001package ca.uhn.fhir.rest.method;
002
003/*
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2016 University Health Network
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 * 
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import java.io.IOException;
024import java.io.Writer;
025
026import org.hl7.fhir.instance.model.api.IBaseResource;
027
028import ca.uhn.fhir.model.api.TagList;
029import ca.uhn.fhir.parser.IParser;
030
031/**
032 * @author Peter Van Houte
033 *
034 * @param <T> A functional class that parses an outcome
035 */
036public abstract class ParseAction<T> {
037
038    protected T theOutcome;
039    
040    protected ParseAction(T outcome) {
041        this.theOutcome = outcome;
042    }
043
044    public abstract void execute(IParser parser, Writer writer) throws IOException;
045
046    public static ParseAction<TagList> create(TagList outcome) {
047        return outcome == null ? null : new ParseAction<TagList>(outcome) {
048            @Override
049            public void execute(IParser theParser, Writer theWriter) throws IOException {
050                theParser.encodeTagListToWriter(this.theOutcome, theWriter);
051            }
052        };
053    }
054    
055    public static ParseAction<IBaseResource> create(IBaseResource outcome) {
056        return outcome == null ? null : new ParseAction<IBaseResource>(outcome) {
057            @Override
058            public void execute(IParser theParser, Writer theWriter) throws IOException {
059                theParser.encodeResourceToWriter(this.theOutcome, theWriter);
060            }
061        };
062    }
063
064}