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1   /*
2    * Copyright 2016 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License, version 2.0 (the
5    * "License"); you may not use this file except in compliance with the License. You may obtain a
6    * copy of the License at:
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software distributed under the License
11   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12   * or implied. See the License for the specific language governing permissions and limitations under
13   * the License.
14   */
15  
16  package io.netty.handler.codec.redis;
17  
18  import io.netty.util.internal.ObjectUtil;
19  import io.netty.util.internal.StringUtil;
20  import io.netty.util.internal.UnstableApi;
21  
22  /**
23   * Abstract class for Simple Strings or Errors.
24   */
25  @UnstableApi
26  public abstract class AbstractStringRedisMessage implements RedisMessage {
27  
28      private final String content;
29  
30      AbstractStringRedisMessage(String content) {
31          this.content = ObjectUtil.checkNotNull(content, "content");
32      }
33  
34      /**
35       * Get string content of this {@link AbstractStringRedisMessage}.
36       *
37       * @return content of this message.
38       */
39      public final String content() {
40          return content;
41      }
42  
43      @Override
44      public String toString() {
45          return new StringBuilder(StringUtil.simpleClassName(this))
46                  .append('[')
47                  .append("content=")
48                  .append(content)
49                  .append(']').toString();
50      }
51  
52  }