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/*******************************************************************************
 * Copyright (c) quickfixj.org  All rights reserved.
 *
 * This file is part of the QuickFIX/J FIX Engine
 *
 * This file may be distributed under the terms of the quickfixj.org
 * license as defined by quickfixj.org and appearing in the file
 * LICENSE included in the packaging of this file.
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
 * THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE.
 *
 * See http://www.quickfixj.org/LICENSE for licensing information.
 *
 ******************************************************************************/

package org.quickfixj.jmx.mbean.session;

import org.quickfixj.jmx.JmxExporter;
import org.quickfixj.jmx.mbean.ObjectNameFactory;
import quickfix.ConfigError;
import quickfix.Session;
import quickfix.SessionID;
import quickfix.SessionSettings;

import javax.management.JMException;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;

import static quickfix.SessionID.NOT_SET;

public class SessionJmxExporter {
    private final Map sessionObjectNames = new HashMap<>();

    public ObjectName register(JmxExporter jmxExporter, Session session, ObjectName connectorName,
            SessionSettings settings) throws JMException, ConfigError {
        ObjectNameFactory settingsNameFactory = new ObjectNameFactory();
        settingsNameFactory.addProperty("type", "Settings");
        addSessionIdProperties(session.getSessionID(), settingsNameFactory);
        ObjectName settingsName = settingsNameFactory.createName();
        jmxExporter.registerMBean(new SessionSettingsAdmin(session.getSessionID(), settings),
                settingsName);

        ObjectName sessionName = createSessionName(session.getSessionID());
        sessionObjectNames.put(session.getSessionID(), sessionName);
        SessionAdmin sessionAdmin = new SessionAdmin(session, connectorName, settingsName);
        session.addStateListener(sessionAdmin);
        jmxExporter.registerMBean(sessionAdmin, sessionName);
        return sessionName;
    }

    public ObjectName getSessionName(SessionID sessionID) {
        return sessionObjectNames.get(sessionID);
    }

    public ObjectName createSessionName(SessionID sessionID) throws MalformedObjectNameException {
        TreeMap properties = new TreeMap<>();
        properties.put("type", "Session");
        ObjectNameFactory nameFactory = new ObjectNameFactory();
        nameFactory.addProperty("type", "Session");
        addSessionIdProperties(sessionID, nameFactory);
        return nameFactory.createName();
    }

    private void addSessionIdProperties(SessionID sessionID, ObjectNameFactory nameFactory) {
        nameFactory.addProperty("beginString", sessionID.getBeginString());
        nameFactory.addProperty("senderCompID", sessionID.getSenderCompID());
        optionallyAddProperty(nameFactory, "senderSubID", sessionID.getSenderSubID());
        optionallyAddProperty(nameFactory, "senderLocationID", sessionID.getSenderLocationID());
        nameFactory.addProperty("targetCompID", sessionID.getTargetCompID());
        optionallyAddProperty(nameFactory, "targetSubID", sessionID.getTargetSubID());
        optionallyAddProperty(nameFactory, "targetLocationID", sessionID.getTargetLocationID());
        optionallyAddProperty(nameFactory, "qualifier", sessionID.getSessionQualifier());
    }

    private void optionallyAddProperty(ObjectNameFactory nameFactory, String key, String value) {
        if (!value.equals(NOT_SET)) {
            nameFactory.addProperty(key, value);
        }
    }

}