com.sun.enterprise.naming.impl.SerialInitContextFactory Maven / Gradle / Ivy

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/*
 * Copyright (c) 2022 Contributors to the Eclipse Foundation
 * Copyright (c) 2008, 2018 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.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.enterprise.naming.impl;

import java.util.Hashtable;
import java.util.List;
import java.util.logging.Level;

import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.spi.InitialContextFactory;
import javax.naming.spi.NamingManager;

import org.glassfish.api.naming.NamingClusterInfo;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.internal.api.Globals;
import org.glassfish.internal.api.ORBLocator;
import org.omg.CORBA.ORB;

import static com.sun.enterprise.naming.util.LogFacade.logger;
import static org.glassfish.api.naming.NamingClusterInfo.CORBALOC;
import static org.glassfish.api.naming.NamingClusterInfo.IIOP_ENDPOINTS_PROPERTY;
import static org.glassfish.api.naming.NamingClusterInfo.IIOP_URL;
import static org.glassfish.api.naming.NamingClusterInfo.IIOP_URL_PROPERTY;
import static org.glassfish.api.naming.NamingClusterInfo.LOAD_BALANCING_PROPERTY;

public class SerialInitContextFactory implements InitialContextFactory {

    private static volatile boolean initialized;
    private static String defaultHost;
    private static String defaultPort;
    private static ServiceLocator defaultServices;

    private final ServiceLocator services;

    static void setDefaultHost(String host) {
        defaultHost = host;
    }

    static void setDefaultPort(String port) {
        defaultPort = port;
    }

    static void setDefaultServices(ServiceLocator h) {
        defaultServices = h;
    }

    static ServiceLocator getDefaultServices() {
        return defaultServices;
    }


    private boolean propertyIsSet(Hashtable env, String pname) {
        String value = getEnvSysProperty(env, pname);
        return value != null && !value.isEmpty();
    }


    private String getEnvSysProperty(Hashtable env, String pname) {
        String value = (String) env.get(pname);
        if (value == null) {
            value = System.getProperty(pname);
        }
        return value;
    }


    private String getCorbalocURL(final List list) {
        final StringBuilder sb = new StringBuilder();
        boolean first = true;
        for (String str : list) {
            if (first) {
                first = false;
                sb.append(CORBALOC);
            } else {
                sb.append(',');
            }

            sb.append(IIOP_URL);
            sb.append(str.trim());
        }
        return sb.toString();
    }


    public SerialInitContextFactory() {
        // Issue 14396
        ServiceLocator temp = defaultServices;
        if (temp == null) {
            temp = Globals.getDefaultHabitat();
        }
        if (temp == null) {
            // May need to initialize hk2 component model in standalone client
            temp = Globals.getStaticHabitat();
        }
        services = temp;
    }


    private ORB getORB() {
        if (services != null) {
            ORBLocator orbLocator = services.getService(ORBLocator.class);
            if (orbLocator != null) {
                return orbLocator.getORB();
            }
        }

        throw new RuntimeException("Could not get ORB");
    }


    /**
     * Create the InitialContext object.
     */
    @Override
    public Context getInitialContext(Hashtable env) throws NamingException {
        logger.log(Level.FINE, "getInitialContext(env={0})", env);
        // We are adding string keys, but we can get any hashtable -> no generics.
        final Hashtable myEnv = env == null ? new Hashtable<>() : env;
        boolean useLB = propertyIsSet(myEnv, IIOP_ENDPOINTS_PROPERTY) || propertyIsSet(myEnv, LOAD_BALANCING_PROPERTY);
        NamingClusterInfo namingClusterInfo = null;


        if (useLB)  {
            if (!initialized) {
                synchronized (SerialInitContextFactory.class) {
                    if (!initialized) {
                        namingClusterInfo = services.getService(NamingClusterInfo.class);
                        namingClusterInfo.initGroupInfoService(myEnv, defaultHost, defaultPort, getORB(), services);
                        initialized = true;
                    }
                }
            }
            // If myEnv already contains the IIOP_URL, don't get a new one:
            // this getInitialContext call came from an internal
            // new InitialContext call.
            if (!myEnv.containsKey(IIOP_URL_PROPERTY)) {
                Context ctx = SerialContext.getStickyContext();
                if (ctx != null) {
                    return ctx;
                }

                if (namingClusterInfo == null) {
                    namingClusterInfo = services.getService(NamingClusterInfo.class);
                }

                List rrList = namingClusterInfo.getNextRotation();
                logger.log(Level.FINE, "getInitialContext: RoundRobinPolicy list = {0}", rrList);
                myEnv.put(IIOP_URL_PROPERTY, getCorbalocURL(rrList));
            }

            myEnv.put(ORBLocator.JNDI_CORBA_ORB_PROPERTY, getORB());
        } else {
            if (defaultHost != null) {
                myEnv.put(ORBLocator.OMG_ORB_INIT_HOST_PROPERTY, defaultHost);
            }

            if (defaultPort != null) {
                myEnv.put(ORBLocator.OMG_ORB_INIT_PORT_PROPERTY, defaultPort);
            }
        }

        return createInitialContext(myEnv);
    }


    private Context createInitialContext(Hashtable env) throws NamingException {
        SerialContext serialContext = new SerialContext(env, services);
        if (NamingManager.hasInitialContextFactoryBuilder()) {
            // When builder is used, JNDI does not go through
            // URL Context discovery anymore. To address that
            // we install a wrapper that first goes through
            // URL context discovery and then falls back to
            // serialContext.
            return new WrappedSerialContext(env, serialContext);
        }
        return serialContext;
    }
}