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/* * @(#)RMIJRMPServerImpl.java 1.28 05/11/17 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.management.remote.rmi; import java.io.IOException; import java.rmi.NoSuchObjectException; import java.rmi.Remote; import java.rmi.RemoteException; import java.rmi.server.RMIClientSocketFactory; import java.rmi.server.RMIServerSocketFactory; import java.rmi.server.UnicastRemoteObject; import java.rmi.server.RemoteObject; import java.util.Map; import java.util.Collections; import javax.security.auth.Subject; import com.sun.jmx.remote.internal.RMIExporter; /** * <p>An {@link RMIServer} object that is exported through JRMP and that * creates client connections as RMI objects exported through JRMP. * User code does not usually reference this class directly.</p> * * @see RMIServerImpl * * @since 1.5 * @since.unbundled 1.0 */ public class RMIJRMPServerImpl extends RMIServerImpl { /** * <p>Creates a new {@link RMIServer} object that will be exported * on the given port using the given socket factories.</p> * * @param port the port on which this object and the {@link * RMIConnectionImpl} objects it creates will be exported. Can be * zero, to indicate any available port. * * @param csf the client socket factory for the created RMI * objects. Can be null. * * @param ssf the server socket factory for the created RMI * objects. Can be null. * * @param env the environment map. Can be null. * * @exception IOException if the {@link RMIServer} object * cannot be created. * * @exception IllegalArgumentException if <code>port</code> is * negative. */ public RMIJRMPServerImpl(int port, RMIClientSocketFactory csf, RMIServerSocketFactory ssf, Map<String,?> env) throws IOException { super(env); if (port < 0) throw new IllegalArgumentException("Negative port: " + port); this.port = port; this.csf = csf; this.ssf = ssf; this.env = (env == null) ? Collections.EMPTY_MAP : env; } protected void export() throws IOException { export(this); } private void export(Remote obj) throws RemoteException { RMIExporter exporter = (RMIExporter) env.get(RMIExporter.EXPORTER_ATTRIBUTE); if (exporter == null) UnicastRemoteObject.exportObject(obj, port, csf, ssf); else exporter.exportObject(obj, port, csf, ssf); } private void unexport(Remote obj, boolean force) throws NoSuchObjectException { RMIExporter exporter = (RMIExporter) env.get(RMIExporter.EXPORTER_ATTRIBUTE); if (exporter == null) UnicastRemoteObject.unexportObject(obj, force); else exporter.unexportObject(obj, force); } protected String getProtocol() { return "rmi"; } /** * <p>Returns a serializable stub for this {@link RMIServer} object.</p> * * @return a serializable stub. * * @exception IOException if the stub cannot be obtained - e.g the * RMIJRMPServerImpl has not been exported yet. */ public Remote toStub() throws IOException { return RemoteObject.toStub(this); } /** * <p>Creates a new client connection as an RMI object exported * through JRMP. The port and socket factories for the new * {@link RMIConnection} object are the ones supplied * to the <code>RMIJRMPServerImpl</code> constructor.</p> * * @param connectionId the ID of the new connection. Every * connection opened by this connector server will have a * different id. The behavior is unspecified if this parameter is * null. * * @param subject the authenticated subject. Can be null. * * @return the newly-created <code>RMIConnection</code>. * * @exception IOException if the new {@link RMIConnection} * object cannot be created or exported. */ protected RMIConnection makeClient(String connectionId, Subject subject) throws IOException { if (connectionId == null) throw new NullPointerException("Null connectionId"); RMIConnection client = new RMIConnectionImpl(this, connectionId, getDefaultClassLoader(), subject, env); export(client); return client; } protected void closeClient(RMIConnection client) throws IOException { unexport(client, true); } /** * <p>Called by {@link #close()} to close the connector server by * unexporting this object. After returning from this method, the * connector server must not accept any new connections.</p> * * @exception IOException if the attempt to close the connector * server failed. */ protected void closeServer() throws IOException { unexport(this, true); } private final int port; private final RMIClientSocketFactory csf; private final RMIServerSocketFactory ssf; private final Map env; }