com.fasterxml.jackson.databind.JsonNode.isArray()方法的使用及代码示例

x33g5p2x  于2022-01-21 转载在 其他  
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本文整理了Java中com.fasterxml.jackson.databind.JsonNode.isArray()方法的一些代码示例，展示了JsonNode.isArray()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.isArray()方法的具体详情如下：
包路径：com.fasterxml.jackson.databind.JsonNode
类名称：JsonNode
方法名：isArray

JsonNode.isArray介绍

暂无

代码示例

代码示例来源：origin: apache/incubator-druid

private boolean isFlatList(JsonNode list)
 {
  for (JsonNode obj : list) {
   if (obj.isObject() || obj.isArray()) {
    return false;
   }
  }
  return true;
 }
}

代码示例来源：origin: apache/kafka

private static Object convert(JsonNode value) {
  if (value.isArray()) {
    List<String> retvalList = new ArrayList<>();
    for (JsonNode arrayElement : value)
      retvalList.add(arrayElement.asText());
    return retvalList;
  }
  return value.getNodeType() == JsonNodeType.NUMBER ? value.numberValue() : value.asText();
}

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: prestodb/presto

private List<String> getColumnMetadata(Optional<String> parent, JsonNode propertiesNode)
{
  ImmutableList.Builder<String> metadata = ImmutableList.builder();
  Iterator<Entry<String, JsonNode>> iterator = propertiesNode.fields();
  while (iterator.hasNext()) {
    Entry<String, JsonNode> entry = iterator.next();
    String key = entry.getKey();
    JsonNode value = entry.getValue();
    String childKey;
    if (parent.isPresent()) {
      if (parent.get().isEmpty()) {
        childKey = key;
      }
      else {
        childKey = parent.get().concat(".").concat(key);
      }
    }
    else {
      childKey = key;
    }
    if (value.isObject()) {
      metadata.addAll(getColumnMetadata(Optional.of(childKey), value));
      continue;
    }
    if (!value.isArray()) {
      metadata.add(childKey.concat(":").concat(value.textValue()));
    }
  }
  return metadata.build();
}

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: apache/avro

private List<String> getTextProps(String key, Map<String,JsonNode> props,
              Token token) throws ParseException {
 JsonNode value = props.get(key);
 if (!value.isArray())
  throw error(key+" property must be array: "+value, token);
 List<String> values = new ArrayList<String>();
 for (JsonNode n : value)
  if (n.isTextual())
   values.add(n.textValue());
  else
   throw error(key+" values must be textual: "+n, token);
 return values;
}

代码示例来源：origin: spring-projects/spring-data-redis

private void flattenElement(String propertyPrefix, Object source, Map<String, Object> resultMap) {
  if (!(source instanceof JsonNode)) {
    resultMap.put(propertyPrefix, source);
    return;
  }
  JsonNode element = (JsonNode) source;
  if (element.isArray()) {
    Iterator<JsonNode> nodes = element.elements();
    while (nodes.hasNext()) {
      JsonNode cur = nodes.next();
      if (cur.isArray()) {
        this.falttenCollection(propertyPrefix, cur.elements(), resultMap);
      }
    }
  } else if (element.isContainerNode()) {
    this.doFlatten(propertyPrefix, element.fields(), resultMap);
  } else {
    resultMap.put(propertyPrefix, new DirectFieldAccessFallbackBeanWrapper(element).getPropertyValue("_value"));
  }
}

代码示例来源：origin: auth0/java-jwt

@Override
public <T> List<T> asList(Class<T> tClazz) throws JWTDecodeException {
  if (!data.isArray()) {
    return null;
  }
  List<T> list = new ArrayList<>();
  for (int i = 0; i < data.size(); i++) {
    try {
      list.add(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 list;
}

代码示例来源：origin: knowm/XChange

@Override
 public String deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
   throws IOException, JsonProcessingException {

  ObjectCodec oc = jsonParser.getCodec();
  JsonNode node = oc.readTree(jsonParser);
  if (node.isTextual()) {
   return node.textValue();
  } else if (node.isObject()) {
   JsonNode allNode = node.get("__all__");
   if (allNode != null && allNode.isArray()) {
    StringBuffer buf = new StringBuffer();
    for (JsonNode msgNode : allNode) {
     buf.append(msgNode.textValue());
     buf.append(",");
    }

    return buf.length() > 0 ? buf.substring(0, buf.length() - 1) : buf.toString();
   }

   return node.toString();
  }

  return null;
 }
}

代码示例来源：origin: joelittlejohn/jsonschema2pojo

private JsonNode resolve(JsonNode tree, List<String> path) {

    if (path.isEmpty()) {
      return tree;
    } else {
      String part = path.remove(0);

      if (tree.isArray()) {
        try {
          int index = Integer.parseInt(part);
          return resolve(tree.get(index), path);
        } catch (NumberFormatException e) {
          throw new IllegalArgumentException("Not a valid array index: " + part);
        }
      }

      if (tree.has(part)) {
        return resolve(tree.get(part), path);
      } else {
        throw new IllegalArgumentException("Path not present: " + part);
      }
    }

  }
}

代码示例来源：origin: knowm/XChange

@Override
 public BitZPublicOrder deserialize(JsonParser p, DeserializationContext ctxt)
   throws IOException, JsonProcessingException {
  ObjectCodec oc = p.getCodec();
  JsonNode node = oc.readTree(p);
  if (node.isArray()) {
   BigDecimal price = new BigDecimal(node.path(0).asText());
   BigDecimal volume = new BigDecimal(node.path(1).asText());
   return new BitZPublicOrder(price, volume);
  }
  return null;
 }
}

代码示例来源：origin: Netflix/conductor

private Object extractBody(ClientResponse cr) {
  String json = cr.getEntity(String.class);
  logger.info(json);
  
  try {
    
    JsonNode node = om.readTree(json);
    if (node.isArray()) {
      return om.convertValue(node, listOfObj);
    } else if (node.isObject()) {
      return om.convertValue(node, mapOfObj);
    } else if (node.isNumber()) {
      return om.convertValue(node, Double.class);
    } else {
      return node.asText();
    }
  } catch (IOException jpe) {
    logger.error(jpe.getMessage(), jpe);
    return json;
  }
}

代码示例来源：origin: prestodb/presto

@Override
public RangeBoundValue deserialize(JsonParser jp, DeserializationContext ctxt)
    throws IOException
{
  JsonNode node = jp.getCodec().readTree(jp);
  if (node.isNull()) {
    return null;
  }
  else {
    List<Object> list;
    if (node.isArray()) {
      list = new ArrayList<>();
      Iterator<JsonNode> iter = node.elements();
      while (iter.hasNext()) {
        Object v = toValue(iter.next());
        list.add(v);
      }
    }
    else {
      Object v = toValue(node);
      list = ImmutableList.of(v);
    }
    return new RangeBoundValue(list);
  }
}

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: aws/aws-sdk-java

/**
 * Generates a list of actions from the Action Json Node.
 *
 * @param actionNodes
 *            the action Json node to be parsed.
 * @return the list of actions.
 */
private List<Action> actionsOf(JsonNode actionNodes) {
  List<Action> actions = new LinkedList<Action>();
  if (actionNodes.isArray()) {
    for (JsonNode action : actionNodes) {
      actions.add(new NamedAction(action.asText()));
    }
  } else {
    actions.add(new NamedAction(actionNodes.asText()));
  }
  return actions;
}

代码示例来源：origin: spring-projects/spring-data-mongodb

@Override
  protected GeoJsonMultiLineString doDeserialize(ArrayNode coordinates) {
    List<GeoJsonLineString> lines = new ArrayList<GeoJsonLineString>(coordinates.size());
    for (JsonNode lineString : coordinates) {
      if (lineString.isArray()) {
        lines.add(toLineString((ArrayNode) lineString));
      }
    }
    return new GeoJsonMultiLineString(lines);
  }
}

代码示例来源：origin: aws/aws-sdk-java

public JsonNode visit(JmesPathFlatten flatten, JsonNode input) throws InvalidTypeException {
  JsonNode flattenResult = flatten.getFlattenExpr().accept(this, input);
  if (flattenResult.isArray()) {
    Iterator<JsonNode> elements = flattenResult.elements();
    ArrayNode flattenedArray = ObjectMapperSingleton.getObjectMapper().createArrayNode();
    while (elements.hasNext()) {
      JsonNode element = elements.next();
      if (element != null) {
        if (element.isArray()) {
          Iterator<JsonNode> inner = element.iterator();
          while (inner.hasNext()) {
            JsonNode innerElement = inner.next();
            if (innerElement != null) {
              flattenedArray.add(innerElement);

代码示例来源：origin: twosigma/beakerx

@SuppressWarnings("unchecked")
public static List<List<?>> getValues(BeakerObjectConverter parent, JsonNode n, ObjectMapper mapper) throws IOException {
 List<List<?>> values = null;
 List<String> classes = null;
 if (n.has("types"))
  classes = mapper.readValue(n.get("types").toString(), List.class);
 if (n.has("values")) {
  JsonNode nn = n.get("values");
  values = new ArrayList<List<?>>();
  if (nn.isArray()) {
   for (JsonNode nno : nn) {
    if (nno.isArray()) {
     ArrayList<Object> val = new ArrayList<Object>();
     for (int i = 0; i < nno.size(); i++) {
      JsonNode nnoo = nno.get(i);
      Object obj = parent.deserialize(nnoo, mapper);
      val.add(TableDisplayDeSerializer.getValueForDeserializer(obj, classes != null && classes.size() > i ? classes.get(i) : null));
     }
     values.add(val);
    }
   }
  }
 }
 return values;
}

代码示例来源：origin: knowm/XChange

@Override
 public KucoinActiveOrder deserialize(JsonParser p, DeserializationContext ctxt)
   throws IOException, JsonProcessingException {
  JsonNode root = p.readValueAsTree();
  if (root.isArray()) {
   Date timestamp = new Date(root.get(0).asLong());
   KucoinOrderType orderType = KucoinOrderType.valueOf(root.get(1).asText());
   BigDecimal price = root.get(2).decimalValue();
   BigDecimal amount = root.get(3).decimalValue();
   BigDecimal dealAmount = root.get(4).decimalValue(); // amount already filled
   String orderOid = root.get(5).textValue();
   return new KucoinActiveOrder(timestamp, orderType, price, amount, dealAmount, orderOid);
  } else {
   throw new RuntimeException("KucoinDealOrder should have an array as root node!");
  }
 }
}

代码示例来源：origin: knowm/XChange

@Override
 public String deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
   throws IOException, JsonProcessingException {

  ObjectCodec oc = jsonParser.getCodec();
  JsonNode node = oc.readTree(jsonParser);
  if (node.isTextual()) {
   return node.textValue();
  } else if (node.isObject()) {
   JsonNode allNode = node.get("__all__");
   if (allNode != null && allNode.isArray()) {
    StringBuffer buf = new StringBuffer();
    for (JsonNode msgNode : allNode) {
     buf.append(msgNode.textValue());
     buf.append(",");
    }

    return buf.length() > 0 ? buf.substring(0, buf.length() - 1) : buf.toString();
   }

   return node.toString();
  }

  return null;
 }
}

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