Java tutorial
/** * Copyright 2012 Netflix, 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 com.netflix.hystrix.contrib.javanica.command; import com.netflix.hystrix.HystrixCommand; import com.netflix.hystrix.HystrixCommandGroupKey; import com.netflix.hystrix.HystrixCommandKey; import com.netflix.hystrix.HystrixThreadPoolKey; import org.apache.commons.lang3.StringUtils; /** * Builder for {@link HystrixCommand.Setter}. */ public class CommandSetterBuilder { private String groupKey; private String commandKey; private String threadPoolKey; public CommandSetterBuilder groupKey(String pGroupKey) { this.groupKey = pGroupKey; return this; } public CommandSetterBuilder groupKey(String pGroupKey, String def) { this.groupKey = StringUtils.isNotEmpty(pGroupKey) ? pGroupKey : def; return this; } public CommandSetterBuilder commandKey(String pCommandKey) { this.commandKey = pCommandKey; return this; } public CommandSetterBuilder commandKey(String pCommandKey, String def) { this.commandKey = StringUtils.isNotEmpty(pCommandKey) ? pCommandKey : def; return this; } public CommandSetterBuilder threadPoolKey(String pThreadPoolKey) { this.threadPoolKey = pThreadPoolKey; return this; } /** * Creates instance of {@link HystrixCommand.Setter}. * * @return the instance of {@link HystrixCommand.Setter} */ public HystrixCommand.Setter build() { HystrixCommand.Setter setter = HystrixCommand.Setter .withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey)) .andCommandKey(HystrixCommandKey.Factory.asKey(commandKey)); if (StringUtils.isNotBlank(threadPoolKey)) { setter.andThreadPoolKey(HystrixThreadPoolKey.Factory.asKey(threadPoolKey)); } return setter; } }