
arrMethods = .array~of("showModel","query","list")
do i over arrTargets
cbTarget~add(i)
end
do i over arrMethods
cbMethod~add(i)
end
return
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
Event Handler Methods
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
sendMessage - Sends a message to the specified component.
Returns .false if error found.
Note 1: the return from the target object must be either a bool
or a directory. (Later versions may add array and string).
Note 2: The "parseData" method displays any error messages
resulting from errors in the data provided by the user.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD sendMessage
expose objectMgr ecReply stErrorMsg btnClear chkStoreTarget chkStoreMethod -
cbTarget cbMethod arrTargets arrMethods
--say; say "---------------------------------------------------------"
--say "MessageSender-sendMessage-01."
ecReply~setText("") -- Clear any reply data from previous requests.
--error = .false -- if true, indicates error in data provided.
message = self~parseData -- data is a directory, array, string; .false if error.
if message = .false then do -- if errors found in the data.
--say "MessageSender-sendMessage-02: message =" message
btnClear~enable() -- allow user to clear entries.
chkStoreTarget~uncheck; chkStoreMethod~uncheck
return .false
end
if message = "special" then do -- message to ObjectMgr has been dealt with.
btnClear~enable
chkStoreTarget~uncheck; chkStoreMethod~uncheck
return .true
end
-- Get the component ID (object ref) from the Object Manager:
componentRef = objectMgr~getComponentId(message["class"], message["instance"])
if componentRef = .false then do
chkStoreTarget~uncheck; chkStoreMethod~uncheck
ecReply~setText(.HRSms~rc||" "||componentRef)
stErrorMsg~setText(.HRSms~prefix1||" "||.HRSms~noObject)
btnClear~enable
return .false
end
-- Send the Message and Display the response:
--say "MessageSender-sendMessage-03: message[data] =" message["data"]
response = sendMsg(componentRef, message["method"],message["data"])
select
when response = "SendMsg - Syntax Error" then do
chkStoreTarget~uncheck; chkStoreMethod~uncheck
stErrorMsg~setText(.HRSms~noResponse)
btnClear~enable
return
end
when response = "SendMsg - No Method" then do
chkStoreTarget~uncheck; chkStoreMethod~uncheck
stErrorMsg~setText(.HRSms~noTgtMethod)
btnClear~enable
return
end
when response = .false then do
chkStoreTarget~uncheck; chkStoreMethod~uncheck
ecReply~setText(.HRSms~rc||" "||response)
return
end
when response~isa(.String) then do
ecReply~setText(response)
end
when response~isa(.Directory) then do
replyText = ""
do i over response
replyText = replyText||i||":" response[i]||"; "
end
ecReply~setText(replyText)
end
otherwise do
ecReply~setText(.HRSms~noDir1 response .HRSms~noDir2)
end
end
btnClear~enable
-- say "MessageSender-sendMessage-04: response =" response
-- Message sent successfully - so now action the checkboxes:
self~storeEntry(cbTarget, chkStoreTarget)
self~storeEntry(cbMethod, chkStoreMethod)
return
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
storeEntry - Store a new item in either Target or Method comboboxes if a
checkbox has been checked.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD storeEntry PRIVATE
use strict arg comboBox, checkBox
--say "MessageSender-storeEntry-01."
if checkBox~getCheckState = "CHECKED" then do
newItem = comboBox~getEditControl()~getLine(1)
ix = comboBox~find(newitem) -- case-insensitive find
if ix = 0 then do -- if item not found, then add it.
comboBox~add(newItem)
end
checkBox~uncheck()
end
return
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
clearEntries - Clear user entries and error messages.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD clearEntries
expose cbTarget cbMethod ecData ecReply stErrorMsg btnClear
cbTarget~setText("")
cbMethod~setText("")
ecData~setText("")
ecReply~setText("")
stErrorMsg~setText("")
btnClear~disable
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
onHelp - Display help.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD onHelp
cr = .endOfLine
msg = .HRSms~help2||cr||.HRSms~help3||cr -
||.HRSms~help4||cr||.HRSms~help5||cr -
||.HRSms~help6||cr||.HRSms~help7||cr -
||.HRSms~help8
title = .HRSms~help1
buttons = "OK"
--ans = MessageDialog(msg, 0, title, "OK", "INFORMATION")
ans = MessageDialog(msg, self~dlgHandle, title, "OK", "INFORMATION")
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
Application Methods
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
parseData - Check the message info provided by the user.
Required data formats are:
Target component: "class instance". Allowed are: multiple spaces between
"class" and "instance"; leading spaces before "class". (Later version may
provide for class messages).
Method: a method name - a single string, e.d. "doThat". Any leading or
trailing spaces are removed.
Message Parameters: A string, and array, or a directory, as follows:
String, e.g.: "AB123, Joe Bloggs Inc., 124.50" The first non-white-space
character must not be "[" or "|", as these characters are used to decide
whether the data format is string, array or directory.
Array, e.g.: "| AB123 | Joe Bloggs Inc. | 124.50 "
The separator between elements is "|". Leading and trailingspaces are
removed from each array item. Thus the result of the above example would
be: "AB123|Joe Bloggs Inc.|124.50".
Directory, e.g.: "[CustNo] AB123 [Name] Joe Bloggs Inc. [Debt] 124.50".
The indices are in square brackets. Leading and trailing spaces of both
indices and items are removed.
Returns:
If no errors found, this method returns the message data in the directory
"message". This has four indexes: "class", "instance", "method", "data".
If format errors are found, a message is displayed, and .false is returned.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD parseData
expose cbTarget cbMethod ecData stErrorMsg objectMgr rootDlg
stErrorMsg~setText("") -- remove any previous error message.
--say; say "MessageSender-parseData-01."
message = .Directory~new
-- get target component name:
--target = cbTarget~getText(1)
target = cbTarget~getEditControl()~getLine(1)
--say "MessageSender-parseData-02 target =" target
parse var target class instance
targetError = .false
if class = "" | instance = "" then targetError = .true
else do
message["class"] = class~strip;
message["instance"] = instance~strip
end
-- get Method/Message Name:
targetMethodError = .false
targetMethod = cbMethod~getEditControl()~getLine(1)
--say "MessageSender-parseData-03 targetMethod =" targetMethod
if targetMethod~words \= 1 then targetMethodError = .true
else message["method"] = targetMethod~strip
-- Special Treatments:
if message["class"] = "ObjectMgr" & message["instance"] = "The" then do
-- Only List and ShowModel allowed (at present).
--say "MessageSender-parseData-04: msg to ObjectMgr."
method = message["method"]
method = method~upper
select
when method = "LIST" then do
objectMgr~list
return "special"
end
when method = "SHOWMODEL" then do -- assume data is a string
modelName = ecData~getLine(1)
parse var modelName modelClass " " modelInstance
modelClass = modelClass~strip; modelInstance = modelInstance~strip
--say "MessageSender-parseData-05: ViewMgr~parentOffsetDialog = self."
-- Setup self as "Parent" dialog for offsetting the view to be shown
--(do it here because other components may have done it previously):
.local~my.ViewMgr~parentOffsetDlg = self
-- Now show the model:
--say "MessageSender-parseData-06: objectMgr~showModel."
r = objectMgr~showModel(modelClass, modelInstance, rootDlg)
--say "MessageSender-parseData-07: return =" r
return "special"
end
otherwise do
--say "MessageSender-parseData-08:" method "is invalid."
targetMethodError = .true
--return .false
end
end
end
-- Following Code does not work - left here in case needed in any following exercises.
/* else do
--say "MessageSender-parseData-01d."
if message["class"] = "ViewMgr" & message["instance"] = "The" then do
method = message["method"]
method = method~upper
if method = "SHOWMODEL" then do
modelName = ecData~getLine(1)
parse var modelName modelClass " " modelInstance
modelClass = modelClass~strip; modelInstance = modelInstance~strip
.local~my.ViewMgr~parentOffsetDlg = self
-- Now show the model:
r = .local~my.ViewMgr~showModel(modelClass, modelInstance, rootDlg)
--say "MessageSender-parseData-01e: return =" r
return "special"
end
end
end
*/
-- Normal treatments:
-- get Message Data, and put in an array, directory or string:
-- Note: ecData~lines returns 1 if control is empty(!).
msgData = ""
do i=1 to ecData~lines()
msgData = msgData||ecData~getLine(i)
--say "MessageSender-parseData-02: Data = '"||msgData||"'"
end
-- Everything now in a single text string. So now check the data type:
--say "chars = '"||msgData||"'"
msgData = strip(msgData) -- remove leading & trailing blanks.
if left(msgData,1) = "" then msgDataType = .false -- i.e. no data
else if left(msgData,1) = "[" then msgDataType = "dir"
else if left(msgData,1) = "|" then msgDataType = "arr"
else msgDataType = "str"
--say "msgDataType =" msgDataType;
formatError = .false
Select
when msgDataType = .false then msgData = ""
when msgDataType = "dir" then do
dirMsgData = .Directory~new
separators = msgData~countStr("["); closers = msgData~countStr("]")
if separators \= closers then formatError = .true
if \formatError then do
do i = 1 to separators
parse var msgData "[" index "]" msgData
parse var msgData item "["
dirMsgData[index] = item~strip
end
message["data"] = dirMsgData
end
end
when msgDataType = "arr" then do
arrMsgData = .Array~new
separators = msgData~countStr("|")
--say "No. Separators =" separators
msgData = msgData~substr(2) -- strip leading "|"
do i=1 to separators
parse var msgData item "|" msgData
item = item~strip
arrMsgData[i] = item
--say "item =" "'"||item||"'"
end
message["data"] = arrMsgData
end
otherwise do -- msgDataType = "str"
message["data"] = msgData
end
end -- Select
-- Check for errors:
errors = 0
if targetError then errors += 1; if targetMethodError then errors += 1
if formatError then errors += 1
if errors = 1 then errortext = .HRSms~prefix1
if errors > 1 then errortext = .HRSms~prefix2
if errors > 0 then do
if targetError then errorText = errorText||.HRSms~badTarget
if targetMethodError then errorText = errorText||" "||.HRSms~badMethod
if formatError then errorText = errorText||" "||.HRSms~badData
stErrorMsg~setText(errorText)
return .false
end
return message
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*----------------------------------------------------------------------------
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
::METHOD getObjectRef
expose objectMgr
use arg target
parse var target class "-" instance
ref = objectMgr~getComponentRef(class, instance)
/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
/*============================================================================*/
/*//////////////////////////////////////////////////////////////////////////////
==============================================================================
sendMsg - a 'Send Message' Routine. v00-01 08May12
--------
This routine sends the message to the specified component instance.
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
::ROUTINE sendMsg
use arg targetObject, targetMethod, data
--say "MessageSender-sendMsg-01: targetObject targetMethod data =" targetObject targetMethod data
SIGNAL ON SYNTAX NAME catchIt1
SIGNAL ON NOMETHOD NAME catchIt2
msg = .Message~new(targetObject, targetMethod, i, data)
response = msg~send
--say "MessageSender-sendMsg-02: response =" response
return response
catchIt1: say "MessageSender-sendMsg-03: CatchIt1 - Syntax."
SIGNAL OFF SYNTAX
return "SendMsg - Syntax Error"
catchIt2: say "MessageSender-sendMsg-04: CatchIt2 - NoMethod."
SIGNAL OFF NOMETHOD
return "SendMsg - No Method"
/*============================================================================*/
/*//////////////////////////////////////////////////////////////////////////////
==============================================================================
Human-Readable Strings (HRSms) v01-00 05May12
--------
This class provides constant character strings for user-visible messages.
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
::CLASS HRSms PRIVATE
::CONSTANT prefix1 "*** Error: "
::CONSTANT prefix2 "*** Errors: "
::CONSTANT badTarget "Invalid class or Instance name."
::CONSTANT badMethod "Invalid method."
::CONSTANT badData "Invalid data format."
::CONSTANT noObject "Target component not found."
::CONSTANT noTgtMethod "No such method in target component."
::CONSTANT noResponse "Note: No response received from target object."
::CONSTANT rc "Return Code:"
::CONSTANT noObjectMgr "The Object Manager was not found. Cannot work without it."
::CONSTANT noDir1 "Reply is a"
::CONSTANT noDir2 "- cannot display with this version."
::CONSTANT help1 "Formats for data parameters:"
::CONSTANT help2 "Target: Class Instance - e.g. 'CustomerModel CU0003'"
::CONSTANT help3 "Method: method name - e.g. 'query'"
::CONSTANT help4 "Data: Formats for message data are:"
::CONSTANT help5 " Directory: '[aaa] [bbb] [c cc]'"
::CONSTANT help6 " Array: '|aaa|bbb|c cc'"
::CONSTANT help7 " String: 'aaa bbb'"
::CONSTANT help8 "Note: an added target or method is not saved over a close."
::CONSTANT helpMsg "Press F1 for help on allowable data formats."
/*============================================================================*/

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