add CircuitStateEventBusEvent.java

/*

 * Copyright 2016-2018 shardingsphere.io.

 * <p>

 * 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.

 * </p>

 */

package io.shardingsphere.core.orche.eventbus.state.circuit;

import lombok.Getter;

import lombok.RequiredArgsConstructor;

import java.util.Collection;

/**

 * JDBC circuit event bus event.

 *

 * @author panjuan

 */

@RequiredArgsConstructor

@Getter

public final class CircuitStateEventBusEvent {

    private final Collection<String> circuitBreakerDataSourceNames;

}

/*

 * Copyright 2016-2018 shardingsphere.io.

 * <p>

 * 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.

 * </p>

 */

package io.shardingsphere.core.orche.eventbus.state.circuit;

import com.google.common.eventbus.EventBus;

import lombok.AccessLevel;

import lombok.NoArgsConstructor;

/**

 * Jdbc circuit event bus instance.

 *

 * @author panjuan

 */

@NoArgsConstructor(access = AccessLevel.PRIVATE)

public final class CircuitStateEventBusInstance {

    private static final EventBus INSTANCE = new EventBus();

    /**

     * Get event bus instance.

     *

     * @return event bus instance

     */

    public static EventBus getInstance() {

        return INSTANCE;

    }

}