org.ehcache.clustered.server.management.ServerStoreSettingsManagementProvider Maven / Gradle / Ivy

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/*
 * Copyright Terracotta, Inc.
 *
 * 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 org.ehcache.clustered.server.management;

import org.ehcache.clustered.common.PoolAllocation;
import org.ehcache.clustered.server.ServerSideServerStore;
import org.terracotta.management.model.capabilities.descriptors.Descriptor;
import org.terracotta.management.model.capabilities.descriptors.Settings;
import org.terracotta.management.model.context.Context;
import org.terracotta.management.registry.Named;
import org.terracotta.management.registry.RequiredContext;
import org.terracotta.management.service.monitoring.registry.provider.AliasBindingManagementProvider;
import org.terracotta.offheapstore.MapInternals;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;

@Named("ServerStoreSettings")
@RequiredContext({@Named("consumerId"), @Named("type"), @Named("alias")})
class ServerStoreSettingsManagementProvider extends AliasBindingManagementProvider {

  private final String clusterTierManagerIdentifier;
  private final String defaultServerResource;

  ServerStoreSettingsManagementProvider(String clusterTierManagerIdentifier, String defaultServerResource) {
    super(ServerStoreBinding.class);
    this.clusterTierManagerIdentifier = clusterTierManagerIdentifier;
    this.defaultServerResource = defaultServerResource;
  }

  @Override
  public Collection getDescriptors() {
    Collection descriptors = new ArrayList<>(super.getDescriptors());
    descriptors.add(new Settings()
      .set("type", getCapabilityName())
      .set("clusterTierManager", clusterTierManagerIdentifier)
      .set("time", System.currentTimeMillis())
      .set("defaultServerResource", defaultServerResource));
    return descriptors;
  }

  @Override
  protected ExposedServerStoreBinding internalWrap(Context context, ServerStoreBinding managedObject) {
    if (defaultServerResource != null) {
      context = context.with("defaultServerResource", defaultServerResource);
    }
    return new ExposedServerStoreBinding(context, managedObject);
  }

  private static class ExposedServerStoreBinding extends ExposedAliasBinding {

    ExposedServerStoreBinding(Context context, ServerStoreBinding binding) {
      super(context.with("type", "ServerStore"), binding);
    }

    @Override
    public Collection getDescriptors() {
      return Collections.singleton(getSettings());
    }

    Settings getSettings() {
      // names taken from ServerStoreConfiguration.isCompatible()
      ServerSideServerStore value = getBinding().getValue();
      PoolAllocation poolAllocation = value.getStoreConfiguration().getPoolAllocation();
      Settings settings = new Settings(getContext())
        .set("resourcePoolType", poolAllocation.getClass().getSimpleName().toLowerCase());
      if (value instanceof MapInternals) {
        MapInternals internals = (MapInternals) value;
        settings.set("allocatedMemoryAtTime", internals.getAllocatedMemory())
          .set("tableCapacityAtTime", internals.getTableCapacity())
          .set("vitalMemoryAtTime", internals.getVitalMemory())
          .set("longSizeAtTime", internals.getSize())
          .set("dataAllocatedMemoryAtTime", internals.getDataAllocatedMemory())
          .set("dataOccupiedMemoryAtTime", internals.getDataOccupiedMemory())
          .set("dataSizeAtTime", internals.getDataSize())
          .set("dataVitalMemoryAtTime", internals.getDataVitalMemory());
      }
      if (poolAllocation instanceof PoolAllocation.DedicatedPoolAllocation) {
        String resourceName = ((PoolAllocation.DedicatedPoolAllocation) poolAllocation).getResourceName();
        settings.set("resourcePoolDedicatedResourceName", resourceName != null ? resourceName : settings.getString("defaultServerResource"));
        settings.set("resourcePoolDedicatedSize", ((PoolAllocation.DedicatedPoolAllocation) poolAllocation).getSize());
      } else if (poolAllocation instanceof PoolAllocation.SharedPoolAllocation) {
        settings.set("resourcePoolSharedPoolName", ((PoolAllocation.SharedPoolAllocation) poolAllocation).getResourcePoolName());
      }
      return settings;
    }
  }

}