Difference between revisions of "Excelreader-call"
(→{{VULCON}} {{GVCONSOLE}} Configuration) |
(→{{VULCON}} / {{GVCONSOLE}} Configuration) |
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Default to true. | Default to true. | ||
* ''type'': call | * ''type'': call | ||
+ | |||
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+ | The following example shows the configuration generated from {{L_VULCON}} or {{GVConsole}} when you configure an excelReader operation: | ||
+ | |||
+ | <GVSystems name="SYSTEMS" type="module"> | ||
+ | <Systems> | ||
+ | <Description>This section contains a list of all systems connected to GreenVulcano ESB</Description> | ||
+ | <System id-system="DAMA" system-activation="on"> | ||
+ | <Channel id-channel="CHANNEL_WEBGUI"> | ||
+ | <excelreader-call class="it.greenvulcano.gvesb.virtual.excel.reader.GVExcelReaderCallOperation" | ||
+ | name="ReadExcelInput" type="call" onlyData="true"/> | ||
+ | </Channel> | ||
+ | </System> | ||
+ | </Systems> | ||
+ | </GVSystems> | ||
=={{GVCONSOLE}} Configuration== | =={{GVCONSOLE}} Configuration== |
Revision as of 18:38, 2 October 2011
Definition
Many IT applications, within their business process, need to read an Excel file. Gvvcl-excelreader plug-in helps IT organizations integrating applications that use Excel format to execute their business. Gvvcl-excelreader plug-in is compatible with all Excel formats up to version 2003, and it is very simple to configure. It receives in input a binary stream containing the Excel file, and returns in output a corresponding XML structure. At the output of Gvvcl-excelreader plug-in is possible to apply a ChangeGvBufferNode operation (with OGNL script or an XSL transformation) to retrieve all interested data.
GreenVulcano® ESB provides two different tools, GV Console® and VulCon®, to configure all supported plug-ins in GV services.
VulCon / GV Console Configuration
excelreader-call is the operation that must be configured into VulCon® or Template:GVConsole System section, to convert an Excel file in GVBuffer.object field, in an XML document. In order to add an operation excelreader-call you must define the following fields:
- class: it.greenvulcano.gvesb.virtual.excel.reader.GVExcelReaderCallOperation (java class that manage excelReader invocation).
- name: this field identify the operation name that you will use in service definition.
- onlyData: is a boolean field, it enabled in output cell formatting informations. If true, insert in the XML document also the cell formatting informations.
Default to true.
- type: call
The following example shows the configuration generated from VulCon® or Template:GVConsole when you configure an excelReader operation:
<GVSystems name="SYSTEMS" type="module">
<Systems> <Description>This section contains a list of all systems connected to GreenVulcano ESB</Description> <System id-system="DAMA" system-activation="on"> <Channel id-channel="CHANNEL_WEBGUI"> <excelreader-call class="it.greenvulcano.gvesb.virtual.excel.reader.GVExcelReaderCallOperation" name="ReadExcelInput" type="call" onlyData="true"/> </Channel> </System> </Systems>
</GVSystems>
GV Console Configuration
excelreader-call is the operation that must be configured into GV Console® System section, to convert an Excel file in GVBuffer.object field, in a XML document.
To add an operation excelreader-call you must perform the following operation:
- Open GV Console® System section
- Click button "insert before" and select label --> excelreader-call
- In layout fill in field name, i.e. the name of operation that will be used in VulCon® Service section
- Other fields class, onlyData and type will be ignored
At this point, you have configured an operation of type excelreader-call in GV Console®.
To use an excelreader-call in a GreenVulcano® ESB service, you need to perfom the following steps:
- In GV Console® Service section select the services that you want to modify or, alternatively, you can create a new Services
- On flow tag, click the add operation node button and select "insert before"
- On the list of GreenVulcano node select GvOperationNode
- On the template that appear, select from drop down list, input field, next-node-id and as operation-name the operation configured in the system. Fill in fields id and output.
- Click save button and terminate editing
- Reload configuration from GV Console®
At this point you have configured a service with an excelreader operation.
Example
This example shows an XML document generated by a simple Excel sheet (without cols and rows grouping). Given an Excel sheet with the following structure:
ID1 | ID2 | ID3 | ID4 | ID5 | ID6 | ID7 |
---|---|---|---|---|---|---|
23 | 23232 | 23 | 23333 | 1 | 2 | 3 |
24 | 24444 | 23 | 23332 | 1 | 2 | 3 |
excelreader-call generates the following XML:
<?xml version="1.0" encoding="UTF-8"?>
<workbook>
<sheet number="0">
<name><![CDATA[Foglio1]]></name>
<row number="0">
<col number="0">
<data><![CDATA[ID1]]></data>
</col>
<col number="1">
<data><![CDATA[ID2]]></data>
</col>
<col number="2">
<data><![CDATA[ID3]]></data>
</col>
<col number="3">
<data><![CDATA[ID4]]></data>
</col>
<col number="4">
<data><![CDATA[ID5]]></data>
</col>
<col number="5">
<data><![CDATA[ID6]]></data>
</col>
<col number="6">
<data><![CDATA[ID7]]></data>
</col>
</row>
<row number="1">
<col number="0">
<data><![CDATA[23]]></data>
</col>
<col number="1">
<data><![CDATA[23232]]></data>
</col>
<col number="2">
<data><![CDATA[23]]></data>
</col>
<col number="3">
<data><![CDATA[711]]></data>
</col>
<col number="4">
<data><![CDATA[1]]></data>
</col>
<col number="5">
<data><![CDATA[1]]></data>
</col>
<col number="6">
<data><![CDATA[1]]></data>
</col>
</row>
<row number="2">
<col number="0">
<data><![CDATA[23]]></data>
</col>
<col number="1">
<data><![CDATA[711]]></data>
</col>
<col number="2">
<data><![CDATA[23]]></data>
</col>
<col number="3">
<data><![CDATA[23232]]></data>
</col>
<col number="4">
<data><![CDATA[1]]></data>
</col>
<col number="5">
<data><![CDATA[1]]></data>
</col>
<col number="6">
<data><![CDATA[1]]></data>
</col>
</row>
</sheet>
</workbook>
With a ChangeGvBufferNode is possible parsing XML and retrieve any tag and value.