vespaclient-core/src/main/java/com/yahoo/feedhandler/NullFeedMetric.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.feedhandler;

import com.yahoo.jdisc.Metric;
import java.util.Map;

/**
 * @author <a href="mailto:einarmr@yahoo-inc.com">Einar M R Rosenvinge</a>
 * @since 5.1.20
 */
public final class NullFeedMetric implements Metric {
    @Override
    public void set(String key, Number val, Context ctx) {
    }

    @Override
    public void add(String key, Number val, Context ctx) {
    }

    @Override
    public Context createContext(Map<String, ?> properties) {
        return NullFeedContext.INSTANCE;
    }

    private static class NullFeedContext implements Context {
        private static final NullFeedContext INSTANCE = new NullFeedContext();
    }
}