Maven Clover report

Clover coverage report - Maven Clover report

Coverage timestamp: Sun Aug 20 2006 04:01:04 PDT

FRAMES NO FRAMES

file stats:	LOC:	159		Methods:	5
	NCLOC:	100		Classes:	1

Source file

Conditionals

Statements

Methods

TOTAL

XTextEncoder.java

1		/**
2		*
3		* Copyright 2003-2004 The Apache Software Foundation
4		*
5		* Licensed under the Apache License, Version 2.0 (the "License");
6		* you may not use this file except in compliance with the License.
7		* You may obtain a copy of the License at
8		*
9		* http://www.apache.org/licenses/LICENSE-2.0
10		*
11		* Unless required by applicable law or agreed to in writing, software
12		* distributed under the License is distributed on an "AS IS" BASIS,
13		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14		* See the License for the specific language governing permissions and
15		* limitations under the License.
16		*/
17
18		package org.apache.geronimo.mail.util;
19
20		import java.io.IOException;
21		import java.io.OutputStream;
22
23		public class XTextEncoder
24		implements Encoder
25		{
26		protected final byte[] encodingTable =
27		{
28		(byte)'0', (byte)'1', (byte)'2', (byte)'3', (byte)'4', (byte)'5', (byte)'6', (byte)'7',
29		(byte)'8', (byte)'9', (byte)'A', (byte)'B', (byte)'C', (byte)'D', (byte)'E', (byte)'F'
30		};
31
32		/*
33		* set up the decoding table.
34		*/
35		protected final byte[] decodingTable = new byte[128];
36
37	0	protected void initialiseDecodingTable()
38		{
39	0	for (int i = 0; i < encodingTable.length; i++)
40		{
41	0	decodingTable[encodingTable[i]] = (byte)i;
42		}
43		}
44
45	0	public XTextEncoder()
46		{
47	0	initialiseDecodingTable();
48		}
49
50		/**
51		* encode the input data producing an XText output stream.
52		*
53		* @return the number of bytes produced.
54		*/
55	0	public int encode(
56		byte[] data,
57		int off,
58		int length,
59		OutputStream out)
60		throws IOException
61		{
62	0	int bytesWritten = 0;
63
64	0	for (int i = off; i < (off + length); i++)
65		{
66	0	int v = data[i] & 0xff;
67		// character tha must be encoded? Prefix with a '+' and encode in hex.
68	0	if (v < 33 \|\| v > 126 \|\| v == '+' \|\| v == '+') {
69	0	out.write((byte)'+');
70	0	out.write(encodingTable[(v >>> 4)]);
71	0	out.write(encodingTable[v & 0xf]);
72	0	bytesWritten += 3;
73		}
74		else {
75		// add unchanged.
76	0	out.write((byte)v);
77	0	bytesWritten++;
78		}
79		}
80
81	0	return bytesWritten;
82		}
83
84
85		/**
86		* decode the xtext encoded byte data writing it to the given output stream
87		*
88		* @return the number of bytes produced.
89		*/
90	0	public int decode(
91		byte[] data,
92		int off,
93		int length,
94		OutputStream out)
95		throws IOException
96		{
97	0	byte[] bytes;
98	0	byte b1, b2;
99	0	int outLen = 0;
100
101	0	int end = off + length;
102
103	0	int i = off;
104	0	while (i < end)
105		{
106	0	byte v = data[i++];
107		// a plus is a hex character marker, need to decode a hex value.
108	0	if (v == '+') {
109	0	b1 = decodingTable[data[i++]];
110	0	b2 = decodingTable[data[i++]];
111	0	out.write((b1 << 4) \| b2);
112		}
113		else {
114		// copied over unchanged.
115	0	out.write(v);
116		}
117		// always just one byte added
118	0	outLen++;
119		}
120
121	0	return outLen;
122		}
123
124		/**
125		* decode the xtext encoded String data writing it to the given output stream.
126		*
127		* @return the number of bytes produced.
128		*/
129	0	public int decode(
130		String data,
131		OutputStream out)
132		throws IOException
133		{
134	0	byte[] bytes;
135	0	byte b1, b2, b3, b4;
136	0	int length = 0;
137
138	0	int end = data.length();
139
140	0	int i = 0;
141	0	while (i < end)
142		{
143	0	char v = data.charAt(i++);
144	0	if (v == '+') {
145	0	b1 = decodingTable[data.charAt(i++)];
146	0	b2 = decodingTable[data.charAt(i++)];
147
148	0	out.write((b1 << 4) \| b2);
149		}
150		else {
151	0	out.write((byte)v);
152		}
153	0	length++;
154		}
155
156	0	return length;
157		}
158		}
159