How to pass process variables to a process using REST API.
Hi,
I am using "http://localhost:8080//gwt-console-server/rs/process/definition/defaultPackage.TestProcess/new_instance" this REST API to run the process, I am able to run the process but not able to pass the variables througth this REST API.Following is code which I used to call this REST API.
Java Code:
import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.jboss.bpm.console.client.model.*;
import java.io.IOException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import org.jboss.soa.bpel.console.ModelAdaptor;
import com.google.gson.*;
public class ManagementClient {
private static final String process_start_url = "http://localhost:8080/gwt-console-server/rs/process/definition/defaultPackage.ProcessWV/new_instance";
private String username;
private String password;
public ManagementClient(String u, String p)
{
username = u;
password = p;
}
public void startProcess() throws Exception
{
getDataFromService( process_start_url, "POST");
}
private String getDataFromService(String urlpath, String method) throws Exception{
HttpClient httpclient = new HttpClient();
HttpMethod theMethod = null;
StringBuffer sb = new StringBuffer();
if ("GET".equalsIgnoreCase(method)) {
theMethod = new GetMethod(urlpath);
} else if ("POST".equalsIgnoreCase(method)) {
theMethod = new PostMethod(urlpath);
}
if (username != null && password != null) {
try {
httpclient.executeMethod(theMethod);
NameValuePair[] data2 = {new NameValuePair("Name", "shahid"), new NameValuePair("Age", "28")};
theMethod.setQueryString(data2);
} catch (IOException e) {
e.printStackTrace();
} finally {
theMethod.releaseConnection();
}
PostMethod authMethod = new PostMethod(authentication_url);
NameValuePair[] data = {new NameValuePair("j_username", username), new NameValuePair("j_password", password)};
authMethod.setRequestBody(data);
try {
httpclient.executeMethod(authMethod);
} catch (IOException e) {
e.printStackTrace();
} finally {
authMethod.releaseConnection();
}
}
try {
NameValuePair[] data2 = {new NameValuePair("Name", "shahid"), new NameValuePair("Age", "28")};
theMethod.setQueryString(data2);
httpclient.executeMethod(theMethod);
sb.append(theMethod.getResponseBodyAsString());
System.out.println("JSon Result: => " + sb.toString());
return sb.toString();
}catch (Exception e) {
throw e;
}finally {
theMethod.releaseConnection();
}
}
public static void main(String[] args) throws Exception {
ManagementClient client = new ManagementClient("admin","admin");
client.startProcess();
client.processFormRender();
}
}
Process BPMN:
<?xml version="1.0" encoding="UTF-8"?>
<bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.omg.org/bpmn20" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" xmlns:drools="http://www.jboss.org/drools" id="_6Jb3MHdrEeK6ToI0TrDnHQ" xsi:schemaLocation="http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd" targetNamespace="http://www.omg.org/bpmn20">
<bpmn2:itemDefinition id="_NameItem" structureRef="String"/>
<bpmn2:itemDefinition id="_AgeItem" structureRef="Integer"/>
<bpmn2:process id="defaultPackage.ProcessWV" drools:packageName="defaultPackage" name="ProcessWV" isExecutable="true">
<bpmn2:property id="Name" itemSubjectRef="_NameItem"/>
<bpmn2:property id="Age" itemSubjectRef="_AgeItem"/>
<bpmn2:startEvent id="_B3399BEE-F15A-4DE7-A302-A10D0CCB2A14" drools:bgcolor="#9acd32" drools:selectable="true" name="">
<bpmn2:outgoing>_3B1EC4FB-1459-4589-B014-203374D36A64</bpmn2:outgoing>
</bpmn2:startEvent>
<bpmn2:scriptTask id="_D306BBB0-A427-4DB6-A524-025AFB76D020" drools:selectable="true" name="Name/Age" scriptFormat="http://www.java.com/java">
<bpmn2:incoming>_3B1EC4FB-1459-4589-B014-203374D36A64</bpmn2:incoming>
<bpmn2:outgoing>_6841C8EE-C23C-4116-959B-2AD64BDEE50F</bpmn2:outgoing>
<bpmn2:script><![CDATA[System.out.println("Name="+Name);]]></bpmn2:script>
</bpmn2:scriptTask>
<bpmn2:endEvent id="_8A6FF5AA-01EC-44B3-836B-0723F1372791" drools:bgcolor="#ff6347" drools:selectable="true" name="">
<bpmn2:incoming>_6841C8EE-C23C-4116-959B-2AD64BDEE50F</bpmn2:incoming>
</bpmn2:endEvent>
<bpmn2:sequenceFlow id="_3B1EC4FB-1459-4589-B014-203374D36A64" drools:bgcolor="#000000" drools:selectable="true" sourceRef="_B3399BEE-F15A-4DE7-A302-A10D0CCB2A14" targetRef="_D306BBB0-A427-4DB6-A524-025AFB76D020"/>
<bpmn2:sequenceFlow id="_6841C8EE-C23C-4116-959B-2AD64BDEE50F" drools:bgcolor="#000000" drools:selectable="true" sourceRef="_D306BBB0-A427-4DB6-A524-025AFB76D020" targetRef="_8A6FF5AA-01EC-44B3-836B-0723F1372791"/>
</bpmn2:process>
<bpmndi:BPMNDiagram id="_6Jb3MXdrEeK6ToI0TrDnHQ">
<bpmndi:BPMNPlane id="_6Jb3MndrEeK6ToI0TrDnHQ" bpmnElement="defaultPackage.ProcessWV">
<bpmndi:BPMNShape id="_6Jb3M3drEeK6ToI0TrDnHQ" bpmnElement="_B3399BEE-F15A-4DE7-A302-A10D0CCB2A14">
<dc:Bounds height="30.0" width="30.0" x="165.0" y="135.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_6Jb3NHdrEeK6ToI0TrDnHQ" bpmnElement="_D306BBB0-A427-4DB6-A524-025AFB76D020">
<dc:Bounds height="80.0" width="100.0" x="285.0" y="90.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_6JceQHdrEeK6ToI0TrDnHQ" bpmnElement="_8A6FF5AA-01EC-44B3-836B-0723F1372791">
<dc:Bounds height="28.0" width="28.0" x="384.0" y="205.0"/>
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge id="_6JceQXdrEeK6ToI0TrDnHQ" bpmnElement="_3B1EC4FB-1459-4589-B014-203374D36A64">
<di:waypoint xsi:type="dc:Point" x="180.0" y="150.0"/>
<di:waypoint xsi:type="dc:Point" x="244.0" y="150.0"/>
<di:waypoint xsi:type="dc:Point" x="244.0" y="130.0"/>
<di:waypoint xsi:type="dc:Point" x="335.0" y="130.0"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="_6JceQndrEeK6ToI0TrDnHQ" bpmnElement="_6841C8EE-C23C-4116-959B-2AD64BDEE50F">
<di:waypoint xsi:type="dc:Point" x="335.0" y="130.0"/>
<di:waypoint xsi:type="dc:Point" x="400.0" y="130.0"/>
<di:waypoint xsi:type="dc:Point" x="398.0" y="219.0"/>
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
<bpmn2:relationship id="_6JceQ3drEeK6ToI0TrDnHQ">
<bpmn2:extensionElements>
<drools:ProcessAnalysisData>
<drools:Scenario xsi:type="drools:Scenario" id="default" name="Simulationscenario">
<drools:ScenarioParameters xsi:type="drools:ScenarioParameters_._type" baseTimeUnit="s"/>
<drools:ElementParameters xsi:type="drools:ElementParameters_._type" elementId="_B3399BEE-F15A-4DE7-A302-A10D0CCB2A14" id="_6JceRHdrEeK6ToI0TrDnHQ">
<drools:TimeParameters xsi:type="drools:TimeParameters">
<drools:WaitTime xsi:type="drools:Parameter">
<drools:FloatingParameter value="0.0"/>
</drools:WaitTime>
<drools:TimeUnit>ms</drools:TimeUnit>
</drools:TimeParameters>
</drools:ElementParameters>
<drools:ElementParameters xsi:type="drools:ElementParameters_._type" elementId="_D306BBB0-A427-4DB6-A524-025AFB76D020" id="_6JceRXdrEeK6ToI0TrDnHQ">
<drools:TimeParameters xsi:type="drools:TimeParameters">
<drools:ProcessingTime xsi:type="drools:Parameter">
<drools:RandomDistribution max="0.0" min="0.0"/>
</drools:ProcessingTime>
<drools:TimeUnit>ms</drools:TimeUnit>
</drools:TimeParameters>
<drools:CostParameters xsi:type="drools:CostParameters">
<drools:UnitCost xsi:type="drools:Parameter">
<drools:DecimalParameter value="0"/>
</drools:UnitCost>
</drools:CostParameters>
</drools:ElementParameters>
<drools:ElementParameters xsi:type="drools:ElementParameters_._type" elementId="_8A6FF5AA-01EC-44B3-836B-0723F1372791" id="_6JceRndrEeK6ToI0TrDnHQ">
<drools:TimeParameters xsi:type="drools:TimeParameters">
<drools:ProcessingTime xsi:type="drools:Parameter">
<drools:RandomDistribution max="0.0" min="0.0"/>
</drools:ProcessingTime>
<drools:TimeUnit>ms</drools:TimeUnit>
</drools:TimeParameters>
</drools:ElementParameters>
<drools:ElementParameters xsi:type="drools:ElementParameters_._type" elementId="_6841C8EE-C23C-4116-959B-2AD64BDEE50F" id="_6JceR3drEeK6ToI0TrDnHQ">
<drools:ControlParameters xsi:type="drools:ControlParameters">
<drools:Probability xsi:type="drools:Parameter">
<drools:FloatingParameter value="100.0"/>
</drools:Probability>
</drools:ControlParameters>
</drools:ElementParameters>
<drools:ElementParameters xsi:type="drools:ElementParameters_._type" elementId="_3B1EC4FB-1459-4589-B014-203374D36A64" id="_6JceSHdrEeK6ToI0TrDnHQ">
<drools:ControlParameters xsi:type="drools:ControlParameters">
<drools:Probability xsi:type="drools:Parameter">
<drools:FloatingParameter value="100.0"/>
</drools:Probability>
</drools:ControlParameters>
</drools:ElementParameters>
</drools:Scenario>
</drools:ProcessAnalysisData>
</bpmn2:extensionElements>
<bpmn2:source>_6Jb3MHdrEeK6ToI0TrDnHQ</bpmn2:source>
<bpmn2:target>_6Jb3MHdrEeK6ToI0TrDnHQ</bpmn2:target>
</bpmn2:relationship>
</bpmn2:definitions>
Process Image:
