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Contains implementations of the clustering singleton services.

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/*
 * Copyright The WildFly Authors
 * SPDX-License-Identifier: Apache-2.0
 */
package org.wildfly.clustering.singleton.server;

import static org.jboss.logging.Logger.Level.ERROR;
import static org.jboss.logging.Logger.Level.INFO;
import static org.jboss.logging.Logger.Level.WARN;

import java.lang.invoke.MethodHandles;
import java.util.Collection;

import org.jboss.logging.BasicLogger;
import org.jboss.logging.Logger;
import org.jboss.logging.annotations.Cause;
import org.jboss.logging.annotations.LogMessage;
import org.jboss.logging.annotations.Message;
import org.jboss.logging.annotations.MessageLogger;
import org.jboss.msc.service.StartException;
import org.wildfly.clustering.server.GroupMember;

/**
 * @author Paul Ferraro
 */
@MessageLogger(projectCode = "WFLYCLSN", length = 4)
public interface SingletonLogger extends BasicLogger {
    String ROOT_LOGGER_CATEGORY = "org.wildfly.clustering.singleton.server";

    /**
     * The root logger.
     */
    SingletonLogger ROOT_LOGGER = Logger.getMessageLogger(MethodHandles.lookup(), SingletonLogger.class, ROOT_LOGGER_CATEGORY);

    @LogMessage(level = INFO)
    @Message(id = 1, value = "This node will now operate as the singleton provider of the %s service")
    void startSingleton(String service);

    @LogMessage(level = INFO)
    @Message(id = 2, value = "This node will no longer operate as the singleton provider of the %s service")
    void stopSingleton(String service);

    @LogMessage(level = INFO)
    @Message(id = 3, value = "%s elected as the singleton provider of the %s service")
    void elected(String node, String service);

    @Message(id = 4, value = "No response received from primary provider of the %s service, retrying...")
    IllegalStateException noResponseFromPrimary(String service);

    @LogMessage(level = ERROR)
    @Message(id = 5, value = "Failed to start %s service")
    void serviceStartFailed(@Cause StartException e, String service);

    @LogMessage(level = WARN)
    @Message(id = 6, value = "Failed to reach quorum of %2$d for %1$s service. No primary singleton provider will be elected.")
    void quorumNotReached(String service, int quorum);

    @LogMessage(level = INFO)
    @Message(id = 7, value = "Just reached required quorum of %2$d for %1$s service. If this cluster loses another member, no node will be chosen to provide this service.")
    void quorumJustReached(String service, int quorum);

    @Message(id = 8, value = "Detected multiple primary providers for %s service: %s")
    IllegalArgumentException multiplePrimaryProvidersDetected(String serviceName, Collection providers);

    @Message(id = 9, value = "Singleton service %s is not started.")
    IllegalStateException notStarted(String serviceName);

    @LogMessage(level = WARN)
    @Message(id = 10, value = "No node was elected as the singleton provider of the %s service")
    void noPrimaryElected(String service);

    @Message(id = 11, value = "Specified quorum %d must be greater than zero")
    IllegalArgumentException invalidQuorum(int quorum);
}