2 * Copyright (c) 2023 PANTHEON.tech, s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.restconf.openapi.jaxrs;
10 import com.fasterxml.jackson.core.JsonGenerator;
11 import java.io.ByteArrayOutputStream;
12 import java.io.IOException;
13 import java.io.OutputStream;
14 import java.lang.annotation.Annotation;
15 import java.lang.reflect.Type;
16 import javax.ws.rs.Produces;
17 import javax.ws.rs.core.MediaType;
18 import javax.ws.rs.core.MultivaluedMap;
19 import javax.ws.rs.ext.MessageBodyWriter;
20 import javax.ws.rs.ext.Provider;
21 import org.opendaylight.restconf.openapi.model.OpenApiEntity;
24 * A {@link MessageBodyWriter} capable of turning {@link OpenApiEntity} objects into JSON body.
27 @Produces(MediaType.APPLICATION_JSON)
28 public final class OpenApiBodyWriter implements MessageBodyWriter<OpenApiEntity> {
29 private final JsonGenerator generator;
30 private final ByteArrayOutputStream stream;
32 public OpenApiBodyWriter(final JsonGenerator generator, final ByteArrayOutputStream stream) {
33 this.generator = generator;
38 public boolean isWriteable(final Class<?> type, final Type genericType, final Annotation[] annotations,
39 final MediaType mediaType) {
40 return OpenApiEntity.class.isAssignableFrom(type);
44 public void writeTo(final OpenApiEntity entity, final Class<?> type, final Type genericType,
45 final Annotation[] annotations, final MediaType mediaType, final MultivaluedMap<String, Object> httpHeaders,
46 final OutputStream entityStream) throws IOException {
47 entity.generate(generator);
51 public byte[] readFrom() {
52 final var bytes = stream.toByteArray();