Add blueprint enrichment api

Change-Id: Idf0f05a9462418a72c716d6b96c121cf223b56eb
Issue-ID: CCSDK-1173
Signed-off-by: Muthuramalingam, Brinda Santh <brindasanth@in.ibm.com>

3 files changed, 108 insertions, 8 deletions

diff --git a/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/controller/BlueprintModelController.kt b/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/controller/BlueprintModelController.kt
index 60c07ad2c..d6ce286fc 100644
--- a/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/controller/BlueprintModelController.kt
+++ b/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/controller/BlueprintModelController.kt
@@ -17,6 +17,7 @@
 
 package org.onap.ccsdk.apps.controllerblueprints.service.controller
 
+import kotlinx.coroutines.runBlocking
 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintException
 import org.onap.ccsdk.apps.controllerblueprints.service.domain.BlueprintModelSearch
 import org.onap.ccsdk.apps.controllerblueprints.service.handler.BluePrintModelHandler
@@ -86,6 +87,14 @@ open class BlueprintModelController(private val bluePrintModelHandler: BluePrint
         return this.bluePrintModelHandler.downloadBlueprintModelFile(id)
     }
 
+    @PostMapping("/enrich", produces = [MediaType.APPLICATION_JSON_VALUE], consumes = [MediaType
+            .MULTIPART_FORM_DATA_VALUE])
+    @ResponseBody
+    @Throws(BluePrintException::class)
+    fun enrichBlueprint(@RequestPart("file") file: FilePart): ResponseEntity<Resource> = runBlocking {
+        bluePrintModelHandler.enrichBlueprint(file)
+    }
+
     @PutMapping("/publish/{id}", produces = [MediaType.APPLICATION_JSON_VALUE])
     @ResponseBody
     @Throws(BluePrintException::class)
diff --git a/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/handler/BluePrintModelHandler.kt b/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/handler/BluePrintModelHandler.kt
index 907566c32..4239abbab 100644
--- a/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/handler/BluePrintModelHandler.kt
+++ b/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/handler/BluePrintModelHandler.kt
@@ -1,6 +1,7 @@
 /*
  * Copyright © 2017-2018 AT&T Intellectual Property.
  * Modifications Copyright © 2019 Bell Canada.
+ * 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.
@@ -22,6 +23,7 @@ import org.onap.ccsdk.apps.controllerblueprints.core.common.ApplicationConstants
 import org.onap.ccsdk.apps.controllerblueprints.core.config.BluePrintLoadConfiguration
 import org.onap.ccsdk.apps.controllerblueprints.core.data.ErrorCode
 import org.onap.ccsdk.apps.controllerblueprints.core.interfaces.BluePrintCatalogService
+import org.onap.ccsdk.apps.controllerblueprints.core.interfaces.BluePrintEnhancerService
 import org.onap.ccsdk.apps.controllerblueprints.core.utils.BluePrintFileUtils
 import org.onap.ccsdk.apps.controllerblueprints.service.domain.BlueprintModel
 import org.onap.ccsdk.apps.controllerblueprints.service.domain.BlueprintModelSearch
@@ -38,7 +40,9 @@ import org.springframework.http.codec.multipart.FilePart
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 import reactor.core.publisher.Mono
+import java.io.File
 import java.io.IOException
+import java.util.*
 
 /**
  * BlueprintModelHandler Purpose: Handler service to handle the request from BlurPrintModelRest
@@ -48,10 +52,12 @@ import java.io.IOException
  */
 
 @Service
-open class BluePrintModelHandler(private val bluePrintCatalogService: BluePrintCatalogService, private val bluePrintLoadConfiguration: BluePrintLoadConfiguration,
+open class BluePrintModelHandler(private val bluePrintCatalogService: BluePrintCatalogService,
+                                 private val bluePrintLoadConfiguration: BluePrintLoadConfiguration,
                                  private val blueprintModelSearchRepository: ControllerBlueprintModelSearchRepository,
                                  private val blueprintModelRepository: ControllerBlueprintModelRepository,
-                                 private val blueprintModelContentRepository: ControllerBlueprintModelContentRepository) {
+                                 private val blueprintModelContentRepository: ControllerBlueprintModelContentRepository,
+                                 private val bluePrintEnhancerService: BluePrintEnhancerService) {
 
     /**
      * This is a getAllBlueprintModel method to retrieve all the BlueprintModel in Database
@@ -275,6 +281,40 @@ open class BluePrintModelHandler(private val bluePrintCatalogService: BluePrintC
         }
     }
 
+    /**
+     * This is a CBA enrichBlueprint method
+     * Save the Zip File in archive location and extract the cba content.
+     * Populate the Enhancement Location
+     * Enhance the CBA content
+     * Compress the Enhanced Content
+     * Return back the the compressed content back to the caller.
+     *
+     * @param filePart filePart
+     * @return ResponseEntity<Resource>
+     * @throws BluePrintException BluePrintException
+     */
+    @Throws(BluePrintException::class)
+    open suspend fun enrichBlueprint(filePart: FilePart): ResponseEntity<Resource> {
+        val enhanceId = UUID.randomUUID().toString()
+        val blueprintArchive = bluePrintLoadConfiguration.blueprintArchivePath.plus(File.separator).plus(enhanceId)
+        val blueprintEnrichmentDir = bluePrintLoadConfiguration.blueprintEnrichmentPath.plus(File.separator).plus(enhanceId)
+
+        try {
+            BluePrintEnhancerUtils.decompressFilePart(filePart, blueprintArchive, blueprintEnrichmentDir)
+
+            // Enhance the Blue Prints
+            bluePrintEnhancerService.enhance(blueprintEnrichmentDir)
+
+            return BluePrintEnhancerUtils.compressToFilePart(blueprintEnrichmentDir, blueprintArchive)
+
+        } catch (e: IOException) {
+            throw BluePrintException(ErrorCode.IO_FILE_INTERRUPT.value,
+                    String.format("I/O Error while uploading the CBA file: %s", e.message), e)
+        } finally {
+            BluePrintEnhancerUtils.cleanEnhancer(blueprintArchive, blueprintEnrichmentDir)
+        }
+    }
+
     companion object {
 
         private const val BLUEPRINT_MODEL_ID_FAILURE_MSG = "failed to get blueprint model id(%s) from repo"
diff --git a/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/utils/BluePrintEnhancerUtils.kt b/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/utils/BluePrintEnhancerUtils.kt
index 5e715f784..02140ebf7 100644
--- a/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/utils/BluePrintEnhancerUtils.kt
+++ b/ms/controllerblueprints/modules/service/src/main/kotlin/org/onap/ccsdk/apps/controllerblueprints/service/utils/BluePrintEnhancerUtils.kt
@@ -1,6 +1,7 @@
 /*
  * Copyright © 2017-2018 AT&T Intellectual Property.
  * Modifications Copyright © 2019 Bell Canada.
+ * 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.
@@ -17,20 +18,29 @@
 
 package org.onap.ccsdk.apps.controllerblueprints.service.utils
 
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.reactive.awaitSingle
+import kotlinx.coroutines.withContext
+import org.apache.commons.io.FileUtils
 import org.onap.ccsdk.apps.controllerblueprints.core.BluePrintException
-import org.onap.ccsdk.apps.controllerblueprints.core.data.ArtifactType
-import org.onap.ccsdk.apps.controllerblueprints.core.data.DataType
-import org.onap.ccsdk.apps.controllerblueprints.core.data.ErrorCode
-import org.onap.ccsdk.apps.controllerblueprints.core.data.NodeType
-import org.onap.ccsdk.apps.controllerblueprints.core.data.RelationshipType
+import org.onap.ccsdk.apps.controllerblueprints.core.data.*
+import org.onap.ccsdk.apps.controllerblueprints.core.deCompress
 import org.onap.ccsdk.apps.controllerblueprints.core.interfaces.BluePrintRepoService
+import org.onap.ccsdk.apps.controllerblueprints.core.reCreateDirs
 import org.onap.ccsdk.apps.controllerblueprints.core.service.BluePrintContext
+import org.onap.ccsdk.apps.controllerblueprints.core.utils.BluePrintArchiveUtils
+import org.springframework.core.io.ByteArrayResource
+import org.springframework.core.io.Resource
+import org.springframework.http.HttpHeaders
+import org.springframework.http.MediaType
+import org.springframework.http.ResponseEntity
 import org.springframework.http.codec.multipart.FilePart
 import org.springframework.util.StringUtils
 import reactor.core.publisher.Mono
 import java.io.File
 import java.io.IOException
 import java.nio.file.Path
+import java.nio.file.Paths
 import java.util.*
 
 
@@ -47,7 +57,7 @@ class BluePrintEnhancerUtils {
         }
 
         fun populateRelationshipType(bluePrintContext: BluePrintContext, bluePrintRepoService: BluePrintRepoService,
-                             relationshipName: String): RelationshipType {
+                                     relationshipName: String): RelationshipType {
 
             val relationshipType = bluePrintContext.serviceTemplate.relationshipTypes?.get(relationshipName)
                     ?: bluePrintRepoService.getRelationshipType(relationshipName)
@@ -77,6 +87,47 @@ class BluePrintEnhancerUtils {
             return artifactType
         }
 
+        suspend fun copyFromFilePart(filePart: FilePart, targetFile: File): File {
+            // Delete the Directory
+            targetFile.deleteRecursively()
+            return filePart.transferTo(targetFile)
+                    .thenReturn(targetFile)
+                    .awaitSingle()
+        }
+
+        suspend fun decompressFilePart(filePart: FilePart, archiveDir: String, enhanceDir: String): File {
+            //Recreate the Base Directories
+            Paths.get(archiveDir).toFile().reCreateDirs()
+            Paths.get(enhanceDir).toFile().reCreateDirs()
+
+            val filePartFile = Paths.get(archiveDir, "cba.zip").toFile()
+            // Copy the File Part to ZIP
+            copyFromFilePart(filePart, filePartFile)
+            val deCompressFileName = Paths.get(enhanceDir).toUri().path
+            return filePartFile.deCompress(deCompressFileName)
+        }
+
+        suspend fun compressToFilePart(enhanceDir: String, archiveDir: String): ResponseEntity<Resource> {
+            val compressedFile = Paths.get(archiveDir, "enhanced-cba.zip").toFile()
+            BluePrintArchiveUtils.compress(Paths.get(enhanceDir).toFile(), compressedFile, true)
+            return prepareResourceEntity(compressedFile.name, compressedFile.readBytes())
+        }
+
+        suspend fun prepareResourceEntity(fileName: String, file: ByteArray): ResponseEntity<Resource> {
+            return ResponseEntity.ok()
+                    .contentType(MediaType.parseMediaType("text/plain"))
+                    .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"$fileName\"")
+                    .body(ByteArrayResource(file))
+        }
+
+        suspend fun cleanEnhancer(archiveLocation: String, enhancementLocation: String) = withContext(Dispatchers.Default) {
+            val enrichDir = File(enhancementLocation)
+            FileUtils.forceDeleteOnExit(enrichDir)
+
+            val archiveDir = File(archiveLocation)
+            FileUtils.forceDeleteOnExit(archiveDir)
+        }
+
         /**
          * This is a saveCBAFile method
          * take a [FilePart], transfer it to disk using a Flux of FilePart and return a [Mono] representing the CBA file name