1. Home
  2. SDK for Java 2.0-ce
  3. Node samples
  1.  

Node samples

Basics

Example of uuid:

  • Using UUID -> "373bcdd0-c082-4e7b-addd-e10ef813946e";

Suggested code sample

First, you must create the webservice object:

OKMWebservices ws = OKMWebservicesFactory.getInstance(host);

Then should login using the method "login". You can access the "login" method from webservice object "ws" as is shown below:

ws.login(user, password);

Once you are logged with the webservices the session is keep in the webservice Object. Then you can use the other API method

At this point you can use all the Node methods from "node" class as is shown below:

ws.node.getNodeByUuid("29a22996-0e3b-421e-8759-c24ea41c1ebb")

Methods

getNodeByUuid

Description:

MethodReturn valuesDescription

getNodeByUuid(String uuid)

Node

Get a node by uuid.

Example:

package com.openkm;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.Node;
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);
            Node node = ws.node.getNodeByUuid("29a22996-0e3b-421e-8759-c24ea41c1ebb");
            System.out.println(node);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

getVersionHistory

Description:

MethodReturn valuesDescription

getVersionHistory(String uuid)

List<Version>

Returns a list of the version history of a document.

Example:

package com.openkm;

import java.util.List;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.Version;
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);
            List<Version> versions = ws.node.getVersionHistory("3767deb4-21e7-4272-82be-fece5384fbab");
            for (Version version : versions) {
                System.out.println(version);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

restoreVersion

Description:

MethodReturn valuesDescription

restoreVersion(String uuid, String versionName)

void

Restore a document to a specific version.

Example:

package com.openkm;

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);
            ws.node.restoreVersion("3767deb4-21e7-4272-82be-fece5384fbab", "1.2");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

renameVersion

Description:

MethodReturn valuesDescription

renameVersion(String uuid, String versionName, String newName)

void

Rename a specific version.

Example:

package com.openkm;

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);
            ws.node.renameVersion("34e657ee-0c29-45d8-9c07-c09bbc22076c", "1.3","1.4");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

deleteVersion

Description:

MethodReturn valuesDescription

deleteVersion(String uuid, String versionName)

void

Delete a specific version.

Example:

package com.openkm;

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);
            ws.node.deleteVersion("5aab162d-df4f-4392-96c9-8fc1607e3903", "1.1");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

purgeVersionHistory

Description:

MethodReturn valuesDescription

purgeVersionHistory(String uuid)

void

Purge version history of a document.

Example:

package com.openkm;

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);
            ws.node.purgeVersionHistory("3767deb4-21e7-4272-82be-fece5384fbab");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

getChildrenNodesPaginated

Description:

MethodReturn valuesDescription

getChildrenNodesPaginated(String uuid, int offset, int limit, String filter, String orderByField, boolean orderAsc, List<Integer> filteredTypes)

SimpleNodeBaseList

Get children nodes paginated.

Available filteredTypes values:

SimpleNodeBase.TYPE_FOLDER
SimpleNodeBase.TYPE_DOCUMENT
SimpleNodeBase.TYPE_MAIL
SimpleNodeBase.TYPE_RECORD

You should do:

List<Integer> filteredTypes = new ArrayList<>();
filteredTypes.add(SimpleNodeBase.TYPE_FOLDER);
filteredTypes.add(SimpleNodeBase.TYPE_DOCUMENT);

The parameter "limit" and "offset" allows you to retrieve just a portion of the results of a query.

  • The parameter "limit" is used to limit the number of results returned.
  • The parameter "offset" says to skip that many results before the beginning to return results.

For example, if your query has 1000 results, but you only want to return the first 10, you should use these values:

  • limit=10
  • offset=0

Now suppose you want to show the results from 11-20, you should use these values:

  • limit=10
  • offset=10

Example:

package com.openkm;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.NodesPaginationInfo;
import com.openkm.sdk4j.bean.SimpleNodeBase;
import com.openkm.sdk4j.bean.SimpleNodeBaseList;
import com.openkm.sdk4j.impl.OKMWebservices;

import java.util.ArrayList;
import java.util.List;

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);
            List<Integer> filteredTypes = new ArrayList<>();
            filteredTypes.add(SimpleNodeBase.TYPE_FOLDER);
            filteredTypes.add(SimpleNodeBase.TYPE_DOCUMENT);
            // Folder UUID or Record UUID
            String uuid = "39479efe-de5e-468e-91a7-24d2aa3f8837";
            SimpleNodeBaseList listNode = ws.node.getChildrenNodesPaginated(uuid, 0, 10, "", NodesPaginationInfo.ORDER_BY_NAME, true,
                    filteredTypes);
            System.out.println("Filtered Elements: " + listNode.getFilteredElements());
            System.out.println("Total Elements: " + listNode.getTotalElements());
            for (SimpleNodeBase simpleNodeBase : listNode.getNodes()) {
                System.out.println(simpleNodeBase.getPath());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

getChildrenNodesByCategoryPaginated

Description:

MethodReturn valuesDescription

getChildrenNodesByCategoryPaginated(String uuid, int offset, int limit, String filter, String orderByField, boolean orderAsc, List<Integer> filteredTypes)

SimpleNodeBaseList

Get children nodes by category paginated.

The parameter "limit" and "offset" allows you to retrieve just a portion of the results of a query.

  • The parameter "limit" is used to limit the number of results returned.
  • The parameter "offset" says to skip that many results before the beginning to return results.

For example, if your query has 1000 results, but you only want to return the first 10, you should use these values:

  • limit=10
  • offset=0

Now suppose you want to show the results from 11-20, you should use these values:

  • limit=10
  • offset=10

Example:

package com.openkm;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.NodesPaginationInfo;
import com.openkm.sdk4j.bean.SimpleNodeBase;
import com.openkm.sdk4j.bean.SimpleNodeBaseList;
import com.openkm.sdk4j.impl.OKMWebservices;

import java.util.ArrayList;
import java.util.List;

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);
            List<Integer> filteredTypes = new ArrayList<>();
            filteredTypes.add(1);
            // Folder UUID or Record UUID
            String uuid = "39479efe-de5e-468e-91a7-24d2aa3f8837";
            SimpleNodeBaseList listNode = ws.node.getChildrenNodesByCategoryPaginated(uuid, 0, 10, "", NodesPaginationInfo.ORDER_BY_NAME, true,
                    filteredTypes);
            System.out.println("Filtered Elements: " + listNode.getFilteredElements());
            System.out.println("Total Elements: " + listNode.getTotalElements());
            for (SimpleNodeBase simpleNodeBase : listNode.getNodes()) {
                System.out.println(simpleNodeBase.getPath());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

getBreadcrumb

Description:

MethodReturn valuesDescription

getBreadcrumb(String uuid)

List<BreadCrumbItem>

Get breadcrumb.

Example:

package com.openkm;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.BreadCrumbItem;
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);
            List<BreadCrumbItem> list = ws.node.getBreadcrumb("39479efe-de5e-468e-91a7-24d2aa3f8837");
            for (BreadCrumbItem item : list) {
                System.out.println(item.getPath());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

subscribe

Description:

MethodReturn valuesDescription

subscribe(String uuid)

void

Adds a subscription to a node.

Example:

package com.openkm;

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);
            ws.node.subscribe("39479efe-de5e-468e-91a7-24d2aa3f8837");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

unsubscribe

Description:

MethodReturn valuesDescription

unsubscribe(String uuid)

void

Delete a subscription to a node.

Example:

package com.openkm;

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);
            ws.node.unsubscribe("39479efe-de5e-468e-91a7-24d2aa3f8837");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

importZip

Description:

MethodReturn valuesDescription

importZip(String uuid, InputStream is)

void

Import a zip file.

Example:

package com.openkm;

import java.io.FileInputStream;
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/gnujavasergio/okm/import.zip");
            ws.node.importZip("212e7c1f-443d-4aac-a12c-0b818ca03419", is);
            IOUtils.closeQuietly(is);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

unZip

Description:

MethodReturn valuesDescription

unZip(String uuid, String dstId)

void

Unzip file.

Example:

package com.openkm;

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);
            String uuid = "82555dd1-bcc2-4e64-81cb-5f7c2b0d7801"; // zip File
            String dstId = "70ec54af-76ad-4d02-b9c8-8c94c3b6ffc7"; // destination uuid
            ws.node.unZip(uuid, dstId);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

exportZip

Description:

MethodReturn valuesDescription

exportZip(List<String> uuids, boolean withPath, boolean background)

InputStream

Export as a zip file.

Example:

package com.openkm;

import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

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);
            List<String> uuids = new ArrayList<>();
            uuids.add("0f6463f3-4d36-4091-b518-4fe7c353ee70");
            uuids.add("d386cff8-1d4d-472f-9c6d-f21955ec499a");

            OutputStream fos = new FileOutputStream("/home/openkm/export.zip");

            InputStream is = ws.node.exportZip(uuids, true, true);
            IOUtils.copy(is, fos);
            IOUtils.closeQuietly(is);
            IOUtils.closeQuietly(fos);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

getNodesFiltered

Description:

MethodReturn valuesDescription

getNodesFiltered(List<String> uuids)

List<Node>

Return a list of nodes.

Example:

package com.openkm;

import java.util.ArrayList;
import java.util.List;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.Node;
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);
            List<String> uuids = new ArrayList<>();
            uuids.add("0f6463f3-4d36-4091-b518-4fe7c353ee70");
            uuids.add("d386cff8-1d4d-472f-9c6d-f21955ec499a");

            List<Node> nodes = ws.node.getNodesFiltered(uuids);
            for (Node node : nodes) {
                System.out.println(node);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

evaluateDownloadZip

Description:

MethodReturn valuesDescription

evaluateDownloadZip(List<String> uuids)

ZipDownloadEvaluationResult

Return a ZipDownloadEvaluationResult object.

Example:

package com.openkm;

import java.util.ArrayList;
import java.util.List;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.ZipDownloadEvaluationResult;
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);
            List<String> uuids = new ArrayList<>();
            uuids.add("0f6463f3-4d36-4091-b518-4fe7c353ee70");
            uuids.add("d386cff8-1d4d-472f-9c6d-f21955ec499a");

            ZipDownloadEvaluationResult result = ws.node.evaluateDownloadZip(uuids);
            System.out.println(result);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

restore

Description:

MethodReturn valuesDescription

restore(String uuid)

Node

Restore a node

Example:

package com.openkm;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.Node;
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);
            Node node = ws.node.restore("0f6463f3-4d36-4091-b518-4fe7c353ee70");
            System.out.println(node);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

hasNodesLockedByOtherUser

Description:

MethodReturn valuesDescription

hasNodesLockedByOtherUser(String uuid)

booelan

If the node is blocked by other users

Example:

package com.openkm;

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);
            if(ws.node.hasNodesLockedByOtherUser("0f6463f3-4d36-4091-b518-4fe7c353ee70")) {
            	System.out.println("Is blocked");
            }                        
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

lock

Description:

MethodReturn valuesDescription

lock(String uuid)

LockInfo

Locks a node and returns an object with the Lock information.

Only the user who locked the node is allowed to unlock.

A locked node cannot be modified by other users.

Example:

package com.openkm;

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);
            ws.node.lock("1ec49da9-1746-4875-ae32-9281d7303a62");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

forceLock

Description:

MethodReturn valuesDescription

forceLock(String uuid)

LockInfo

Locks a node and returns an object with the Lock information.

This method allows to lock any node.

This action can only be done by a super user ( user with ROLE_ADMIN ).

In case exist a previous lock it will be replaced by a new one. When parent is locked you must apply the lock from parent.

Example:

package com.openkm;

import com.openkm.sdk4j.OKMWebservicesFactory;
import com.openkm.sdk4j.bean.LockInfo;
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);            
            LockInfo lockInfo = ws.node.forceLock("1ec49da9-1746-4875-ae32-9281d7303a62");
            System.out.println("Author:" + lockInfo.getOwner());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

unlock

Description:

MethodReturn valuesDescription

unlock(String uuid)

void

Unlocks a locked node.

Only the user who locked the node is allowed to unlock.

Example:

package com.openkm;

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);
            ws.node.unlock("1ec49da9-1746-4875-ae32-9281d7303a62");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

forceUnlock

Description:

MethodReturn valuesDescription

forceUnlock(String uuid)

void

Unlocks a locked node.

This method allows to unlock any locked node.

It is not mandatory execute this action by the same user who previously executed the checkout lock action.

This action can only be done by a super user ( user with ROLE_ADMIN ).

Example:

package com.openkm;

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);
            ws.node.forceUnlock("1ec49da9-1746-4875-ae32-9281d7303a62");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

isLocked

Description:

MethodReturn valuesDescription

isLocked(String uuid)

Boolean

Returns a boolean that indicates if the node is locked or not.

Example:

package com.openkm;

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);
            System.out.println("Is node locked:" + ws.node.isLocked("1ec49da9-1746-4875-ae32-9281d7303a62"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

getLockInfo

Description:

MethodReturn valuesDescription

getLockInfo(String uuid)

LockInfo

Returns an object with the Lock information

Example:

package com.openkm;

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);
            System.out.println(ws.node.getLockInfo("1ec49da9-1746-4875-ae32-9281d7303a62"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

setComment

Description:

MethodReturn valuesDescription

setComment(String uuid, String versionName, String comment)

void

Sets the comment for a specific node version.

Example:

package com.openkm;

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);
            ws.node.setComment("1ec49da9-1746-4875-ae32-9281d7303a62", "1.14", "Update comment");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}