/usr/include/arc/compute/JobDescriptionParserPlugin.h is in nordugrid-arc-dev 5.4.2-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 | // -*- indent-tabs-mode: nil -*-
#ifndef __ARC_JOBDESCRIPTIONPARSERPLUGIN_H__
#define __ARC_JOBDESCRIPTIONPARSERPLUGIN_H__
/** \file
* \brief Plugin, loader and argument classes for job description parser specialisation.
*/
#include <map>
#include <string>
#include <utility>
#include <algorithm>
#include <arc/loader/Loader.h>
#include <arc/loader/Plugin.h>
namespace Arc {
class JobDescription;
class Logger;
/**
* \ingroup accplugins
* \headerfile JobDescriptionParserPlugin.h arc/compute/JobDescriptionParserPlugin.h
*/
/**
* \since Added in 5.1.0
**/
class JobDescriptionParsingError {
public:
JobDescriptionParsingError() {}
JobDescriptionParsingError(const std::string& message, const std::pair<int, int>& line_pos = std::make_pair(0, 0), const std::string& failing_code = "")
: message(message), failing_code(failing_code), line_pos(line_pos) {}
~JobDescriptionParsingError() {}
std::string message;
std::string failing_code;
std::pair<int, int> line_pos;
};
class JobDescriptionParserPluginResult {
public:
typedef enum {
Success,
Failure, /**< Parsing failed **/
WrongLanguage
} Result;
JobDescriptionParserPluginResult(void):v_(Success) { };
JobDescriptionParserPluginResult(bool v):v_(v?Success:Failure) { };
JobDescriptionParserPluginResult(Result v):v_(v) { };
operator bool(void) { return (v_ == Success); };
bool operator!(void) { return (v_ != Success); };
bool operator==(bool v) { return ((v_ == Success) == v); };
bool operator==(Result v) { return (v_ == v); };
/**
* \since Added in 5.1.0
**/
bool HasErrors() const { return !errors_.empty(); };
/**
* \since Added in 5.1.0
**/
const std::list<JobDescriptionParsingError>& GetErrors() const { return errors_; };
/**
* \since Added in 5.1.0
**/
void AddError(const JobDescriptionParsingError& error) { errors_.push_back(error); };
/**
* \since Added in 5.1.0
**/
void AddError(const IString& msg,
const std::pair<int, int>& location = std::make_pair(0, 0),
const std::string& failing_code = "") {
errors_.push_back(JobDescriptionParsingError(msg.str(), location, failing_code));
}
/**
* \since Added in 5.1.0
**/
void SetSuccess() { v_ = Success; };
/**
* \since Added in 5.1.0
**/
void SetFailure() { v_ = Failure; };
/**
* \since Added in 5.1.0
**/
void SetWrongLanguage() {v_ = WrongLanguage; };
private:
Result v_;
std::list<JobDescriptionParsingError> errors_;
};
/// Abstract plugin class for different parsers
/**
* The JobDescriptionParserPlugin class is abstract which provide an interface
* for job description parsers. A job description parser should inherit this
* class and overwrite the JobDescriptionParserPlugin::Parse and
* JobDescriptionParserPlugin::UnParse methods. The inheriating class should
* add the job description languages that it supports to the
* 'supportedLanguages' member, formatted according to the GLUE2
* JobDescription_t type (GFD-R-P.147). The created job description parser
* will then be available to the JobDescription::Parse,
* JobDescription::ParseFromFile and JobDescription::Assemble methods, adding
* the ability to parse and assemble job descriptions in the specified
* languages.
*
* Using the methods in JobDescription class for parsing job descriptions is
* recommended, however it is also possible to use parser plugins directly,
* which can be done by loading them using the
* JobDescriptionParserPluginLoader class.
*
* Since this class inheriates from the Plugin class, inheriating classes
* should be compiled as a loadable module. See xxx for information on
* creating loadable modules for ARC.
*
* \ingroup accplugins
* \headerfile JobDescriptionParserPlugin.h arc/compute/JobDescriptionParserPlugin.h
*/
class JobDescriptionParserPlugin
: public Plugin {
public:
virtual ~JobDescriptionParserPlugin();
/// Parse string into JobDescription objects
/**
* Parses the string argument \p source into JobDescription objects. If the
* \p language argument is specified the method will only parse the string
* if it supports that language - a JobDescriptionParserPluginResult object
* with status \ref JobDescriptionParserPluginResult::WrongLanguage "WrongLanguage"
* is returned if language is not supported. Similar for the \p dialect
* argument, if specified, string is only parsed if that dialect is known
* by parser.
* If the \p language argument is not specified an attempt at parsing
* \p source using any of the supported languages is tried.
* If parsing is successful the generated JobDescription objects is appended
* to the \p jobdescs argument. If parsing is unsuccessful the \p jobdescs
* argument is untouched, and details of the failure is returned.
*
* Inheriating classes must extend this method. The extended method should
* parse the \p source argument string into a JobDescription object, possibly
* into multiple objects. Some languages can contain multiple alternative
* views, in such cases alternatives should be added using the
* JobDescription::AddAlternative method. Only if parsing is successful
* should the generated JobDescription objects be added to the \p jobdescs
* argument. Note: The only allowed modification of the \p jobdescs list is
* adding elements. If the \p language argument is specified parsing should
* only be initiated if the specified language is among the supported
* ones, if that is not the case \ref JobDescriptionParserPluginResult::WrongLanguage "WrongLanguage"
* should be returned.
* If the \p language argument
* For some languages different dialects exist (e.g. user- and GM- side xRSL,
* JSDL, JSDL-POSIX), and if the \p dialect argument is specified the
* parsing must strictly conform to that dialect. If the dialect is unknown
* \ref JobDescriptionParserPluginResult::WrongLanguage "WrongLanguage"
* should be returned.
*
* \param source should contain a representation of job description as a
* string.
* \param jobdescs a reference to a list of JobDescription object which
* parsed job descriptions should be appended to.
* \param language if specified parse in specified language (if not supported
* \ref JobDescriptionParserPluginResult::WrongLanguage "WrongLanguage" is
* returned).
* \param dialect if specified parsing conforms strictly to specified
* dialect.
* \return A JobDescriptionParserPluginResult is returned indicating outcome
* of parsing.
* \see JobDescriptionParserPlugin::Assemble
* \see JobDescriptionParserPluginResult
**/
virtual JobDescriptionParserPluginResult Parse(const std::string& source, std::list<JobDescription>& jobdescs, const std::string& language = "", const std::string& dialect = "") const = 0;
/// Assemble job description into string
/**
* \since Added in 5.1.0
**/
virtual JobDescriptionParserPluginResult Assemble(const JobDescription& job, std::string& output, const std::string& language, const std::string& dialect = "") const = 0;
/// [DEPRECATED] Assemble job description into string
/**
* \deprecated Deprecated as of 5.1.0, use the
* JobDescriptionParserPlugin::Assemble method instead - expected to be
* removed in 6.0.0.
**/
virtual JobDescriptionParserPluginResult UnParse(const JobDescription& job, std::string& output, const std::string& language, const std::string& dialect = "") const { return Assemble(job, output, language, dialect); };
/// Get supported job description languages
/**
* \return A list of job description languages supported by this parser is
* returned.
**/
const std::list<std::string>& GetSupportedLanguages() const { return supportedLanguages; }
/// Check if language is supported
/**
* \param language a string formatted according to the GLUE2
* JobDescription_t type (GFD-R-P.147), e.g. nordugrid:xrsl.
* \return \c true is returned if specified language is supported.
**/
bool IsLanguageSupported(const std::string& language) const { return std::find(supportedLanguages.begin(), supportedLanguages.end(), language) != supportedLanguages.end(); }
/// [DEPRECATED] Get parsing error
/**
* \deprecated Deprecated as of 5.1.0 - expected to be removed in 6.0.0.
**/
const std::string& GetError(void) { return error; };
protected:
JobDescriptionParserPlugin(PluginArgument* parg);
/// [DEPRECATED] Get reference to sourceLanguage member
/**
* \deprecated Deprecated as of 5.1.0 - expected to be removed in 6.0.0.
**/
std::string& SourceLanguage(JobDescription& j) const;
/// List of supported job description languages
/**
* Inheriating classes should add languages supported to this list in
* the constructor.
**/
std::list<std::string> supportedLanguages;
/// [DEPRECATED] Parsing error
/**
* \deprecated Deprecated as of 5.1.0 - expected to be removed in 6.0.0.
**/
mutable std::string error;
static Logger logger;
};
/** Class responsible for loading JobDescriptionParserPlugin plugins
* The JobDescriptionParserPlugin objects returned by a
* JobDescriptionParserPluginLoader must not be used after the
* JobDescriptionParserPluginLoader goes out of scope.
*
* \ingroup accplugins
* \headerfile JobDescriptionParserPlugin.h arc/compute/JobDescriptionParserPlugin.h
*/
class JobDescriptionParserPluginLoader
: public Loader {
public:
/** Constructor
* Creates a new JobDescriptionParserPluginLoader.
*/
JobDescriptionParserPluginLoader();
/** Destructor
* Calling the destructor destroys all JobDescriptionParserPlugin object
* loaded by the JobDescriptionParserPluginLoader instance.
*/
~JobDescriptionParserPluginLoader();
/** Load a new JobDescriptionParserPlugin
* \param name The name of the JobDescriptionParserPlugin to load.
* \return A pointer to the new JobDescriptionParserPlugin (NULL on error).
*/
JobDescriptionParserPlugin* load(const std::string& name);
/** Retrieve the list of loaded JobDescriptionParserPlugin objects.
* \return A reference to the list of JobDescriptionParserPlugin objects.
*/
const std::list<JobDescriptionParserPlugin*>& GetJobDescriptionParserPlugins() const { return jdps; }
class iterator {
private:
iterator(JobDescriptionParserPluginLoader& jdpl);
iterator& operator=(const iterator& it) { return *this; }
public:
~iterator() {}
//iterator& operator=(const iterator& it) { current = it.current; jdpl = it.jdpl; return *this; }
JobDescriptionParserPlugin& operator*() { return **current; }
const JobDescriptionParserPlugin& operator*() const { return **current; }
JobDescriptionParserPlugin* operator->() { return *current; }
const JobDescriptionParserPlugin* operator->() const { return *current; }
iterator& operator++();
operator bool() { return !jdpl->jdpDescs.empty() || current != jdpl->jdps.end(); }
friend class JobDescriptionParserPluginLoader;
private:
void LoadNext();
std::list<JobDescriptionParserPlugin*>::iterator current;
JobDescriptionParserPluginLoader* jdpl;
};
iterator GetIterator() { return iterator(*this); }
private:
std::list<JobDescriptionParserPlugin*> jdps;
std::list<ModuleDesc> jdpDescs;
void scan();
bool scaningDone;
};
} // namespace Arc
#endif // __ARC_JOBDESCRIPTIONPARSERPLUGIN_H__
|