I am trying to use the JCA and CICSECI functionality to connect to IBM Mainframe via the CICS Transaction Gateway.
My Servlet code is:
package com.ebs.jca.web;
import java.io.IOException;
import javax.annotation.Resource;
import javax.resource.ResourceException;
import javax.resource.cci.Connection;
import javax.resource.cci.ConnectionFactory;
import javax.resource.cci.Interaction;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.ebs.cics.copybook.T060.T060REQUEST;
import com.ebs.cics.copybook.T060.T060RESPONSE;
import com.ibm.connector2.cics.ECIInteractionSpec;
/**
* Servlet implementation class CICSServlet1
*/
@WebServlet("/CICSServlet1")
public class CICSServlet1 extends HttpServlet {
private static final long serialVersionUID = 1L;
@Resource(lookup="eis/cicsECI_CF")
private ConnectionFactory cf = null;
/**
* @see HttpServlet#HttpServlet()
*/
public CICSServlet1() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
T060REQUEST t060Req = new T060REQUEST();
t060Req.setAccountNumber("10917683");
t060Req.setApplication("ST");
t060Req.setTransactionId("T060");
T060RESPONSE t060Resp = new T060RESPONSE();
try {
Connection eciConn = cf.getConnection();
Interaction eciInt = eciConn.createInteraction();
// Setup the interactionSpec.
ECIInteractionSpec eSpec = new ECIInteractionSpec();
eSpec.setCommareaLength(8000);
//eSpec.setReplyLength(20);
eSpec.setFunctionName("EBOT060");
eSpec.setInteractionVerb(ECIInteractionSpec.SYNC_SEND_RECEIVE);
eciInt.execute(eSpec, t060Req, t060Resp);
//eciInt.execute(eSpec, t060Req, t060Resp);
/*System.out.println("return code is:");
System.out.println(t060Resp.getReturnCode());
icbResp.setResp__code(Short.toString(t060Resp.getReturnCode()));
icbResp.setResp__text(t060Resp.getReturnText());*/
} catch (ResourceException e) {
e.printStackTrace();
//throw e;
} catch (Exception e) {
e.printStackTrace();
throw e;
}
response.getWriter().append("Resp: ").append(Short.toString(t060Resp.getReturnCode())).append(", text: ").append(t060Resp.getReturnText());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
The exeption that I am getting is:
[err] com.ibm.connector2.cics.CICSUserInputException: CTG9628E InteractionSpec passed to execute() not of type ECIInteractionSpec
[err] at com.ibm.connector2.cics.ECIInteraction.execute(Unknown Source)
[err] at com.ebs.jca.web.CICSServlet1.doGet(CICSServlet1.java:62)
[err] at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
[err] at [internal classes]
[err] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[err] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[err] at java.lang.Thread.run(Thread.java:748)
My server.xml is as follows:
<server description="new server">
<!-- Enable features -->
<featureManager>
<feature>localConnector-1.0</feature>
<feature>javaee-7.0</feature>
<feature>jca-1.7</feature>
</featureManager>
<keyStore id="defaultKeyStore" password="{xor}NDomDCswLToPKDs="/>
<!-- To access this server from a remote client add a host attribute to the following element, e.g. host="*" -->
<httpEndpoint httpPort="9080" httpsPort="9443" id="defaultHttpEndpoint"/>
<!-- Automatically expand WAR files and EAR files -->
<applicationManager autoExpand="true"/>
<library id="ebsPropertiesFiles">
<folder dir="C:\ICBFiles\Properties\EBS\"/>
</library>
<!--The location of the cicseci.rar needs to be updated to the full path-->
<resourceAdapter autoStart="true" id="eciResourceAdapter" location="C:\ICBFiles\SharedLibs\cicseci9002.rar"/>
<connectionFactory id="cicsECI_CF" jndiName="eis/cicsECI_CF">
<!--The properties need to be updated to the location of the CICS Transaction Gateway-->
<properties.eciResourceAdapter ServerName="CICSQ2V5" connectionUrl="tcp://EBS-WSDEV2-2012.ad.xxx.pri" portNumber="2006"/>
</connectionFactory>
<applicationMonitor updateTrigger="mbean"/>
<webApplication id="jca-web" location="jca-web.war" name="jca-web"/>
</server>
And my POM is:
<?xml version="1.0" encoding="UTF-8"?>
<project
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<licenses>
<license>
<name>The Apache Software License, Version 2.0</name>
<url>https://raw.github.com/WASdev/ci.maven.tools/master/LICENSE</url>
<distribution>repo</distribution>
</license>
</licenses>
<modelVersion>4.0.0</modelVersion>
<groupId>com.ebs.jca</groupId>
<artifactId>jca-web</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>jca-web</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>net.wasdev.maven.tools.targets</groupId>
<artifactId>liberty-target</artifactId>
<version>RELEASE</version>
<type>pom</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.ibm.websphere.ws</groupId>
<artifactId>wsadie.marshall</artifactId>
<version>1.0.0</version>
<type>jar</type>
<!-- <scope>provided</scope> -->
</dependency>
<dependency>
<groupId>com.ebs.cics.copybooks</groupId>
<artifactId>T060</artifactId>
<version>1.2.0</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>javax.resource</groupId>
<artifactId>javax.resource-api</artifactId>
<version>1.7.1</version>
</dependency>
<dependency>
<groupId>com.ibm.cicseci</groupId>
<artifactId>cicseci</artifactId>
<version>9.0.0</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>com.ibm.cicseci</groupId>
<artifactId>cicsframe</artifactId>
<version>9.0.0</version>
<type>jar</type>
</dependency>
</dependencies>
<build>
<finalName>${project.name}</finalName>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.0.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
When I google the error code. The IBM docs state: https://www.ibm.com/support/knowledgecenter/en/SSZHFX_9.2.0/CTG9628E.html
"Review your Java client application. Refer to the product documentation for further details."
I have reviewed the following tutorials but they do not show a complete build environment. https://developer.ibm.com/cics/2014/05/06/using-jca-with-the-cics-tg-in-websphere-liberty-profile/ https://github.com/cicsdev/cicstg-jca-liberty-sample
And I get the same error when using the sample code.
I have also tried to setting up a connectionFactory as described in this link:
When I set up a connectionFactory as shown:
<connectionFactory id="com.ibm.cics.wlp.jca.local.eci" jndiName="eis/ECI">
<properties.com.ibm.cics.wlp.jca.remote.eci serverName="CICSQ2V5" connectionUrl="tcp://EBS-WSDEV2-2012.ad.xxxx.pri" portNumber="2006"/>
</connectionFactory>
the dependency injection breaks.
CWNEN0030E: The server was unable to obtain an object instance for the java:comp/env/com.ibm.ctg.samples.liberty.JCAServlet/cf reference. The exception message was: CWNEN1003E: The server was unable to find the eis/ECI binding with the javax.resource.cci.ConnectionFactory type for the java:comp/env/com.ibm.ctg.samples.liberty.JCAServlet/cf reference.
Many Thanks
Looking at your server.xml configuration, the web application doesn't have the classloader definition required to load the InteractionSpec class from the resource adapters.
So it should be specified as
<webApplication id="jca-web" location="jca-web.war" name="jca-web">
<classloader classProviderRef="eciResourceAdapter" />
</webApplication>