org.apache.geode.management.internal.configuration.functions.RegionsWithDataOnServerFunction Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of geode-core Show documentation

Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing

There is a newer version: 1.15.1

Show newest version

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The ASF licenses this file to You 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.apache.geode.management.internal.configuration.functions;

import static java.util.stream.Collectors.toSet;

import org.apache.geode.cache.execute.Function;
import org.apache.geode.cache.execute.FunctionContext;
import org.apache.geode.internal.InternalEntity;
import org.apache.geode.internal.cache.GemFireCacheImpl;
import org.apache.geode.internal.cache.LocalRegion;

import java.util.Set;

public class RegionsWithDataOnServerFunction implements Function, InternalEntity {
  @Override
  public void execute(FunctionContext context) {
    GemFireCacheImpl cache = GemFireCacheImpl.getInstance();

    Set nonEmptyRegions = cache.getApplicationRegions().stream()
        .filter(region -> !region.isEmpty()).map(LocalRegion::getName).collect(toSet());

    context.getResultSender().lastResult(nonEmptyRegions);
  }

  @Override
  public String getId() {
    return RegionsWithDataOnServerFunction.class.getName();
  }

}