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1   package ca.uhn.fhir.rest.api;
2   
3   /*
4    * #%L
5    * HAPI FHIR - Core Library
6    * %%
7    * Copyright (C) 2014 - 2018 University Health Network
8    * %%
9    * Licensed under the Apache License, Version 2.0 (the "License");
10   * you may not use this file except in compliance with the License.
11   * You may obtain a copy of the License at
12   * 
13   *      http://www.apache.org/licenses/LICENSE-2.0
14   * 
15   * Unless required by applicable law or agreed to in writing, software
16   * distributed under the License is distributed on an "AS IS" BASIS,
17   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18   * See the License for the specific language governing permissions and
19   * limitations under the License.
20   * #L%
21   */
22  
23  import java.util.HashMap;
24  
25  /**
26   * Represents values for "return" value as provided in the the <a href="https://tools.ietf.org/html/rfc7240#section-4.2">HTTP Prefer header</a>.
27   */
28  public enum PreferReturnEnum {
29  
30  	REPRESENTATION("representation"), MINIMAL("minimal"), OPERATION_OUTCOME("OperationOutcome");
31  
32  	private String myHeaderValue;
33  	private static HashMap<String, PreferReturnEnum> ourValues;
34  
35  	private PreferReturnEnum(String theHeaderValue) {
36  		myHeaderValue = theHeaderValue;
37  	}
38  
39  	public static PreferReturnEnum fromHeaderValue(String theHeaderValue) {
40  		if (ourValues == null) {
41  			HashMap<String, PreferReturnEnum> values = new HashMap<String, PreferReturnEnum>();
42  			for (PreferReturnEnum next : PreferReturnEnum.values()) {
43  				values.put(next.getHeaderValue(), next);
44  			}
45  			ourValues = values;
46  		}
47  		return ourValues.get(theHeaderValue);
48  	}
49  
50  	public String getHeaderValue() {
51  		return myHeaderValue;
52  	}
53  
54  }