Clover Coverage Report - Atlassian Core
Coverage timestamp: Sun Nov 30 2008 18:33:35 CST
Overview   Package   File
    FRAMES   NO FRAMES     
31   104   17   5.17
14   78   0.55   6
6     2.83  
1    
 
 
  BOMZipFileInputStream       Line # 12 31 17 0% 0.0
 
No Tests
 
1    package com.atlassian.core.util.xml;
2   
3    import com.atlassian.core.util.DataUtils;
4   
5    import java.io.*;
6    import java.util.zip.ZipInputStream;
7   
8    /**
9    * An input streams that handles Unicode Byte-Order Mark (BOM) marker within a normal file as well as a ZIP file.
10    * Distilled and adapted from http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6206835
11    */
 
12    public class BOMZipFileInputStream extends InputStream
13    {
14    // ------------------------------------------------------------------------------------------------------- Constants
15    public final static byte[] UTF32BEBOMBYTES = new byte[]{(byte) 0x00, (byte) 0x00, (byte) 0xFE, (byte) 0xFF,};
16    public final static byte[] UTF32LEBOMBYTES = new byte[]{(byte) 0xFF, (byte) 0xFE, (byte) 0x00, (byte) 0x00,};
17    public final static byte[] UTF16BEBOMBYTES = new byte[]{(byte) 0xFE, (byte) 0xFF,};
18    public final static byte[] UTF16LEBOMBYTES = new byte[]{(byte) 0xFF, (byte) 0xFE,};
19    public final static byte[] UTF8BOMBYTES = new byte[]{(byte) 0xEF, (byte) 0xBB, (byte) 0xBF,};
20    public final static byte[][] BOMBYTES = new byte[][]{
21    UTF32BEBOMBYTES,
22    UTF32LEBOMBYTES,
23    UTF16BEBOMBYTES,
24    UTF16LEBOMBYTES,
25    UTF8BOMBYTES,
26    };
27    public final static int NONE = -1;
28   
29    /**
30    * No bom sequence is longer than 4 bytes
31    */
32    public final static int MAXBOMBYTES = 4;
33   
34    // ------------------------------------------------------------------------------------------------- Type Properties
35    private InputStream daStream;
36   
37    // ---------------------------------------------------------------------------------------------------- Dependencies
38    // ---------------------------------------------------------------------------------------------------- Constructors
 
39  0 toggle public BOMZipFileInputStream(String fileName) throws IOException, FileNotFoundException
40    {
41  0 int BOMType = getBOMType(fileName);
42  0 int skipBytes = getSkipBytes(BOMType);
43  0 InputStream fIn = getFileInputStream(fileName);
44  0 if (skipBytes > 0)
45    {
46  0 fIn.skip(skipBytes);
47    }
48  0 daStream = fIn;
49    }
50   
51    // -------------------------------------------------------------------------------------------------- Public Methods
 
52  0 toggle public int read() throws IOException
53    {
54  0 return daStream.read();
55    }
56   
57    // -------------------------------------------------------------------------------------------------- Helper Methods
58   
 
59  0 toggle private InputStream getFileInputStream(String filename) throws IOException
60    {
61  0 InputStream is = null;
62  0 FileInputStream fileInputStream = new FileInputStream(filename);
63  0 if (filename != null && filename.trim().endsWith(DataUtils.SUFFIX_ZIP))
64    {
65  0 ZipInputStream input = new ZipInputStream(new BufferedInputStream(fileInputStream));
66  0 input.getNextEntry();
67  0 is = input;
68    }
69    else
70    {
71  0 is = new BufferedInputStream(fileInputStream);
72    }
73  0 return is;
74    }
75   
 
76  0 toggle private int getBOMType(String _f) throws IOException
77    {
78  0 InputStream fileInputStream = getFileInputStream(_f);
79  0 byte[] buff = new byte[MAXBOMBYTES];
80  0 int read = fileInputStream.read(buff);
81  0 int bomType = getBOMType(buff, read);
82  0 fileInputStream.close();
83  0 return bomType;
84    }
85   
 
86  0 toggle private int getSkipBytes(int bomType)
87    {
88  0 if (bomType < 0 || bomType >= BOMBYTES.length) return 0;
89  0 return BOMBYTES[bomType].length;
90    }
91   
 
92  0 toggle private int getBOMType(byte[] _bomBytes, int _length)
93    {
94  0 for (int i = 0; i < BOMBYTES.length; i++)
95    {
96  0 for (int j = 0; j < _length && j < BOMBYTES[i].length; j++)
97    {
98  0 if (_bomBytes[j] != BOMBYTES[i][j]) break;
99  0 if (_bomBytes[j] == BOMBYTES[i][j] && j == BOMBYTES[i].length - 1) return i;
100    }
101    }
102  0 return NONE;
103    }
104    }
 
CloverReport generated by Clover Code Coverage v2.1.0
Sun Nov 30 2008 18:34:39 CST.		   Clover: Commercial License registered to Atlassian.