1 files changed, 0 insertions, 103 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/cache/CacheMetrics.java b/gerrit-server/src/main/java/com/google/gerrit/server/cache/CacheMetrics.java
deleted file mode 100644
index 11f20346c2..0000000000
--- a/gerrit-server/src/main/java/com/google/gerrit/server/cache/CacheMetrics.java
+++ /dev/null
@@ -1,103 +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.server.cache;
-
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheStats;
-import com.google.common.collect.ImmutableSet;
-import com.google.gerrit.extensions.registration.DynamicMap;
-import com.google.gerrit.metrics.CallbackMetric;
-import com.google.gerrit.metrics.CallbackMetric1;
-import com.google.gerrit.metrics.Description;
-import com.google.gerrit.metrics.Field;
-import com.google.gerrit.metrics.MetricMaker;
-import com.google.inject.Inject;
-import com.google.inject.Singleton;
-import java.util.Set;
-
-@Singleton
-public class CacheMetrics {
-  @Inject
-  public CacheMetrics(MetricMaker metrics, DynamicMap<Cache<?, ?>> cacheMap) {
-    Field<String> F_NAME = Field.ofString("cache_name");
-
-    CallbackMetric1<String, Long> memEnt =
-        metrics.newCallbackMetric(
-            "caches/memory_cached",
-            Long.class,
-            new Description("Memory entries").setGauge().setUnit("entries"),
-            F_NAME);
-    CallbackMetric1<String, Double> memHit =
-        metrics.newCallbackMetric(
-            "caches/memory_hit_ratio",
-            Double.class,
-            new Description("Memory hit ratio").setGauge().setUnit("percent"),
-            F_NAME);
-    CallbackMetric1<String, Long> memEvict =
-        metrics.newCallbackMetric(
-            "caches/memory_eviction_count",
-            Long.class,
-            new Description("Memory eviction count").setGauge().setUnit("evicted entries"),
-            F_NAME);
-    CallbackMetric1<String, Long> perDiskEnt =
-        metrics.newCallbackMetric(
-            "caches/disk_cached",
-            Long.class,
-            new Description("Disk entries used by persistent cache").setGauge().setUnit("entries"),
-            F_NAME);
-    CallbackMetric1<String, Double> perDiskHit =
-        metrics.newCallbackMetric(
-            "caches/disk_hit_ratio",
-            Double.class,
-            new Description("Disk hit ratio for persistent cache").setGauge().setUnit("percent"),
-            F_NAME);
-
-    Set<CallbackMetric<?>> cacheMetrics =
-        ImmutableSet.<CallbackMetric<?>>of(memEnt, memHit, memEvict, perDiskEnt, perDiskHit);
-
-    metrics.newTrigger(
-        cacheMetrics,
-        () -> {
-          for (DynamicMap.Entry<Cache<?, ?>> e : cacheMap) {
-            Cache<?, ?> c = e.getProvider().get();
-            String name = metricNameOf(e);
-            CacheStats cstats = c.stats();
-            memEnt.set(name, c.size());
-            memHit.set(name, cstats.hitRate() * 100);
-            memEvict.set(name, cstats.evictionCount());
-            if (c instanceof PersistentCache) {
-              PersistentCache.DiskStats d = ((PersistentCache) c).diskStats();
-              perDiskEnt.set(name, d.size());
-              perDiskHit.set(name, hitRatio(d));
-            }
-          }
-          cacheMetrics.forEach(CallbackMetric::prune);
-        });
-  }
-
-  private static double hitRatio(PersistentCache.DiskStats d) {
-    if (d.requestCount() <= 0) {
-      return 100;
-    }
-    return ((double) d.hitCount() / d.requestCount() * 100);
-  }
-
-  private static String metricNameOf(DynamicMap.Entry<Cache<?, ?>> e) {
-    if ("gerrit".equals(e.getPluginName())) {
-      return e.getExportName();
-    }
-    return String.format("plugin/%s/%s", e.getPluginName(), e.getExportName());
-  }
-}