1 karl 1.12 //%2004////////////////////////////////////////////////////////////////////////
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2 mike 1.2 //
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3 karl 1.12 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
4 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
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6 karl 1.11 // IBM Corp.; EMC Corporation, The Open Group.
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7 karl 1.12 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
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9 mike 1.2 //
10 // Permission is hereby granted, free of charge, to any person obtaining a copy
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11 kumpf 1.6 // of this software and associated documentation files (the "Software"), to
12 // deal in the Software without restriction, including without limitation the
13 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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14 mike 1.2 // sell copies of the Software, and to permit persons to whom the Software is
15 // furnished to do so, subject to the following conditions:
16 //
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17 kumpf 1.6 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
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18 mike 1.2 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
19 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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20 kumpf 1.6 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
21 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
22 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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23 mike 1.2 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 //
26 //==============================================================================
27 //
28 // Author: Mike Brasher (mbrasher@bmc.com)
29 //
30 // Modified By:
31 //
32 //%/////////////////////////////////////////////////////////////////////////////
33
34 #include <Pegasus/Common/Config.h>
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35 kumpf 1.7 #include <Pegasus/Common/InternalException.h>
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36 mike 1.3 #include <Pegasus/Common/Destroyer.h>
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37 kumpf 1.4 #include <Pegasus/Common/Tracer.h>
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38 kumpf 1.5 #include <Pegasus/Common/PegasusVersion.h>
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39 humberto 1.13 #include <Pegasus/Common/IPC.h>
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40 mike 1.2 #include <iostream>
41 #include "WQLParser.h"
42 #include "WQLParserState.h"
43
44 PEGASUS_USING_STD;
45
46 extern int WQL_parse();
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47 kumpf 1.10 extern void WQL_restart (FILE *input_file);
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48 mike 1.2
49 PEGASUS_NAMESPACE_BEGIN
50
51 WQLParserState* globalParserState = 0;
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52 humberto 1.13 static Mutex WQL_mutex;
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53 mike 1.2
54 void WQLParser::parse(
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55 mike 1.3 const char* text,
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56 mike 1.2 WQLSelectStatement& statement)
57 {
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58 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::parse");
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59 humberto 1.13
60 AutoMutex mtx(WQL_mutex);
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61 kumpf 1.4
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62 mike 1.3 if (!text)
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63 kumpf 1.4 {
64 PEG_METHOD_EXIT();
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65 mike 1.3 throw NullPointer();
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66 kumpf 1.4 }
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67 mike 1.3
68 statement.clear();
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69 mike 1.2
70 globalParserState = new WQLParserState;
71 globalParserState->error = false;
72 globalParserState->text = text;
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73 mike 1.3 globalParserState->textSize = strlen(text) + 1;
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74 mike 1.2 globalParserState->offset = 0;
75 globalParserState->statement = &statement;
76
77 WQL_parse();
78
79 if (globalParserState->error)
80 {
81 String errorMessage = globalParserState->errorMessage;
82 cleanup();
83 delete globalParserState;
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84 kumpf 1.4 PEG_METHOD_EXIT();
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85 mike 1.2 throw ParseError(errorMessage);
86 }
87
88 cleanup();
89 delete globalParserState;
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90 kumpf 1.4 PEG_METHOD_EXIT();
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91 mike 1.2 }
92
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93 mike 1.3 void WQLParser::parse(
94 const Array<Sint8>& text,
95 WQLSelectStatement& statement)
96 {
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97 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::parse");
98
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99 mike 1.3 if (text.size() == 0 || text[text.size() - 1] != '\0')
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100 kumpf 1.4 {
101 PEG_METHOD_EXIT();
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102 mike 1.3 throw MissingNullTerminator();
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103 kumpf 1.4 }
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104 mike 1.3
105 parse(text.getData(), statement);
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106 kumpf 1.4 PEG_METHOD_EXIT();
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107 mike 1.3 }
108
109 void WQLParser::parse(
110 const String& text,
111 WQLSelectStatement& statement)
112 {
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113 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::parse");
114
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115 kumpf 1.9 parse(text.getCString(), statement);
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116 kumpf 1.4
117 PEG_METHOD_EXIT();
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118 mike 1.3 }
119
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120 mike 1.2 void WQLParser::cleanup()
121 {
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122 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::cleanup");
123
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124 mike 1.2 Array<char*>& arr = globalParserState->outstandingStrings;
125
126 for (Uint32 i = 0, n = arr.size(); i < n; i++)
127 delete [] arr[i];
128
129 arr.clear();
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130 kumpf 1.4
131 PEG_METHOD_EXIT();
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132 mike 1.2 }
133
134 PEGASUS_NAMESPACE_END
135
136 PEGASUS_USING_PEGASUS;
137
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138 kumpf 1.8 int WQL_error(const char* errorMessage)
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139 mike 1.2 {
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140 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQL_error");
141
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142 mike 1.2 globalParserState->error = true;
143 globalParserState->errorMessage = errorMessage;
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144 kumpf 1.10
145 //
146 // flex does not automatically flush the input buffer in case of error
147 //
148 WQL_restart (0);
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149 kumpf 1.4
150 PEG_METHOD_EXIT();
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151 mike 1.2 return -1;
152 }
153
154 int WQLInput(char* buffer, int& numRead, int numRequested)
155 {
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156 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLInput");
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157 mike 1.2 //
158 // Be sure to account for the null terminator (the size of the text will
159 // be one or more; this is fixed checked beforehand by WQLParser::parse()).
160 //
161
162 int remaining =
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163 mike 1.3 globalParserState->textSize - globalParserState->offset - 1;
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164 mike 1.2
165 if (remaining == 0)
166 {
167 numRead = 0;
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168 kumpf 1.4 PEG_METHOD_EXIT();
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169 mike 1.2 return 0;
170 }
171
172 if (remaining < numRequested)
173 numRequested = remaining;
174
175 memcpy(buffer,
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176 mike 1.3 globalParserState->text + globalParserState->offset,
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177 mike 1.2 numRequested);
178
179 globalParserState->offset += numRequested;
180 numRead = numRequested;
181
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182 kumpf 1.4 PEG_METHOD_EXIT();
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183 mike 1.2 return numRead;
184 }
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Return to
WQLParser.cpp
CVS log
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