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/*
 *  Copyright © 2017-2018 AT&T Intellectual Property.
 *  Modifications Copyright © 2018 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.blueprintsprocessor.functions.resource.resolution.processor

import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR
import org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.ExecutionServiceDomains
import org.onap.ccsdk.cds.controllerblueprints.core.BlueprintProcessorException
import org.onap.ccsdk.cds.controllerblueprints.core.updateErrorMessage
import org.onap.ccsdk.cds.controllerblueprints.resource.dict.ResourceAssignment
import org.slf4j.LoggerFactory
import org.springframework.beans.factory.config.ConfigurableBeanFactory
import org.springframework.context.annotation.Scope
import org.springframework.stereotype.Service

/**
 * DefaultResourceResolutionProcessor
 *
 * @author Kapil Singal
 */
@Service("${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-default")
@Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
open class DefaultResourceResolutionProcessor : ResourceAssignmentProcessor() {

    private val logger = LoggerFactory.getLogger(DefaultResourceResolutionProcessor::class.java)

    override fun getName(): String {
        return "${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-default"
    }

    override suspend fun processNB(resourceAssignment: ResourceAssignment) {
        try {
            if (!setFromInput(resourceAssignment)) {
                val value = resourceAssignment.property?.defaultValue
                ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, value)
            }
            // Check the value has populated for mandatory case
            ResourceAssignmentUtils.assertTemplateKeyValueNotNull(resourceAssignment)
        } catch (e: BlueprintProcessorException) {
            val errorMsg = "Failed to process default resource resolution in template key ($resourceAssignment) assignments."
            throw e.updateErrorMessage(
                ExecutionServiceDomains.RESOURCE_RESOLUTION, errorMsg,
                "Wrong default value was set."
            )
        } catch (e: Exception) {
            ResourceAssignmentUtils.setFailedResourceDataValue(resourceAssignment, e.message)
            throw BlueprintProcessorException("Failed in template key ($resourceAssignment) assignments with: ${e.message}", e)
        }
    }

    override suspend fun recoverNB(runtimeException: RuntimeException, resourceAssignment: ResourceAssignment) {
        addError(runtimeException.message!!)
    }
}