Sample EJB accessing a CICS resource adapter using CommArea with extended LUW.
Note: To enable SSL, include the SSL code snippet shown in bold in the
CICS Program Call with Commarea Using SSL sample.
- File CommAreaEJB.java:
-
package com.mypackage.commareaEJB ;
import javax.ejb.Remote;
import javax.ejb.EJBException;
@Remote
public interface CommareaEJB {
public byte[] First(byte[] commarea) throws javax.resource.ResourceException;
public int getCobolReturnCode();
public void removeSF() throws EJBException;
public void passivate() throws EJBException;
public void activate() throws EJBException;
}
- File CommAreaEJBBean.java:
-
package com.mypackage.commareaEJB ;
import javax.ejb.Stateless;
import javax.ejb.Stateful;
import javax.ejb.EJB;
import javax.ejb.Init;
import javax.ejb.Remove;
import javax.ejb.PostActivate;
import javax.ejb.PrePassivate;
import javax.ejb.EJBException;
import javax.annotation.Resource;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.ejb.Remote;
import com.microfocus.cics.connector.ccl.CCLExtendMode;
import com.microfocus.cics.connector.ccl.CommArea;
import com.microfocus.cics.connector.ccl.AbendException;
import com.microfocus.cics.connector.ccl.AbendCodeType;
import com.microfocus.cics.connector.ccl.CommAreaSizeException;
@Stateful(name="commareaEJB", mappedName="ejb/commareaEJB")
@Remote(com.mypackage.commareaEJB.CommareaEJB.class)
public class CommareaEJBBean implements CommareaEJB, java.io.Serializable {
@Resource (name="CCIMFCICS_v1.5", authenticationType=Resource.AuthenticationType.CONTAINER, shareable=false)
private transient javax.resource.cci.ConnectionFactory cf;
private boolean disposed = false;
private String sessionId = null;
private transient javax.resource.cci.Connection lastConnectionHandle = null;
private boolean doInitialize = true;
public static final int DEFAULT_COBOL_RETURN_CODE = 2147483647;
private int cobolReturnCode = DEFAULT_COBOL_RETURN_CODE;
com.microfocus.cics.connector.cci.MFECIInteractionSpec interactionSpec = new com.microfocus.cics.connector.cci.MFECIInteractionSpec();
public javax.resource.cci.ConnectionFactory getConnectionFactory() {
return cf ;
}
@PostConstruct
public void create() {
disposed = false;
sessionId = null;
interactionSpec.setFunctionName("CASA_ECI_Function");
interactionSpec.setArgument(0, com.microfocus.cobol.lang.Pointer.class,
com.microfocus.cobol.RuntimeProperties.OUTPUT_ONLY);
interactionSpec.setArgument(1, com.microfocus.cobol.lang.Pointer.class,
com.microfocus.cobol.RuntimeProperties.BY_VALUE);
interactionSpec.setUserName("SYSAD");
interactionSpec.setPassword("SYSAD");
interactionSpec.setProgramName("EC01");
}
@TransactionAttribute(TransactionAttributeType.NEVER)
public byte[] First(byte[] commarea) throws javax.ejb.EJBException {
javax.resource.cci.Connection con = null;
disposed = false;
con = getCobolConnection();
javax.resource.cci.RecordFactory rf = null;
javax.resource.cci.Interaction ix = null;
try {
if(doInitialize) {
initialize(false, con);
doInitialize = false;
}
ix = con.createInteraction();
interactionSpec.setExtendMode(CCLExtendMode.CCL_EXTENDED);
interactionSpec.setCommArea(new CommArea(commarea));
rf = cf.getRecordFactory();
javax.resource.cci.IndexedRecord oRec = rf.createIndexedRecord("FirstOut");
javax.resource.cci.IndexedRecord iRec = interactionSpec.getInputRecord();
iRec.add(new com.microfocus.cobol.lang.Pointer(commarea));
ix.execute(interactionSpec, iRec, oRec);
ix.close();
cobolReturnCode = interactionSpec.getReturnCode();
CommArea returnCommArea = interactionSpec.getReturnCommArea();
byte[] retCommArea = returnCommArea.getCommArea();
return retCommArea;
} catch(javax.resource.ResourceException ex) {
cobolReturnCode = interactionSpec.getReturnCode();
Exception linkedEx = ex.getLinkedException();
if(linkedEx instanceof AbendException) {
AbendException aex = (AbendException) linkedEx;
System.out.println("AbendCode = " + aex.getAbendCode());
System.out.println("Abend Code Type = " + aex.getAbendCodeType());
}
throw new javax.ejb.EJBException("First threw a resource Exception", ex);
} catch(java.io.UnsupportedEncodingException ex) {
cobolReturnCode = interactionSpec.getReturnCode();
throw new javax.ejb.EJBException("First threw a resource Exception", ex);
} catch(CommAreaSizeException ex) {
cobolReturnCode = interactionSpec.getReturnCode();
throw new javax.ejb.EJBException("First threw a resource Exception", ex);
}
finally {
closeCobolConnection(con);
ix = null; rf = null;
}
}
@TransactionAttribute(TransactionAttributeType.NEVER)
public byte[] commit() throws javax.ejb.EJBException {
javax.resource.cci.Connection con = null;
disposed = false;
con = getCobolConnection();
javax.resource.cci.RecordFactory rf = null;
javax.resource.cci.Interaction ix = null;
try {
if(doInitialize) {
initialize(false, con);
doInitialize = false;
}
ix = con.createInteraction();
interactionSpec.setExtendMode(CCLExtendMode.CCL_COMMIT);
rf = cf.getRecordFactory();
javax.resource.cci.IndexedRecord iRec = interactionSpec.getInputRecord();
javax.resource.cci.IndexedRecord oRec = rf.createIndexedRecord("FirstOut");
ix.execute(interactionSpec, iRec, oRec);
ix.close();
cobolReturnCode = interactionSpec.getReturnCode();
CommArea returnCommArea = interactionSpec.getReturnCommArea();
byte[] retCommArea = returnCommArea.getCommArea();
return retCommArea;
} catch(javax.resource.ResourceException ex) {
cobolReturnCode = interactionSpec.getReturnCode();
Exception linkedEx = ex.getLinkedException();
if(linkedEx instanceof AbendException) {
AbendException aex = (AbendException) linkedEx;
System.out.println("AbendCode = " + aex.getAbendCode());
System.out.println("Abend Code Type = " + aex.getAbendCodeType());
}
throw new javax.ejb.EJBException("First threw a resource Exception", ex);
} catch(java.io.UnsupportedEncodingException ex) {
cobolReturnCode = interactionSpec.getReturnCode();
throw new javax.ejb.EJBException("First threw a resource Exception", ex);
}
finally {
closeCobolConnection(con);
interactionSpec = null; ix = null; rf = null;
}
}
@TransactionAttribute(TransactionAttributeType.NEVER)
public byte[] rollback() throws javax.ejb.EJBException {
javax.resource.cci.Connection con = null;
disposed = false;
con = getCobolConnection();
javax.resource.cci.RecordFactory rf = null;
javax.resource.cci.Interaction ix = null;
try {
if(doInitialize) {
initialize(false, con);
doInitialize = false;
}
ix = con.createInteraction();
interactionSpec.setExtendMode(CCLExtendMode.CCL_BACKOUT);
rf = cf.getRecordFactory();
javax.resource.cci.IndexedRecord iRec = interactionSpec.getInputRecord();
javax.resource.cci.IndexedRecord oRec = rf.createIndexedRecord("FirstOut");
ix.execute(interactionSpec, iRec, oRec);
ix.close();
cobolReturnCode = interactionSpec.getReturnCode();
CommArea returnCommArea = interactionSpec.getReturnCommArea();
byte[] retCommArea = returnCommArea.getCommArea();
return retCommArea;
} catch(javax.resource.ResourceException ex) {
cobolReturnCode = interactionSpec.getReturnCode();
Exception linkedEx = ex.getLinkedException();
if(linkedEx instanceof AbendException) {
AbendException aex = (AbendException) linkedEx;
System.out.println("AbendCode = " + aex.getAbendCode());
System.out.println("Abend Code Type = " + aex.getAbendCodeType());
}
throw new javax.ejb.EJBException("First threw a resource Exception", ex);
} catch(java.io.UnsupportedEncodingException ex) {
cobolReturnCode = interactionSpec.getReturnCode();
throw new javax.ejb.EJBException("First threw a resource Exception", ex);
}
finally {
closeCobolConnection(con);
interactionSpec = null; ix = null; rf = null;
}
}
@Remove
public void removeSF() {
cleanup();
}
void cleanup() throws javax.ejb.EJBException {
try {
if(!disposed) {
if(lastConnectionHandle != null) {
com.microfocus.cics.connector.cci.MFECIConnection.dispose(sessionId);
closeCobolConnection(lastConnectionHandle);
}
else {
com.microfocus.cics.connector.cci.MFECIConnection.dispose(sessionId);
}
disposed = true ;
}
} catch(javax.resource.ResourceException ex) {
throw new javax.ejb.EJBException("Error disposing a Cobol Connection: ", ex);
}
finally {
lastConnectionHandle = null;
cf = null;
}
}
public int getCobolReturnCode() throws javax.ejb.EJBException {
return cobolReturnCode;
}
@PrePassivate
public void passivate() throws javax.ejb.EJBException {
}
@PostActivate
public void activate() throws javax.ejb.EJBException {
}
private void initialize(boolean isInitial, javax.resource.cci.Connection con) throws javax.ejb.EJBException {
try {
javax.resource.cci.Interaction ix = con.createInteraction();
com.microfocus.cics.connector.cci.MFECIInteractionSpec iSpec = new com.microfocus.cics.connector.cci.MFECIInteractionSpec();
iSpec.setFunctionName("initialize");
javax.resource.cci.RecordFactory rf = cf.getRecordFactory();
javax.resource.cci.IndexedRecord irec = rf.createIndexedRecord("beanArgs");
irec.add(new Boolean(isInitial));
javax.resource.cci.Record orec = ix.execute(iSpec, irec);
ix.close();
rf = null ; ix = null ; iSpec = null ; irec = null ;
} catch(javax.resource.ResourceException ex) {
throw new javax.ejb.EJBException("initialize threw ResourceException: ", ex);
}
}
private javax.resource.cci.Connection getCobolConnection() throws javax.ejb.EJBException {
com.microfocus.cics.connector.cci.MFECIConnection con = null;
try {
con = (com.microfocus.cics.connector.cci.MFECIConnection) cf.getConnection(new com.microfocus.cics.connector.cci.MFECIConnectionSpec(true, true, sessionId));
lastConnectionHandle = con;
} catch (javax.resource.ResourceException ex) {
throw new javax.ejb.EJBException("Error getting a Cobol Connection: ", ex);
}
return con ;
}
private void closeCobolConnection(javax.resource.cci.Connection con) throws javax.ejb.EJBException {
try {
if(con != null) {
if(sessionId == null) {
sessionId = ((com.microfocus.cics.connector.cci.MFECIConnection)con).getSessionId();
}
con.close();
}
} catch (javax.resource.ResourceException ex) {
throw new javax.ejb.EJBException("Error closing a Cobol Connection: ", ex);
}
}