org.apache.ode.extension.longrunning.LongRunningExtensionOperation Maven / Gradle / Ivy
package org.apache.ode.extension.longrunning;
import com.ibm.wsdl.extensions.soap.SOAPAddressImpl;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.impl.llom.util.AXIOMUtil;
import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ode.bpel.common.FaultException;
import org.apache.ode.bpel.dd.DeployDocument;
import org.apache.ode.bpel.dd.TDeployment;
import org.apache.ode.bpel.dd.TInvoke;
import org.apache.ode.bpel.dd.TProvide;
import org.apache.ode.bpel.o.OProcess;
import org.apache.ode.bpel.runtime.PartnerLinkInstance;
import org.apache.ode.bpel.runtime.extension.AbstractLongRunningExtensionOperation;
import org.apache.ode.bpel.runtime.extension.ExtensionContext;
import org.apache.ode.store.DeploymentUnitDir;
import org.apache.ode.utils.DOMUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import javax.wsdl.Definition;
import javax.wsdl.Port;
import javax.wsdl.Service;
import javax.xml.namespace.QName;
import java.io.File;
import java.io.Serializable;
import java.util.List;
public class LongRunningExtensionOperation extends AbstractLongRunningExtensionOperation {
private static Log log = LogFactory.getLog(AbstractLongRunningExtensionOperation.class);
private ExtensionContext extensionContext;
private String[] correlationValues;
private String cid;
LongRunningActivity longRunningActivity;
// private static final long serialVersionUID = -823722741332011L;
/**
* Initial stuff and calling an external service which causes to send back a response in an indefinite time.
* Corelation values should be set within this method.
*
* @param context ExtensionContext
* @param cid cid
* @param element ExtensionActivity
*/
public void runAsync(ExtensionContext context, String cid, Element element)
throws FaultException {
extensionContext = context;
this.cid = cid;
longRunningActivity = new LongRunningActivity(element);
OMElement payload;
ServiceClient sender = null;
String corId = null;
try {
Element inputEle = (Element) context.readVariable(longRunningActivity.getInputVariable());
Node inputNode = inputEle.getFirstChild().getFirstChild();
String inputStr = DOMUtils.domToString(inputNode);
payload = AXIOMUtil.stringToOM(inputStr);
// OMElement tempPayload = AXIOMUtil.stringToOM(inputStr);
// payload = tempPayload.getOMFactory().createOMElement(longRunningActivity.getOperation(),
// tempPayload.getNamespace().getNamespaceURI(),
// null);
// payload.addChild(tempPayload);
EndpointReference targetEPR = new EndpointReference(longRunningActivity.getServiceEPR());
Options options = new Options();
options.setTo(targetEPR);
options.setAction("urn:approve"); //TODO
sender = null;
sender = new ServiceClient();
sender.setOptions(options);
OMElement response = sender.sendReceive(payload);
corId = getCorrelationValue(response);
if (corId == null) {
log.error("Correlation value is null");
throw new FaultException(new QName(LongRunningExtensionBundle.NS, "Correlation value is null"));
}
} catch (Exception e) {
throw new FaultException(new QName(LongRunningExtensionBundle.NS, "LongRunningExtension"), e);
} finally {
if (sender != null) {
try {
//To release http connections to connection pool
sender.cleanupTransport();
} catch (AxisFault axisFault) {
axisFault.printStackTrace();
log.warn("Unable to release http connections");
// context.completeWithFault(cid, axisFault);
}
}
}
correlationValues = new String[]{corId};
context.setCorrelationValues(correlationValues);
String correlatorId = genCorrelatorId();
if (correlatorId == null) {
throw new FaultException(new QName(LongRunningExtensionBundle.NS, "Null correlatorId"));
}
context.setCorrelatorId(correlatorId);
// String soapBody = "\n" +
// "\t\t\t\t\t\t\n" +
// "\t\t\t\t\t\t uui World \n" +
// "\t\t\t\t\t\t FNAME \n" +
// "\t\t\t\t\t\t LNAME \n" +
// "\t\t\t\t\t\t \n" +
// "\t\t\t\t\t\t1000 \n" +
// "\t\t\t\t\t\tColombo \n" +
// "\t\t\t\t\t\t3 \n" +
// "\t\t\t\t\t\t2001-10-26T21:32:52 \n" +
// "\t\t\t\t\t ";
// try {
// payload = AXIOMUtil.stringToOM(soapBody);
// } catch (XMLStreamException e) {
// e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
// context.completeWithFault(cid, new Exception("payload error"));
// return;
// }
//EndpointReference targetEPR = new EndpointReference("http://localhost:9763/services/ClaimService");
//options.setProperty(HTTPConstants.AUTO_RELEASE_CONNECTION, "true");
}
private String getCorrelationValue(OMElement response) {
if (!response.getQName().equals(new QName(null, "part")))
return null;
OMElement hifb = response.getFirstChildWithName(new QName("http://wso2.org/humantask/feedback", "HIFeedback"));
if (hifb == null) {
return null;
}
OMElement taskIDele = hifb.getFirstChildWithName(new QName("http://wso2.org/humantask/feedback", "TaskID"));
if (taskIDele == null) {
return null;
}
return taskIDele.getText();
}
private String genCorrelatorId() throws FaultException {
PartnerLinkInstance plink;
String operation = longRunningActivity.getResponseOperation();
plink = extensionContext.getPartnerLinkInstance(longRunningActivity.getPartnerLink());
return plink.partnerLink.getName() + "." + operation;
}
/**
* Called when the response for the above service received
*
* @param mexId MessageExchange id
*/
public void onRequestReceived(String mexId) throws FaultException {
_log.info("Response received");
//((ExtensionContextImpl)extensionContext).setBpelRuntimeContext(context);
Element notificationMessageEle = extensionContext.getInternalInstance().getMyRequest(mexId);
Node part = extensionContext.getPartData(notificationMessageEle, longRunningActivity.getOutputVariable());
_log.info("RESPONSE: " + DOMUtils.domToString(notificationMessageEle));
_log.info("PART: " + DOMUtils.domToString(part));
extensionContext.writeVariable(longRunningActivity.getOutputVariable(), part);
extensionContext.complete(cid);
}
private class LongRunningActivity implements Serializable {
private static final long serialVersionUID = -82336987878838011L;
private Element content;
private DeploymentUnitDir du;
private QName serviceName;
private String servicePort;
private QName callbackServiceName;
private String callbackServicePort;
private String serviceURI;
LongRunningActivity(Element content) {
this.content = content;
du = new DeploymentUnitDir(new File(extensionContext.getDUDir()));
}
public String getName() {
return content.getAttribute("name");
}
public String getInputVariable() {
return content.getAttribute("inputVariable");
}
public String getOutputVariable() {
return content.getAttribute("outputVariable");
}
public String getPartnerLink() {
return content.getAttribute("partnerLink");
}
public String getOperation() {
return content.getAttribute("operation");
}
public String getResponseOperation() {
return content.getAttribute("responseOperation");
}
public String getServiceEPR() throws FaultException {
if (du == null) {
du = new DeploymentUnitDir(new File(extensionContext.getDUDir()));
}
DeployDocument deployDocument = du.getDeploymentDescriptor();
OProcess processModel = extensionContext.getProcessModel();
TDeployment.Process myProcess = null;
List processList = deployDocument.getDeploy().getProcessList();
for (TDeployment.Process process : processList) {
if (process.getName().equals(processModel.getQName())) {
myProcess = process;
break;
}
}
if (myProcess == null) {
throw new FaultException(new QName(LongRunningExtensionBundle.NS, "related process not found"));
}
List tInvokeList = myProcess.getInvokeList();
for (TInvoke tInvoke : tInvokeList) {
if (tInvoke.getPartnerLink().equals(getPartnerLink())) {
serviceName = tInvoke.getService().getName();
servicePort = tInvoke.getService().getPort();
break;
}
}
if (serviceName == null || servicePort == null) {
log.error("service and port for human interaction is not found in the deploy.xml");
throw new FaultException(new QName(LongRunningExtensionBundle.NS,
"service and port for human interaction is not found in the deploy.xml"));
}
//get the callback information
List tProvideList = myProcess.getProvideList();
for (TProvide tProvide : tProvideList) {
if (tProvide.getPartnerLink().equals(getPartnerLink())) {
callbackServiceName = tProvide.getService().getName();
callbackServicePort = tProvide.getService().getPort();
break;
}
}
// if (callbackServiceName == null || callbackServicePort == null) {
// throw new FaultException(new QName(LongRunningExtensionBundle.NS,
// "service and port for human task callback is not found in the deploy.xml"));
// }
Definition serviceWSDL;
serviceWSDL = du.getDefinitionForService(serviceName);
Service service = serviceWSDL.getService(serviceName);
Port port = service.getPort(servicePort);
List extList = port.getExtensibilityElements();
for (Object extEle : extList) {
if (extEle instanceof SOAPAddressImpl) {
SOAPAddressImpl soapAddress = (SOAPAddressImpl) extEle;
serviceURI = soapAddress.getLocationURI();
break;
}
}
if (serviceURI == null) {
throw new FaultException(new QName(LongRunningExtensionBundle.NS, "Service URI is not available"));
}
return serviceURI;
}
}
}
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