Add declarative acceptance tests

First two UATs are for blueprints Echo and "PNF Configuration".

The body of the ODL mount request was changed from XML to JSON,
so it can be represented in a YAML file.

Initial documentation about the UATs can be found at
components/model-catalog/blueprint-model/uat-blueprints/README.md

BluePrintArchiveUtils.recurseFiles() replaced by compressFolder() that
uses native Java 7. Removed commons-compress as dependency since is no
longer used.

Change-Id: I96a584ae12ca009f90fe8fe9485eb57ce05e8add
Issue-ID: CCSDK-1569
Signed-off-by: Eliezio Oliveira <eliezio.oliveira@est.tech>

2 files changed, 71 insertions, 40 deletions

diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/FileExtensionFunctions.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/FileExtensionFunctions.kt
index 18091e630..518e9b236 100644
--- a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/FileExtensionFunctions.kt
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/FileExtensionFunctions.kt
@@ -52,7 +52,7 @@ fun File.compress(targetZipFileName: String): File {
  * Compress the current Dir to the target zip file and return the target zip file
  */
 fun File.compress(targetZipFile: File): File {
-    BluePrintArchiveUtils.compress(this, targetZipFile, true)
+    BluePrintArchiveUtils.compress(this, targetZipFile)
     return targetZipFile
 }
 
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/utils/BluePrintArchiveUtils.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/utils/BluePrintArchiveUtils.kt
index d3670419e..dcfa07feb 100755
--- a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/utils/BluePrintArchiveUtils.kt
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/utils/BluePrintArchiveUtils.kt
@@ -1,6 +1,7 @@
 /*
  * Copyright © 2017-2018 AT&T Intellectual Property.
  * Modifications Copyright © 2019 Bell Canada.
+ * Modifications Copyright © 2019 Nordix Foundation.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,17 +18,26 @@
 
 package org.onap.ccsdk.cds.controllerblueprints.core.utils
 
-import org.apache.commons.compress.archivers.zip.ZipArchiveEntry
-import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream
-import org.apache.commons.io.IOUtils
+import com.google.common.base.Predicates
 import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
 import org.slf4j.LoggerFactory
 import java.io.BufferedInputStream
+import java.io.ByteArrayOutputStream
 import java.io.File
-import java.io.FileInputStream
+import java.io.FileOutputStream
 import java.io.IOException
+import java.io.OutputStream
 import java.nio.charset.Charset
+import java.nio.file.FileVisitResult
+import java.nio.file.Files
+import java.nio.file.Path
+import java.nio.file.SimpleFileVisitor
+import java.nio.file.attribute.BasicFileAttributes
+import java.util.function.Predicate
+import java.util.zip.Deflater
+import java.util.zip.ZipEntry
 import java.util.zip.ZipFile
+import java.util.zip.ZipOutputStream
 
 class BluePrintArchiveUtils {
 
@@ -39,14 +49,14 @@ class BluePrintArchiveUtils {
          *
          * @param source the base directory
          * @param destination the output filename
-         * @param absolute store absolute filepath (from directory) or only filename
          * @return True if OK
          */
-        fun compress(source: File, destination: File, absolute: Boolean): Boolean {
+        fun compress(source: File, destination: File): Boolean {
             try {
                 destination.createNewFile()
-                ZipArchiveOutputStream(destination).use {
-                    recurseFiles(source, source, it, absolute)
+                val ignoreZipFiles = Predicate<Path> { path -> !path.endsWith(".zip") && !path.endsWith(".ZIP") }
+                FileOutputStream(destination).use { out ->
+                    compressFolder(source.toPath(), out, pathFilter = ignoreZipFiles)
                 }
             } catch (e: Exception) {
                 log.error("Fail to compress folder($source) to path(${destination.path})", e)
@@ -56,40 +66,61 @@ class BluePrintArchiveUtils {
         }
 
         /**
-         * Recursive traversal to add files
-         *
-         * @param root
-         * @param file
-         * @param zaos
-         * @param absolute
-         * @throws IOException
+         * In-memory compress an entire folder.
          */
-        @Throws(IOException::class)
-        private fun recurseFiles(root: File, file: File, zaos: ZipArchiveOutputStream,
-                                 absolute: Boolean) {
-            if (file.isDirectory) {
-                // recursive call
-                val files = file.listFiles()
-                for (fileChild in files!!) {
-                    recurseFiles(root, fileChild, zaos, absolute)
-                }
-            } else if (!file.name.endsWith(".zip") && !file.name.endsWith(".ZIP")) {
-                val filename = if (absolute) {
-                    file.absolutePath.substring(root.absolutePath.length)
-                } else {
-                    file.name
-                }
-                val zae = ZipArchiveEntry(filename)
-                zae.size = file.length()
-                zaos.putArchiveEntry(zae)
-                FileInputStream(file).use {
-                    IOUtils.copy(it, zaos)
-                    it.close()
-                }
-                zaos.closeArchiveEntry()
-            }
+        fun compressToBytes(baseDir: Path, compressionLevel: Int = Deflater.NO_COMPRESSION): ByteArray {
+            return compressFolder(baseDir, ByteArrayOutputStream(), compressionLevel = compressionLevel)
+                    .toByteArray()
         }
 
+        /**
+         * Compress an entire folder.
+         *
+         * @param baseDir path of base folder to be packaged.
+         * @param output the output stream
+         * @param pathFilter filter to ignore files based on its path.
+         * @param compressionLevel the wanted compression level.
+         * @param fixedModificationTime to force every entry to have this modification time.
+         * Useful for reproducible operations, like tests, for example.
+         */
+        private fun <T> compressFolder(baseDir: Path, output: T,
+                                       pathFilter: Predicate<Path> = Predicates.alwaysTrue(),
+                                       compressionLevel: Int = Deflater.DEFAULT_COMPRESSION,
+                                       fixedModificationTime: Long? = null): T
+                where T : OutputStream {
+            ZipOutputStream(output)
+                    .apply { setLevel(compressionLevel) }
+                    .use { zos ->
+                        Files.walkFileTree(baseDir, object : SimpleFileVisitor<Path>() {
+                            @Throws(IOException::class)
+                            override fun visitFile(file: Path, attrs: BasicFileAttributes): FileVisitResult {
+                                if (pathFilter.test(file)) {
+                                    val zipEntry = ZipEntry(baseDir.relativize(file).toString())
+                                    fixedModificationTime?.let {
+                                        zipEntry.time = it
+                                    }
+                                    zipEntry.time = 0;
+                                    zos.putNextEntry(zipEntry)
+                                    Files.copy(file, zos)
+                                    zos.closeEntry()
+                                }
+                                return FileVisitResult.CONTINUE
+                            }
+
+                            @Throws(IOException::class)
+                            override fun preVisitDirectory(dir: Path, attrs: BasicFileAttributes): FileVisitResult {
+                                val zipEntry = ZipEntry(baseDir.relativize(dir).toString() + "/")
+                                fixedModificationTime?.let {
+                                    zipEntry.time = it
+                                }
+                                zos.putNextEntry(zipEntry)
+                                zos.closeEntry()
+                                return FileVisitResult.CONTINUE
+                            }
+                        })
+                    }
+            return output
+        }
 
         fun deCompress(zipFile: File, targetPath: String): File {
             val zip = ZipFile(zipFile, Charset.defaultCharset())