Conversion samples

Basics

Suggested code sample

First, you must create the webservice object:

OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

Then you should log in using the method “login”. You can access the “login” method from the webservice object “ws” as shown below:

ws.login(user, password);

Caution

Once you are logged in with the webservices, the session is kept in the webservice object. Then you can use the other API methods.

At this point you can use all the Conversion methods from “conversion” class as shown below:

ws.conversion.doc2pdf(is, "test.docx");

Methods

doc2pdf

Description:

Method	Return values	Description
doc2pdf(InputStream is, String fileName)	InputStream	Retrieve the uploaded document converted to PDF format.

Caution

The OpenOffice service must be enabled on the OpenKM server to get it running.

• The parameter fileName is the document file name. The application uses this parameter to identify the document MIME TYPE by its extension.

Example:

package com.openkm;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.impl.OKMWebservices;

public class Test {

    public static void main(String[] args) {
        String host = "http://localhost:8080/openkm";
        String user = "okmAdmin";
        String password = "admin";
        OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

        try {
            ws.login(user, password);
            InputStream is = new FileInputStream("/home/openkm/test.docx");
            FileOutputStream fos = new FileOutputStream("/home/openkm/out.pdf");
            InputStream convertedStream = ws.conversion.doc2pdf(is, "test.docx");
            IOUtils.copy(convertedStream, fos);
            is.close();
            convertedStream.close();
            fos.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

imageConvert

Description:

Method	Return values	Description
imageConvert(InputStream is, String fileName, String params, String dstMimeType)	InputStream	Retrieve the uploaded image with transformation.

Tip

Using this method, you are actually executing the ImageMagick convert tool on the server side.

You can set many parameters (transformations) in the params variable. Take a look at ImageMagick convert tool to get a complete list of them.

Caution

The image convert tool must be enabled on the OpenKM server to get it running.

When the params value is not empty, it must always end with the sequence “${fileIn} ${fileOut}”.

Ensure there is only a single whitespace as a separator between two parameters.

When building your integrations, we suggest installing ImageMagick software locally, and checking your image transformations first from your command line.

• The variable fileName is the document file name. Application uses this variable to identify by document extension the document MIME TYPE.
• The parameter dstMimeType is the expected document MIME TYPE result.

Example:

package com.openkm;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.impl.OKMWebservices;

public class Test {

    public static void main(String[] args) {
        String host = "http://localhost:8080/openkm";
        String user = "okmAdmin";
        String password = "admin";
        OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

        try {
            ws.login(user, password);
            InputStream is = new FileInputStream("/home/openkm/test.png");
            FileOutputStream fos = new FileOutputStream("/home/openkm/out.jpg");
            InputStream convertedStream = ws.conversion.imageConvert(is, "test.png", "-resize 50% ${fileIn} ${fileOut}", "image/jpeg");
            IOUtils.copy(convertedStream, fos);
            is.close();
            convertedStream.close();
            fos.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

html2pdf

Description:

Method	Return values	Description
html2pdf(String url)	InputStream	Retrieve the PDF of a URL.

Caution

The HTML to PDF conversion tool must be enabled on the OpenKM server to get it running.

Example: 

package com.openkm;

import java.io.FileOutputStream;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.impl.OKMWebservices;

public class Test {

    public static void main(String[] args) {
        String host = "http://localhost:8080/openkm";
        String user = "okmAdmin";
        String password = "admin";
        OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

        try {
            ws.login(user, password);
            FileOutputStream fos = new FileOutputStream("/home/openkm/out.pdf");
            InputStream is = ws.conversion.html2pdf("https://www.openkm.com/es/");
            IOUtils.copy(is, fos);
            is.close();
            fos.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

doc2txt

Description:

Method	Return values	Description
doc2txt(InputStream is, String fileName)	String	Extracts the text from the uploaded document.

Caution

A Text Extractor must be enabled for the document MIME TYPE on the OpenKM server to get it running.

Example: 

package com.openkm;

import java.io.FileInputStream;
import java.io.InputStream;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.impl.OKMWebservices;

public class Test {

    public static void main(String[] args) {
        String host = "http://localhost:8080/openkm";
        String user = "okmAdmin";
        String password = "admin";
        OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

        try {
            ws.login(user, password);
            InputStream is = new FileInputStream("/home/openkm/test.docx");
            System.out.println(ws.conversion.doc2txt(is, "test.docx"));
            is.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

img2txt

Description:

Method	Return values	Description
img2txt(InputStream is, String fileName)	String	Extracts the text from the uploaded image.

Caution

The OCR engine must be enabled on the OpenKM server to get it running.

Example: 

package com.openkm;

import java.io.FileInputStream;
import java.io.InputStream;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.impl.OKMWebservices;

public class Test {

    public static void main(String[] args) {
        String host = "http://localhost:8080/openkm";
        String user = "okmAdmin";
        String password = "admin";
        OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

        try {
            ws.login(user, password);
            InputStream is = new FileInputStream("/home/openkm/test.png");
            System.out.println(ws.conversion.img2txt(is, "test.png"));
            is.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

barcode2txt

Description:

Method	Return values	Description
barcode2txt(InputStream is, String fileName)	String	Extracts the barcode text from the uploaded image.

Caution

The Bar Code tool must be enabled on the OpenKM server to get it running.

Example: 

package com.openkm;

import java.io.FileInputStream;
import java.io.InputStream;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.impl.OKMWebservices;

public class Test {

    public static void main(String[] args) {
        String host = "http://localhost:8080/openkm";
        String user = "okmAdmin";
        String password = "admin";
        OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

        try {
            ws.login(user, password);
            InputStream is = new FileInputStream("/home/openkm/test.png");
            System.out.println(ws.conversion.barcode2txt(is, "test.png"));
            is.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}