TeslaCN commented on a change in pull request #1548:
URL:
https://github.com/apache/shardingsphere-elasticjob/pull/1548#discussion_r502144791
##########
File path:
elasticjob-infra/elasticjob-infra-common/src/main/java/org/apache/shardingsphere/elasticjob/infra/spi/ElasticJobServiceLoader.java
##########
@@ -76,4 +81,58 @@ private static Object newServiceInstance(final Class<?>
clazz) {
throw new ServiceLoaderInstantiationException(clazz,
ex.getCause());
}
}
+
+ /**
+ * Register typeSPI service.
+ *
+ * @param typedService specific service type
+ * @param <T> type of service
+ */
+ public static <T> void registerTypedService(final Class<T> typedService) {
+ if (!TypedSPI.class.isAssignableFrom(typedService)) {
+ throw new IllegalArgumentException("Cannot register @" +
typedService.getName() + "as a typed service, because its not a subClass of @"
+ typedService);
+ }
+ if (TYPED_SERVICES.containsKey(typedService)) {
+ return;
+ }
+ ServiceLoader.load(typedService).forEach(each ->
registerTypedServiceClass(typedService, (TypedSPI) each));
+ }
+
+ private static <T> void registerTypedServiceClass(final Class<T>
typedService, final TypedSPI instance) {
+ TYPED_SERVICES.computeIfAbsent(typedService, unused -> new
ConcurrentHashMap<>()).putIfAbsent(instance.getType(), instance);
+ TYPED_SERVICE_CLASSES.computeIfAbsent(typedService, unused -> new
ConcurrentHashMap<>()).putIfAbsent(instance.getType(), instance.getClass());
+ }
+
+ /**
+ * Get cached instance.
+ *
+ * @param typedService service type
+ * @param type specific service type
+ * @param <T> specific type of service
+ * @return cached service instance
+ */
+ public static <T extends TypedSPI> T getCachedInstance(final Class<T>
typedService, final String type) {
+ T instance = TYPED_SERVICES.containsKey(typedService) ? (T)
TYPED_SERVICES.get(typedService).get(type) : null;
+ if (instance == null) {
Review comment:
Have constants on the left and variable on the right in = and equals
conditional expressions; Have variable on the left and constants on the right
in greater than and less than conditional expressions.
Ref https://shardingsphere.apache.org/community/en/contribute/code-conduct/
##########
File path:
elasticjob-infra/elasticjob-infra-common/src/main/java/org/apache/shardingsphere/elasticjob/infra/spi/ElasticJobServiceLoader.java
##########
@@ -76,4 +81,58 @@ private static Object newServiceInstance(final Class<?>
clazz) {
throw new ServiceLoaderInstantiationException(clazz,
ex.getCause());
}
}
+
+ /**
+ * Register typeSPI service.
+ *
+ * @param typedService specific service type
+ * @param <T> type of service
+ */
+ public static <T> void registerTypedService(final Class<T> typedService) {
+ if (!TypedSPI.class.isAssignableFrom(typedService)) {
+ throw new IllegalArgumentException("Cannot register @" +
typedService.getName() + "as a typed service, because its not a subClass of @"
+ typedService);
+ }
+ if (TYPED_SERVICES.containsKey(typedService)) {
+ return;
+ }
+ ServiceLoader.load(typedService).forEach(each ->
registerTypedServiceClass(typedService, (TypedSPI) each));
+ }
+
+ private static <T> void registerTypedServiceClass(final Class<T>
typedService, final TypedSPI instance) {
+ TYPED_SERVICES.computeIfAbsent(typedService, unused -> new
ConcurrentHashMap<>()).putIfAbsent(instance.getType(), instance);
+ TYPED_SERVICE_CLASSES.computeIfAbsent(typedService, unused -> new
ConcurrentHashMap<>()).putIfAbsent(instance.getType(), instance.getClass());
+ }
+
+ /**
+ * Get cached instance.
+ *
+ * @param typedService service type
+ * @param type specific service type
+ * @param <T> specific type of service
+ * @return cached service instance
+ */
+ public static <T extends TypedSPI> T getCachedInstance(final Class<T>
typedService, final String type) {
+ T instance = TYPED_SERVICES.containsKey(typedService) ? (T)
TYPED_SERVICES.get(typedService).get(type) : null;
+ if (instance == null) {
+ throw new JobConfigurationException("Cannot find a cached typed
service instance by the interface: @" + typedService.getName() + "and type: " +
type);
+ }
+ return instance;
+ }
+
+ /**
+ * New typed instance.
+ *
+ * @param typedService service type
+ * @param type specific service type
+ * @param <T> specific type of service
+ * @return specific typed service instance
+ */
+ public static <T extends TypedSPI> T newTypedServiceInstance(final
Class<T> typedService, final String type) {
+ Class<?> instanceClass =
TYPED_SERVICE_CLASSES.containsKey(typedService) ?
TYPED_SERVICE_CLASSES.get(typedService).get(type) : null;
+ if (instanceClass == null) {
Review comment:
Have constants on the left and variable on the right in = and equals
conditional expressions; Have variable on the left and constants on the right
in greater than and less than conditional expressions.
Ref https://shardingsphere.apache.org/community/en/contribute/code-conduct/
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