elemental.json.JsonObject.hasKey()方法的使用及代码示例

x33g5p2x  于2022-01-22 转载在 其他  
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本文整理了Java中elemental.json.JsonObject.hasKey()方法的一些代码示例，展示了JsonObject.hasKey()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。JsonObject.hasKey()方法的具体详情如下：
包路径：elemental.json.JsonObject
类名称：JsonObject
方法名：hasKey

JsonObject.hasKey介绍

[英]Test whether a given key has present.
[中]测试给定的密钥是否存在。

代码示例

代码示例来源：origin: com.vaadin/vaadin-server

private String getConfigOrNull(String name) {
  JsonObject parameters = context.getApplicationParameters();
  if (parameters.hasKey(name)) {
    return parameters.getString(name);
  } else {
    return null;
  }
}

代码示例来源：origin: com.vaadin/vaadin-server

/**
 * Gets a data object with the given key from the given JsonObject. If
 * there is no object with the key, this method creates a new
 * JsonObject.
 *
 * @param jsonObject
 *            the json object
 * @param key
 *            the key where the desired data object is stored
 * @return data object for the given key
 */
private JsonObject getDataObject(JsonObject jsonObject, String key) {
  if (!jsonObject.hasKey(key)) {
    jsonObject.put(key, Json.createObject());
  }
  return jsonObject.getObject(key);
}

代码示例来源：origin: com.vaadin/vaadin-server

/**
   * Sets the expected value of a state property so that changes can be
   * properly sent to the client. This needs to be done in cases where a state
   * change originates from the client, since otherwise the server-side would
   * fail to recognize if the value is changed back to its previous value.
   *
   * @param propertyName
   *            the name of the shared state property to update
   * @param newValue
   *            the new diffstate reference value
   */
  protected void updateDiffstate(String propertyName, JsonValue newValue) {
    if (!isAttached()) {
      return;
    }

    JsonObject diffState = getUI().getConnectorTracker().getDiffState(this);
    if (diffState == null) {
      return;
    }

    assert diffState.hasKey(propertyName) : "Diffstate for "
        + getClass().getName() + " has no property named "
        + propertyName;

    diffState.put(propertyName, newValue);
  }
}

代码示例来源：origin: com.vaadin/vaadin-server

if (json.hasKey(ApplicationConstants.RESYNCHRONIZE_ID)) {
  resynchronize = json
      .getBoolean(ApplicationConstants.RESYNCHRONIZE_ID);
  resynchronize = false;
if (json.hasKey(ApplicationConstants.WIDGETSET_VERSION_ID)) {
  widgetsetVersion = json
      .getString(ApplicationConstants.WIDGETSET_VERSION_ID);
if (json.hasKey(ApplicationConstants.CLIENT_TO_SERVER_ID)) {
  clientToServerMessageId = (int) json
      .getNumber(ApplicationConstants.CLIENT_TO_SERVER_ID);

代码示例来源：origin: com.vaadin/vaadin-server

if (!hierachyInfo.hasKey(firstVisibleParent.getConnectorId())) {

代码示例来源：origin: com.vaadin/vaadin-server

Object fieldValue = property.getValue(value);
if (encoded.hasKey(fieldName)) {
  throw new RuntimeException("Can't encode "
      + valueType.getName()

代码示例来源：origin: com.vaadin/flow-server

private static boolean isTemplateModelValue(Component instance,
    JsonValue argValue, Class<?> convertedType) {
  return instance instanceof PolymerTemplate
      && argValue instanceof JsonObject
      && ((PolymerTemplate<?>) instance)
          .isSupportedClass(convertedType)
      && ((JsonObject) argValue).hasKey("nodeId");
}

代码示例来源：origin: com.vaadin/flow-server

private static Map<LoadMode, JsonArray> popDependenciesToProcessOnServer(
    JsonObject initialUIDL) {
  Map<LoadMode, JsonArray> result = new EnumMap<>(LoadMode.class);
  Stream.of(LoadMode.EAGER, LoadMode.INLINE).forEach(mode -> {
    if (initialUIDL.hasKey(mode.name())) {
      result.put(mode, initialUIDL.getArray(mode.name()));
      initialUIDL.remove(mode.name());
    }
  });
  return result;
}

代码示例来源：origin: com.vaadin/flow-maven-plugin

private String getPackageName(ArtifactData webJar, String nameSourceJarPath) {
  String fileContents;
  try {
    fileContents = IOUtils.toString(jarContentsManager.getFileContents(webJar.getFileOrDirectory(), nameSourceJarPath), StandardCharsets.UTF_8.displayName());
  } catch (IOException e) {
    throw new UncheckedIOException(String.format("Unable to read file '%s' from webJar '%s'", nameSourceJarPath, webJar.getFileOrDirectory()), e);
  }
  JsonObject jsonObject = Json.parse(fileContents);
  if (jsonObject.hasKey("name")) {
    String name = jsonObject.getString("name");
    return name.substring(name.lastIndexOf('/') + 1);
  } else {
    throw new IllegalStateException(String.format("Incorrect WebJar '%s': file '%s' inside it has no 'name' field", webJar, nameSourceJarPath));
  }
}

代码示例来源：origin: com.vaadin/hummingbird-server

@Override
protected void handleNode(StateNode node, JsonObject invocationJson) {
  assert invocationJson.hasKey(JsonConstants.RPC_PROPERTY);
  assert invocationJson.hasKey(JsonConstants.RPC_PROPERTY_VALUE);
  String property = invocationJson.getString(JsonConstants.RPC_PROPERTY);
  Serializable value = JsonCodec.decodeWithoutTypeInfo(
      invocationJson.get(JsonConstants.RPC_PROPERTY_VALUE));
  node.getFeature(ElementPropertyMap.class).setProperty(property, value,
      false);
}

代码示例来源：origin: com.haulmont.cuba/cuba-web-toolkit

@Override
protected void afterUpdatesOptionsBox(List<JsonObject> items) {
  int index = 0;
  for (JsonObject item : items) {
    CubaDoubleClickListBox cubaSelections = (CubaDoubleClickListBox) optionsListBox;
    if (item.hasKey("style")) {
      cubaSelections.setOptionClassName(index, item.getString("style"));
    } else {
      cubaSelections.removeClassName(index);
    }
    index++;
  }
}

代码示例来源：origin: com.haulmont.cuba/cuba-web-toolkit

@Override
protected void afterUpdatesSelectionsBox(List<JsonObject> selection) {
  int index = 0;
  for (JsonObject item : selection) {
    CubaDoubleClickListBox cubaSelections = (CubaDoubleClickListBox) selectionsListBox;
    if (item.hasKey("style")) {
      cubaSelections.setOptionClassName(index, item.getString("style"));
    } else {
      cubaSelections.removeClassName(index);
    }
    index++;
  }
}

代码示例来源：origin: org.eclipse.che.core/che-core-ide-app

/**
 * Determines whether perspective is maximized.
 *
 * @param partStacksState part stack state
 * @return <b>true</b> is perspective has maximized part stack
 */
private boolean isPerspectiveMaximized(JsonObject partStacksState) {
 for (String partStackType : partStacksState.keys()) {
  JsonObject partStackState = partStacksState.getObject(partStackType);
  if (partStackState.hasKey(PART_STACK_STATE)
    && PartStack.State.MAXIMIZED.name().equals(partStackState.getString(PART_STACK_STATE))) {
   return true;
  }
 }
 return false;
}

代码示例来源：origin: com.vaadin/vaadin-upload-flow

private String getStringObject(String propertyName, String object,
    String subName) {
  String result = null;
  JsonObject json = (JsonObject) getElement()
      .getPropertyRaw(propertyName);
  if (json != null && json.hasKey(object)
      && !(json.get(object) instanceof JsonNull)) {
    json = json.getObject(object);
    if (json != null && json.hasKey(subName)
        && !(json.get(subName) instanceof JsonNull)) {
      result = json.getString(subName);
    }
  }
  return result;
}

代码示例来源：origin: com.vaadin/flow-server

private Serializable tryConvert(Serializable value, StateNode context) {
  if (value instanceof JsonObject) {
    JsonObject json = (JsonObject) value;
    if (json.hasKey("nodeId")) {
      StateTree tree = (StateTree) context.getOwner();
      double id = json.getNumber("nodeId");
      StateNode stateNode = tree.getNodeById((int) id);
      return tryCopyStateNode(stateNode, json);
    }
  }
  return value;
}

代码示例来源：origin: com.vaadin/vaadin-upload-flow

private String getStringObject(String propertyName, String subName) {
  String result = null;
  JsonObject json = (JsonObject) getElement()
      .getPropertyRaw(propertyName);
  if (json != null && json.hasKey(subName)
      && !(json.get(subName) instanceof JsonNull)) {
    result = json.getString(subName);
  }
  return result;
}

代码示例来源：origin: org.eclipse.che.core/che-core-ide-app

@Override
public Promise<Void> loadState(JsonObject state) {
 if (state.hasKey(PERSPECTIVES)) {
  JsonObject perspectives = state.getObject(PERSPECTIVES);
  Map<String, Perspective> perspectiveMap = perspectiveManagerProvider.get().getPerspectives();
  ArrayOf<Promise<?>> perspectivePromises = Collections.arrayOf();
  for (String key : perspectives.keys()) {
   if (perspectiveMap.containsKey(key)) {
    perspectivePromises.push(perspectiveMap.get(key).loadState(perspectives.getObject(key)));
   }
  }
  return promises.all2(perspectivePromises).thenPromise(ignored -> promises.resolve(null));
 }
 return promises.resolve(null);
}

代码示例来源：origin: com.vaadin/flow-server

@Override
public Optional<Runnable> handleNode(StateNode node, JsonObject invocationJson) {
  assert invocationJson.hasKey(JsonConstants.RPC_EVENT_TYPE);
  String eventType = invocationJson
      .getString(JsonConstants.RPC_EVENT_TYPE);
  JsonObject eventData = invocationJson
      .getObject(JsonConstants.RPC_EVENT_DATA);
  if (eventData == null) {
    eventData = Json.createObject();
  }
  DomEvent event = new DomEvent(Element.get(node), eventType, eventData);
  node.getFeature(ElementListenerMap.class).fireEvent(event);
  return Optional.empty();
}

代码示例来源：origin: com.vaadin/hummingbird-server

@Override
public void handle(UI ui, JsonObject invocationJson) {
  assert invocationJson.hasKey(JsonConstants.RPC_NODE);
  StateNode node = ui.getInternals().getStateTree()
      .getNodeById(getNodeId(invocationJson));
  if (node == null) {
    getLogger().warning("Got an RPC for non-existent node: "
        + getNodeId(invocationJson));
    return;
  }
  if (!node.isAttached()) {
    getLogger().warning("Got an RPC for detached node: "
        + getNodeId(invocationJson));
    return;
  }
  handleNode(node, invocationJson);
}

代码示例来源：origin: com.vaadin/hummingbird-server

@Override
public void handleNode(StateNode node, JsonObject invocationJson) {
  assert invocationJson.hasKey(JsonConstants.RPC_EVENT_TYPE);
  String eventType = invocationJson
      .getString(JsonConstants.RPC_EVENT_TYPE);
  JsonObject eventData = invocationJson
      .getObject(JsonConstants.RPC_EVENT_DATA);
  if (eventData == null) {
    eventData = Json.createObject();
  }
  DomEvent event = new DomEvent(Element.get(node), eventType, eventData);
  node.getFeature(ElementListenerMap.class).fireEvent(event);
}

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