Creating your own Automation Action

You can create your own Automation Action.

Conditions:

• The new Automation Action class must implement the "Action" interface.
• The new Automation Action class must be declared in the package "com.openkm.plugin.automation.action".
• The new Automation Action class must be annotated with "@PluginImplementation".
• The new Automation Action class must extend "BasePlugin".

Automation Action interface:

package com.openkm.plugin.automation;

import com.openkm.db.bean.AutomationRule.EnumEvents;
import net.xeoh.plugins.base.Plugin;

import java.util.List;
import java.util.Map;

public interface Action extends Plugin {

    void executePre(Map<String, Object> env, Object... params) throws AutomationException;

    void executePost(Map<String, Object> env, Object... params) throws AutomationException;

    String getName();

    String getParamType00();

    String getParamSrc00();

    String getParamDesc00();

    String getParamType01();

    String getParamSrc01();

    String getParamDesc01();

    String getParamType02();

    String getParamSrc02();

    String getParamDesc02();

    List<EnumEvents> getValidEventsAtPre();

    List<EnumEvents> getValidEventsAtPost();
}

The new class must be loaded into the package com.openkm.plugin.automation.action because the application plugin system will try to load it from there.

Methods description

Understanding env variable

The env variable is present in the isValid method; it is a Map of values injected by automation. These map values provide information about the node involved in the event and other related information.

 For example, to retrieve the node that caused the event.

NodeBase node = automationUtils.getNodeToEvaluate(env);

Understanding params variable

The params variable is present in the isValid method; it is an array of Objects. This array is filled by the Automation event based on the number of parameters set on the Action class (which will not be the Automation.PARAM_TYPE_EMPTY value).

The array can have several Objects of distinct types; it is necessary to retrieve the parameters as the correct object types.

For example, to retrieve the first parameter as a String object.

String param00 = AutomationUtils.getString(0, params);

Description of available ParamType values:

Description of available Src values:

Detecting recursion

When you create your automation actions, you should consider recursion. For example, if your action is linked to the "CREATE_DOCUMENT" event and the action creates a new document, you can enter an infinite loop. For this reason, when you create a new Action you should take special care with these cases.

Code to detect recursive calls caused by automation action classes:

if (StackTraceUtils.isCallingMe(this.getClass().getName())) {
  log.info("Recursion detected");
  return;
} 

Example

AddKeyword class:

package com.openkm.plugin.automation.action;

import com.openkm.core.Config;
import com.openkm.db.bean.Automation;
import com.openkm.db.bean.AutomationRule.EnumEvents;
import com.openkm.db.service.NodeBaseSrv;
import com.openkm.plugin.BasePlugin;
import com.openkm.plugin.automation.Action;
import com.openkm.plugin.automation.AutomationException;
import com.openkm.plugin.automation.AutomationUtils;
import net.xeoh.plugins.base.annotations.PluginImplementation;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 * AddKeyword
 */
@PluginImplementation
public class AddKeyword extends BasePlugin implements Action {

    private static ArrayList<EnumEvents> EVENTS_AT_PRE = new ArrayList<>();

    private static ArrayList<EnumEvents> EVENTS_AT_POST
            = Stream.of(EnumEvents.EVENT_DOCUMENT_CREATE, EnumEvents.EVENT_DOCUMENT_UPDATE, EnumEvents.EVENT_DOCUMENT_DELETE,
                    EnumEvents.EVENT_DOCUMENT_RENAME, EnumEvents.EVENT_DOCUMENT_MOVE, EnumEvents.EVENT_DOCUMENT_RESTORE_VERSION,
                    EnumEvents.EVENT_DOCUMENT_DOWNLOAD_FROM_UI, EnumEvents.EVENT_DOCUMENT_DOWNLOAD_FROM_UI_FOR_PREVIEW,
                    EnumEvents.EVENT_DOCUMENT_PRINT, EnumEvents.EVENT_DOCUMENT_STAMP, EnumEvents.EVENT_RECORD_CREATE,
                    EnumEvents.EVENT_RECORD_DELETE, EnumEvents.EVENT_FOLDER_CREATE, EnumEvents.EVENT_FOLDER_DELETE,
                    EnumEvents.EVENT_MAIL_CREATE, EnumEvents.EVENT_MAIL_DOWNLOAD_FROM_UI, EnumEvents.EVENT_LINK_CREATE,
                    EnumEvents.EVENT_TEXT_EXTRACTOR, EnumEvents.EVENT_PROPERTY_GROUP_ADD, EnumEvents.EVENT_PROPERTY_GROUP_SET,
                    EnumEvents.EVENT_PROPERTY_GROUP_REMOVE, EnumEvents.EVENT_MAIL_IMPORT_ATTACHMENTS
            ).collect(Collectors.toCollection(ArrayList::new));

    @Autowired
    private NodeBaseSrv nodeBaseSrv;

    @Autowired
    private AutomationUtils automationUtils;

    @Override
    public void executePre(Map<String, Object> env, Object... params) throws AutomationException {
    }

    @Override
    public void executePost(Map<String, Object> env, Object... params) throws AutomationException {
        try {
            String keyword = automationUtils.getString(0, params);
            String uuid = automationUtils.getNodeToEvaluate(env).getUuid();

            if (uuid != null && keyword != null && !keyword.isEmpty()) {
                if (Config.SYSTEM_KEYWORD_LOWERCASE) {
                    keyword = keyword.toLowerCase();
                }

                nodeBaseSrv.addKeyword(uuid, keyword);
            }
        } catch (Exception e) {
            throw new AutomationException("AddKeyword exception", e);
        }
    }

    @Override
    public String getName() {
        return "AddKeyword";
    }

    @Override
    public String getParamType00() {
        return Automation.PARAM_TYPE_TEXT;
    }

    @Override
    public String getParamSrc00() {
        return Automation.PARAM_SOURCE_EMPTY;
    }

    @Override
    public String getParamDesc00() {
        return "Keyword";
    }

    @Override
    public String getParamType01() {
        return Automation.PARAM_TYPE_EMPTY;
    }

    @Override
    public String getParamSrc01() {
        return Automation.PARAM_SOURCE_EMPTY;
    }

    @Override
    public String getParamDesc01() {
        return "";
    }

    @Override
    public String getParamType02() {
        return Automation.PARAM_TYPE_EMPTY;
    }

    @Override
    public String getParamSrc02() {
        return Automation.PARAM_SOURCE_EMPTY;
    }

    @Override
    public String getParamDesc02() {
        return "";
    }

    @Override
    public List<EnumEvents> getValidEventsAtPre() {
        return EVENTS_AT_PRE;
    }

    @Override
    public List<EnumEvents> getValidEventsAtPost() {
        return EVENTS_AT_POST;
    }
}