/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.kafka.trogdor.task;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.NullNode;

/**
 * Tracks the status of a Trogdor worker.
 */
public class AgentWorkerStatusTracker implements WorkerStatusTracker {
    private JsonNode status = NullNode.instance;

    @Override
    public void update(JsonNode newStatus) {
        JsonNode status = newStatus.deepCopy();
        synchronized (this) {
            this.status = status;
        }
    }

    /**
     * Retrieves the status.
     */
    public synchronized JsonNode get() {
        return status;
    }
}
