/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. 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.logstash.common;

import co.elastic.logstash.api.DeadLetterQueueWriter;
import co.elastic.logstash.api.Event;
import co.elastic.logstash.api.Plugin;

import java.io.IOException;

public class NullDeadLetterQueueWriter implements DeadLetterQueueWriter {
    private static final NullDeadLetterQueueWriter INSTANCE = new NullDeadLetterQueueWriter();

    private NullDeadLetterQueueWriter() {
    }

    public static NullDeadLetterQueueWriter getInstance() {
        return INSTANCE;
    }

    @Override
    public void writeEntry(Event event, Plugin plugin, String reason) throws IOException {
        // no-op
    }

    @Override
    public boolean isOpen() {
        return false;
    }

    @Override
    public long getCurrentQueueSize() {
        return 0;
    }
}
