/*
 * Copyright (c) 2000, 2017 Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2021 Contributors to the Eclipse Foundation
 *
 * 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
 */

/*
 * %W% %G%
 */

package com.sun.messaging.jmq.jmsserver.common.handlers;

import java.util.*;
import java.io.*;
import com.sun.messaging.jmq.io.*;
import com.sun.messaging.jmq.util.DestType;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.data.PacketHandler;
import com.sun.messaging.jmq.jmsserver.core.DestinationUID;
import com.sun.messaging.jmq.jmsserver.util.BrokerException;
import com.sun.messaging.jmq.jmsserver.resources.BrokerResources;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQConnection;
import com.sun.messaging.jmq.jmsserver.service.imq.IMQBasicConnection;
import com.sun.messaging.jmq.jmsserver.plugin.spi.DestinationSpi;

/**
 * Handler class which deals with adding and removing destination from the broker
 */
public class DestinationHandler extends PacketHandler {
    private Logger logger = Globals.getLogger();
    private static boolean DEBUG = false;

    /**
     * Method to handle Destination (create or delete) messages
     */
    @Override
    public boolean handle(IMQConnection con, Packet msg) throws BrokerException {

        int status = Status.OK;
        String reason = null;

        // XXX - REVISIT 2/25/00 racer
        // do we need to create a reply packet each time ?

        Packet pkt = new Packet(con.useDirectBuffers());
        pkt.setConsumerID(msg.getConsumerID());
        Hashtable hash = new Hashtable();

        Hashtable props = null;
        try {
            props = msg.getProperties();
        } catch (Exception ex) {
            assert false;
            logger.logStack(Logger.ERROR, BrokerResources.E_INTERNAL_BROKER_ERROR, "Unable to create/destroy destination - no properties", ex);
            throw new BrokerException(
                    Globals.getBrokerResources().getString(BrokerResources.X_INTERNAL_EXCEPTION, "Can not handle create/destroy destination"));
        }

        String destination = (String) props.get("JMQDestination");

        Integer inttype = (Integer) props.get("JMQDestType");

        int type = (inttype == null) ? 0 : inttype.intValue();

        pkt.setPacketType(msg.getPacketType() + 1);
        if (msg.getPacketType() == PacketType.CREATE_DESTINATION) {

            if (DEBUG) {
                logger.log(Logger.DEBUGHIGH, "ConsumerHandler: handle() [ Received AddDestination message {0}]", msg.toString());
            }

            assert destination != null;
            assert inttype != null;

            if (con.isAdminConnection()) {
                type |= DestType.DEST_ADMIN | DestType.DEST_LOCAL | DestType.DEST_AUTO;
            }
            assert pkt.getPacketType() == PacketType.CREATE_DESTINATION_REPLY;
            try {
                DestinationSpi d = null;
                if (DestType.isTemporary(type)) {
                    // deal w/ versioning .. only store
                    // 3.5 or later
                    boolean storeTemps = con.getConnectionUID().getCanReconnect();
                    long reconnectTime = con.getReconnectInterval();
                    DestinationSpi[] ds = Globals.getCoreLifecycle().createTempDestination(con.getPartitionedStore(), destination, type, con.getConnectionUID(),
                            storeTemps, reconnectTime);
                    d = ds[0];
                    if (con.getConnectionUID().equals(d.getConnectionUID())) {
                        con.attachTempDestination(d.getDestinationUID());
                    }

                } else if (destination.startsWith(Globals.INTERNAL_PREFIX)) {
                    // do nothing
                } else if (DestinationUID.isWildcard(destination)) {
                    pkt.setWildcard(true);
                    // dont create a destination
                } else {
                    DestinationSpi[] ds = Globals.getCoreLifecycle().getDestination(con.getPartitionedStore(), destination, type, true,
                            !con.isAdminConnection());
                    d = ds[0];
                }

                hash.put("JMQDestType", Integer.valueOf(type));
                hash.put("JMQDestUID", destination);

                /*
                 * Set XML Schema validation properties
                 */
                hash.put("JMQValidateXMLSchema", Boolean.valueOf(isXMLSchemaValidationOn(d)));
                String uris = getXMLSchemaURIList(d);
                if (uris != null) {
                    hash.put("JMQXMLSchemaURIList", uris);
                }
                hash.put("JMQReloadXMLSchemaOnFailure", Boolean.valueOf(getReloadXMLSchemaOnFailure(d)));

            } catch (BrokerException ex) {
                status = ex.getStatusCode();
                reason = ex.getMessage();
                if (status != Status.CONFLICT) {
                    logger.log(Logger.WARNING, BrokerResources.W_CREATE_DEST_FAILED, destination, ex);
                } else if (DEBUG) {
                    logger.log(Logger.DEBUG, BrokerResources.W_CREATE_DEST_FAILED, destination, ex);
                }
            } catch (IOException ex) {
                status = Status.ERROR;
                reason = ex.getMessage();
                logger.log(Logger.WARNING, BrokerResources.W_CREATE_DEST_FAILED, destination, ex);
            }
        } else { // removing
            assert msg.getPacketType() == PacketType.DESTROY_DESTINATION;
            assert pkt.getPacketType() == PacketType.DESTROY_DESTINATION_REPLY;

            DestinationSpi d = null;

            try {
                DestinationUID rmuid = DestinationUID.getUID(destination, DestType.isQueue(type));

                if (destination == null) {
                    throw new BrokerException(
                            Globals.getBrokerResources().getString(BrokerResources.X_INTERNAL_EXCEPTION, "protocol error,  destination is null"),
                            Status.NOT_FOUND);
                }
                DestinationSpi[] ds = Globals.getCoreLifecycle().getDestination(con.getPartitionedStore(), rmuid);
                d = ds[0];
                assert (d != null);
                Globals.getCoreLifecycle().removeDestination(con.getPartitionedStore(), rmuid, true,
                        Globals.getBrokerResources().getString(BrokerResources.M_CLIENT_REQUEST, con.getConnectionUID()));
                con.detachTempDestination(rmuid);
            } catch (BrokerException ex) {
                status = ex.getStatusCode();
                reason = ex.getMessage();
                logger.log(Logger.WARNING, BrokerResources.W_DESTROY_DEST_FAILED, destination, ex);
            } catch (IOException ex) {
                status = Status.ERROR;
                reason = ex.getMessage();
                logger.log(Logger.WARNING, BrokerResources.W_DESTROY_DEST_FAILED, destination, ex);
            }

        }
        hash.put("JMQStatus", Integer.valueOf(status));
        if (reason != null) {
            hash.put("JMQReason", reason);
        }
        if (((IMQBasicConnection) con).getDumpPacket() || ((IMQBasicConnection) con).getDumpOutPacket()) {
            hash.put("JMQReqID", msg.getSysMessageID().toString());
        }

        pkt.setProperties(hash);
        con.sendControlMessage(pkt);
        return true;
    }

    /*
     * private String getXMLValidationPropName(DestinationSpi d) { if (d == null) { return (null); }
     *
     * String name = d.getDestinationName(), propName;
     *
     * propName = Globals.IMQ + ".validation.destination." + (d.isQueue() ? "queue" : "topic") + "." + name; return
     * (propName); }
     */

    private boolean isXMLSchemaValidationOn(DestinationSpi d) {
        if (d == null) {
            return (false);
        }

        /*
         * String propName = getXMLValidationPropName(d);
         *
         * return(Globals.getConfig().getBooleanProperty(propName));
         */

        return (d.validateXMLSchemaEnabled());
    }

    private String getXMLSchemaURIList(DestinationSpi d) {
        String ret = null;

        if (d == null) {
            return (null);
        }

        /*
         * String propName = getXMLValidationPropName(d) + ".uri";
         *
         * ret = Globals.getConfig().getProperty(propName);
         *
         * return (ret);
         */

        ret = d.getXMLSchemaUriList();

        return (ret);
    }

    private boolean getReloadXMLSchemaOnFailure(DestinationSpi d) {
        if (d == null) {
            return (false);
        }

        return (d.reloadXMLSchemaOnFailure());
    }

}
