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JsonStructureBodyReader.java
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JsonStructureBodyReader.java
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/*
* Copyright (c) 2012, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.json.jaxrs1x;
import java.io.IOException;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import jakarta.json.Json;
import jakarta.json.JsonReader;
import jakarta.json.JsonReaderFactory;
import jakarta.json.JsonStructure;
import javax.ws.rs.Consumes;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.Provider;
/**
* JAX-RS MessageBodyReader for JsonStructure. This allows
* JsonStructure, JsonArray and JsonObject to be a parameter of a
* resource method.
*
* @author Jitendra Kotamraju
* @author Blaise Doughan
* @author Michal Gajdos
*/
@Provider
@Consumes({"application/json", "text/json", "*/*"})
public class JsonStructureBodyReader implements MessageBodyReader<JsonStructure> {
private final JsonReaderFactory rf = Json.createReaderFactory(null);
private static final String JSON = "json";
private static final String PLUS_JSON = "+json";
@Override
public boolean isReadable(Class<?> aClass, Type type,
Annotation[] annotations, MediaType mediaType) {
return JsonStructure.class.isAssignableFrom(aClass) && supportsMediaType(mediaType);
}
/**
* @return true for all media types of the pattern */json and
* */*+json.
*/
private static boolean supportsMediaType(final MediaType mediaType) {
return mediaType.getSubtype().equals(JSON) || mediaType.getSubtype().endsWith(PLUS_JSON);
}
@Override
public JsonStructure readFrom(Class<JsonStructure> jsonStructureClass,
Type type, Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, String> stringStringMultivaluedMap,
InputStream inputStream) throws IOException, WebApplicationException {
try (JsonReader reader = rf.createReader(inputStream)) {
return reader.read();
}
}
}