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From djen...@apache.org
Subject cvs commit: incubator-geronimo/modules/core/src/java/org/apache/geronimo/connector/outbound ConnectionReleaser.java ConnectionTrackingInterceptor.java ConnectorComponentContext.java ConnectorTransactionContext.java
Date Tue, 09 Dec 2003 04:15:21 GMT
djencks     2003/12/08 20:15:21

  Added:       modules/core/src/java/org/apache/geronimo/connector/outbound
                        ConnectionReleaser.java
                        ConnectionTrackingInterceptor.java
                        ConnectorComponentContext.java
                        ConnectorTransactionContext.java
  Log:
  More interfaces and moved interceptors for connector framework refactoring
  
  Revision  Changes    Path
  1.1                  incubator-geronimo/modules/core/src/java/org/apache/geronimo/connector/outbound/ConnectionReleaser.java
  
  Index: ConnectionReleaser.java
  ===================================================================
  package org.apache.geronimo.connector.outbound;
  
  /**
   *
   *
   * @version $Revision: 1.1 $ $Date: 2003/12/09 04:15:20 $
   *
   * */
  public interface ConnectionReleaser {
      void afterCompletion(ManagedConnectionInfo managedConnectionInfo);
  }
  
  
  
  1.1                  incubator-geronimo/modules/core/src/java/org/apache/geronimo/connector/outbound/ConnectionTrackingInterceptor.java
  
  Index: ConnectionTrackingInterceptor.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2003 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" and
   *    "Apache Geronimo" must not be used to endorse or promote products
   *    derived from this software without prior written permission. For
   *    written permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    "Apache Geronimo", nor may "Apache" appear in their name, without
   *    prior written permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   * ====================================================================
   */
  
  package org.apache.geronimo.connector.outbound;
  
  import javax.resource.ResourceException;
  import javax.resource.spi.ManagedConnection;
  import javax.resource.spi.DissociatableManagedConnection;
  import javax.security.auth.Subject;
  
  import java.util.Collection;
  import java.util.Set;
  import java.util.Iterator;
  
  import org.apache.geronimo.connector.outbound.connectiontracking.ConnectionTracker;
  
  /**
   * MetaCallConnectionInterceptor.java handles communication with the
   * CachedConnectionManager.  On method call entry, cached handles are
   * checked for the correct Subject.  On method call exit, cached
   * handles are disassociated if possible. On getting or releasing
   * a connection the CachedConnectionManager is notified.
   *
   *
   * @version $Revision: 1.1 $ $Date: 2003/12/09 04:15:20 $
   */
  public class ConnectionTrackingInterceptor implements ConnectionInterceptor {
  
      private final ConnectionInterceptor next;
      private final String key;
      private final ConnectionTracker connectionTracker;
      private final SecurityDomain securityDomain;
  
      public ConnectionTrackingInterceptor(
              final ConnectionInterceptor next,
              final String key,
              final ConnectionTracker connectionTracker,
              final SecurityDomain securityDomain) {
          this.next = next;
          this.key = key;
          this.connectionTracker = connectionTracker;
          this.securityDomain = securityDomain;
      }
  
      public void getConnection(ConnectionInfo connectionInfo) throws ResourceException {
          next.getConnection(connectionInfo);
          connectionTracker.handleObtained(this, connectionInfo);
      }
  
      public void returnConnection(
              ConnectionInfo connectionInfo,
              ConnectionReturnAction connectionReturnAction) {
          connectionTracker.handleReleased(this, connectionInfo);
          next.returnConnection(connectionInfo, connectionReturnAction);
      }
  
      public void enter(Collection connectionInfos, Set unshareable)
              throws ResourceException {
          if (unshareable.contains(key)) {
              //should probably check to see if subjects are consistent,
              //and if not raise an exception.  Also need to check if
              //the spec says anything about this.
              return;
          }
          if (securityDomain == null) {
              return;
          }
          Subject currentSubject = null;
          try {
              currentSubject = securityDomain.getSubject();
          } catch (SecurityException e) {
              throw new ResourceException("Can not obtain Subject for login", e);
          }
          if (currentSubject == null) {
              //check to see if mci.getSubject() is null?
              return;
          }
          for (Iterator i = connectionInfos.iterator(); i.hasNext();) {
              ConnectionInfo connectionInfo = (ConnectionInfo) i.next();
              ManagedConnectionInfo originalManagedConnectionInfo = connectionInfo.getManagedConnectionInfo();
              //Is this check correct?  perhaps more credentials got
              //added without changing the relevant credential we use.
              if (!currentSubject.equals(originalManagedConnectionInfo.getSubject())) {
                  //make a ConnectionInfo to process removing the handle from the old mc
                  ConnectionInfo returningConnectionInfo = new ConnectionInfo();
                  returningConnectionInfo.setManagedConnectionInfo(originalManagedConnectionInfo);
                  //This should decrement handle count, but not close the handle, when returnConnection
is called
                  //I'm not sure how to test/assure this.
                  returningConnectionInfo.setConnectionHandle(connectionInfo.getConnectionHandle());
  
                  //make a new originalManagedConnectionInfo for the mc we will ask for
                  ManagedConnectionInfo newManagedConnectionInfo =
                          new ManagedConnectionInfo(
                                  originalManagedConnectionInfo.getManagedConnectionFactory(),
                                  originalManagedConnectionInfo.getConnectionRequestInfo());
                  newManagedConnectionInfo.setSubject(currentSubject);
                  connectionInfo.setManagedConnectionInfo(newManagedConnectionInfo);
                  next.getConnection(connectionInfo);
                  //process the removal of the handle from the previous mc
                  returnConnection(returningConnectionInfo, ConnectionReturnAction.RETURN_HANDLE);
              }
          }
  
      }
  
      public void exit(Collection connectionInfos, Set unshareableResources)
              throws ResourceException {
          if (unshareableResources.contains(key)) {
              return;
          }
          for (Iterator i = connectionInfos.iterator(); i.hasNext();) {
              ConnectionInfo connectionInfo = (ConnectionInfo) i.next();
              ManagedConnectionInfo managedConnectionInfo = connectionInfo.getManagedConnectionInfo();
              ManagedConnection managedConnection = managedConnectionInfo.getManagedConnection();
              if (managedConnection instanceof DissociatableManagedConnection) {
                  i.remove();
                  ((DissociatableManagedConnection) managedConnection).dissociateConnections();
                  managedConnectionInfo.clearConnectionHandles();
                  returnConnection(connectionInfo, ConnectionReturnAction.RETURN_HANDLE);
              }
          }
      }
  }
  
  
  
  1.1                  incubator-geronimo/modules/core/src/java/org/apache/geronimo/connector/outbound/ConnectorComponentContext.java
  
  Index: ConnectorComponentContext.java
  ===================================================================
  package org.apache.geronimo.connector.outbound;
  
  import java.util.Map;
  
  /**
   * Interface to be implemented by e.g. ejb context objects.  This is used by
   * CachedConnectionManager to store ManagedConnections for each ConnectionManager
   * used by the component.  Storing in the component context should avoid synchronization...
   * enough synchronization occurs in calling the ejb itself.
   *
   * @version $Revision: 1.1 $ $Date: 2003/12/09 04:15:20 $
   *
   * */
  public interface ConnectorComponentContext {
      /**
       * IMPORTANT INVARIANT: this should always return a map, never null.
       * @return map of ConnectionManager to (list of ) managed connection info objects.
       */
      public Map getConnectionManagerMap();
  
  }
  
  
  
  1.1                  incubator-geronimo/modules/core/src/java/org/apache/geronimo/connector/outbound/ConnectorTransactionContext.java
  
  Index: ConnectorTransactionContext.java
  ===================================================================
  package org.apache.geronimo.connector.outbound;
  
  
  
  /**
   * Interface to be implemented by TransactionContext objects so the connector framework
can
   * track ManagedConnections enrolled in a particular transaction.  This should avoid excessive
   * synchronization in the ConnectionManager code.
   *
   * This architecture assumes that a threadlocal lookup + hashmap creation + map lookup
   * is faster than synchronization + map lookup.
   *
   * The TransactionContext implementation is responsible for notifying all keys after completion.
   *
   * @version $Revision: 1.1 $ $Date: 2003/12/09 04:15:20 $
   *
   * */
  public interface ConnectorTransactionContext {
  
      void setManagedConnectionInfo(ConnectionReleaser key, ManagedConnectionInfo info);
  
      ManagedConnectionInfo getManagedConnectionInfo(ConnectionReleaser key);
  
      boolean isActive();
  
  }
  
  
  

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