1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 package edu.internet2.middleware.grouperInstallerExt.org.apache.commons.compress.compressors.deflate;
21
22 import java.util.zip.Deflater;
23
24 /**
25 * Parameters for the Deflate compressor.
26 * @since 1.9
27 */
28 public class DeflateParameters {
29
30 private boolean zlibHeader = true;
31 private int compressionLevel = Deflater.DEFAULT_COMPRESSION;
32
33 /**
34 * Whether or not the zlib header shall be written (when
35 * compressing) or expected (when decompressing).
36 */
37 public boolean withZlibHeader() {
38 return zlibHeader;
39 }
40
41 /**
42 * Sets the zlib header presence parameter.
43 *
44 * <p>This affects whether or not the zlib header will be written
45 * (when compressing) or expected (when decompressing).</p>
46 *
47 * @param zlibHeader
48 */
49 public void setWithZlibHeader(boolean zlibHeader) {
50 this.zlibHeader = zlibHeader;
51 }
52
53 /**
54 * The compression level.
55 * @see #setCompressionLevel
56 */
57 public int getCompressionLevel() {
58 return compressionLevel;
59 }
60
61 /**
62 * Sets the compression level.
63 *
64 * @param compressionLevel the compression level (between 0 and 9)
65 * @see Deflater#NO_COMPRESSION
66 * @see Deflater#BEST_SPEED
67 * @see Deflater#DEFAULT_COMPRESSION
68 * @see Deflater#BEST_COMPRESSION
69 */
70 public void setCompressionLevel(int compressionLevel) {
71 if (compressionLevel < -1 || compressionLevel > 9) {
72 throw new IllegalArgumentException("Invalid Deflate compression level: " + compressionLevel);
73 }
74 this.compressionLevel = compressionLevel;
75 }
76
77 }