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Before we move on, let's inspect how the plugin is configured first.

Image Added

Figure 1: Configure JSON Tool

We will need to obtain the attributes of the configured plugin, so that we can then programmatically configure it with coding.

One quick way to learn the attributes needed is to make use of the browser's Developer Tools > Network to observe the submission made when we hit the submit button.





Code Block
import java.util.Map;
import java.util.HashMap;
import javax.servlet.http.HttpServletRequest;
import org.joget.apps.app.service.AppUtil;
import org.joget.plugin.base.Plugin;
import org.joget.plugin.base.PluginManager;
import org.joget.workflow.util.WorkflowUtil;
import org.joget.apps.app.model.AppDefinition;
import org.joget.apps.app.service.AppPluginUtil;
import org.joget.plugin.property.model.PropertyEditable;

import org.joget.workflow.model.service.WorkflowManager;
import org.joget.workflow.model.WorkflowProcess;
import org.joget.apps.app.service.AppUtil;
import org.joget.workflow.model.WorkflowProcessLink;
import org.joget.workflow.model.WorkflowProcessResult;
import org.joget.workflow.model.WorkflowActivity;
import org.joget.workflow.model.WorkflowVariable;
import org.joget.commons.util.LogUtil;
import org.joget.apps.app.lib.JsonTool;

public void callPlugin(){
	try {    
        PluginManager pluginManager = (PluginManager) AppUtil.getApplicationContext().getBean("pluginManager");
        
		//plugin to call
        String pluginName = "org.joget.apps.app.lib.JsonTool";
        Plugin plugin = pluginManager.getPlugin(pluginName);
        AppDefinition appDef = AppUtil.getCurrentAppDefinition();
        
		//JSON API to call to start a new process
        String jsonURL = "http://localhost:8080/jw/web/json/workflow/process/start/expenseclaim:latest:process1";
        
		//prepare workflow variables for the process
        List params = new ArrayList();
        
        Map param = new HashMap();
        param.put("name", "var_approval");
        param.put("value", "New");
        params.add(param);

		param = new HashMap();
        param.put("name", "var_SelectApprover");
        param.put("value", "clark");
        params.add(param);
        
        Object[] paramsArray = params.toArray();
        
		//prepare propertiesMap mapped specifically for JSON tool
        Map propertiesMap = new HashMap();
        propertiesMap.put("jsonUrl", jsonURL);
        propertiesMap.put("requestType", "post");
        propertiesMap.put("debugMode", "true");
        propertiesMap.put("headers", new Object[]{});
        //propertiesMap.put("params", new Object[]{ params });
        propertiesMap.put("params", paramsArray );
        
        //set properties into the JSON tool programmatically
        if (plugin instanceof PropertyEditable) {
            ((PropertyEditable) plugin).setProperties(propertiesMap);
            LogUtil.info("migrateProcess", "set properties");
        }
        
        //invoke the JSON plugin
		plugin.execute(propertiesMap);
        
        LogUtil.info("callPlugin", "execution finished");
    } catch (Exception ex) {
        LogUtil.error("callPlugin", ex, "Error");
    }
}

callPlugin();