diff options
Diffstat (limited to 'srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/util/function/LocalSidFunctionBindingRegistry.java')
-rw-r--r-- | srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/util/function/LocalSidFunctionBindingRegistry.java | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/util/function/LocalSidFunctionBindingRegistry.java b/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/util/function/LocalSidFunctionBindingRegistry.java new file mode 100644 index 000000000..d56656fb9 --- /dev/null +++ b/srv6/srv6-impl/src/main/java/io/fd/hc2vpp/srv6/util/function/LocalSidFunctionBindingRegistry.java @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2018 Bell Canada, Pantheon Technologies and/or its affiliates. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package io.fd.hc2vpp.srv6.util.function; + +import static com.google.common.base.Preconditions.checkNotNull; + +import io.fd.hc2vpp.srv6.write.sid.request.LocalSidFunctionRequest; +import java.util.ArrayList; +import java.util.List; +import javax.annotation.Nonnull; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +abstract class LocalSidFunctionBindingRegistry<T extends LocalSidFunctionRequest> { + + private static final Logger LOG = LoggerFactory.getLogger(LocalSidFunctionBindingRegistry.class); + final List<LocalSidFunctionBinder<T>> binders; + + LocalSidFunctionBindingRegistry() { + binders = new ArrayList<>(); + } + + @SuppressWarnings("unchecked") + public void registerFunctionType(@Nonnull final LocalSidFunctionBinder binder) { + checkNotNull(binder, "Cannot register null binder"); + if (!isFunctionRegistered(binder)) { + binders.add(binder); + } else { + LOG.warn("Binder for class already registered. Canceling registration for {}.", binder); + } + } + + private boolean isFunctionRegistered(@Nonnull final LocalSidFunctionBinder binder) { + return binders.stream().parallel().anyMatch(locBinder -> locBinder.getClass().equals(binder.getClass())); + } +} |