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1   /*
2    * Copyright 2021 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   https://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.handler.codec.compression;
17  
18  import com.aayushatharva.brotli4j.encoder.Encoder;
19  import io.netty.util.internal.ObjectUtil;
20  
21  /**
22   * {@link BrotliOptions} holds {@link Encoder.Parameters} for
23   * Brotli compression.
24   */
25  public final class BrotliOptions implements CompressionOptions {
26  
27      private final Encoder.Parameters parameters;
28  
29      /**
30       * @see StandardCompressionOptions#brotli()
31       */
32      static final BrotliOptions DEFAULT = new BrotliOptions(
33              new Encoder.Parameters().setQuality(4).setMode(Encoder.Mode.TEXT)
34      );
35  
36      BrotliOptions(Encoder.Parameters parameters) {
37          if (!Brotli.isAvailable()) {
38              throw new IllegalStateException("Brotli is not available", Brotli.cause());
39          }
40  
41          this.parameters = ObjectUtil.checkNotNull(parameters, "Parameters");
42      }
43  
44      public Encoder.Parameters parameters() {
45          return parameters;
46      }
47  }