| /* |
| * Copyright (c) 1998, 2020 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.internal.sessions.coordination.rmi; |
| |
| import org.eclipse.persistence.exceptions.CommunicationException; |
| import org.eclipse.persistence.sessions.coordination.Command; |
| import org.eclipse.persistence.internal.sessions.coordination.RemoteConnection; |
| import java.rmi.RemoteException; |
| |
| /** |
| * <p> |
| * <b>Purpose</b>: Define an RMI implementation class for the remote object that |
| * can execute a remote command. |
| * <p> |
| * <b>Description</b>: This implementation class is the RMI transport version of |
| * the connection that is used by the remote command manager to send remote |
| * commands. This object just wraps the RMIRemoteCommandConnection remote object |
| * |
| * @since OracleAS TopLink 10<i>g</i> (9.0.4) |
| */ |
| public class RMIRemoteConnection extends RemoteConnection { |
| RMIRemoteCommandConnection connection; |
| |
| public RMIRemoteConnection(RMIRemoteCommandConnection connection) { |
| this.connection = connection; |
| } |
| |
| /** |
| * INTERNAL: |
| * This method invokes the remote object with the Command argument, and causes |
| * it to execute the command in the remote VM. The result is currently assumed |
| * to be either null if successful, or an exception string if an exception was |
| * thrown during execution. |
| * |
| * If a RemoteException occurred then a communication problem occurred. In this |
| * case the exception will be wrapped in a CommunicationException and re-thrown. |
| */ |
| @Override |
| public Object executeCommand(Command command) throws CommunicationException { |
| try { |
| return this.connection.executeCommand(command); |
| } catch (RemoteException exception) { |
| throw CommunicationException.errorInInvocation(exception); |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| * This method invokes the remote object with the Command argument, and causes |
| * it to execute the command in the remote VM. The result is currently assumed |
| * to be either null if successful, or an exception string if an exception was |
| * thrown during execution. |
| * |
| * If a RemoteException occurred then a communication problem occurred. In this |
| * case the exception will be wrapped in a CommunicationException and re-thrown. |
| */ |
| @Override |
| public Object executeCommand(byte[] command) throws CommunicationException { |
| try { |
| return this.connection.executeCommand(command); |
| } catch (RemoteException exception) { |
| throw CommunicationException.errorInInvocation(exception); |
| } |
| } |
| |
| /** |
| * INTERNAL |
| * Return the RemoteCommandConnection associated with this RemoteConnection |
| * @return RMIRemoteCommandConnection connection |
| */ |
| public RMIRemoteCommandConnection getConnection() { |
| return this.connection; |
| } |
| |
| } |