blob: 09444ccdd72aae463c8272f8bce83c6c255f3348 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*
*/
package org.apache.qpid.tools.utils;
import java.io.BufferedReader;
import java.io.IOException;
import java.util.StringTokenizer;
public class SimpleCommandParser implements CommandParser
{
private static final String COMMAND_SEPERATOR = ";";
/** Input source of commands */
protected BufferedReader _reader;
/** The next list of commands from the command line */
private StringBuilder _nextCommand = null;
public SimpleCommandParser(BufferedReader reader)
{
_reader = reader;
}
public boolean more()
{
return _nextCommand != null;
}
public boolean isBackground()
{
return false;
}
public String[] parse() throws IOException
{
String[] commands = null;
String input = null;
if (_nextCommand == null)
{
input = _reader.readLine();
}
else
{
input = _nextCommand.toString();
_nextCommand = null;
}
if (input == null)
{
return null;
}
StringTokenizer tok = new StringTokenizer(input, " ");
int tokenCount = tok.countTokens();
int index = 0;
if (tokenCount > 0)
{
commands = new String[tokenCount];
boolean commandComplete = false;
while (tok.hasMoreTokens())
{
String next = tok.nextToken();
if (next.equals(COMMAND_SEPERATOR))
{
commandComplete = true;
_nextCommand = new StringBuilder();
continue;
}
if (commandComplete)
{
_nextCommand.append(next);
_nextCommand.append(" ");
}
else
{
commands[index] = next;
index++;
}
}
}
//Reduce the String[] if not all the tokens were used in this command.
// i.e. there is more than one command on the line.
if (index != tokenCount)
{
String[] shortCommands = new String[index];
System.arraycopy(commands, 0, shortCommands, 0, index);
return shortCommands;
}
else
{
return commands;
}
}
}
|
