Hi Cesar,

I just noticed your discriminated types in [2] don't have names ... as for 
every case in the typeSwitch a new type is generated, you need to give them 
names.
Please try that and check if the error goes away.

Chris


Am 14.06.20, 17:59 schrieb "Cesar Garcia" <cesar.gar...@ceos.com.ve>:

    Very grateful for your prompt response,

    Corrected at point [1]

    Unfortunately, the build process still fails when I add the 'typeSwitch' in
    the structure as shown in [2],

    I attach the message of error in [3].

    Thank you very much for any help you can provide,

    Best regards,


    [1]
    [discriminatedType 'S7Payload' [uint 8 'messageType', S7Parameter
    'parameter']
        [typeSwitch 'parameter.discriminatorValues[0]', 'messageType'
            ['0x04','0x03' S7PayloadReadVarResponse
                [array S7VarPayloadDataItem 'items' count 'CAST(parameter,
    S7ParameterReadVarResponse).numItems' ['lastItem']]
            ]
            ['0x05','0x01' S7PayloadWriteVarRequest
                [array S7VarPayloadDataItem 'items' count
    'COUNT(CAST(parameter, S7ParameterWriteVarRequest).items)' ['lastItem']]
            ]
            ['0x05','0x03' S7PayloadWriteVarResponse
                [array S7VarPayloadStatusItem 'items' count 'CAST(parameter,
    S7ParameterWriteVarResponse).numItems']
            ]
            ['0x00','0x07' S7PayloadUserData
    *            [array S7PayloadUserDataItem 'items' count
    'COUNT(CAST(parameter, S7ParameterUserData).items)' ['CAST(CAST(parameter,
    S7ParameterUserData).items[0],
    S7ParameterUserDataItemCPUFunctions).cpuFunctionType','CAST(CAST(parameter,
    S7ParameterUserData).items[0],
    S7ParameterUserDataItemCPUFunctions).cpuSubfunction'*]]
            ]
        ]
    ]

    [2]
    [discriminatedType 'S7PayloadUserDataItem' [uint 4 'cpuFunctionType', uint
    8 'cpuSubfunction']
        [enum     DataTransportErrorCode 'returnCode']
        [enum     DataTransportSize      'transportSize']
        [implicit uint 16                'dataLength' 'lengthInBytes - 4']
        [typeSwitch 'cpuSubfunction'
            ['0x01'
                [simple   SzlId                  'szlId']
                [simple   uint 16                'szlIndex']
                [typeSwitch 'cpuFunctionType'
                    ['0x04' S7PayloadUserDataItemCpuFunctionReadSzlRequest
                    ]
                    ['0x08' S7PayloadUserDataItemCpuFunctionReadSzlResponse
                        [const    uint 16 'szlItemLength' '28']
                        [implicit uint 16 'szlItemCount'  'COUNT(items)']
                        [array SzlDataTreeItem 'items' count 'szlItemCount']
                    ]
                ]
            ]
            ['0x02'
    *            [simple   uint 16                'Mode']*
            ]
        ]
    ]


    [3]

    --- plc4x-maven-plugin:1.2.0:generate-driver (generate-driver) @
    plc4j-driver-s7 ---
    Generating type DataItem
    Generating type COTPParameterDisconnectAdditionalInformation
    Generating type S7PayloadWriteVarRequest
    ------------------------------------------------------------------------
    BUILD FAILURE
    ------------------------------------------------------------------------
    Total time:  2.220 s
    Finished at: 2020-06-14T11:27:37-04:00
    ------------------------------------------------------------------------
    Failed to execute goal
    org.apache.plc4x.plugins:plc4x-maven-plugin:1.2.0:generate-driver
    (generate-driver) on project plc4j-driver-s7: Error generating sources:
    Error generating output for type 'S7PayloadWriteVarRequest': Java method
    
"org.apache.plc4x.language.java.JavaLanguageTemplateHelper.getArgumentType(org.apache.plc4x.plugins.codegenerator.types.references.TypeReference,
    int)" threw an exception when invoked on
    org.apache.plc4x.language.java.JavaLanguageTemplateHelper object
    "org.apache.plc4x.language.java.JavaLanguageTemplateHelper@5fa0141f"; see
    cause exception in the Java stack trace.

    ----
    FTL stack trace ("~" means nesting-related):
    - Failed at: ${helper.getArgumentType(field.type, ...  [in template
    "templates/java/io-template.ftlh" at line 136, column 248]
    ----: Could not find definition of complex type S7VarPayloadDataItem
    -> [Help 1]

    To see the full stack trace of the errors, re-run Maven with the -e switch.
    Re-run Maven using the -X switch to enable full debug logging.

    For more information about the errors and possible solutions, please read
    the following articles:
    [Help 1]
    http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException




    El dom., 14 jun. 2020 a las 5:05, Christofer Dutz (<
    christofer.d...@c-ware.de>) escribió:

    > Hi Cesar,
    >
    > I just had a look at your mspec changes. I think it shouldn't be
    > "getCpuSubfunction" but " cpuSubfunction" ... the code generator takes 
care
    > of generating the right access code. For my C templates this code is
    > sometimes greatly different from what you would expect in Java.
    >
    > Actually that should be about all that has to be changed.
    >
    > Chris
    >
    >
    > Am 13.06.20, 22:50 schrieb "Cesar Garcia" <cesar.gar...@ceos.com.ve>:
    >
    >     Hi,
    >
    >     I am trying to perform the migration to add the functionalities for
    > the S7
    >     driver, associated with the subscription handling of alarm and system
    >     events, but I am generating a failure in compiling the driver from the
    >     mspec.
    >
    >     In [1] I extend the step of the parameter 'cpuSubFunction' since I
    > require
    >     it to indicate the subscription model. The change is in bold.
    >
    >     In [2] I select the type based on the 'cpuSubFunction'.
    >
    >     I try to generate the driver and the compiler sends me the message
    >     indicated in [3]. It points to 'S7PayloadWriteVarRequest', but I
    > haven't
    >     touched it.
    >
    >     I appreciate your comments,
    >
    >
    >
    >     [1]
    >
    >     [discriminatedType 'S7Payload' [uint 8 'messageType', S7Parameter
    >     'parameter']
    >         [typeSwitch 'parameter.discriminatorValues[0]', 'messageType'
    >             ['0x04','0x03' S7PayloadReadVarResponse
    >                 [array S7VarPayloadDataItem 'items' count 'CAST(parameter,
    >     S7ParameterReadVarResponse).numItems' ['lastItem']]
    >             ]
    >             ['0x05','0x01' S7PayloadWriteVarRequest
    >                 [array S7VarPayloadDataItem 'items' count
    >     'COUNT(CAST(parameter, S7ParameterWriteVarRequest).items)'
    > ['lastItem']]
    >             ]
    >             ['0x05','0x03' S7PayloadWriteVarResponse
    >                 [array S7VarPayloadStatusItem 'items' count
    > 'CAST(parameter,
    >     S7ParameterWriteVarResponse).numItems']
    >             ]
    >             ['0x00','0x07' S7PayloadUserData
    >                 [array S7PayloadUserDataItem 'items' count
    >     'COUNT(CAST(parameter, S7ParameterUserData).items)'
    > ['CAST(CAST(parameter,
    >     S7ParameterUserData).items[0],
    >     S7ParameterUserDataItemCPUFunctions).cpuFunctionType',*
    >     'CAST(CAST(parameter, S7ParameterUserData).items[0],
    >     S7ParameterUserDataItemCPUFunctions).getCpuSubfunction']*]
    >             ]
    >         ]
    >     ]
    >
    >     [2]
    >
    >     [discriminatedType 'S7PayloadUserDataItem' [uint 4 'cpuFunctionType',
    > uint
    >     8 'cpuSubfunction']
    >         [enum     DataTransportErrorCode 'returnCode']
    >         [enum     DataTransportSize      'transportSize']
    >         [implicit uint 16                'dataLength' 'lengthInBytes - 4']
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >
    >     *  [typeSwitch 'cpuSubfunction'        ['0x01'            [simple
    >  SzlId
    >                    'szlId']            [simple   uint 16
    >      'szlIndex']            [typeSwitch 'cpuFunctionType'
    >     ['0x04' S7PayloadUserDataItemCpuFunctionReadSzlRequest                
]
    >                 ['0x08' S7PayloadUserDataItemCpuFunctionReadSzlResponse
    >                 [const    uint 16 'szlItemLength' '28']
    >     [implicit uint 16 'szlItemCount'  'COUNT(items)']
    > [array
    >     SzlDataTreeItem 'items' count 'szlItemCount']                ]
    >     ]        ]        ['0x02'        ]    ]*
    >     ]
    >
    >     [3]
    >     Failed to execute goal
    >     org.apache.plc4x.plugins:plc4x-maven-plugin:1.2.0:generate-driver
    >     (generate-driver) on project plc4j-driver-s7: Error generating 
sources:
    >     Error generating output for type 'S7PayloadWriteVarRequest': Java
    > method
    >
    > 
"org.apache.plc4x.language.java.JavaLanguageTemplateHelper.getArgumentType(org.apache.plc4x.plugins.codegenerator.types.references.TypeReference,
    >     int)" threw an exception when invoked on
    >     org.apache.plc4x.language.java.JavaLanguageTemplateHelper object
    >     "org.apache.plc4x.language.java.JavaLanguageTemplateHelper@8ac512e";
    > see
    >     cause exception in the Java stack trace.
    >
    >     ----
    >     FTL stack trace ("~" means nesting-related):
    >     - Failed at: ${helper.getArgumentType(field.type, ...  [in template
    >     "templates/java/io-template.ftlh" at line 136, column 248]
    >     ----: Could not find definition of complex type S7VarPayloadDataItem
    >     -> [Help 1]
    >
    >
    >     --
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    *GALPON SERVICIO INDUSTRIALES Y NAVALES FA, C.A.,*
    *PISO 1, OFICINA 2, AV. RAUL LEONI, SECTOR GUAMACHITO,*

    *FRENTE A LA ASOCIACION DE GANADEROS,BARCELONA,EDO. ANZOATEGUI*
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