org.eclipse.ditto.json.JsonObject.isNull()方法的使用及代码示例
本文整理了Java中org.eclipse.ditto.json.JsonObject.isNull()方法的一些代码示例，展示了JsonObject.isNull()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.isNull()方法的具体详情如下：
包路径：org.eclipse.ditto.json.JsonObject
类名称：JsonObject
方法名：isNull
JsonObject.isNull介绍
暂无
代码示例
代码示例来源：origin: org.eclipse.ditto/ditto-model-things
@Override
public boolean isNull() {
return wrapped.isNull();
}代码示例来源：origin: org.eclipse.ditto/ditto-model-things
@Override
public boolean isNull() {
return wrapped.isNull();
}代码示例来源：origin: eclipse/ditto
@Override
public boolean isNull() {
return wrapped.isNull();
}代码示例来源：origin: eclipse/ditto
@Override
public boolean isNull() {
return wrapped.isNull();
}代码示例来源：origin: org.eclipse.ditto/ditto-signals-commands-things
/**
* Creates a response to a {@link RetrieveFeatureProperties} command.
*
* @param thingId the Thing ID of the retrieved feature properties.
* @param featureId the identifier of the Feature whose Properties were retrieved.
* @param jsonObject the retrieved FeatureProperties JSON.
* @param dittoHeaders the headers of the preceding command.
* @return the response.
* @throws NullPointerException if any argument is {@code null}.
*/
public static RetrieveFeaturePropertiesResponse of(final String thingId, final String featureId,
@Nullable final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
final FeatureProperties featureProperties;
if (jsonObject == null || jsonObject.isNull()) {
featureProperties = ThingsModelFactory.nullFeatureProperties();
} else {
featureProperties = ThingsModelFactory.newFeatureProperties(jsonObject);
}
return of(thingId, featureId, featureProperties, dittoHeaders);
}代码示例来源：origin: eclipse/ditto
/**
* Creates a response to a {@link RetrieveFeatureProperties} command.
*
* @param thingId the Thing ID of the retrieved feature properties.
* @param featureId the identifier of the Feature whose Properties were retrieved.
* @param jsonObject the retrieved FeatureProperties JSON.
* @param dittoHeaders the headers of the preceding command.
* @return the response.
* @throws NullPointerException if any argument is {@code null}.
*/
public static RetrieveFeaturePropertiesResponse of(final String thingId, final String featureId,
@Nullable final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
final FeatureProperties featureProperties;
if (jsonObject == null || jsonObject.isNull()) {
featureProperties = ThingsModelFactory.nullFeatureProperties();
} else {
featureProperties = ThingsModelFactory.newFeatureProperties(jsonObject);
}
return of(thingId, featureId, featureProperties, dittoHeaders);
}代码示例来源：origin: org.eclipse.ditto/ditto-model-things
/**
* Returns a new immutable {@link FeatureProperties} which is initialised with the values of the given JSON object.
*
* @param jsonObject provides the initial values of the result.
* @return the new immutable initialised {@code FeatureProperties}.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
*/
public static FeatureProperties newFeatureProperties(final JsonObject jsonObject) {
checkNotNull(jsonObject, "JSON object for initialization");
if (!jsonObject.isNull()) {
return ImmutableFeatureProperties.of(jsonObject);
} else {
return nullFeatureProperties();
}
}代码示例来源：origin: org.eclipse.ditto/ditto-model-things
/**
* Returns a new immutable {@link Attributes} which is initialised with the values of the given JSON object.
*
* @param jsonObject provides the initial values of the result.
* @return the new immutable initialised {@code Attributes}.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
*/
public static Attributes newAttributes(final JsonObject jsonObject) {
checkNotNull(jsonObject, "JSON object for initialization");
if (!jsonObject.isNull()) {
return ImmutableAttributes.of(jsonObject);
} else {
return nullAttributes();
}
}代码示例来源：origin: eclipse/ditto
/**
* Returns a new immutable {@link Attributes} which is initialised with the values of the given JSON object.
*
* @param jsonObject provides the initial values of the result.
* @return the new immutable initialised {@code Attributes}.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
*/
public static Attributes newAttributes(final JsonObject jsonObject) {
checkNotNull(jsonObject, "JSON object for initialization");
if (!jsonObject.isNull()) {
return ImmutableAttributes.of(jsonObject);
} else {
return nullAttributes();
}
}代码示例来源：origin: eclipse/ditto
/**
* Returns a new immutable {@link FeatureProperties} which is initialised with the values of the given JSON object.
*
* @param jsonObject provides the initial values of the result.
* @return the new immutable initialised {@code FeatureProperties}.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
*/
public static FeatureProperties newFeatureProperties(final JsonObject jsonObject) {
checkNotNull(jsonObject, "JSON object for initialization");
if (!jsonObject.isNull()) {
return ImmutableFeatureProperties.of(jsonObject);
} else {
return nullFeatureProperties();
}
}代码示例来源：origin: org.eclipse.ditto/ditto-model-things
/**
* Creates a new builder for a Feature object based on the given JSON object.
*
* @param jsonObject the JSON object of which a new Feature instance is to be created.
* @return an object handle which allows further configuration of the Feature to be built.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
*/
public static FromJsonBuildable newFeatureFromJson(final JsonObject jsonObject) {
ConditionChecker.checkNotNull(jsonObject, "Feature JSON object");
final ImmutableFeatureFromScratchBuilder result = new ImmutableFeatureFromScratchBuilder();
if (jsonObject.isNull()) {
result.isFeatureValueJsonNull = true;
} else {
result.definition(jsonObject.getValue(Feature.JsonFields.DEFINITION)
.map(ThingsModelFactory::newFeatureDefinition)
.orElse(null));
result.properties(jsonObject.getValue(Feature.JsonFields.PROPERTIES)
.map(ThingsModelFactory::newFeatureProperties)
.orElse(null));
}
return result;
}代码示例来源：origin: eclipse/ditto
@Override
public FromScratch setFeatures(final JsonObject featuresJsonObject) {
checkNotNull(featuresJsonObject, "JSON object representation of Features to be set");
if (featuresJsonObject.isNull()) {
return setNullFeatures();
}
return setFeatures(ThingsModelFactory.newFeatures(featuresJsonObject));
}代码示例来源：origin: org.eclipse.ditto/ditto-model-things
@Override
public FromScratch setFeatures(final JsonObject featuresJsonObject) {
checkNotNull(featuresJsonObject, "JSON object representation of Features to be set");
if (featuresJsonObject.isNull()) {
return setNullFeatures();
}
return setFeatures(ThingsModelFactory.newFeatures(featuresJsonObject));
}代码示例来源：origin: org.eclipse.ditto/ditto-json
/**
* @param jsonFields the json fields to create a new JsonObject from.
* @return a null object if {@code jsonFields} is a null json object. Else this returns a new object containing the
* given {code jsonFields}.
*/
public static JsonObject newObject(final Iterable<JsonField> jsonFields) {
if (jsonFields instanceof JsonObject && ((JsonObject) jsonFields).isNull()) {
return JsonFactory.nullObject();
} else {
return JsonFactory.newObjectBuilder()
.setAll(jsonFields)
.build();
}
}代码示例来源：origin: eclipse/ditto
@SuppressWarnings("unchecked")
JsonObject buildJsonView(final Iterable<JsonField> jsonFields, final Set<String> subjectIds,
final Permissions permissions) {
final PolicyTrie defaultPolicyTrie = new PolicyTrie(grantRevokeIndex, Collections.emptyMap());
if (jsonFields instanceof JsonObject && ((JsonObject) jsonFields).isNull()) {
return (JsonObject) jsonFields;
}
final JsonObjectBuilder outputObjectBuilder = JsonFactory.newObjectBuilder();
for (final JsonField field : jsonFields) {
final JsonValue jsonView = getViewForJsonFieldOrNull(field, defaultPolicyTrie, subjectIds, permissions);
if (null != jsonView) {
final Optional<JsonFieldDefinition> definitionOptional = field.getDefinition();
if (definitionOptional.isPresent()) {
outputObjectBuilder.set(definitionOptional.get(), jsonView);
} else {
outputObjectBuilder.set(field.getKey(), jsonView);
}
}
}
return outputObjectBuilder.build();
}代码示例来源：origin: eclipse/ditto
@Override
public FromScratch setAttributes(final JsonObject attributesJsonObject) {
checkNotNull(attributesJsonObject, "JSON object representation of Attributes to be set");
if (attributesJsonObject.isNull()) {
return setNullAttributes();
} else if (attributesJsonObject.isEmpty()) {
return setEmptyAttributes();
}
return setAttributes(ThingsModelFactory.newAttributes(attributesJsonObject));
}代码示例来源：origin: org.eclipse.ditto/ditto-model-things
@Override
public FromScratch setAttributes(final JsonObject attributesJsonObject) {
checkNotNull(attributesJsonObject, "JSON object representation of Attributes to be set");
if (attributesJsonObject.isNull()) {
return setNullAttributes();
} else if (attributesJsonObject.isEmpty()) {
return setEmptyAttributes();
}
return setAttributes(ThingsModelFactory.newAttributes(attributesJsonObject));
}代码示例来源：origin: org.eclipse.ditto/ditto-signals-commands-things
/**
* Creates a response to a {@link ModifyAttributes} command from a JSON object.
*
* @param jsonObject the JSON object of which the response is to be created.
* @param dittoHeaders the headers of the preceding command.
* @return the response.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
* @throws org.eclipse.ditto.json.JsonParseException if the passed in {@code jsonObject} was not in the expected
* format.
*/
public static ModifyAttributesResponse fromJson(final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
return new CommandResponseJsonDeserializer<ModifyAttributesResponse>(TYPE, jsonObject).deserialize(
statusCode -> {
final String thingId =
jsonObject.getValueOrThrow(ThingModifyCommandResponse.JsonFields.JSON_THING_ID);
final JsonObject attributesJsonObject = jsonObject.getValueOrThrow(JSON_ATTRIBUTES);
final Attributes extractedAttributes = (!attributesJsonObject.isNull())
? ThingsModelFactory.newAttributes(attributesJsonObject)
: ThingsModelFactory.nullAttributes();
return new ModifyAttributesResponse(thingId, statusCode, extractedAttributes, dittoHeaders);
});
}代码示例来源：origin: eclipse/ditto
/**
* Creates a new {@code FeaturesCreated} from a JSON object.
*
* @param jsonObject the JSON object from which a new FeaturesCreated instance is to be created.
* @param dittoHeaders the headers of the command which was the cause of this event.
* @return the {@code FeaturesCreated} which was created from the given JSON object.
* @throws NullPointerException if any argument is {@code null}.
* @throws org.eclipse.ditto.json.JsonParseException if the passed in {@code jsonObject} was not in the expected
* 'FeaturesCreated' format.
*/
public static FeaturesCreated fromJson(final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
return new EventJsonDeserializer<FeaturesCreated>(TYPE, jsonObject).deserialize((revision, timestamp) -> {
final String extractedThingId = jsonObject.getValueOrThrow(JsonFields.THING_ID);
final JsonObject featuresJsonObject = jsonObject.getValueOrThrow(JSON_FEATURES);
final Features extractedFeatures = (null != featuresJsonObject && !featuresJsonObject.isNull())
? ThingsModelFactory.newFeatures(featuresJsonObject)
: ThingsModelFactory.nullFeatures();
return of(extractedThingId, extractedFeatures, revision, timestamp, dittoHeaders);
});
}代码示例来源：origin: eclipse/ditto
/**
* Creates a new {@code FeatureCreated} from a JSON object.
*
* @param jsonObject the JSON object from which a new FeatureCreated instance is to be created.
* @param dittoHeaders the headers of the command which was the cause of this event.
* @return the {@code FeatureCreated} which was created from the given JSON object.
* @throws NullPointerException if {@code jsonObject} is {@code null}.
* @throws org.eclipse.ditto.json.JsonParseException if the passed in {@code jsonObject} was not in the expected
* 'FeatureCreated' format.
*/
public static FeatureCreated fromJson(final JsonObject jsonObject, final DittoHeaders dittoHeaders) {
return new EventJsonDeserializer<FeatureCreated>(TYPE, jsonObject).deserialize((revision, timestamp) -> {
final String extractedThingId = jsonObject.getValueOrThrow(JsonFields.THING_ID);
final String extractedFeatureId = jsonObject.getValueOrThrow(JsonFields.FEATURE_ID);
final JsonObject featureJsonObject = jsonObject.getValueOrThrow(JSON_FEATURE);
final Feature extractedFeature = !featureJsonObject.isNull()
? ThingsModelFactory.newFeatureBuilder(featureJsonObject).useId(extractedFeatureId).build()
: ThingsModelFactory.nullFeature(extractedFeatureId);
return of(extractedThingId, extractedFeature, revision, timestamp, dittoHeaders);
});
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