Java tutorial
/* * Copyright 2014-2015 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 * * 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.springframework.restdocs.hypermedia; import java.io.IOException; import java.util.List; import java.util.Map; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.restdocs.operation.OperationResponse; /** * Abstract base class for a {@link LinkExtractor} that extracts links from JSON. * * @author Andy Wilkinson */ abstract class AbstractJsonLinkExtractor implements LinkExtractor { private final ObjectMapper objectMapper = new ObjectMapper(); @Override @SuppressWarnings("unchecked") public Map<String, List<Link>> extractLinks(OperationResponse response) throws IOException { Map<String, Object> jsonContent = this.objectMapper.readValue(response.getContent(), Map.class); return extractLinks(jsonContent); } protected abstract Map<String, List<Link>> extractLinks(Map<String, Object> json); }