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1   /*
2    * #%L
3    * JavaHg
4    * %%
5    * Copyright (C) 2011 aragost Trifork ag
6    * %%
7    * Permission is hereby granted, free of charge, to any person obtaining a copy
8    * of this software and associated documentation files (the "Software"), to deal
9    * in the Software without restriction, including without limitation the rights
10   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11   * copies of the Software, and to permit persons to whom the Software is
12   * furnished to do so, subject to the following conditions:
13   * 
14   * The above copyright notice and this permission notice shall be included in
15   * all copies or substantial portions of the Software.
16   * 
17   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23   * THE SOFTWARE.
24   * #L%
25   */
26  package com.aragost.javahg.internals;
27  
28  import java.io.IOException;
29  import java.nio.charset.MalformedInputException;
30  
31  public abstract class BaseStatusLine<T extends Enum<?>> {
32  
33      private T type;
34  
35      private String fileName;
36  
37      public T getType() {
38          return type;
39      }
40  
41      public String getFileName() {
42          return fileName;
43      }
44  
45      protected abstract T typeForChar(char ch);
46  
47      /**
48       * Read and decode a line from an input stream. Empty the stream
49       * if a {@link MalformedInputException} occurs.
50       * 
51       * @param stream
52       *            the input stream
53       * @throws IOException
54       *             passed through from the underlying stream
55       */
56      protected void initFromStream(HgInputStream stream) throws IOException {
57          char ch = (char) stream.read();
58          stream.match(' ');
59          this.fileName = stream.textUpTo('\n');
60          this.type = typeForChar(ch);
61      }
62  
63      public String toString() {
64          return (this.type != null ? this.type : "-") + " " + this.fileName;
65      }
66  
67  }