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 java.net.URI;
  14 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
  15 import org.opendaylight.yangtools.yang.common.QName;
  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 final JsonWriter jsonWriter;
  30     private final NormalizedNodeStreamWriter jsonNodeStreamWriter;
  31
  32     /**
  33      * Creation of the custom JSON stream-writer.
  34      *
  35      * @param excludedQName        QName of the element that is excluded from type-check.
  36      * @param outputWriter         Output stream that is used for creation of JSON writers.
  37      * @param schemaPath           Schema-path of the {@link NormalizedNode} to be written.
  38      * @param initialNs            Initial namespace derived from schema node of the data that are serialized.
  39      * @param schemaContextHandler Handler that holds actual schema context.
  40      */
  41     JsonStreamWriterWithDisabledValidation(final QName excludedQName, final OutputStreamWriter outputWriter,
  42             final SchemaPath schemaPath, final URI initialNs, final SchemaContextHandler schemaContextHandler) {
  43         super(excludedQName);
  44         this.jsonWriter = JsonWriterFactory.createJsonWriter(outputWriter);
  45         this.jsonNodeStreamWriter = JSONNormalizedNodeStreamWriter.createExclusiveWriter(
  46                 JSONCodecFactorySupplier.RFC7951.getShared(schemaContextHandler.get()),
  47                 schemaPath, initialNs, jsonWriter);
  48     }
  49
  50     @Override
  51     protected NormalizedNodeStreamWriter delegate() {
  52         return jsonNodeStreamWriter;
  53     }
  54
  55     @Override
  56     void startLeafNodeWithDisabledValidation(final NodeIdentifier nodeIdentifier) throws IOException {
  57         jsonWriter.name(nodeIdentifier.getNodeType().getLocalName());
  58     }
  59
  60     @Override
  61     void scalarValueWithDisabledValidation(final Object value) throws IOException {
  62         jsonWriter.value(value.toString());
  63     }
  64
  65     @Override
  66     void endNodeWithDisabledValidation() {
  67         // nope
  68     }
  69 }