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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications 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.interfaces
import kotlinx.coroutines.runBlocking
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintProcessorException
import java.util.function.Function
interface BlueprintFunctionNode<T, R> : Function<T, R> {
fun getName(): String
@Throws(BlueprintProcessorException::class)
fun prepareRequest(executionRequest: T): T = runBlocking {
prepareRequestNB(executionRequest)
}
@Throws(BlueprintProcessorException::class)
fun process(executionRequest: T) = runBlocking {
processNB(executionRequest)
}
@Throws(BlueprintProcessorException::class)
fun recover(runtimeException: RuntimeException, executionRequest: T) = runBlocking {
recoverNB(runtimeException, executionRequest)
}
@Throws(BlueprintProcessorException::class)
fun prepareResponse(): R = runBlocking {
prepareResponseNB()
}
override fun apply(executionServiceInput: T): R {
try {
prepareRequest(executionServiceInput)
process(executionServiceInput)
} catch (runtimeException: RuntimeException) {
recover(runtimeException, executionServiceInput)
}
return prepareResponse()
}
@Throws(BlueprintProcessorException::class)
suspend fun prepareRequestNB(executionRequest: T): T
@Throws(BlueprintProcessorException::class)
suspend fun processNB(executionRequest: T)
@Throws(BlueprintProcessorException::class)
suspend fun recoverNB(runtimeException: RuntimeException, executionRequest: T)
@Throws(BlueprintProcessorException::class)
suspend fun prepareResponseNB(): R
@Throws(BlueprintProcessorException::class)
suspend fun applyNB(t: T): R
}
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