<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE script:module PUBLIC "-//OpenOffice.org//DTD OfficeDocument 1.0//EN" "module.dtd">
<script:module xmlns:script="http://openoffice.org/2000/script" script:name="stm_DataInputStream" script:language="StarBasic">


'*************************************************************************
'
'  Licensed to the Apache Software Foundation (ASF) under one
'  or more contributor license agreements.  See the NOTICE file
'  distributed with this work for additional information
'  regarding copyright ownership.  The ASF licenses this file
'  to you under the Apache License, Version 2.0 (the
'  "License"); you may not use this file except in compliance
'  with the License.  You may obtain a copy of the License at
'  
'    http://www.apache.org/licenses/LICENSE-2.0
'  
'  Unless required by applicable law or agreed to in writing,
'  software distributed under the License is distributed on an
'  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
'  KIND, either express or implied.  See the License for the
'  specific language governing permissions and limitations
'  under the License.
'
'*************************************************************************





' Be sure that all variables are dimensioned:
option explicit


' REQUIRED VARIABLES for interface/service tests:
Global cFileName As String
Global oFileAcc  As Object
Global oInputStream  As Object
Global oOutputStream As Object
Global bInputStream  As Boolean
Global bOutputStream As Boolean


Sub CreateObj()

'*************************************************************************
' COMPONENT: 
' stm.DataInputStream
'*************************************************************************
On Error Goto ErrHndl
    Dim oOS As Object

    bInputStream  = false
    bOutputStream = false
    cFileName = utils.getTempFileURL("BasicDataInputStream.dat")
    oFileAcc = createUnoService("com.sun.star.ucb.SimpleFileAccess")

    oObj = createUnoService("com.sun.star.io.DataInputStream")

    'Creating a file...
    oOS = oFileAcc.openFileWrite(cFileName)
    oOS.closeOutput()

    ResetStreams()
Exit Sub
ErrHndl:
    Test.Exception()
End Sub

Function getOutStream() As Object
On Error goto ErrHndl
    Dim oFO As Object
    ResetStreams()
    oInputStream.closeInput()
    oOutputStream = createUnoService("com.sun.star.io.DataOutputStream")
    oFileAcc.kill(cFileName)
    oFO = oFileAcc.openFileWrite(cFileName)
    oOutputStream.setOutputStream(oFO)
    bOutputStream = true
    getOutStream() = oOutputStream
Exit Function
ErrHndl:
    Test.Exception()
    getOutStream() = NULL_OBJECT
End Function

Function getInStream() As Object
On Error goto ErrHndl
    ResetStreams()
    getInStream() = oInputStream
Exit Function
ErrHndl:
    Test.Exception()
    getInStream() = NULL_OBJECT
End Function

Sub ResetStreams()
On Error goto ErrHndl
    if bInputStream then
        oInputStream.closeInput()
        bInputStream = false
    end if
    if bOutputStream then
        oOutputStream.closeOutput()
        bOutputStream = false
    end if

    if NOT oFileAcc.exists(cFileName) then
        Dim oFO As Object
        oFO = oFileAcc.openFileWrite(cFileName)
        oFO.closeOutput()
    end if

    oInputStream = oFileAcc.openFileRead(cFileName)
    bInputStream = true
    oObj.setInputStream(oInputStream)
Exit Sub
ErrHndl:
    Test.Exception()
    resume next
End Sub

Sub DisposeObj()
    if NOT isNULL(oObj) then oObj.closeInput()
End Sub
</script:module>
