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Spring Boot Actuator for QuickFIX/J

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/*
 * Copyright 2017-2020 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.allune.quickfixj.spring.boot.actuate.endpoint;

import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
import quickfix.ConfigError;
import quickfix.Connector;
import quickfix.SessionID;
import quickfix.SessionSettings;

import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import static quickfix.SessionID.NOT_SET;

/**
 * Base class for QuickFIX/J {@link Endpoint}s.
 *
 * @author Eduardo Sanchez-Ros
 */
public class AbstractQuickFixJEndpoint {

	private final Connector connector;

	private final SessionSettings sessionSettings;

	AbstractQuickFixJEndpoint(Connector connector, SessionSettings sessionSettings) {
		this.connector = connector;
		this.sessionSettings = sessionSettings;
	}

	@ReadOperation
	public Map readProperties() {
		Map reports = new HashMap<>();
		connector.getSessions().forEach(sessionId -> {
			try {
				Properties p = new Properties();
				p.putAll(sessionSettings.getDefaultProperties());
				p.putAll(sessionSettings.getSessionProperties(sessionId));
				p.putAll(addSessionIdProperties(sessionId));

				reports.put(sessionId.toString(), p);
			} catch (ConfigError e) {
				throw new IllegalStateException(e);
			}
		});
		return reports;
	}

	private Properties addSessionIdProperties(SessionID sessionID) {
		Properties properties = new Properties();
		properties.put("BeginString", sessionID.getBeginString());
		properties.put("SenderCompID", sessionID.getSenderCompID());
		String senderSubID = sessionID.getSenderSubID();
		if (!senderSubID.equals(NOT_SET)) {
			properties.put("SenderSubID", senderSubID);
		}
		String senderLocationID = sessionID.getSenderLocationID();
		if (!senderLocationID.equals(NOT_SET)) {
			properties.put("SenderLocationID", senderLocationID);
		}
		properties.put("TargetCompID", sessionID.getTargetCompID());
		String targetSubID = sessionID.getTargetSubID();
		if (!targetSubID.equals(NOT_SET)) {
			properties.put("TargetSubID", targetSubID);
		}
		String targetLocationID = sessionID.getTargetLocationID();
		if (!targetLocationID.equals(NOT_SET)) {
			properties.put("TargetLocationID", targetLocationID);
		}
		String sessionQualifier = sessionID.getSessionQualifier();
		if (!sessionQualifier.equals(NOT_SET)) {
			properties.put("Qualifier", sessionQualifier);
		}

		return properties;
	}
}