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The following code example processes a form that contains
a calculation script and writes the results back to the client web
browser. (See Calculating Form Data.)
/*
* Ensure that you create the Java proxy classes to use
* base64 encoding. This is required to populate a BLOB
* object with data or retrieve data from a BLOB object.
*
* For information, see "Creating Java proxy classes using Apache Axis"
* in Programming with LiveCycle.
*/
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.adobe.idp.services.BLOB;
import com.adobe.idp.services.FormsResult;
import com.adobe.idp.services.FormsService;
import com.adobe.idp.services.FormsServiceServiceLocator;
import com.adobe.idp.services.RenderOptionsSpec;
import com.adobe.idp.services.holders.BLOBHolder;
import com.adobe.idp.services.holders.FormsResultHolder;
import com.adobe.idp.services.holders.MyArrayOf_xsd_anyTypeHolder;
public class CalculateDataWS extends HttpServlet implements Servlet {
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
doPost(req,resp);
}
public void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
try{
//Create a FormsService object
com.adobe.idp.services.FormsServiceServiceLocator sl = new FormsServiceServiceLocator();
FormsService formsOb = sl.getFormsService();
((javax.xml.rpc.Stub)formsOb)._setProperty(javax.xml.rpc.Stub.
USERNAME_PROPERTY, "administrator");
((javax.xml.rpc.Stub)formsOb)._setProperty(javax.xml.rpc.Stub.
PASSWORD_PROPERTY, "password");
//Create a BLOB object to pass
//to processFormSubmission
BLOB inForm = new BLOB();
//Get the input stream passed to the servlet and copy
//its contents into a byte array
int readBytes = -1;
int bufLength = req.getContentLength();
InputStream input = req.getInputStream();
byte[] buffer = new byte[bufLength];
ByteArrayOutputStream output = new ByteArrayOutputStream(bufLength);
while((readBytes = input.read(buffer, 0, bufLength)) != -1) {
output.write(buffer, 0, readBytes);
}
byte[] finalOutput = output.toByteArray();
//Populate the BLOB object
inForm.setBinaryData(finalOutput);
//Set run-time options
RenderOptionsSpec processSpec = new RenderOptionsSpec();
processSpec.setLocale("en_US");
//Specify user agent values
String agent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1;.NET CLR 1.1.4322)";
//Specify env values
String envValues = "CONTENT_TYPE=application/pdf&CONTENT_TYPE=application/vnd.adobe.xdp+xml";
//Create class holders to pass to ProcessFormSubmission
BLOBHolder outProcessFormSubmissionResultDoc = new BLOBHolder();
javax.xml.rpc.holders.StringHolder clickedButton = new javax.xml.rpc.holders.StringHolder();
BLOBHolder outXML = new BLOBHolder();
BLOBHolder validationErrorsList = new BLOBHolder();
javax.xml.rpc.holders.ShortHolder action = new javax.xml.rpc.holders.ShortHolder();
MyArrayOf_xsd_anyTypeHolder attachments = new MyArrayOf_xsd_anyTypeHolder();
FormsResultHolder processFormSubmissionResult = new FormsResultHolder();
//Invoke the processFormSubmission method
formsOb.processFormSubmission(
inForm,
envValues ,
agent,
processSpec,
outProcessFormSubmissionResultDoc,
clickedButton,
outXML,
validationErrorsList,
action,
attachments,
processFormSubmissionResult);
//Get the FormResult from the FormsResultHolder
FormsResult formResult = processFormSubmissionResult.value ;
//Get the processing state
short processState = formResult.getAction();
//Determine if the form data is calculated
if (processState == 1)
{
//Get the BLOB object that represents the processed form
BLOB formData= formResult.getOutputContent();
//Get the content type of the response and
//set the HttpServletResponse object's content type
String contentType = formData.getContentType();
resp.setContentType(contentType);
//Create a ServletOutputStream object
ServletOutputStream oOutput = resp.getOutputStream();
//Create a byte array that stores form data in the BLOB object
byte[] cContent = formData.getBinaryData();
//Write a byte stream back to the web browser.
//Pass the byte array
oOutput.write(cContent);
}
}catch (Exception e) {
System.out.println("The following error occurred during this operation " +e.getMessage());
}
}
}
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