1 files changed, 0 insertions, 145 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/metrics/dropwizard/BucketedCallback.java b/gerrit-server/src/main/java/com/google/gerrit/metrics/dropwizard/BucketedCallback.java
deleted file mode 100644
index c7a92a31db..0000000000
--- a/gerrit-server/src/main/java/com/google/gerrit/metrics/dropwizard/BucketedCallback.java
+++ /dev/null
@@ -1,145 +0,0 @@
-// 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.codahale.metrics.Gauge;
-import com.codahale.metrics.Metric;
-import com.codahale.metrics.MetricRegistry;
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Maps;
-import com.google.gerrit.metrics.Description;
-import com.google.gerrit.metrics.Field;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
-/** Abstract callback metric broken down into buckets. */
-abstract class BucketedCallback<V> implements BucketedMetric {
-  private final DropWizardMetricMaker metrics;
-  private final MetricRegistry registry;
-  private final String name;
-  private final Description.FieldOrdering ordering;
-  protected final Field<?>[] fields;
-  private final V zero;
-  private final Map<Object, ValueGauge> cells;
-  protected volatile Runnable trigger;
-  private final Object lock = new Object();
-
-  BucketedCallback(
-      DropWizardMetricMaker metrics,
-      MetricRegistry registry,
-      String name,
-      Class<V> valueType,
-      Description desc,
-      Field<?>... fields) {
-    this.metrics = metrics;
-    this.registry = registry;
-    this.name = name;
-    this.ordering = desc.getFieldOrdering();
-    this.fields = fields;
-    this.zero = CallbackMetricImpl0.zeroFor(valueType);
-    this.cells = new ConcurrentHashMap<>();
-  }
-
-  void doRemove() {
-    for (Object key : cells.keySet()) {
-      registry.remove(submetric(key));
-    }
-    metrics.remove(name);
-  }
-
-  void doBeginSet() {
-    for (ValueGauge g : cells.values()) {
-      g.set = false;
-    }
-  }
-
-  void doPrune() {
-    Iterator<Map.Entry<Object, ValueGauge>> i = cells.entrySet().iterator();
-    while (i.hasNext()) {
-      if (!i.next().getValue().set) {
-        i.remove();
-      }
-    }
-  }
-
-  void doEndSet() {
-    for (ValueGauge g : cells.values()) {
-      if (!g.set) {
-        g.value = zero;
-      }
-    }
-  }
-
-  ValueGauge getOrCreate(Object f1, Object f2) {
-    return getOrCreate(ImmutableList.of(f1, f2));
-  }
-
-  ValueGauge getOrCreate(Object f1, Object f2, Object f3) {
-    return getOrCreate(ImmutableList.of(f1, f2, f3));
-  }
-
-  ValueGauge getOrCreate(Object key) {
-    ValueGauge c = cells.get(key);
-    if (c != null) {
-      return c;
-    }
-
-    synchronized (lock) {
-      c = cells.get(key);
-      if (c == null) {
-        c = new ValueGauge();
-        registry.register(submetric(key), c);
-        cells.put(key, c);
-      }
-      return c;
-    }
-  }
-
-  private String submetric(Object key) {
-    return DropWizardMetricMaker.name(ordering, name, name(key));
-  }
-
-  abstract String name(Object key);
-
-  @Override
-  public Metric getTotal() {
-    return null;
-  }
-
-  @Override
-  public Field<?>[] getFields() {
-    return fields;
-  }
-
-  @Override
-  public Map<Object, Metric> getCells() {
-    return Maps.transformValues(cells, in -> (Metric) in);
-  }
-
-  final class ValueGauge implements Gauge<V> {
-    volatile V value = zero;
-    boolean set;
-
-    @Override
-    public V getValue() {
-      Runnable t = trigger;
-      if (t != null) {
-        t.run();
-      }
-      return value;
-    }
-  }
-}