Java tutorial
/* * Copyright (c) 2016 Uber Technologies, Inc. (streaming-core@uber.com) * * 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.uber.stream.kafka.mirrormaker.controller.utils; import org.apache.commons.lang.StringUtils; import org.restlet.Request; import org.restlet.data.MediaType; import org.restlet.data.Method; import com.uber.stream.kafka.mirrormaker.controller.core.TopicPartition; public class ControllerRequestURLBuilder { private final String _baseUrl; private ControllerRequestURLBuilder(String baseUrl) { _baseUrl = baseUrl; } public static ControllerRequestURLBuilder baseUrl(String baseUrl) { return new ControllerRequestURLBuilder(baseUrl); } public Request getTopicExternalViewRequestUrl(String topic) { String requestUrl = StringUtils.join(new String[] { _baseUrl, "/topics/", topic }); Request request = new Request(Method.GET, requestUrl); return request; } public Request getTopicDeleteRequestUrl(String topic) { String requestUrl = StringUtils.join(new String[] { _baseUrl, "/topics/", topic }); Request request = new Request(Method.DELETE, requestUrl); return request; } public Request getTopicCreationRequestUrl(String topic, int numPartitions) { Request request = new Request(Method.POST, _baseUrl + "/topics/"); TopicPartition topicPartitionInfo = new TopicPartition(topic, numPartitions); request.setEntity(topicPartitionInfo.toJSON().toJSONString(), MediaType.APPLICATION_JSON); return request; } public Request getTopicExpansionRequestUrl(String topic, int numPartitions) { Request request = new Request(Method.PUT, _baseUrl + "/topics/"); TopicPartition topicPartitionInfo = new TopicPartition(topic, numPartitions); request.setEntity(topicPartitionInfo.toJSON().toJSONString(), MediaType.APPLICATION_JSON); return request; } }