Examples of com.fasterxml.jackson.databind.JsonNode

com.fasterxml.jackson.databind.JsonNode
Base class for all JSON nodes, which form the basis of JSON Tree Model that Jackson implements. One way to think of these nodes is to consider them similar to DOM nodes in XML DOM trees.
As a general design rule, most accessors ("getters") are included in this base class, to allow for traversing structure without type casts. Most mutators, however, need to be accessed through specific sub-classes (such as ObjectNode and ArrayNode). This seems sensible because proper type information is generally available when building or modifying trees, but less often when reading a tree (newly built from parsed JSON content).
Actual concrete sub-classes can be found from package {@link com.fasterxml.jackson.databind.node}.

        assertThat(unwrapped).isEqualTo(node.asText());
    }


    @Test
    public void ints_are_unwrapped() {
        JsonNode node = using(JACKSON_TREE_CONFIGURATION).parse(JSON_DOCUMENT).read("$.int-max-property");
        int unwrapped = using(JACKSON_TREE_CONFIGURATION).parse(JSON_DOCUMENT).read("$.int-max-property", int.class);
        assertThat(unwrapped).isEqualTo(Integer.MAX_VALUE);
        assertThat(unwrapped).isEqualTo(node.asInt());
    }

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        assertThat(unwrapped).isEqualTo(node.asInt());
    }


    @Test
    public void longs_are_unwrapped() {
        JsonNode node = using(JACKSON_TREE_CONFIGURATION).parse(JSON_DOCUMENT).read("$.long-max-property");
        long unwrapped = using(JACKSON_TREE_CONFIGURATION).parse(JSON_DOCUMENT).read("$.long-max-property", long.class);


        assertThat(unwrapped).isEqualTo(Long.MAX_VALUE);
        assertThat(unwrapped).isEqualTo(node.asLong());
    }

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        }
        if (!(o instanceof JsonNode)) {
            return o;
        }


        JsonNode e = (JsonNode) o;


        if (e.isValueNode()) {


            if (e.isTextual()) {
                return e.asText();
            } else if (e.isBoolean()) {
                return e.asBoolean();
            } else if (e.isInt()) {
                return e.asInt();
            } else if (e.isLong()) {
                return e.asLong();
            } else if (e.isBigDecimal()) {
                return e.decimalValue();
            } else if (e.isDouble()) {
                return e.doubleValue();
            } else if (e.isFloat()) {
                return e.floatValue();
            } else if (e.isBigDecimal()) {
                return e.decimalValue();
            } else if (e.isNull()) {
                return null;
            }
        }
        return o;
    }

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    T result = mapInternalToJava(parameter, javaType);
    return result;
  }


  public <C> C mapInternalToJava(Object parameter, JavaType type) {
    JsonNode jsonNode = (JsonNode) parameter;
    ObjectMapper mapper = format.getConfiguredObjectMapper();
    try {
      return mapper.readValue(mapper.treeAsTokens(jsonNode), type);
    } catch (IOException e) {
      throw LOG.unableToDeserialize(jsonNode, type, e);

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  public SpinJsonNode element() {
    try {
      Object result = query.read(spinJsonNode.toString(), dataFormat.getJsonPathConfiguration());
      if (result != null) {
        JsonNode node = dataFormat.createJsonNode(result);
        return dataFormat.createWrapperInstance(node);
      }
      else {
        throw LOG.unableToFindJsonPath(query.getPath(), spinJsonNode.toString());
      }

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  public Integer indexOf(Object searchObject) {
    ensureNotNull("searchObject", searchObject);
    if(this.isArray()) {
      Integer i = 0;
      JsonNode node = dataFormat.createJsonNode(searchObject);
      for (Iterator<JsonNode> nodeIterator = jsonNode.elements(); nodeIterator.hasNext(); i++) {
        JsonNode n = nodeIterator.next();
        if (n.equals(node)) {
          return i;
        }
      }


      // when searchObject is not found

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  public Integer lastIndexOf(Object searchObject) {
    ensureNotNull("searchObject", searchObject);
    if(this.isArray()) {
      Integer i = 0;
      Integer j = -1;
      JsonNode node = dataFormat.createJsonNode(searchObject);
      for (Iterator<JsonNode> nodeIterator = jsonNode.elements(); nodeIterator.hasNext(); i++) {
        JsonNode n = nodeIterator.next();
        if (n.equals(node)) {
          j = i;
        }
      }


      // when searchObject is not found

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  }


  public SpinJsonNode prop(String name) {
    ensureNotNull("name", name);
    if(jsonNode.has(name)) {
      JsonNode property = jsonNode.get(name);
      return dataFormat.createWrapperInstance(property);
    } else {
      throw LOG.unableToFindProperty(name);
    }
  }

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        final String databaseName = table.getName();
        final CouchDbConnector connector = _couchDbInstance.createConnector(databaseName, false);


        final String keyString = keyValue.toString();
        final JsonNode node = connector.find(JsonNode.class, keyString);
        if (node == null) {
            return null;
        }


        return CouchDbUtils.jsonNodeToMetaModelRow(node, new SimpleDataSetHeader(selectItems));

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            close();
            return next();
        }


        final Row row = _rowIterator.next();
        final JsonNode docNode = row.getDocAsNode();
        final Map<String, Object> map = CouchDbUtils.jsonNodeToMap(docNode);
        return new Document(_databaseName, map, row);
    }

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