diff options
Diffstat (limited to 'ms/blueprintsprocessor/modules/blueprints/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintDependencyService.kt')
-rw-r--r-- | ms/blueprintsprocessor/modules/blueprints/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintDependencyService.kt | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/ms/blueprintsprocessor/modules/blueprints/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintDependencyService.kt b/ms/blueprintsprocessor/modules/blueprints/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintDependencyService.kt new file mode 100644 index 000000000..e8457283e --- /dev/null +++ b/ms/blueprintsprocessor/modules/blueprints/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintDependencyService.kt @@ -0,0 +1,62 @@ +/* + * Copyright © 2019 IBM. + * + * 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 org.onap.ccsdk.cds.controllerblueprints.core.service + +import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException +import org.springframework.context.ApplicationContext +import org.springframework.context.ConfigurableApplicationContext +import kotlin.reflect.KClass + +/** + * Generic Bluepring Dependency Service, which will be used mainly in scripts. + * This will be initialised only once during the Application startup. + * Function modules, shall add their own dependency function names as an extension function. + * + * @author Brinda Santh + */ + +object BluePrintDependencyService { + + lateinit var applicationContext: ApplicationContext + + fun inject(applicationContext: ApplicationContext) { + BluePrintDependencyService.applicationContext = applicationContext + } + + /** Used to inject [instance] into spring application context for the [key], + * Use this method only for testing + * */ + fun registerSingleton(key: String, instance: Any) { + val configurableApplicationContext = applicationContext as ConfigurableApplicationContext + configurableApplicationContext.beanFactory.registerSingleton(key, instance) + } + + inline fun <reified T> instance(name: String): T { + return applicationContext.getBean(name) as? T + ?: throw BluePrintProcessorException("failed to get instance($name)") + } + + inline fun <reified T> instance(type: Class<T>): T { + return applicationContext.getBean(type) + ?: throw BluePrintProcessorException("failed to get instance($type)") + } + + inline fun <reified T> instance(type: KClass<*>): T { + return applicationContext.getBean(type.java) as? T + ?: throw BluePrintProcessorException("failed to get instance($type)") + } +} |