Using parse template component
Download as PPTX, PDF0 likes601 views
The document discusses using a parse template component in Mule to load an external file as a template, insert data from Mule message variables into the template, and set the output as the message payload. Specifically, it provides an example of using a parse template to load an HTML template, insert employee data from a database query into the template using Mule expressions, and return the dynamic HTML as an HTTP response. The parse template allows pulling external files into flows, populating them with message data, and setting the results on the message.
![Examples
<html>
<body>
<table>
<tr>
<th>First Name</th>
<th>Last Name</th>
<th>Department</th>
<th>Job Title</th>
<th>Start Date</th>
<th>Employee Type</th>
</tr>
<tr>
<td>#[payload[0]['first_name']]</td>
<td>#[payload[0]['last_name']]</td>
<td>#[payload[0]['department']]</td>
<td>#[payload[0]['job_title']]</td>
<td>#[payload[0]['start_date']]</td>
<td>#[payload[0]['employee_type']]</td>](https://image.slidesharecdn.com/usingparsetemplatecomponent-160901210610/85/Using-parse-template-component-5-320.jpg)
Using parse template component
- 1. Using Parse Template Component - By Rahul Kumar
- 2. Parse Template Component Use a parse template to load the content of a flow-external file into a Mule flow, then use the file as a template into which you can insert data returned as the result of evaluated Mule expressions. Groovy also allows the developer to configure interceptors and alter the values or references of particular properties in a script. Interceptors are configured to provide additional services to a message as it flows through a component
- 3. Parse Template Component For example, perhaps you want a Mule flow to send an "order complete" HTTP response to a caller to indicate the new orderâs number and the number of widgets ordered (both values that you previously set on the Mule message as variables). You can use a parse template to load a file from an external location â a file which, behaving as a template, expects values for "order number" and "number of widgets". Then, the parse template extracts info from the Mule message variables to insert as values into the template and set the resulting contents as the message payload. In essence, a parse template pulls a template file into a Mule flow, fills in the blanks, then sets results on the message as the payload. In the example, after the parse template sets the payload on the message using the external file as a template, the Mule flow returns the HTTP response to confirm the order
- 4. Configuratio : Location : Define the location of the file that Mule uses as a template into which to insert values extracted from the message properties or variables.
- 5. Examples <html> <body> <table> <tr> <th>First Name</th> <th>Last Name</th> <th>Department</th> <th>Job Title</th> <th>Start Date</th> <th>Employee Type</th> </tr> <tr> <td>#[payload[0]['first_name']]</td> <td>#[payload[0]['last_name']]</td> <td>#[payload[0]['department']]</td> <td>#[payload[0]['job_title']]</td> <td>#[payload[0]['start_date']]</td> <td>#[payload[0]['employee_type']]</td>
- 6. Examples <flow name="exampleTemplateFlow1" > <http:listener config-ref="HTTP_Listener_Configuration" path="/" doc:name="HTTP" doc:description="Send GET request with a parameter, for example, http://localhost:8081/getEmployee?id=12345"/> <jdbc-ee:outbound-endpoint exchange-pattern="request-response" queryKey="getEmployeeById" queryTimeout="-1" connector-ref="Database" doc:name="Database" doc:description="Returns list of maps containing records; only the first one is required."/> <parse-template location="src/test/resources/responseHtml.template" doc:name="Parse Template"/> <set-property doc:name="Content Type" propertyName="Content-Type" value="text/html"/> </flow>
- 7. Examples To use the application in this example, you must send an HTTP request with a URL that includes an id query parameter, such as http://localhost:8081/getEmployee?id=12345. Dynamic HTML is returned according to the Mule expressions in the template
- 8. Thank You !!