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001/* 002 * #%L 003 * HAPI FHIR - Core Library 004 * %% 005 * Copyright (C) 2014 - 2024 Smile CDR, Inc. 006 * %% 007 * Licensed under the Apache License, Version 2.0 (the "License"); 008 * you may not use this file except in compliance with the License. 009 * You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 * #L% 019 */ 020package ca.uhn.fhir.parser.json; 021 022import ca.uhn.fhir.parser.DataFormatException; 023 024import java.io.IOException; 025import java.io.Reader; 026import java.io.Writer; 027 028/** 029 * This interface is the generic representation of any sort of data 030 * structure that looks and smells like JSON. These data structures 031 * can be abstractly viewed as a <code.Map</code> or <code>List</code> 032 * whose members are other Maps, Lists, or scalars (Strings, Numbers, Boolean) 033 * 034 * @author Bill.Denton 035 */ 036public interface JsonLikeStructure { 037 JsonLikeStructure getInstance(); 038 039 /** 040 * Parse the JSON document into the Json-like structure 041 * so that it can be navigated. 042 * 043 * @param theReader a <code>Reader</code> that will 044 * process the JSON input stream 045 * @throws DataFormatException when invalid JSON is received 046 */ 047 void load(Reader theReader) throws DataFormatException; 048 049 void load(Reader theReader, boolean allowArray) throws DataFormatException; 050 051 BaseJsonLikeObject getRootObject() throws DataFormatException; 052 053 BaseJsonLikeWriter getJsonLikeWriter(); 054 055 BaseJsonLikeWriter getJsonLikeWriter(Writer writer) throws IOException; 056}