/*
 * 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.internal.cache.execute;

import java.util.Arrays;

import org.apache.geode.cache.client.ClientCache;
import org.apache.geode.cache.client.ClientCacheFactory;
import org.apache.geode.cache.server.CacheServer;
import org.apache.geode.test.dunit.Host;
import org.apache.geode.test.dunit.VM;

/**
 * Base class for function tests that use client server. This class takes care of setting up the
 * client server topology.
 */
public abstract class FunctionServiceClientBase extends FunctionServiceBase {

  public ClientCache createServersAndClient(int numberOfServers) {
    int[] ports = new int[numberOfServers];
    Host host = Host.getHost(0);
    for (int i = 0; i < numberOfServers; i++) {
      VM vm = host.getVM(i);
      ports[i] = createServer(vm);
    }

    ClientCacheFactory clientCacheFactory = new ClientCacheFactory();
    Arrays.stream(ports).forEach(port -> {
      clientCacheFactory.addPoolServer("localhost", port);
    });
    configureClient(clientCacheFactory);
    return getClientCache(clientCacheFactory);
  }

  protected Integer createServer(final VM vm) {
    return vm.invoke(() -> {
      CacheServer server = getCache().addCacheServer();
      server.setPort(0);
      server.start();
      return server.getPort();
    });
  }

  public void configureClient(ClientCacheFactory cacheFactory) {
    // do nothing
  }
}
