| /** |
| * 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.curator.x.discovery.details; |
| |
| import com.google.common.collect.Lists; |
| import org.apache.curator.x.discovery.DownInstancePolicy; |
| import org.apache.curator.x.discovery.InstanceFilter; |
| import org.apache.curator.x.discovery.ProviderStrategy; |
| import org.apache.curator.x.discovery.ServiceProvider; |
| import org.apache.curator.x.discovery.ServiceProviderBuilder; |
| import org.apache.curator.x.discovery.strategies.RoundRobinStrategy; |
| import java.util.List; |
| import java.util.concurrent.ThreadFactory; |
| |
| /** |
| * Builder for service providers |
| */ |
| class ServiceProviderBuilderImpl<T> implements ServiceProviderBuilder<T> |
| { |
| private ServiceDiscoveryImpl<T> discovery; |
| private String serviceName; |
| private ProviderStrategy<T> providerStrategy; |
| private ThreadFactory threadFactory; |
| private List<InstanceFilter<T>> filters = Lists.newArrayList(); |
| private DownInstancePolicy downInstancePolicy = new DownInstancePolicy(); |
| |
| public ServiceProvider<T> build() |
| { |
| return new ServiceProviderImpl<T>(discovery, serviceName, providerStrategy, threadFactory, filters, downInstancePolicy); |
| } |
| |
| ServiceProviderBuilderImpl(ServiceDiscoveryImpl<T> discovery) |
| { |
| this.discovery = discovery; |
| } |
| |
| /** |
| * required - set the name of the service to be provided |
| * |
| * @param serviceName the name of the service |
| * @return this |
| */ |
| @Override |
| public ServiceProviderBuilder<T> serviceName(String serviceName) |
| { |
| this.serviceName = serviceName; |
| return this; |
| } |
| |
| /** |
| * optional - set the provider strategy. The default is {@link RoundRobinStrategy} |
| * |
| * @param providerStrategy strategy to use |
| * @return this |
| */ |
| @Override |
| public ServiceProviderBuilder<T> providerStrategy(ProviderStrategy<T> providerStrategy) |
| { |
| this.providerStrategy = providerStrategy; |
| return this; |
| } |
| |
| /** |
| * optional - the thread factory to use for creating internal threads |
| * |
| * @param threadFactory factory to use |
| * @return this |
| */ |
| @Override |
| public ServiceProviderBuilder<T> threadFactory(ThreadFactory threadFactory) |
| { |
| this.threadFactory = threadFactory; |
| return this; |
| } |
| |
| @Override |
| public ServiceProviderBuilder<T> downInstancePolicy(DownInstancePolicy downInstancePolicy) |
| { |
| this.downInstancePolicy = downInstancePolicy; |
| return this; |
| } |
| |
| @Override |
| public ServiceProviderBuilder<T> additionalFilter(InstanceFilter<T> filter) |
| { |
| filters.add(filter); |
| return this; |
| } |
| } |