1 karl 1.20 //%2006////////////////////////////////////////////////////////////////////////
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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 karl 1.16 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
10 // EMC Corporation; VERITAS Software Corporation; The Open Group.
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11 karl 1.20 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
12 // EMC Corporation; Symantec Corporation; The Open Group.
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13 mike 1.2 //
14 // Permission is hereby granted, free of charge, to any person obtaining a copy
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15 kumpf 1.6 // of this software and associated documentation files (the "Software"), to
16 // deal in the Software without restriction, including without limitation the
17 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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18 mike 1.2 // sell copies of the Software, and to permit persons to whom the Software is
19 // furnished to do so, subject to the following conditions:
20 //
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21 kumpf 1.6 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
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22 mike 1.2 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
23 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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24 kumpf 1.6 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
25 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
26 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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27 mike 1.2 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 //==============================================================================
31 //
32 // Author: Mike Brasher (mbrasher@bmc.com)
33 //
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34 david.dillard 1.14 // Modified By: David Dillard, VERITAS Software Corp.
35 // (david.dillard@veritas.com)
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36 joyce.j 1.15 // Josephine Eskaline Joyce (jojustin@in.ibm.com) for PEP#101
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37 mike 1.2 //
38 //%/////////////////////////////////////////////////////////////////////////////
39
40 #include <Pegasus/Common/Config.h>
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41 kumpf 1.7 #include <Pegasus/Common/InternalException.h>
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42 kumpf 1.4 #include <Pegasus/Common/Tracer.h>
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43 kumpf 1.5 #include <Pegasus/Common/PegasusVersion.h>
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44 humberto 1.13 #include <Pegasus/Common/IPC.h>
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45 mike 1.2 #include <iostream>
46 #include "WQLParser.h"
47 #include "WQLParserState.h"
48
49 PEGASUS_USING_STD;
50
51 extern int WQL_parse();
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52 kumpf 1.10 extern void WQL_restart (FILE *input_file);
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53 mike 1.2
54 PEGASUS_NAMESPACE_BEGIN
55
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56 karl 1.17 WQLParserState* globalParserState = 0;
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57 humberto 1.13 static Mutex WQL_mutex;
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58 mike 1.2
59 void WQLParser::parse(
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60 mike 1.3 const char* text,
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61 mike 1.2 WQLSelectStatement& statement)
62 {
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63 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::parse");
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64 humberto 1.13
65 AutoMutex mtx(WQL_mutex);
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66 kumpf 1.4
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67 mike 1.3 if (!text)
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68 kumpf 1.4 {
69 PEG_METHOD_EXIT();
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70 mike 1.3 throw NullPointer();
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71 kumpf 1.4 }
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72 mike 1.3
73 statement.clear();
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74 mike 1.2
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75 karl 1.17 globalParserState = new WQLParserState;
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76 mike 1.2 globalParserState->error = false;
77 globalParserState->text = text;
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78 mike 1.3 globalParserState->textSize = strlen(text) + 1;
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79 mike 1.2 globalParserState->offset = 0;
80 globalParserState->statement = &statement;
81
82 WQL_parse();
83
84 if (globalParserState->error)
85 {
86 String errorMessage = globalParserState->errorMessage;
87 cleanup();
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88 karl 1.17 delete globalParserState;
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89 kumpf 1.4 PEG_METHOD_EXIT();
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90 mike 1.2 throw ParseError(errorMessage);
91 }
92
93 cleanup();
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94 karl 1.17 delete globalParserState;
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95 kumpf 1.4 PEG_METHOD_EXIT();
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96 mike 1.2 }
97
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98 mike 1.3 void WQLParser::parse(
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99 mike 1.19 const Buffer& text,
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100 mike 1.3 WQLSelectStatement& statement)
101 {
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102 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::parse");
103
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104 mike 1.3 if (text.size() == 0 || text[text.size() - 1] != '\0')
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105 kumpf 1.4 {
106 PEG_METHOD_EXIT();
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107 mike 1.3 throw MissingNullTerminator();
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108 kumpf 1.4 }
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109 mike 1.3
110 parse(text.getData(), statement);
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111 kumpf 1.4 PEG_METHOD_EXIT();
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112 mike 1.3 }
113
114 void WQLParser::parse(
115 const String& text,
116 WQLSelectStatement& statement)
117 {
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118 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::parse");
119
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120 kumpf 1.9 parse(text.getCString(), statement);
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121 kumpf 1.4
122 PEG_METHOD_EXIT();
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123 mike 1.3 }
124
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125 mike 1.2 void WQLParser::cleanup()
126 {
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127 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLParser::cleanup");
128
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129 mike 1.2 Array<char*>& arr = globalParserState->outstandingStrings;
130
131 for (Uint32 i = 0, n = arr.size(); i < n; i++)
132 delete [] arr[i];
133
134 arr.clear();
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135 kumpf 1.4
136 PEG_METHOD_EXIT();
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137 mike 1.2 }
138
139 PEGASUS_NAMESPACE_END
140
141 PEGASUS_USING_PEGASUS;
142
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143 kumpf 1.8 int WQL_error(const char* errorMessage)
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144 mike 1.2 {
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145 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQL_error");
146
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147 mike 1.2 globalParserState->error = true;
148 globalParserState->errorMessage = errorMessage;
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149 kumpf 1.10
150 //
151 // flex does not automatically flush the input buffer in case of error
152 //
153 WQL_restart (0);
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154 kumpf 1.4
155 PEG_METHOD_EXIT();
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156 mike 1.2 return -1;
157 }
158
159 int WQLInput(char* buffer, int& numRead, int numRequested)
160 {
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161 kumpf 1.4 PEG_METHOD_ENTER(TRC_WQL,"WQLInput");
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162 mike 1.2 //
163 // Be sure to account for the null terminator (the size of the text will
164 // be one or more; this is fixed checked beforehand by WQLParser::parse()).
165 //
166
167 int remaining =
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168 mike 1.3 globalParserState->textSize - globalParserState->offset - 1;
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169 mike 1.2
170 if (remaining == 0)
171 {
172 numRead = 0;
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173 kumpf 1.4 PEG_METHOD_EXIT();
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174 mike 1.2 return 0;
175 }
176
177 if (remaining < numRequested)
178 numRequested = remaining;
179
180 memcpy(buffer,
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181 mike 1.3 globalParserState->text + globalParserState->offset,
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182 mike 1.2 numRequested);
183
184 globalParserState->offset += numRequested;
185 numRead = numRequested;
186
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187 kumpf 1.4 PEG_METHOD_EXIT();
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188 mike 1.2 return numRead;
189 }
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Return to
WQLParser.cpp
CVS log
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