Android Open Source - spring-a-gram-android Rest Utils

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License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright 2014 Roy Clarkson//from   www. j  av  a2  s  .co  m
 *
 * 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.royclarkson.springagram;

import org.springframework.hateoas.hal.ResourceMappingJackson2HttpMessageConverter;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import java.util.Collections;

/**
 * @author Roy Clarkson
 */
class RestUtils {

  private static RestTemplate restTemplate;

  private static HttpEntity<Void> requestEntity;

  public static RestTemplate getInstance() {
    if (restTemplate == null) {
      restTemplate = new RestTemplate(Collections.<HttpMessageConverter<?>>singletonList(new ResourceMappingJackson2HttpMessageConverter()));
    }
    return restTemplate;
  }

  public static HttpEntity<Void> getRequestEntity() {
    if (requestEntity == null) {
      HttpHeaders requestHeaders = new HttpHeaders();
      requestHeaders.setAccept(Collections.singletonList(new MediaType("application", "hal+json")));
      requestEntity = new HttpEntity<Void>(requestHeaders);
    }
    return requestEntity;
  }

}

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