restconf/restconf-nb/src/main/java/org/opendaylight/restconf/nb/rfc8040/jersey/providers/errors/JsonStreamWriterWithDisabledValidation.java

   1 /*
   2  * Copyright © 2019 FRINX s.r.o. All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.restconf.nb.rfc8040.jersey.providers.errors;
   9
  10 import com.google.gson.stream.JsonWriter;
  11 import java.io.IOException;
  12 import java.io.OutputStreamWriter;
  13 import org.opendaylight.restconf.server.api.DatabindContext;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.restconf.rev170126.Errors;
  15 import org.opendaylight.yangtools.yang.common.XMLNamespace;
  16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  17 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  18 import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
  19 import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
  20
  21 /**
  22  * JSON stream-writer with disabled leaf-type validation for specified QName.
  23  */
  24 final class JsonStreamWriterWithDisabledValidation extends StreamWriterWithDisabledValidation {
  25     private static final int DEFAULT_INDENT_SPACES_NUM = 2;
  26     private static final XMLNamespace IETF_RESTCONF_URI = Errors.QNAME.getModule().getNamespace();
  27
  28     private final JsonWriter jsonWriter;
  29     private final NormalizedNodeStreamWriter jsonNodeStreamWriter;
  30
  31     /**
  32      * Creation of the custom JSON stream-writer.
  33      *
  34      * @param databindContext {@link DatabindContext} to use
  35      * @param outputWriter    Output stream that is used for creation of JSON writers.
  36      */
  37     JsonStreamWriterWithDisabledValidation(final DatabindContext databindContext,
  38             final OutputStreamWriter outputWriter) {
  39         jsonWriter = JsonWriterFactory.createJsonWriter(outputWriter, DEFAULT_INDENT_SPACES_NUM);
  40         final var inference = errorsContainerInference(databindContext);
  41         jsonNodeStreamWriter = JSONNormalizedNodeStreamWriter.createExclusiveWriter(databindContext.jsonCodecs(),
  42             inference, IETF_RESTCONF_URI, jsonWriter);
  43     }
  44
  45     @Override
  46     protected NormalizedNodeStreamWriter delegate() {
  47         return jsonNodeStreamWriter;
  48     }
  49
  50     @Override
  51     void startLeafNodeWithDisabledValidation(final NodeIdentifier nodeIdentifier) throws IOException {
  52         jsonWriter.name(nodeIdentifier.getNodeType().getLocalName());
  53     }
  54
  55     @Override
  56     void scalarValueWithDisabledValidation(final Object value) throws IOException {
  57         jsonWriter.value(value.toString());
  58     }
  59
  60     @Override
  61     void endNodeWithDisabledValidation() {
  62         // nope
  63     }
  64 }