Ressource resolution using configurable database

Change-Id: I40338a221884d6f4df4c8a7dc3dac1f58f142074
Issue-ID: CCSDK-1092
Signed-off-by: vinal patel <vinal.narendrabhai.patel@ibm.com>

1 files changed, 60 insertions, 45 deletions

diff --git a/ms/blueprintsprocessor/functions/resource-resolution/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/functions/resource/resolution/processor/DatabaseResourceAssignmentProcessor.kt b/ms/blueprintsprocessor/functions/resource-resolution/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/functions/resource/resolution/processor/DatabaseResourceAssignmentProcessor.kt
index e38a1ccad..a192989e5 100644
--- a/ms/blueprintsprocessor/functions/resource-resolution/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/functions/resource/resolution/processor/DatabaseResourceAssignmentProcessor.kt
+++ b/ms/blueprintsprocessor/functions/resource-resolution/src/main/kotlin/org/onap/ccsdk/apps/blueprintsprocessor/functions/resource/resolution/processor/DatabaseResourceAssignmentProcessor.kt
@@ -19,40 +19,37 @@ package org.onap.ccsdk.apps.blueprintsprocessor.functions.resource.resolution.pr
 
 import com.fasterxml.jackson.databind.node.JsonNodeFactory
 import com.fasterxml.jackson.databind.node.MissingNode
-import org.onap.ccsdk.apps.blueprintsprocessor.db.primary.DBLibGenericService
+import com.fasterxml.jackson.databind.node.NullNode
+import org.onap.ccsdk.apps.blueprintsprocessor.db.BluePrintDBLibGenericService
+import org.onap.ccsdk.apps.blueprintsprocessor.db.primary.BluePrintDBLibPropertySevice
+import org.onap.ccsdk.apps.blueprintsprocessor.db.primary.PrimaryDBLibGenericService
 import org.onap.ccsdk.apps.blueprintsprocessor.functions.resource.resolution.DatabaseResourceSource
 import org.onap.ccsdk.apps.blueprintsprocessor.functions.resource.resolution.ResourceResolutionConstants.PREFIX_RESOURCE_RESOLUTION_PROCESSOR
 import org.onap.ccsdk.apps.blueprintsprocessor.functions.resource.resolution.utils.ResourceAssignmentUtils
-import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintProcessorException
-import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintTypes
-import org.onap.ccsdk.apps.controllerblueprints.core.checkEqualsOrThrow
-import org.onap.ccsdk.apps.controllerblueprints.core.checkNotEmpty
-import org.onap.ccsdk.apps.controllerblueprints.core.checkNotEmptyOrThrow
-import org.onap.ccsdk.apps.controllerblueprints.core.nullToEmpty
-import org.onap.ccsdk.apps.controllerblueprints.core.returnNotEmptyOrThrow
+import org.onap.ccsdk.apps.controllerblueprints.core.*
 import org.onap.ccsdk.apps.controllerblueprints.core.utils.JacksonUtils
 import org.onap.ccsdk.apps.controllerblueprints.resource.dict.ResourceAssignment
 import org.onap.ccsdk.apps.controllerblueprints.resource.dict.ResourceDictionaryConstants
 import org.slf4j.LoggerFactory
 import org.springframework.beans.factory.config.ConfigurableBeanFactory
 import org.springframework.context.annotation.Scope
-import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate
 import org.springframework.stereotype.Service
+import java.util.*
 
 /**
  * DatabaseResourceAssignmentProcessor
  *
  * @author Kapil Singal
  */
-@Service("${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-primary-db")
+@Service("${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-processor-db")
 @Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
-open class DatabaseResourceAssignmentProcessor(private val dBLibGenericService: DBLibGenericService)
+open class DatabaseResourceAssignmentProcessor(private val bluePrintDBLibPropertySevice: BluePrintDBLibPropertySevice, private val primaryDBLibGenericService: PrimaryDBLibGenericService)
     : ResourceAssignmentProcessor() {
 
     private val logger = LoggerFactory.getLogger(DatabaseResourceAssignmentProcessor::class.java)
 
     override fun getName(): String {
-        return "${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-primary-db"
+        return "${PREFIX_RESOURCE_RESOLUTION_PROCESSOR}source-processor-db"
     }
 
     override fun process(resourceAssignment: ResourceAssignment) {
@@ -60,33 +57,16 @@ open class DatabaseResourceAssignmentProcessor(private val dBLibGenericService:
             validate(resourceAssignment)
 
             // Check if It has Input
-            val value = getFromInput(resourceAssignment)
-            if (value == null || value is MissingNode) {
-                val dName = resourceAssignment.dictionaryName
-                val dSource = resourceAssignment.dictionarySource
-                val resourceDefinition = resourceDictionaries[dName]
-                        ?: throw BluePrintProcessorException("couldn't get resource dictionary definition for $dName")
-                val resourceSource = resourceDefinition.sources[dSource]
-                        ?: throw BluePrintProcessorException("couldn't get resource definition $dName source($dSource)")
-                val resourceSourceProperties = checkNotNull(resourceSource.properties) { "failed to get source properties for $dName " }
-                val sourceProperties = JacksonUtils.getInstanceFromMap(resourceSourceProperties, DatabaseResourceSource::class.java)
-
-                val sql = checkNotNull(sourceProperties.query) { "failed to get request query for $dName under $dSource properties" }
-                val inputKeyMapping = checkNotNull(sourceProperties.inputKeyMapping) { "failed to get input-key-mappings for $dName under $dSource properties" }
-
-                val resolvedInputKeyMapping = resolveInputKeyMappingVariables(inputKeyMapping)
-
-                val resolvedSql = resolveFromInputKeyMapping(sql, resolvedInputKeyMapping)
-
-                logger.info("$dSource dictionary information : ($resolvedSql), ($inputKeyMapping), (${sourceProperties.outputKeyMapping})")
-                val jdbcTemplate = blueprintDBLibService(sourceProperties)
-
-                val rows = jdbcTemplate.queryForList(resolvedSql, resolvedInputKeyMapping)
-                if (rows.isNullOrEmpty()) {
-                    logger.warn("Failed to get $dSource result for dictionary name ($dName) the query ($resolvedSql)")
+            try {
+                val value = raRuntimeService.getInputValue(resourceAssignment.name)
+                if (value !is NullNode && value !is MissingNode) {
+                    logger.info("processor-db source template key (${resourceAssignment.name}) found from input and value is ($value)")
+                    ResourceAssignmentUtils.setResourceDataValue(resourceAssignment, raRuntimeService, value)
                 } else {
-                    populateResource(resourceAssignment, sourceProperties, rows)
+                    setValueFromDB(resourceAssignment)
                 }
+            } catch (e: BluePrintProcessorException) {
+                setValueFromDB(resourceAssignment)
             }
 
             // Check the value has populated for mandatory case
@@ -97,12 +77,36 @@ open class DatabaseResourceAssignmentProcessor(private val dBLibGenericService:
         }
     }
 
-    private fun blueprintDBLibService(sourceProperties: DatabaseResourceSource): NamedParameterJdbcTemplate {
+    private fun setValueFromDB(resourceAssignment: ResourceAssignment) {
+        val dName = resourceAssignment.dictionaryName
+        val dSource = resourceAssignment.dictionarySource
+        val resourceDefinition = resourceDictionaries[dName]
+                ?: throw BluePrintProcessorException("couldn't get resource dictionary definition for $dName")
+        val resourceSource = resourceDefinition.sources[dSource]
+                ?: throw BluePrintProcessorException("couldn't get resource definition $dName source($dSource)")
+        val resourceSourceProperties = checkNotNull(resourceSource.properties) { "failed to get source properties for $dName " }
+        val sourceProperties = JacksonUtils.getInstanceFromMap(resourceSourceProperties, DatabaseResourceSource::class.java)
+
+        val sql = checkNotNull(sourceProperties.query) { "failed to get request query for $dName under $dSource properties" }
+        val inputKeyMapping = checkNotNull(sourceProperties.inputKeyMapping) { "failed to get input-key-mappings for $dName under $dSource properties" }
+
+        logger.info("$dSource dictionary information : ($sql), ($inputKeyMapping), (${sourceProperties.outputKeyMapping})")
+        val jdbcTemplate = blueprintDBLibService(sourceProperties)
+
+        val rows = jdbcTemplate.query(sql, populateNamedParameter(inputKeyMapping))
+        if (rows.isNullOrEmpty()) {
+            logger.warn("Failed to get $dSource result for dictionary name ($dName) the query ($sql)")
+        } else {
+            populateResource(resourceAssignment, sourceProperties, rows)
+        }
+    }
+
+    private fun blueprintDBLibService(sourceProperties: DatabaseResourceSource): BluePrintDBLibGenericService {
         return if (checkNotEmpty(sourceProperties.endpointSelector)) {
             val dbPropertiesJson = raRuntimeService.resolveDSLExpression(sourceProperties.endpointSelector!!)
-            dBLibGenericService.remoteJdbcTemplate(dbPropertiesJson)
+            bluePrintDBLibPropertySevice.JdbcTemplate(dbPropertiesJson)
         } else {
-            dBLibGenericService.primaryJdbcTemplate()
+            primaryDBLibGenericService
         }
 
     }
@@ -111,9 +115,20 @@ open class DatabaseResourceAssignmentProcessor(private val dBLibGenericService:
     private fun validate(resourceAssignment: ResourceAssignment) {
         checkNotEmptyOrThrow(resourceAssignment.name, "resource assignment template key is not defined")
         checkNotEmptyOrThrow(resourceAssignment.dictionaryName, "resource assignment dictionary name is not defined for template key (${resourceAssignment.name})")
-        checkEqualsOrThrow(ResourceDictionaryConstants.SOURCE_PRIMARY_DB, resourceAssignment.dictionarySource) {
-            "resource assignment source is not ${ResourceDictionaryConstants.SOURCE_PRIMARY_DB} but it is ${resourceAssignment.dictionarySource}"
+        checkEqualsOrThrow(ResourceDictionaryConstants.SOURCE_PROCESSOR_DB, resourceAssignment.dictionarySource) {
+            "resource assignment source is not ${ResourceDictionaryConstants.SOURCE_PROCESSOR_DB} but it is ${resourceAssignment.dictionarySource}"
+        }
+    }
+
+    private fun populateNamedParameter(inputKeyMapping: Map<String, String>): Map<String, Any> {
+        val namedParameters = HashMap<String, Any>()
+        inputKeyMapping.forEach {
+            val expressionValue = raRuntimeService.getDictionaryStore(it.value).textValue()
+            logger.trace("Reference dictionary key (${it.key}) resulted in value ($expressionValue)")
+            namedParameters[it.key] = expressionValue
         }
+        logger.info("Parameter information : ({})", namedParameters)
+        return namedParameters
     }
 
     @Throws(BluePrintProcessorException::class)
@@ -126,7 +141,7 @@ open class DatabaseResourceAssignmentProcessor(private val dBLibGenericService:
         logger.info("Response processing type($type)")
 
         // Primitive Types
-        when(type) {
+        when (type) {
             in BluePrintTypes.validPrimitiveTypes() -> {
                 val dbColumnValue = rows[0][outputKeyMapping[dName]]
                 logger.info("For template key (${resourceAssignment.name}) setting value as ($dbColumnValue)")
@@ -134,7 +149,7 @@ open class DatabaseResourceAssignmentProcessor(private val dBLibGenericService:
             }
             in BluePrintTypes.validCollectionTypes() -> {
                 val entrySchemaType = returnNotEmptyOrThrow(resourceAssignment.property?.entrySchema?.type) { "Entry schema is not defined for dictionary ($dName) info" }
-                var arrayNode = JsonNodeFactory.instance.arrayNode()
+                val arrayNode = JsonNodeFactory.instance.arrayNode()
                 rows.forEach {
                     if (entrySchemaType in BluePrintTypes.validPrimitiveTypes()) {
                         val dbColumnValue = it[outputKeyMapping[dName]]
@@ -157,7 +172,7 @@ open class DatabaseResourceAssignmentProcessor(private val dBLibGenericService:
             else -> {
                 // Complex Types
                 val row = rows[0]
-                var objectNode = JsonNodeFactory.instance.objectNode()
+                val objectNode = JsonNodeFactory.instance.objectNode()
                 for (mapping in outputKeyMapping.entries) {
                     val dbColumnValue = checkNotNull(row[mapping.key])
                     val propertyTypeForDataType = ResourceAssignmentUtils.getPropertyType(raRuntimeService, type, mapping.key)