Difference between revisions of "Stardust/Knowledge Base/Java API/Attaching Documents"

Revision as of 03:42, 6 December 2011

Attaching documents to IPP Process without using Context Portal

 There may be requirements where one needs to attach documents from the activity screen instead of launching Context portal:
• User may like to attach the document while filling in the information from the same activity screen.
• One may need to attach reports, which they download from some http location.

Attaching a document from an interactive application activity, e.g. JSF activity:

1. Edit the xhtml file and add following entry
<trh:rowLayout>
<tr:inputFile label="Attach Document :" value="#{SwitchDetailsDataEntryBean.file}" />
</trh:rowLayout>
This entry in xhtml will create a control with “Attach Document” as label, an edit control next to this that will display the path of the browsed file and a ‘Browse’ button, that opens up Open Windows Dialog box.

2. In your backing bean class add the following code:

package com.sungard.iworks.web.jsf.beans.iworkscompass.switchrequest;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.myfaces.trinidad.context.RequestContext;
import org.apache.myfaces.trinidad.model.UploadedFile;
import ag.carnot.web.jsf.common.ManagedBeanUtils;
import ag.carnot.web.jsf.common.beans.SessionContext;
import ag.carnot.web.jsf.common.structureddata.ComplexTypeWrapper;
import ag.carnot.web.jsf.processportal.beans.ActivityInstanceDialogBean;
import ag.carnot.workflow.runtime.DmsUtils;
import ag.carnot.workflow.runtime.Document;
import ag.carnot.workflow.runtime.DocumentInfo;
import ag.carnot.workflow.runtime.DocumentManagementService;
import ag.carnot.workflow.runtime.Folder;
import ag.carnot.workflow.runtime.ProcessInstance;

public class SwitchDetailsDataEntryBean {
private UploadedFile file; 
public UploadedFile getFile() {
return file;
}
public void setFile(UploadedFile file) {
this.file = file;
}
public SwitchDetailsDataEntryBean(){
super();
RequestContext requestContext = RequestContext.getCurrentInstance();
requestContext.getPageFlowScope().put("carnotActivityUsesUpload", new Boolean(true));
} 
public List complete(){
System.out.println("Complete method Started");
if(file != null){
try{
SessionContext sessionContext = SessionContext.findSessionContext(); 
DocumentManagementService documentManagementService = sessionContext.getServiceFactory().
getDocumentManagementService();
String fileName = this.getFile().getFilename();
DocumentInfo documentInfo = DmsUtils.createDocumentInfo(fileName);
// documentInfo.setProperties((Map)
// this.documentPropertiesWrapper.getComplexType());
System.out.println("File Type : " + file.getContentType());
documentInfo.setContentType(file.getContentType()); 
ByteArrayOutputStream out = new ByteArrayOutputStream(); 
try {
InputStream in = this.getFile().getInputStream();
int b;
while ((b = in.read()) != -1){
out.write(b);
}
out.close();
in.close();
}
catch (Exception e) {
e.printStackTrace();
} 
byte[] documentContent = out.toByteArray(); 
System.out.println("File length: " + documentContent.length); 
Document scannedSwitchDocument = documentManagementService.createDocument("/", documentInfo,
documentContent, null);
attachments.add(scannedSwitchDocument);
System.out.println("Document created."); 
return attachments;
}
catch(Exception e){
System.out.println("in catch");
e.printStackTrace();}
} 
return null;
} 
}

3. Add ‘Process Attachments’ as an OUT Data to that particular activity in the model.

Attaching a document available at some http location:

1. Have an Application activity in your model, whose service method should look like as below:

package com.sungard.iworks.web.jsf.beans.iworkscompass.switchrequest; 
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List; 
import ag.carnot.web.jsf.common.beans.SessionContext;
import ag.carnot.workflow.runtime.DmsUtils;
import ag.carnot.workflow.runtime.Document;
import ag.carnot.workflow.runtime.DocumentInfo;
import ag.carnot.workflow.runtime.DocumentManagementService;

public class AttachReportToProcess{ 
public List attachReport(String repFileName, List documents) {
InputStream is = null;
ByteArrayOutputStream out = new ByteArrayOutputStream();
try{ 
SessionContext sessionContext = SessionContext.findSessionContext(); 
DocumentManagementService documentManagementService = sessionContext.getServiceFactory().
getDocumentManagementService();
DocumentInfo documentInfo = DmsUtils.createDocumentInfo(repFileName); 
System.out.println("Downloaded Started.");
String fileURL ="http://iwks-nat-frmsvr:7778/reportspdf/" + repFileName;
URL fileUrl = new URL(fileURL);
documentInfo.setContentType("application/pdf");
//os = new BufferedOutputStream(new FileOutputStream("c:\\src\\A00004056238.pdf"));
// openConnection method on a URL.
URLConnection URLConn = fileUrl.openConnection();
is = URLConn.getInputStream(); 
//InputStream in = this.getFile().getInputStream();
int b;
while ((b = is.read()) != -1){
out.write(b);
}
out.close();
is.close(); 
byte[] documentContent = out.toByteArray(); 
System.out.println("File length: " + documentContent.length); 
Document scannedSwitchDocument = documentManagementService.createDocument("/", documentInfo, 
documentContent, null);
List attachments = new ArrayList();
List paths = new ArrayList ();
paths.add("/");
System.out.println("documents : "+documents);
//ArrayList existingAttachments = new ArrayList (documentManagementService.getDocuments(paths));
attachments.addAll(documents);
attachments.add(scannedSwitchDocument);
return attachments; 
}
catch (Exception e) {
e.printStackTrace();
}
return null;
}

}