com.google.gerrit.metrics.dropwizard.TimerImplN.java Source code

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Here is the source code for com.google.gerrit.metrics.dropwizard.TimerImplN.java

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// Copyright (C) 2015 The Android Open Source Project
//
// 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.

package com.google.gerrit.metrics.dropwizard;

import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.gerrit.metrics.Description;
import com.google.gerrit.metrics.Field;
import com.google.gerrit.metrics.Timer2;
import com.google.gerrit.metrics.Timer3;
import java.util.concurrent.TimeUnit;

/** Generalized implementation of N-dimensional timer metrics. */
class TimerImplN extends BucketedTimer implements BucketedMetric {
    TimerImplN(DropWizardMetricMaker metrics, String name, Description desc, Field<?>... fields) {
        super(metrics, name, desc, fields);
    }

    <F1, F2> Timer2<F1, F2> timer2() {
        return new Timer2<F1, F2>() {
            @Override
            public void record(F1 field1, F2 field2, long value, TimeUnit unit) {
                total.record(value, unit);
                forceCreate(field1, field2).record(value, unit);
            }

            @Override
            public void remove() {
                doRemove();
            }
        };
    }

    <F1, F2, F3> Timer3<F1, F2, F3> timer3() {
        return new Timer3<F1, F2, F3>() {
            @Override
            public void record(F1 field1, F2 field2, F3 field3, long value, TimeUnit unit) {
                total.record(value, unit);
                forceCreate(field1, field2, field3).record(value, unit);
            }

            @Override
            public void remove() {
                doRemove();
            }
        };
    }

    @SuppressWarnings("unchecked")
    @Override
    String name(Object key) {
        ImmutableList<Object> keyList = (ImmutableList<Object>) key;
        String[] parts = new String[fields.length];
        for (int i = 0; i < fields.length; i++) {
            Function<Object, String> fmt = (Function<Object, String>) fields[i].formatter();

            parts[i] = fmt.apply(keyList.get(i)).replace('/', '-');
        }
        return Joiner.on('/').join(parts);
    }
}