cConvertBodyTo – Docs for ESB 5.x

cConvertBodyTo

1. From the repository tree view, expand the Code node and right click the Beans node. In the contextual menu, select Create Bean.

   

2. The [New Bean] wizard opens. In the Name field, type in a name for the bean, for
   example, PrintConvertToBean. Click Finish to close the wizard.

   

3. Enter the following code in the design workspace.

   package beans; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; public class PrintConvertToBean { /** * print input message * @param message */ public static void helloExample(Document message) { if (message == null) { System.out.println("There's no message here!"); return; } Element rootElement = message.getDocumentElement(); if (rootElement == null) { System.out.println("There's no root element here!"); return; } System.out.println("The root element name is:" + rootElement.getNodeName()); System.out.println("The book categories are:"); NodeList types = rootElement.getElementsByTagName("category"); for(int i = 0;i<types.getLength();i++){ Element child = (Element) types.item(i); System.out.println(child.getFirstChild().getNodeValue()); } } }

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   package beans;   import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.NodeList; public class PrintConvertToBean {   /** * print input message * @param message */ public static void helloExample(Document message) { if (message == null) { System.out.println("There's no message here!"); return; } Element rootElement = message.getDocumentElement(); if (rootElement == null) { System.out.println("There's no root element here!"); return; } System.out.println("The root element name is:" + rootElement.getNodeName()); System.out.println("The book categories are:"); NodeList types = rootElement.getElementsByTagName("category"); for(int i = 0;i<types.getLength();i++){ Element child = (Element) types.item(i); System.out.println(child.getFirstChild().getNodeValue()); } } }

4. Press Ctrl+S to save your bean.

1. Drag and drop a cFile, a cConvertBodyTo, a cBean and a cBeanRegister
   from the Palette onto the workspace.

2. Link the cFile, cConvertBodyTo and cBean
   using the Row > Route connection as shown above.

3. Label the components to better identify their functionality.

1. Double-click the cFile component to open
   its Basic settings view in the Component tab.

   

2. In the Path field, enter or browse to the
   path to the source XML file.

   If the source file folder contains more than one file, enter the name of
   the XML file of interest in the FileName
   field, and leave the other parameters as they are.

3. Double-click the cConvertBodyTo component
   to open its Basic settings view in the
   Component tab.

   

4. In the Target Class Name field, enter
   your target class name, org.w3c.dom.Document.class in this scenario.

5. Double-click the cBeanRegister component
   to open its Basic settings view in the
   Component tab.

   

6. In the Id field, enter
   "bean".

   Select the Simple option and in the
   Class Name field, enter the name of the
   bean to be invoked, beans.PrintConvertToBean in this scenario.

7. Double-click the cBean component to open
   its Basic settings view in the Component tab.

   

8. Select Reference and in the Id field, enter "bean" to call the
   bean that is registered by the cBeanRegister.

9. Press Ctrl+S to save your Route.

1. Click the Code tab at the bottom of the
   design workspace to check the generated code.

   

   As shown above, the message from the endpoint
   Read_message_cFile_1 has its body converted to
   org.w3c.dom.Document.class by
   cConvertBodyTo_1, and then processed by bean
   invoked by cBean_1.

2. Press F6 to execute the Route.

   RESULT: The root element name and the contents of the category elements are displayed.