zip iterator improvement

commons-core/src/main/kotlin/ru/sokomishalov/commons/core/collections/CoroutineMapExtensions.kt

@@ -0,0 +1,23 @@
+/**
+ * Copyright 2019-2019 the original author or authors.
+ *
+ * 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.
+ */
+@file:Suppress("unused")
+
+package ru.sokomishalov.commons.core.collections
+
+
+/**
+ * @author sokomishalov
+ */

commons-core/src/main/kotlin/ru/sokomishalov/commons/core/io/IOExtensions.kt

@@ -17,9 +17,7 @@
 
 package ru.sokomishalov.commons.core.io
 
-import java.io.File
-import java.io.InputStream
-import java.io.RandomAccessFile
+import java.io.*
 import java.util.zip.ZipEntry
 import java.util.zip.ZipInputStream
 import java.util.zip.ZipOutputStream
@@ -46,6 +44,31 @@ fun File.zipFiles(filesMap: Map<String, ByteArray>) {
     }
 }
 
+fun File.unzipTo(folder: File) {
+    if (folder.exists().not()) folder.mkdir()
+
+    FileInputStream(this).use { fis ->
+        ZipInputStream(fis).use { zis ->
+            zis.toIterableEntries().forEach { ze ->
+                val newFile = File("${folder.path}/${ze.name}")
+                when {
+                    ze.isDirectory -> newFile.mkdirs()
+                    else -> {
+                        newFile.parentFile.mkdir()
+                        FileOutputStream(newFile).use { fos ->
+                            zis.copyTo(fos)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+fun File.unzipTo(path: String) {
+    unzipTo(File(path))
+}
+
 fun File.listFilesDeep(filter: (File) -> Boolean = { true }): List<File> {
     return walkTopDown()
             .maxDepth(MAX_VALUE)