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.nb.rfc8040.handlers.SchemaContextHandler;
  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.JSONCodecFactorySupplier;
  19 import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
  20 import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
  21
  22 /**
  23  * JSON stream-writer with disabled leaf-type validation for specified QName.
  24  */
  25 final class JsonStreamWriterWithDisabledValidation extends StreamWriterWithDisabledValidation {
  26     private static final int DEFAULT_INDENT_SPACES_NUM = 2;
  27     private static final XMLNamespace IETF_RESTCONF_URI = Errors.QNAME.getModule().getNamespace();
  28
  29     private final JsonWriter jsonWriter;
  30     private final NormalizedNodeStreamWriter jsonNodeStreamWriter;
  31
  32     /**
  33      * Creation of the custom JSON stream-writer.
  34      *
  35      * @param schemaContextHandler Handler that holds actual schema context.
  36      * @param outputWriter         Output stream that is used for creation of JSON writers.
  37      */
  38     JsonStreamWriterWithDisabledValidation(final SchemaContextHandler schemaContextHandler,
  39             final OutputStreamWriter outputWriter) {
  40         jsonWriter = JsonWriterFactory.createJsonWriter(outputWriter, DEFAULT_INDENT_SPACES_NUM);
  41         final var inference = errorsContainerInference(schemaContextHandler);
  42         jsonNodeStreamWriter = JSONNormalizedNodeStreamWriter.createExclusiveWriter(
  43             JSONCodecFactorySupplier.RFC7951.getShared(inference.getEffectiveModelContext()),
  44             inference, IETF_RESTCONF_URI, jsonWriter);
  45     }
  46
  47     @Override
  48     protected NormalizedNodeStreamWriter delegate() {
  49         return jsonNodeStreamWriter;
  50     }
  51
  52     @Override
  53     void startLeafNodeWithDisabledValidation(final NodeIdentifier nodeIdentifier) throws IOException {
  54         jsonWriter.name(nodeIdentifier.getNodeType().getLocalName());
  55     }
  56
  57     @Override
  58     void scalarValueWithDisabledValidation(final Object value) throws IOException {
  59         jsonWriter.value(value.toString());
  60     }
  61
  62     @Override
  63     void endNodeWithDisabledValidation() {
  64         // nope
  65     }
  66 }