content: /*
   * Copyright 2013-2023 the original author or authors.
   *
   * 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
   *
   *      https://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.alibaba.cloud.circuitbreaker.sentinel;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Optional;
  
  import com.alibaba.csp.sentinel.EntryType;
  import com.alibaba.csp.sentinel.slots.block.degrade.DegradeRule;
  
  import org.springframework.cloud.client.circuitbreaker.ConfigBuilder;
  import org.springframework.util.Assert;
  
  /**
   * @author Eric Zhao
   */
  public class SentinelConfigBuilder implements
  		ConfigBuilder<SentinelConfigBuilder.SentinelCircuitBreakerConfiguration> {
  
  	private String resourceName;
  
  	private EntryType entryType;
  
  	private List<DegradeRule> rules;
  
  	public SentinelConfigBuilder() {
  	}
  
  	public SentinelConfigBuilder(String resourceName) {
  		this.resourceName = resourceName;
  	}
  
  	public SentinelConfigBuilder resourceName(String resourceName) {
  		this.resourceName = resourceName;
  		return this;
  	}
  
  	public SentinelConfigBuilder entryType(EntryType entryType) {
  		this.entryType = entryType;
  		return this;
  	}
  
  	public SentinelConfigBuilder rules(List<DegradeRule> rules) {
  		this.rules = rules;
  		return this;
  	}
  
  	@Override
  	public SentinelCircuitBreakerConfiguration build() {
  		Assert.hasText(resourceName, "resourceName cannot be empty");
  		List<DegradeRule> rules = Optional.ofNullable(this.rules)
  				.orElse(new ArrayList<>());
  
  		EntryType entryType = Optional.ofNullable(this.entryType).orElse(EntryType.OUT);
  		return new SentinelCircuitBreakerConfiguration()
  				.setResourceName(this.resourceName).setEntryType(entryType)
  				.setRules(rules);
  	}
  
  	public static class SentinelCircuitBreakerConfiguration {
  
  		private String resourceName;
  
  		private EntryType entryType;
  
  		private List<DegradeRule> rules;
  
  		public String getResourceName() {
  			return resourceName;
  		}
  
  		public SentinelCircuitBreakerConfiguration setResourceName(String resourceName) {
  			this.resourceName = resourceName;
  			return this;
  		}
  
  		public EntryType getEntryType() {
  			return entryType;
  		}
  
  		public SentinelCircuitBreakerConfiguration setEntryType(EntryType entryType) {
  			this.entryType = entryType;
  			return this;
  		}
  
  		public List<DegradeRule> getRules() {
  			return rules;
  		}
  
  		public SentinelCircuitBreakerConfiguration setRules(List<DegradeRule> rules) {
  			this.rules = rules;
  			return this;
  		}
  
  	}
  
  }
  