Quick Start: Handling submitted forms using the Java API

The following code example handles a submitted form. If form data is submitted as XML data, then each field is retrieved. If form data is submitted as PDF data, then the submitted form is saved as a PDF file. (See Handling Submitted Forms.)

/*

 * This Java Quick Start uses the following JAR files

 * 1. adobe-forms-client.jar

 * 2. adobe-livecycle-client.jar

 * 3. adobe-usermanager-client.jar

 * 

 *  (Because Forms quick starts are implemented as Java servlets, it is 

 *  not necessary to include J2EE specific JAR files - the Java project

 *  that contains this quick start is exported as a WAR file which

 *  is deployed to the J2EE application server)

 *  

 *  These JAR files are located in the following path:

 * <install directory>/Adobe/LiveCycle8/LiveCycle_ES_SDK/client-libs

 * 

 * For complete details about the location of these JAR files, 

 * see "Including LiveCycle ES library files" in Programming with LiveCycle ES

 */

import java.io.IOException;

import javax.servlet.Servlet;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.adobe.livecycle.formsservice.client.*;

import java.util.*;

import java.io.DataInputStream;

import java.io.File;

import java.io.InputStream;

import java.io.PrintWriter;

import com.adobe.idp.Document;

import com.adobe.idp.dsc.clientsdk.ServiceClientFactory;

import com.adobe.idp.dsc.clientsdk.ServiceClientFactoryProperties;

//Import DOM libraries

import org.w3c.dom.NodeList;

import org.w3c.dom.Node;

import javax.xml.parsers.*;

public class HandleData 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{

			PrintWriter pp = resp.getWriter(); 	

			//Set connection properties required to invoke LiveCycle ES								

			Properties connectionProps = new Properties();

			connectionProps.setProperty(ServiceClientFactoryProperties.DSC_DEFAULT_EJB_ENDPOINT, "jnp://localhost:1099");

			connectionProps.setProperty(ServiceClientFactoryProperties.DSC_TRANSPORT_PROTOCOL,ServiceClientFactoryProperties.DSC_EJB_PROTOCOL);          

			connectionProps.setProperty(ServiceClientFactoryProperties.DSC_SERVER_TYPE, "JBoss");

			connectionProps.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_USERNAME, "administrator");

			connectionProps.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_PASSWORD, "password");

			//Create a ServiceClientFactory object

			ServiceClientFactory myFactory = ServiceClientFactory.createInstance(connectionProps);

			//Create a FormsServiceClient object

			FormsServiceClient formsClient = new FormsServiceClient(myFactory); 

			//Get Form data to pass to the processFormSubmission method

			Document formData = new Document(req.getInputStream()); 

			//Set run-time options

			 RenderOptionsSpec processSpec = new RenderOptionsSpec(); 

			 processSpec.setLocale("en_US");

			//Invoke the processFormSubmission method

			FormsResult formOut = formsClient.processFormSubmission(formData,

			"CONTENT_TYPE=application/pdf&CONTENT_TYPE=application/vnd.adobe.xdp+xml&CONTENT_TYPE=text/xml",

			"",

			processSpec);

			//Determine if the form contains file attachments

			//It is assumed that file attachments are JPG files

			List fileAttachments = formOut.getAttachments(); 

			//Create an Iterator object and iterate through 

			//the List object

			Iterator iter = fileAttachments.iterator(); 

			int i = 0 ; 

			while (iter.hasNext()) { 

				Document file = (Document)iter.next(); 

				file.copyToFile(new File("C:\\Adobe\\tempFile"+i+".jpg"));

				i++; 

			}

			//Get the processing state

			short processState = formOut.getAction();

			//Determine if the form data is ready to be processed

			//This code example checks only for submitted data (value is 0)

			if (processState == 0) 

			{

			  //Determine the content type of the data

			  String myContentType = formOut.getContentType();

			  if (myContentType.equals("application/vnd.adobe.xdp+xml"))	{

				//Get the form data

				Document formOutput = formOut.getOutputContent(); 

				InputStream formInputStream = new DataInputStream(formOutput.getInputStream()); 

				//Create DocumentBuilderFactory and DocumentBuilder objects

				DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

				DocumentBuilder builder = factory.newDocumentBuilder();

				org.w3c.dom.Document myDOM = builder.parse(formInputStream);

				//Call for each field in the form

				String Amount = getNodeText("mortgageAmount", myDOM);

				String myLastName =  getNodeText("lastName", myDOM); 

				String myFirstName = getNodeText("firstName", myDOM);

				//Write the form data to the web browser

				pp.println("<p> The form data is :<br><br>" +

						"<li> The mortgage amount is "+ Amount+"" +

						"<li> Last name is "+ myLastName+"" +

						"<li> First name is "+ myFirstName+"")	;

				}

			  else if (myContentType.equals("application/pdf")){

					//Get the form data

					Document myPDFfile = formOut.getOutputContent(); 

					//Create a PDF object

					File myPDFFile = new File("C:\\Adobe\\tempPDF.pdf");

					//Populate the PDF file

					myPDFfile.copyToFile(myPDFFile);					

				  pp.println("<p> The PDF file is saved as C:\\Adobe\\tempPDF.pdf") ; 

				}

			  }

			}

		catch (Exception e) {

			 e.printStackTrace();

		  }

	}

	//This method returns the value of the specified node

	private String getNodeText(String nodeName, org.w3c.dom.Document myDOM)

	{

	  //Get the XML node by name

	  NodeList oList = myDOM.getElementsByTagName(nodeName);

	  Node myNode = oList.item(0); 

	  NodeList oChildNodes = myNode.getChildNodes();

	 String sText = "";

	 for (int i = 0; i < oChildNodes.getLength(); i++)

	 {

		 Node oItem = oChildNodes.item(i);

		if (oItem.getNodeType() == Node.TEXT_NODE)

		 {

		   sText = sText.concat(oItem.getNodeValue());

		 }

	 }

	return sText;

	}

}

Note: When using a com.adobe.idp.Document object and an org.w3c.dom.Document in the same application, you must fully qualify org.w3c.dom.Document.

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