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1
26
27 package net.sourceforge.groboutils.codecoverage.v2.datastore;
28
29 import java.io.IOException  ;
30 import java.io.Reader ;
31
32
39 class ReadUtil
40 {
41
46 public static final String readTo( Reader in, char val )
47 throws IOException
48 {
49 StringBuffer sb = new StringBuffer ();
50 int c = in.read();
51 while (c != -1 && (char)c != val)
52 {
53 sb.append( (char)c );
54 c = in.read();
55 }
56 if (c == -1)
57 {
58 throw new IOException ( "Expected '"+val+
59 "', but found end-of-stream." );
60 }
61
62 return sb.toString();
63 }
64
65
66 public static final String readCount( Reader in, int count )
67 throws IOException
68 {
69 char c[] = new char[ count ];
70 int read = in.read( c, 0, count );
71 if (read < 0)
72 {
73 throw new IOException ( "Expected to read "+(count)+
74 " more characters, but encountered end-of-stream." );
75 }
76 int totRead = read;
77 while (totRead < count)
78 {
79 read = in.read( c, totRead, (count - totRead) );
80 if (read < 0)
81 {
82 throw new IOException ( "Expected to read "+(count-totRead)+
83 " more characters, but encountered end-of-stream." );
84 }
85 totRead += read;
86 }
87
88 return new String ( c );
89 }
90
91
92
93 public static final int toInt( String s )
94 throws IOException
95 {
96 if (s == null || s.length() <= 0)
97 {
98 throw new IOException (
99 "Invalid empty string; expected an integer." );
100 }
101 try
102 {
103 int i = Integer.parseInt( s );
104 return i;
105 }
106 catch (NumberFormatException ex)
107 {
108 throw new IOException ( "String '"+s+"' is not an integer." );
109 }
110 }
111
112
113
114
115 public static final long toLong( String s )
116 throws IOException
117 {
118 if (s == null || s.length() <= 0)
119 {
120 throw new IOException (
121 "Invalid empty string; expected a long integer." );
122 }
123 try
124 {
125 long i = Long.parseLong( s );
126 return i;
127 }
128 catch (NumberFormatException ex)
129 {
130 throw new IOException ( "String '"+s+"' is not a long integer." );
131 }
132 }
133
134 }
135 |
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