#416 Add NoCompression deflate compression level

srikanth-lingala · Mar 25, 2022 · 14281b7 · 14281b7
1 parent 6b03a60
commit 14281b7
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/src/main/java/net/lingala/zip4j/model/enums/CompressionLevel.java b/src/main/java/net/lingala/zip4j/model/enums/CompressionLevel.java
@@ -6,6 +6,10 @@
  */
 public enum CompressionLevel {
 
+  /**
+   * Level 0 - No compression
+   */
+  NO_COMPRESSION(0),
   /**
    * Level 1 Deflate compression. Fastest compression.
    */
@@ -43,7 +47,7 @@ public enum CompressionLevel {
    */
   ULTRA(9);
 
-  private int level;
+  private final int level;
 
   CompressionLevel(int level) {
     this.level = level;

diff --git a/src/test/java/net/lingala/zip4j/CreateZipFileIT.java b/src/test/java/net/lingala/zip4j/CreateZipFileIT.java
@@ -521,6 +521,12 @@ public void testCreateZipFileWithPreUltraCompressionLevel() throws IOException {
     verifyZipFileByExtractingAllFiles(generatedZipFile, outputFolder, 3);
   }
 
+  @Test
+  public void testCreateZipFileWithDeflateNoCompressionLevel() throws IOException {
+    createZipFileWithCompressionLevel(CompressionLevel.NO_COMPRESSION);
+    verifyZipFileByExtractingAllFiles(generatedZipFile, outputFolder, 3);
+  }
+
   private void testAddSymlinkThrowsExceptionForMissingTarget(ZipParameters.SymbolicLinkAction symbolicLinkAction)
       throws IOException {
     File targetFile = Paths.get(temporaryFolder.getRoot().getAbsolutePath(), "foo").toFile();