restconf/restconf-nb-rfc8040/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.yangtools.yang.common.QName;
  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.NormalizedNode;
  18 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  19 import org.opendaylight.yangtools.yang.data.codec.gson.JSONCodecFactorySupplier;
  20 import org.opendaylight.yangtools.yang.data.codec.gson.JSONNormalizedNodeStreamWriter;
  21 import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
  22 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  23
  24 /**
  25  * JSON stream-writer with disabled leaf-type validation for specified QName.
  26  */
  27 final class JsonStreamWriterWithDisabledValidation extends StreamWriterWithDisabledValidation {
  28
  29     private static final int DEFAULT_INDENT_SPACES_NUM = 2;
  30
  31     private final JsonWriter jsonWriter;
  32     private final NormalizedNodeStreamWriter jsonNodeStreamWriter;
  33
  34     /**
  35      * Creation of the custom JSON stream-writer.
  36      *
  37      * @param excludedQName        QName of the element that is excluded from type-check.
  38      * @param outputWriter         Output stream that is used for creation of JSON writers.
  39      * @param schemaPath           Schema-path of the {@link NormalizedNode} to be written.
  40      * @param initialNs            Initial namespace derived from schema node of the data that are serialized.
  41      * @param schemaContextHandler Handler that holds actual schema context.
  42      */
  43     JsonStreamWriterWithDisabledValidation(final QName excludedQName, final OutputStreamWriter outputWriter,
  44             final SchemaPath schemaPath, final XMLNamespace initialNs,
  45             final SchemaContextHandler schemaContextHandler) {
  46         super(excludedQName);
  47         this.jsonWriter = JsonWriterFactory.createJsonWriter(outputWriter, DEFAULT_INDENT_SPACES_NUM);
  48         this.jsonNodeStreamWriter = JSONNormalizedNodeStreamWriter.createExclusiveWriter(
  49                 JSONCodecFactorySupplier.RFC7951.getShared(schemaContextHandler.get()),
  50                 schemaPath, initialNs, jsonWriter);
  51     }
  52
  53     @Override
  54     protected NormalizedNodeStreamWriter delegate() {
  55         return jsonNodeStreamWriter;
  56     }
  57
  58     @Override
  59     void startLeafNodeWithDisabledValidation(final NodeIdentifier nodeIdentifier) throws IOException {
  60         jsonWriter.name(nodeIdentifier.getNodeType().getLocalName());
  61     }
  62
  63     @Override
  64     void scalarValueWithDisabledValidation(final Object value) throws IOException {
  65         jsonWriter.value(value.toString());
  66     }
  67
  68     @Override
  69     void endNodeWithDisabledValidation() {
  70         // nope
  71     }
  72 }