本文整理了Java中com.fasterxml.jackson.databind.JsonNode.size()方法的一些代码示例，展示了JsonNode.size()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JsonNode.size()方法的具体详情如下：
包路径：com.fasterxml.jackson.databind.JsonNode
类名称：JsonNode
方法名：size

JsonNode.size介绍

[英]Method that returns number of child nodes this node contains: for Array nodes, number of child elements, for Object nodes, number of fields, and for all other nodes 0.
[中]方法返回此节点包含的子节点数：对于数组节点，子元素数，对象节点，字段数，以及所有其他节点0。

代码示例

代码示例来源：origin: apache/incubator-pinot

private static List<Object> jsonArrayToList(JsonNode jsonArray) {
 List<Object> list = new ArrayList<>();
 for (int i = 0; i < jsonArray.size(); ++i) {
  list.add(jsonArray.get(i));
 }
 return list;
}

代码示例来源：origin: joelittlejohn/jsonschema2pojo

private String getTypeName(JsonNode node) {
  if (node.has("type") && node.get("type").isArray() && node.get("type").size() > 0) {
    for (JsonNode jsonNode : node.get("type")) {
      String typeName = jsonNode.asText();
      if (!typeName.equals("null")) {
        return typeName;
      }
    }
  }
  if (node.has("type") && node.get("type").isTextual()) {
    return node.get("type").asText();
  }
  return DEFAULT_TYPE_NAME;
}

代码示例来源：origin: testcontainers/testcontainers-java

private Map.Entry<String, JsonNode> findAuthNode(final JsonNode config, final String reposName) {
  final JsonNode auths = config.get("auths");
  if (auths != null && auths.size() > 0) {
    final Iterator<Map.Entry<String, JsonNode>> fields = auths.fields();
    while (fields.hasNext()) {
      final Map.Entry<String, JsonNode> entry = fields.next();
      if (entry.getKey().contains("://" + reposName) || entry.getKey().equals(reposName)) {
        return entry;
      }
    }
  }
  return null;
}

代码示例来源：origin: apache/incubator-druid

if (node.isArray()) {
 final List<Object> nodeValue = Lists.newArrayListWithExpectedSize(node.size());
 for (final JsonNode subnode : node) {
  final Object subnodeValue = valueFunction.apply(subnode);
  if (subnodeValue != null) {
   nodeValue.add(subnodeValue);

代码示例来源：origin: Graylog2/graylog2-server

public static ElasticsearchException specificException(Supplier<String> errorMessage, JsonNode errorNode) {
  final JsonNode rootCauses = errorNode.path("root_cause");
  final List<String> reasons = new ArrayList<>(rootCauses.size());
      reasons.add(reason.asText());
      continue;
    switch(type.asText()) {
      case "query_parsing_exception":
        return buildQueryParsingException(errorMessage, rootCause, reasons);
      case "index_not_found_exception":
        final String indexName = rootCause.path("resource.id").asText();
        return buildIndexNotFoundException(errorMessage, indexName);
      case "illegal_argument_exception":

代码示例来源：origin: testcontainers/testcontainers-java

private AuthConfig authConfigUsingHelper(final JsonNode config, final String reposName) throws Exception {
  final JsonNode credHelpers = config.get("credHelpers");
  if (credHelpers != null && credHelpers.size() > 0) {
    final JsonNode helperNode = credHelpers.get(reposName);
    if (helperNode != null && helperNode.isTextual()) {
      final String helper = helperNode.asText();
      return runCredentialProvider(reposName, helper);
    }
  }
  return null;
}

代码示例来源：origin: auth0/java-jwt

@Override
@SuppressWarnings("unchecked")
public <T> T[] asArray(Class<T> tClazz) throws JWTDecodeException {
  if (!data.isArray()) {
    return null;
  }
  T[] arr = (T[]) Array.newInstance(tClazz, data.size());
  for (int i = 0; i < data.size(); i++) {
    try {
      arr[i] = objectReader.treeToValue(data.get(i), tClazz);
    } catch (JsonProcessingException e) {
      throw new JWTDecodeException("Couldn't map the Claim's array contents to " + tClazz.getSimpleName(), e);
    }
  }
  return arr;
}

代码示例来源：origin: graphhopper/graphhopper

@Override
  public PathDetail deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
    JsonNode pathDetail = jp.readValueAsTree();
    if (pathDetail.size() != 3)
      throw new JsonParseException(jp, "PathDetail array must have exactly 3 entries but was " + pathDetail.size());

    JsonNode from = pathDetail.get(0);
    JsonNode to = pathDetail.get(1);
    JsonNode val = pathDetail.get(2);

    PathDetail pd;
    if (val.isBoolean())
      pd = new PathDetail(val.asBoolean());
    else if (val.isLong())
      pd = new PathDetail(val.asLong());
    else if (val.isInt())
      pd = new PathDetail(val.asInt());
    else if (val.isDouble())
      pd = new PathDetail(val.asDouble());
    else if (val.isTextual())
      pd = new PathDetail(val.asText());
    else
      throw new JsonParseException(jp, "Unsupported type of PathDetail value " + pathDetail.getNodeType().name());

    pd.setFirst(from.asInt());
    pd.setLast(to.asInt());
    return pd;
  }
}

代码示例来源：origin: aws/aws-sdk-java

/**
 * Transforms the {@link JsonNode} into a map to integrate with the {@link SignatureChecker} utility.
 *
 * @param messageJson JSON of message.
 * @return Transformed map.
 */
private Map<String, String> toMap(JsonNode messageJson) {
  Map<String, String> fields = new HashMap<String, String>(messageJson.size());
  Iterator<Map.Entry<String, JsonNode>> jsonFields = messageJson.fields();
  while (jsonFields.hasNext()) {
    Map.Entry<String, JsonNode> next = jsonFields.next();
    fields.put(next.getKey(), next.getValue().asText());
  }
  return fields;
}

代码示例来源：origin: liferay/liferay-portal

/**
 * Returns the exposed entry points in a Map. The key is the ID of a given
 * resource collection and the value its managed type
 *
 * @return Map<String, String> Resource ID / Managed type, empty otherwise
 */
public Map<String, String> getRootEndpointMap() {
  JsonNode collectionArrayJsonNode = getCollectionJsonNode();
  if (!collectionArrayJsonNode.isArray() ||
    (collectionArrayJsonNode.size() == 0)) {
    if (_log.isDebugEnabled()) {
      _log.debug(
        "Unable to fetch the resources from the entry point");
    }
    return Collections.emptyMap();
  }
  Map<String, String> rootEndpointMap = new TreeMap<>();
  for (final JsonNode collectionJsonNode : collectionArrayJsonNode) {
    JsonNode idJsonNode = collectionJsonNode.path(JSONLDConstants.ID);
    String managedType = ApioUtils.getManagedType(collectionJsonNode);
    rootEndpointMap.put(idJsonNode.asText(), managedType);
  }
  return Collections.unmodifiableMap(rootEndpointMap);
}

代码示例来源：origin: liferay/liferay-portal

protected JsonNode findJsonNode(JsonNode resource, String nodeName) {
  JsonNode jsonNode = resource.path(nodeName);
  if (_log.isDebugEnabled()) {
    if (jsonNode.isMissingNode()) {
      _log.debug("Unable to find the \"{}\" node", nodeName);
    }
    if (jsonNode.isArray() && (jsonNode.size() == 0)) {
      _log.debug("The \"{}\" array node is empty", jsonNode);
    }
  }
  return jsonNode;
}

代码示例来源：origin: Activiti/Activiti

protected List<String> getActiveValueList(List<String> originalValues, String propertyName, ObjectNode taskElementProperties) {
  List<String> activeValues = originalValues;
  if (taskElementProperties != null) {
   JsonNode overrideValuesNode = taskElementProperties.get(propertyName);
   if (overrideValuesNode != null) {
    if (overrideValuesNode.isNull() || !overrideValuesNode.isArray()  || overrideValuesNode.size() == 0) {
     activeValues = null;
    } else {
     activeValues = new ArrayList<String>();
     for (JsonNode valueNode : overrideValuesNode) {
      activeValues.add(valueNode.asText());
     }
    }
   }
  }
  return activeValues;
 }
}

代码示例来源：origin: aws/aws-sdk-java

private static List<JmesPathExpression> getChildren(JsonNode jsonNode){
  if(jsonNode.get("children").size() < 1) {
    throw new RuntimeException("Expected one or more arguments");
  }
  Iterator<JsonNode> children = jsonNode.get("children").elements();
  final List<JmesPathExpression> childrenList = new ArrayList<>();
  while (children.hasNext()) {
    childrenList.add(fromAstJsonToAstJava(children.next()));
  }
  return childrenList;
}

代码示例来源：origin: apache/incubator-pinot

private static String serializeRow(JsonNode row, Map<Integer, Integer> expectedToActualColMap) {
 StringBuilder sb = new StringBuilder();
 final int numCols = row.size();
 sb.append(numCols).append('_');
 for (int i = 0; i < numCols; i++) {
  String toAppend;
  if (expectedToActualColMap == null) {
   toAppend = row.get(i).asText();
  } else {
   toAppend = row.get(expectedToActualColMap.get(i)).asText();
  }
  // For number value, uniform the format and do fuzzy comparison
  try {
   double numValue = Double.parseDouble(toAppend);
   sb.append((int) (numValue * 100)).append('_');
  } catch (NumberFormatException e) {
   sb.append(toAppend).append('_');
  }
 }
 return sb.toString();
}

代码示例来源：origin: liferay/liferay-portal

public JsonNode getFirstEntryJsonNode() {
  JsonNode memberJsonNode = getMemberJsonNode();
  if (!memberJsonNode.isArray() || (memberJsonNode.size() == 0)) {
    if (_log.isDebugEnabled()) {
      _log.debug("Unable to fetch the member node");
    }
    return MissingNode.getInstance();
  }
  return memberJsonNode.get(0);
}

代码示例来源：origin: joelittlejohn/jsonschema2pojo

private ObjectNode arraySchema(JsonNode exampleArray) {
  ObjectNode schema = this.objectMapper.createObjectNode();
  schema.put("type", "array");
  if (exampleArray.size() > 0) {
    JsonNode exampleItem = exampleArray.get(0).isObject() ? mergeArrayItems(exampleArray) : exampleArray.get(0);
    schema.set("items", schemaFromExample(exampleItem));
  }
  return schema;
}

代码示例来源：origin: joelittlejohn/jsonschema2pojo

private void addEnumConstants(JsonNode node, JDefinedClass _enum, JsonNode customNames, JType type) {
  Collection<String> existingConstantNames = new ArrayList<>();
  for (int i = 0; i < node.size(); i++) {
    JsonNode value = node.path(i);
    if (!value.isNull()) {
      String constantName = getConstantName(value.asText(), customNames.path(i).asText());
      constantName = makeUnique(constantName, existingConstantNames);
      existingConstantNames.add(constantName);
      JEnumConstant constant = _enum.enumConstant(constantName);
      constant.arg(DefaultRule.getDefaultValue(type, value));
      ruleFactory.getAnnotator().enumConstant(_enum, constant, value.asText());
    }
  }
}

代码示例来源：origin: liferay/liferay-portal

private static JsonNode _findJsonNode(JsonNode resource, String nodeName) {
  JsonNode jsonNode = resource.path(nodeName);
  if (_log.isDebugEnabled()) {
    if (jsonNode.isMissingNode()) {
      _log.debug("Unable to find the \"{}\" node", nodeName);
    }
    if (jsonNode.isArray() && (jsonNode.size() == 0)) {
      _log.debug("The \"{}\" array node is empty", jsonNode);
    }
  }
  return jsonNode;
}

代码示例来源：origin: auth0/java-jwt

List<String> getStringOrArray(Map<String, JsonNode> tree, String claimName) throws JWTDecodeException {
  JsonNode node = tree.get(claimName);
  if (node == null || node.isNull() || !(node.isArray() || node.isTextual())) {
    return null;
  }
  if (node.isTextual() && !node.asText().isEmpty()) {
    return Collections.singletonList(node.asText());
  }
  List<String> list = new ArrayList<>(node.size());
  for (int i = 0; i < node.size(); i++) {
    try {
      list.add(objectReader.treeToValue(node.get(i), String.class));
    } catch (JsonProcessingException e) {
      throw new JWTDecodeException("Couldn't map the Claim's array contents to String", e);
    }
  }
  return list;
}

代码示例来源：origin: twosigma/beakerx

@Override
public Object deserialize(JsonNode n, ObjectMapper mapper) {
 List<Object> o = new ArrayList<Object>();
 try {
  logger.debug("using custom array deserializer");
  for(int i=0; i<n.size(); i++) {
   o.add(parent.deserialize(n.get(i), mapper));
  }
 } catch (Exception e) {
  logger.error("exception deserializing Collection ", e);
  o = null;
 }
 return o;
}