Objective:
Convert document from one format to other format.
Liferay have inbuilt support to convert various document from one format
to other formats with the help of Open Office service.
Download LiferayDocConverter portlet from following location
You can find source and war file
Note:
Portlet developed in Liferay 6.1GA2 EE version
If you want deploy in CE version you just do changes in liferay-plugin-package.properties
Liferay 6.1 EE version
name=LiferayDocConverter
module-group-id=liferay-ee
module-incremental-version=1
tags=
short-description=
change-log=
page-url=http://www.liferay.com
author=Liferay, Inc.
licenses=EE
portal-dependency-jars=\
jstl-api.jar,\
jstl-impl.jar
portal-dependency-tlds=c.tld
liferay-versions=6.1.20
|
Liferay 6.1 CE version
name = LiferayDocConverter
module-group-id=liferay
module-incremental-version=1
tags=
short-description=
change-log=
page-url=http://www.liferay.com
author=Liferay, Inc.
licenses=LGPL
portal-dependency-jars=\
jstl-api.jar,\
jstl-impl.jar
portal-dependency-tlds=c.tld
liferay-versions=6.1.1
|
Procedure for deploy
portlet:
You can use war file and directly place in your portal deploy folder and
test or you can also use source to deploy portlet.
Once portlet is deployed successfully you can see the portlet in sample
category name as Doc Converter.
Note:
Please read full article before test this portlet.
Here also some limitations means some of the conversion may not possible
any how mostly we can convert documents form one format to other format very
easy.
Internally liferay using JOD converter to do this conversion
process.JOD converter is java library have set of classes form which we can convert
documents.
Liferay already implemented their own java classes with the help of JOD converter
library so that we can use life ray classes to do this process.
Liferay provides one of the class called DocumentConversionUtil by using this we can convert documents from one format to other format.
The following are the sequence
of steps we need to do.
- Download open office and install in your machine
- Start open office service
- Configure open office in Liferay
- Use DocumentConversionUtil to convert documents
Download open office and
install in your machine
The following is direct down load link to download Open Office Apache_OpenOffice_4.0.1_Win32
The following is link for all platforms open office download
Once you downloaded open office then install in your machine and follow
the installation steps based on Operating System you have.
Note:
Please follow the installation process based on your OS
Start open office service
Windows:
One installation successfully done then we have to start open office
service from command prompt.
In windows open command prompt and go to installation location of open
office and then go to directory called program.
Go to the folder where it was installed (for example, C:\Program
Files\OpenOffice.org\program) and start OpenOffice service with the following
Command:
soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard
|
Linux:
Goto
Openoffice installing path.From command prompt type this line
"cd
/usr/lib/openoffice/program"
Command:
sudo soffice
"-accept=socket,host=localhost,port=8100;urp;StarOffice.ServiceManager"
-nologo -headless –nofirststartwizard"
|
Go through following link for complete details
The following is screen
shot to run open office service in Windows.
Configure Open Office in
Liferay
Once service is stared then we need to configure
open office in liferay from administration screen,
Login as admin and go control panel from
that go to server administration which is in left
side server section.
Now click on External Service and enable
open office service
Note:
Here open office
service port by default is 8100
If you change the port number at time of open office
installation, then you need to change in liferay configuration too.
The following is liferay
open office configuration screen
Use DocumentConversionUtil to convert documents
Once we did all above then we can start convert
documents.
So now we can use DocumentConversionUtil to convert documents
The following is method to convert document from one type to other type
public static File
convert(
String id, InputStream
inputStream, String sourceExtension,
String targetExtension)
|
The following is complete
code to convert file and down load file
public class DocConverterAction extends
MVCPortlet {
@Override
public
void serveResource(
ResourceRequest
resourceRequest, ResourceResponse
resourceResponse)
throws
IOException, PortletException {
UploadPortletRequest uploadPortletRequest
=PortalUtil.getUploadPortletRequest(resourceRequest);
String
destinationExtension=ParamUtil.getString(uploadPortletRequest,"destinationExtension");
File sourceFile =
uploadPortletRequest.getFile("sourceFile");
String extension = "";
String fileName=sourceFile.getName();
int i =fileName.lastIndexOf('.');
Timestamp stamp = new
Timestamp(System.currentTimeMillis());
Date date = new
Date(stamp.getTime());
System.out.println("=="+date);
File destinationFile=null;
if (i > 0) {
extension = fileName.substring(i+1);
}
InputStream inputStream = new
FileInputStream(sourceFile);
HttpServletResponse httpResponse =
PortalUtil.getHttpServletResponse(resourceResponse);
HttpServletRequest httpRequest = PortalUtil.getHttpServletRequest(resourceRequest);
try {
destinationFile=DocumentConversionUtil.convert(String.valueOf(stamp.getTime()),
inputStream,extension,destinationExtension);
InputStream is = new
BufferedInputStream(new FileInputStream(destinationFile));
ServletResponseUtil.sendFile(httpRequest,httpResponse
,destinationFile.getName(), is,getCotentType(destinationExtension));
}
catch (Exception e) {
if(e
instanceof SystemException)
System.out.println("555555555555555555"+e.getMessage());
e.printStackTrace();
}
}
}
|
Possible conversions
Important points
- Liferay have in build support to convert document from one format other with help of Open office service.
- To enable open office service in liferay we have to install open office and start open office service then we need to configure in liferay.
- Once we configuration done then we can implement in plug-in portlet where ever you required,
- Once we configure this we can also download journal content with different formats and also in document media portlet you can see different conversion features.
Portlet screen
Reference links
Author
Meera Prince
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