Loan Approval WS-BPEL Business Process

This project implements the Loan Approval Process using WS-BPEL 2.0 and WSDL 1.1. The implementation is deployable in a BPEL engine. I have developed and tested the process with some versions of Apache ODE 1.3.x.

The implementation under the folder resources consists of a .bpel file that describes the main business logic of the process and a number of .wsdl files that specifies various functions provided by different Web services.

Requirements

• Apache ODE 1.3.x (please see the notes on Apache ODE)
• Apache Ant

Deploying/Running

The local path to the Apache ODE repository is defined in the file project.properties. This value must reflect the actual location of Apache ODE in your host/computer.

ode.deploy.dir=/usr/local/opt/tomcat/libexec/webapps/ode/WEB-INF/processes

Compiling

ant process.compile

Deploying

ant process.deploy

Packaging

ant process.package

Notes

• The legal delay before the customer makes a decision is current set at 5 seconds.

<bp:wait
    name="LegalDelayForThinking">
    <bp:for>'P0Y0M0DT0H0M5S'</bp:for>
</bp:wait>

• The legal time-out is currently set at 30 seconds.

<!-- Legal time-out -->
<bp:onAlarm>
	<bp:for>'P0Y0M0DT0H0M30S'</bp:for>
	...	

These values are merely used for demonstrating purposes only.

Apache ODE Engines

Apache ODE 1.3.3

If a process has multiple consecutive invocations to a service, that will raise an exception via Apache Axis 2 "axis2.AxisFault" regarding "two services cannot have same name" (see https://issues.apache.org/jira/browse/ODE-647 for more information).

Applying the corresponding patch and rebuilding Apache ODE from its source will fix the issue.

Apache ODE 1.3.4 & 1.3.5

These two engines throw a rather cryptic error message java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0 as following.

09:38:42,476 ERROR [ExternalService] Error sending message (mex={PartnerRoleMex#hqejbhcnphrdwjpnhpo8vp [PID {urn:com:westbank:bpel:LoanApproval:2019:01}LoanApproval-1] calling org.apache.ode.bpel.epr.WSAEndpoint@1bb5f13a.update(...) Status ASYNC}): Dangling meta character '*' near index 0
*.local
^
java.util.regex.PatternSyntaxException: Dangling meta character '*' near index 0
*.local
^
	at java.util.regex.Pattern.error(Pattern.java:1957)
	at java.util.regex.Pattern.sequence(Pattern.java:2125)
	at java.util.regex.Pattern.expr(Pattern.java:1998)
	at java.util.regex.Pattern.compile(Pattern.java:1698)
	at java.util.regex.Pattern.<init>(Pattern.java:1351)
	at java.util.regex.Pattern.compile(Pattern.java:1028)
	at java.util.regex.Pattern.matches(Pattern.java:1133)
	at java.lang.String.matches(String.java:2121)
	at org.apache.axis2.transport.http.ProxyConfiguration.validateNonProxyHosts(ProxyConfiguration.java:261)
	at org.apache.axis2.transport.http.ProxyConfiguration.isProxyEnabled(ProxyConfiguration.java:223)
	at org.apache.axis2.transport.http.AbstractHTTPSender.getHostConfiguration(AbstractHTTPSender.java:271)
	at org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:502)
	at org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
	at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
	at org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
	at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
	at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
	at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
	at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
	at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
	at org.apache.ode.axis2.SoapExternalService$1$1.call(SoapExternalService.java:206)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Apache ODE 1.3.6 & 1.3.7

These engines work perfectly fine for the Loan Approval BPEL process. There are no known errors/bugs so far.

Apache ODE 1.3.8

The XMl messages sent by Apache ODE 1.3.8 to LoanFile services are broken. This issue does not happen with other versions.