Inqmy resource adapter for SAP with Bea Weblogic Server

Question

          Hi everybody,
          Anybody have tried to use INQMY resource adapter for SAP with Bea weblogic server
          It works well with INQMY server, but with BEA I'm getting a lot of problems creating
          the connections.
          Thanks in advance.
          Xavi.
          

Answer 1

All,
          Here are the steps we (used for internal testing) had to perform to get
          IN-Q-MY adapter for SAP to work with WebLogic:
          The wli.adapter.inqmy.sapr3.spi package contains extensions to the
          In-Q-My J2EE Connector Architecture classes to overcome some limitations
          in the base implementation classes. To get around these issues, we had
          to extend their R3ManagedConnectionFactory, R3ConnectionManager, and
          R3ConnectionFactory classes.
          * The javax.resource.spi.ManagedConnectionFactory implementation
          does not over-ride the equals and hashCode methods correctly. This
          causes problems with WLS 6.1.
          * There is a bug in their javax.resource.spi.ConnectionManager
          implementation for non-managed uses of the adapter. Consequently, their
          adapter cannot be used in a non-managed scenario.
          * The javax.resource.cci.ConnectionFactory class does not support
          the getConnection() method that does not take any arguments (it throws a
          null pointer exception).
          I am attaching the classes discussed above.
          Cheers,
          Chris
          Torsten Friebe wrote:
          > Hi,
          >
          > does anybody know where to get a trail version - if one exists - of IN-Q-MY
          > application server or the resource adapter?
          >
          > Thanks, regards
          > Torsten
          >
          > "Xavi" <[email protected]> schrieb im Newsbeitrag
          > news:[email protected]...
          >
          >>Hi everybody,
          >>
          >>Anybody have tried to use INQMY resource adapter for SAP with Bea weblogic
          >>
          > server
          >
          >>?
          >>
          >>It works well with INQMY server, but with BEA I'm getting a lot of
          >>
          > problems creating
          >
          >>the connections.
          >>
          >>Thanks in advance.
          >>Xavi.
          >>
          >>
          >
          >
          package wli.adapter.inqmy.sapr3.spi;
          import java.io.Serializable;
          import javax.resource.ResourceException;
          import javax.resource.cci.Connection;
          import javax.resource.cci.ConnectionSpec;
          import javax.resource.spi.ConnectionManager;
          import javax.resource.spi.ConnectionRequestInfo;
          import javax.resource.spi.ManagedConnection;
          import javax.resource.spi.ManagedConnectionFactory;
          import com.inqmy.r3adapter.R3ConnectionSpec;
          import com.inqmy.r3adapter.R3ManagedConnectionFactory;
          * Extends the In-Q-My implementation to allow for getConnection() with no
          * connection spec, i.e. use the default configured connection parameters.
          public class R3ConnectionFactory
          extends com.inqmy.r3adapter.R3ConnectionFactory
          implements com.bea.connector.IProxyMarker {
          private R3ConnectionSpec m_cspec;
          public R3ConnectionFactory(ConnectionManager cm, R3ManagedConnectionFactory mcf)
          throws ResourceException {
          super(cm, mcf);
          String strClientNumber = mcf.getClientNumber();
          if (strClientNumber == null) {
          throw new javax.resource.spi.IllegalStateException("ClientNumber not set for "+mcf);
          String strLanguage = mcf.getLanguage();
          if (strLanguage == null) {
          throw new javax.resource.spi.IllegalStateException("Language not set for "+mcf);
          String strUserName = mcf.getUserName();
          if (strUserName == null) {
          throw new javax.resource.spi.IllegalStateException("UserName not set for "+mcf);
          String strPassword = mcf.getPassword();
          if (strPassword == null) {
          throw new javax.resource.spi.IllegalStateException("Password not set for "+mcf);
          m_cspec = new R3ConnectionSpec(strClientNumber, strLanguage, strUserName, strPassword);
          public Connection getConnection(ConnectionSpec connectionSpec)
          throws ResourceException {
          if (connectionSpec == null) connectionSpec = m_cspec;
          return super.getConnection(connectionSpec);
          package wli.adapter.inqmy.sapr3.spi;
          import java.io.Serializable;
          import javax.resource.ResourceException;
          import javax.resource.spi.ConnectionManager;
          import javax.resource.spi.ConnectionRequestInfo;
          import javax.resource.spi.ManagedConnection;
          import javax.resource.spi.ManagedConnectionFactory;
          * Extends the In-Q-My implementation to over-ride the
          * allocateConnection method to return a CCI connection vs. a ManagedConnection
          public class R3DefaultConnectionManager
          implements ConnectionManager, Serializable {
          public R3DefaultConnectionManager() {}
          public Object
          allocateConnection(ManagedConnectionFactory mcf, ConnectionRequestInfo cri)
          throws ResourceException {
          ManagedConnection mc = mcf.createManagedConnection(null, cri);
          return mc.getConnection(null, cri);
          package wli.adapter.inqmy.sapr3.spi;
          import javax.resource.spi.ConnectionManager;
          import javax.resource.spi.ConnectionRequestInfo;
          import javax.resource.spi.ManagedConnection;
          import javax.security.auth.Subject;
          * Extends the In-Q-My implementation to get around some problems encountered
          * while running on WebLogic:
          * <ul>
          * <li>Must over-ride default implementation of equals and hashCode method</li>
          * <li>Needed to provide my version of the CCI ConnectionFactory</li>
          * <li>Needed to provide my version of the default ConnectionManager for the
          * non-managed scenario use case</li>
          * </ul>
          public class R3ManagedConnectionFactory
          extends com.inqmy.r3adapter.R3ManagedConnectionFactory {
          private int m_iHashCode;
          transient private com.inqmy.r3adapter.R3ConnectionRequestInfo t_cri = null;
          public R3ManagedConnectionFactory() {
          super();
          java.rmi.server.UID uid = new java.rmi.server.UID();
          m_iHashCode = uid.hashCode();
          public Object createConnectionFactory() {
          // need to install our own default connection manager because In-Q-My
          // version causes a ClassCastException in CCI ConnectionFactory
          // getConnection
          return createConnectionFactory(new R3DefaultConnectionManager());
          public ManagedConnection createManagedConnection(Subject subject, ConnectionRequestInfo cri)
          throws javax.resource.ResourceException {
          // need to check for null on the ConnectionRequestInfo object because the
          // In-Q-My R3ManagedConnection ctor does not check for null
          if (cri == null) cri = getDefaultConnectionRequestInfo();
          return new com.inqmy.r3adapter.R3ManagedConnection(this, subject, cri);
          public Object createConnectionFactory(ConnectionManager connectionManager) {
          // need to supply a connection factory that can deal with getConnection
          // that does not take a ConnectionSpec
          try {
          return new R3ConnectionFactory(connectionManager, this);      
          } catch (javax.resource.ResourceException re) {
          re.printStackTrace();
          throw new java.lang.IllegalStateException(re.getMessage());
          com.inqmy.r3adapter.R3ConnectionRequestInfo getDefaultConnectionRequestInfo()
          throws javax.resource.spi.IllegalStateException {
          if (t_cri == null) {
          String strClientNumber = this.getClientNumber();
          if (strClientNumber == null) {
          throw new javax.resource.spi.IllegalStateException("ClientNumber not set for "+this);
          String strLanguage = this.getLanguage();
          if (strLanguage == null) {
          throw new javax.resource.spi.IllegalStateException("Language not set for "+this);
          String strUserName = this.getUserName();
          if (strUserName == null) {
          throw new javax.resource.spi.IllegalStateException("UserName not set for "+this);
          String strPassword = this.getPassword();
          if (strPassword == null) {
          throw new javax.resource.spi.IllegalStateException("Password not set for "+this);
          t_cri = new com.inqmy.r3adapter.R3ConnectionRequestInfo(strClientNumber, strLanguage, strUserName, strPassword);
          return t_cri;
          public boolean equals(Object obj) {
          if (obj == null) return false;
          if (obj == this) return true;
          if (!this.getClass().isInstance(obj)) return false;
          R3ManagedConnectionFactory mcf = (R3ManagedConnectionFactory)obj;
          return compare(getClientNumber(), mcf.getClientNumber()) &&
          compare(getLanguage(), mcf.getLanguage()) &&
          compare(getUserName(), mcf.getUserName()) &&
          compare(getPassword(), mcf.getPassword()) &&
          compare(getServerName(), mcf.getServerName()) &&
          compare(getSystemNumber(), mcf.getSystemNumber());
          protected final boolean compare(final Object obj1, final Object obj2) {
          if (obj1 == obj2) return true;
          if (obj1 != null) {
          return obj1.equals(obj2);
          } else {
          if (obj2 == null) {
          return true;
          } else {
          return false;
          public int hashCode() { return m_iHashCode; }