diff options
Diffstat (limited to 'infra/northbound/common/src/main/java/io/fd/honeycomb/northbound/NorthboundPrivateModule.java')
-rw-r--r-- | infra/northbound/common/src/main/java/io/fd/honeycomb/northbound/NorthboundPrivateModule.java | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/infra/northbound/common/src/main/java/io/fd/honeycomb/northbound/NorthboundPrivateModule.java b/infra/northbound/common/src/main/java/io/fd/honeycomb/northbound/NorthboundPrivateModule.java new file mode 100644 index 000000000..da471a06a --- /dev/null +++ b/infra/northbound/common/src/main/java/io/fd/honeycomb/northbound/NorthboundPrivateModule.java @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2017 Cisco 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.honeycomb.northbound; + +import com.google.inject.Guice; +import com.google.inject.Injector; +import com.google.inject.Module; +import com.google.inject.PrivateModule; + +/** + * Base class for Honeycomb's PrivateModules, that are initialized conditionally based on specific configuration. + * + * @param <T> module configuration type + */ +public abstract class NorthboundPrivateModule<T> extends PrivateModule implements ConfigurationSupplier<T> { + + private final Class<T> configClass; + private final Module configurationModule; + private final Injector injector; + + protected NorthboundPrivateModule(final Module configurationModule, final Class<T> configClass) { + this.configurationModule = configurationModule; + this.configClass = configClass; + this.injector = Guice.createInjector(configurationModule); + } + + @Override + public final Module getConfigurationModule() { + return configurationModule; + } + + @Override + public final T getConfiguration() { + return injector.getInstance(configClass); + } +} |