| 1 | /* This file is part of the project "Hilbert II" - http://www.qedeq.org |
| 2 | * |
| 3 | * Copyright 2000-2014, Michael Meyling <mime@qedeq.org>. |
| 4 | * |
| 5 | * "Hilbert II" is free software; you can redistribute |
| 6 | * it and/or modify it under the terms of the GNU General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | package org.qedeq.kernel.bo.service.logic; |
| 17 | |
| 18 | |
| 19 | import org.qedeq.base.io.Parameters; |
| 20 | import org.qedeq.base.io.Version; |
| 21 | import org.qedeq.base.trace.Trace; |
| 22 | import org.qedeq.base.utility.StringUtility; |
| 23 | import org.qedeq.kernel.bo.log.QedeqLog; |
| 24 | import org.qedeq.kernel.bo.logic.ProofCheckerFactoryImpl; |
| 25 | import org.qedeq.kernel.bo.logic.common.FormulaUtility; |
| 26 | import org.qedeq.kernel.bo.logic.common.FunctionKey; |
| 27 | import org.qedeq.kernel.bo.logic.common.LogicalCheckExceptionList; |
| 28 | import org.qedeq.kernel.bo.logic.common.PredicateKey; |
| 29 | import org.qedeq.kernel.bo.logic.common.ReferenceResolver; |
| 30 | import org.qedeq.kernel.bo.logic.proof.checker.ProofCheckException; |
| 31 | import org.qedeq.kernel.bo.logic.proof.common.ProofCheckerFactory; |
| 32 | import org.qedeq.kernel.bo.logic.proof.common.RuleChecker; |
| 33 | import org.qedeq.kernel.bo.module.InternalModuleServiceCall; |
| 34 | import org.qedeq.kernel.bo.module.KernelModuleReferenceList; |
| 35 | import org.qedeq.kernel.bo.module.KernelQedeqBo; |
| 36 | import org.qedeq.kernel.bo.module.Reference; |
| 37 | import org.qedeq.kernel.bo.service.basis.ControlVisitor; |
| 38 | import org.qedeq.kernel.bo.service.basis.ModuleServicePluginExecutor; |
| 39 | import org.qedeq.kernel.se.base.list.Element; |
| 40 | import org.qedeq.kernel.se.base.list.ElementList; |
| 41 | import org.qedeq.kernel.se.base.module.Axiom; |
| 42 | import org.qedeq.kernel.se.base.module.ChangedRule; |
| 43 | import org.qedeq.kernel.se.base.module.ChangedRuleList; |
| 44 | import org.qedeq.kernel.se.base.module.FormalProof; |
| 45 | import org.qedeq.kernel.se.base.module.FormalProofLineList; |
| 46 | import org.qedeq.kernel.se.base.module.FunctionDefinition; |
| 47 | import org.qedeq.kernel.se.base.module.Header; |
| 48 | import org.qedeq.kernel.se.base.module.InitialFunctionDefinition; |
| 49 | import org.qedeq.kernel.se.base.module.InitialPredicateDefinition; |
| 50 | import org.qedeq.kernel.se.base.module.PredicateDefinition; |
| 51 | import org.qedeq.kernel.se.base.module.Proposition; |
| 52 | import org.qedeq.kernel.se.base.module.Rule; |
| 53 | import org.qedeq.kernel.se.common.CheckLevel; |
| 54 | import org.qedeq.kernel.se.common.ModuleContext; |
| 55 | import org.qedeq.kernel.se.common.ModuleDataException; |
| 56 | import org.qedeq.kernel.se.common.ModuleService; |
| 57 | import org.qedeq.kernel.se.common.RuleKey; |
| 58 | import org.qedeq.kernel.se.common.SourceFileException; |
| 59 | import org.qedeq.kernel.se.common.SourceFileExceptionList; |
| 60 | import org.qedeq.kernel.se.dto.list.DefaultAtom; |
| 61 | import org.qedeq.kernel.se.dto.list.DefaultElementList; |
| 62 | import org.qedeq.kernel.se.state.FormallyProvedState; |
| 63 | import org.qedeq.kernel.se.visitor.InterruptException; |
| 64 | |
| 65 | |
| 66 | /** |
| 67 | * Checks if all propositions have a correct formal proof. |
| 68 | * |
| 69 | * @author Michael Meyling |
| 70 | */ |
| 71 | public final class FormalProofCheckerExecutor extends ControlVisitor implements ModuleServicePluginExecutor, |
| 72 | ReferenceResolver, RuleChecker { |
| 73 | |
| 74 | /** This class. */ |
| 75 | private static final Class CLASS = FormalProofCheckerExecutor.class; |
| 76 | |
| 77 | /** Factory for generating new checkers. */ |
| 78 | private ProofCheckerFactory checkerFactory = null; |
| 79 | |
| 80 | /** Rule version the module claims to use at maximum. */ |
| 81 | private Version ruleVersion; |
| 82 | |
| 83 | /** |
| 84 | * Constructor. |
| 85 | * |
| 86 | * @param plugin This plugin we work for. |
| 87 | * @param qedeq QEDEQ BO object. |
| 88 | * @param parameters Parameters. |
| 89 | */ |
| 90 | FormalProofCheckerExecutor(final ModuleService plugin, final KernelQedeqBo qedeq, |
| 91 | final Parameters parameters) { |
| 92 | super(plugin, qedeq); |
| 93 | final String method = "FormalProofCheckerExecutor(Plugin, KernelQedeqBo, Map)"; |
| 94 | final String checkerFactoryClass = parameters.getString("checkerFactory"); |
| 95 | if (checkerFactoryClass != null && checkerFactoryClass.length() > 0) { |
| 96 | try { |
| 97 | Class cl = Class.forName(checkerFactoryClass); |
| 98 | checkerFactory = (ProofCheckerFactory) cl.newInstance(); |
| 99 | } catch (ClassNotFoundException e) { |
| 100 | Trace.fatal(CLASS, this, method, "ProofCheckerFactory class not in class path: " |
| 101 | + checkerFactoryClass, e); |
| 102 | } catch (InstantiationException e) { |
| 103 | Trace.fatal(CLASS, this, method, "ProofCheckerFactory class could not be instanciated: " |
| 104 | + checkerFactoryClass, e); |
| 105 | } catch (IllegalAccessException e) { |
| 106 | Trace.fatal(CLASS, this, method, |
| 107 | "Programming error, access for instantiation failed for model: " |
| 108 | + checkerFactoryClass, e); |
| 109 | } catch (RuntimeException e) { |
| 110 | Trace.fatal(CLASS, this, method, |
| 111 | "Programming error, instantiation failed for model: " + checkerFactoryClass, e); |
| 112 | } |
| 113 | } |
| 114 | // fallback is the default checker factory |
| 115 | if (checkerFactory == null) { |
| 116 | checkerFactory = new ProofCheckerFactoryImpl(); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | public Object executePlugin(final InternalModuleServiceCall call, final Object data) throws InterruptException { |
| 121 | // we set this as module rule version, and hope it will be changed |
| 122 | ruleVersion = new Version("0.00.00"); |
| 123 | QedeqLog.getInstance().logRequest( |
| 124 | "Check logical correctness", getKernelQedeqBo().getUrl()); |
| 125 | getServices().checkWellFormedness(call.getInternalServiceProcess(), getKernelQedeqBo()); |
| 126 | if (!getKernelQedeqBo().isWellFormed()) { |
| 127 | final String msg = "Check of logical correctness failed"; |
| 128 | QedeqLog.getInstance().logFailureReply(msg, getKernelQedeqBo().getUrl(), |
| 129 | "Module is not even well formed."); |
| 130 | return Boolean.FALSE; |
| 131 | } |
| 132 | getKernelQedeqBo().setFormallyProvedProgressState(FormallyProvedState.STATE_EXTERNAL_CHECKING); |
| 133 | getKernelQedeqBo().getLabels().resetNodesToProvedUnchecked(); |
| 134 | final KernelModuleReferenceList list = getKernelQedeqBo().getKernelRequiredModules(); |
| 135 | for (int i = 0; i < list.size(); i++) { |
| 136 | Trace.trace(CLASS, "check(DefaultQedeqBo)", "checking label", list.getLabel(i)); |
| 137 | getServices().checkFormallyProved(call.getInternalServiceProcess(), list.getKernelQedeqBo(i)); |
| 138 | if (list.getKernelQedeqBo(i).hasErrors()) { |
| 139 | addError(new CheckRequiredModuleException( |
| 140 | LogicErrors.MODULE_IMPORT_CHECK_FAILED_CODE, |
| 141 | LogicErrors.MODULE_IMPORT_CHECK_FAILED_TEXT |
| 142 | + list.getQedeqBo(i).getModuleAddress(), |
| 143 | list.getModuleContext(i))); |
| 144 | } |
| 145 | } |
| 146 | // has at least one import errors? |
| 147 | if (getKernelQedeqBo().hasErrors()) { |
| 148 | getKernelQedeqBo().setFormallyProvedFailureState(FormallyProvedState.STATE_EXTERNAL_CHECKING_FAILED, |
| 149 | getErrorList()); |
| 150 | final String msg = "Check of logical correctness failed"; |
| 151 | QedeqLog.getInstance().logFailureReply(msg, getKernelQedeqBo().getUrl(), |
| 152 | StringUtility.replace(getKernelQedeqBo().getErrors().getMessage(), "\n", "\n\t")); |
| 153 | return Boolean.FALSE; |
| 154 | } |
| 155 | getKernelQedeqBo().setFormallyProvedProgressState(FormallyProvedState.STATE_INTERNAL_CHECKING); |
| 156 | try { |
| 157 | traverse(call.getInternalServiceProcess()); |
| 158 | } catch (SourceFileExceptionList e) { |
| 159 | getKernelQedeqBo().setFormallyProvedFailureState(FormallyProvedState.STATE_INTERNAL_CHECKING_FAILED, |
| 160 | getErrorList()); |
| 161 | final String msg = "Check of logical correctness failed"; |
| 162 | QedeqLog.getInstance().logFailureReply(msg, getKernelQedeqBo().getUrl(), |
| 163 | StringUtility.replace(e.getMessage(), "\n", "\n\t")); |
| 164 | return Boolean.FALSE; |
| 165 | } |
| 166 | getKernelQedeqBo().setFormallyProvedProgressState(FormallyProvedState.STATE_CHECKED); |
| 167 | QedeqLog.getInstance().logSuccessfulReply( |
| 168 | "Check of logical correctness successful", getKernelQedeqBo().getUrl()); |
| 169 | return Boolean.TRUE; |
| 170 | } |
| 171 | |
| 172 | public void visitEnter(final Header header) throws ModuleDataException { |
| 173 | if (header.getSpecification() == null |
| 174 | || header.getSpecification().getRuleVersion() == null) { |
| 175 | return; |
| 176 | } |
| 177 | final String context = getCurrentContext().getLocationWithinModule(); |
| 178 | setLocationWithinModule(context + ".getSpecification().getRuleVersion()"); |
| 179 | final String version = header.getSpecification().getRuleVersion().trim(); |
| 180 | if (!checkerFactory.isRuleVersionSupported(version)) { |
| 181 | addError(new ProofCheckException( |
| 182 | LogicErrors.RULE_VERSION_HAS_STILL_NO_PROOF_CHECKER_CODE, |
| 183 | LogicErrors.RULE_VERSION_HAS_STILL_NO_PROOF_CHECKER_TEXT + version, |
| 184 | getCurrentContext())); |
| 185 | } else { |
| 186 | try { |
| 187 | ruleVersion = new Version(version); |
| 188 | } catch (RuntimeException e) { |
| 189 | addError(new ProofCheckException( |
| 190 | LogicErrors.THIS_IS_NOT_VALID_VERSION_FORMAT_CODE, |
| 191 | LogicErrors.THIS_IS_NOT_VALID_VERSION_FORMAT_TEXT + version, |
| 192 | getCurrentContext())); |
| 193 | } |
| 194 | } |
| 195 | setLocationWithinModule(context); |
| 196 | } |
| 197 | |
| 198 | public void visitEnter(final Axiom axiom) throws ModuleDataException { |
| 199 | if (getNodeBo().isWellFormed()) { |
| 200 | getNodeBo().setProved(CheckLevel.SUCCESS); |
| 201 | } else { |
| 202 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 203 | addError(new ProofCheckException( |
| 204 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_CODE, |
| 205 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_TEXT, |
| 206 | getCurrentContext())); |
| 207 | return; |
| 208 | } |
| 209 | setBlocked(true); |
| 210 | } |
| 211 | |
| 212 | public void visitLeave(final Axiom axiom) { |
| 213 | setBlocked(false); |
| 214 | } |
| 215 | |
| 216 | public void visitEnter(final PredicateDefinition definition) |
| 217 | throws ModuleDataException { |
| 218 | if (getNodeBo().isWellFormed()) { |
| 219 | getNodeBo().setProved(CheckLevel.SUCCESS); |
| 220 | } else { |
| 221 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 222 | addError(new ProofCheckException( |
| 223 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_CODE, |
| 224 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_TEXT, |
| 225 | getCurrentContext())); |
| 226 | return; |
| 227 | } |
| 228 | setBlocked(true); |
| 229 | } |
| 230 | |
| 231 | public void visitLeave(final PredicateDefinition definition) { |
| 232 | setBlocked(false); |
| 233 | } |
| 234 | |
| 235 | public void visitEnter(final InitialPredicateDefinition definition) |
| 236 | throws ModuleDataException { |
| 237 | if (getNodeBo().isWellFormed()) { |
| 238 | getNodeBo().setProved(CheckLevel.SUCCESS); |
| 239 | } else { |
| 240 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 241 | addError(new ProofCheckException( |
| 242 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_CODE, |
| 243 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_TEXT, |
| 244 | getCurrentContext())); |
| 245 | return; |
| 246 | } |
| 247 | setBlocked(true); |
| 248 | } |
| 249 | |
| 250 | public void visitLeave(final InitialPredicateDefinition definition) { |
| 251 | setBlocked(false); |
| 252 | } |
| 253 | |
| 254 | public void visitEnter(final InitialFunctionDefinition definition) |
| 255 | throws ModuleDataException { |
| 256 | if (getNodeBo().isWellFormed()) { |
| 257 | getNodeBo().setProved(CheckLevel.SUCCESS); |
| 258 | } else { |
| 259 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 260 | addError(new ProofCheckException( |
| 261 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_CODE, |
| 262 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_TEXT, |
| 263 | getCurrentContext())); |
| 264 | return; |
| 265 | } |
| 266 | setBlocked(true); |
| 267 | } |
| 268 | |
| 269 | public void visitLeave(final InitialFunctionDefinition definition) { |
| 270 | setBlocked(false); |
| 271 | } |
| 272 | |
| 273 | public void visitEnter(final FunctionDefinition definition) |
| 274 | throws ModuleDataException { |
| 275 | if (getNodeBo().isWellFormed()) { |
| 276 | getNodeBo().setProved(CheckLevel.SUCCESS); |
| 277 | } else { |
| 278 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 279 | addError(new ProofCheckException( |
| 280 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_CODE, |
| 281 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_TEXT, |
| 282 | getCurrentContext())); |
| 283 | return; |
| 284 | } |
| 285 | setBlocked(true); |
| 286 | } |
| 287 | |
| 288 | public void visitLeave(final FunctionDefinition definition) { |
| 289 | setBlocked(false); |
| 290 | } |
| 291 | |
| 292 | public void visitEnter(final Proposition proposition) |
| 293 | throws ModuleDataException { |
| 294 | // we only check this node, if the well formed check was successful |
| 295 | if (!getNodeBo().isWellFormed()) { |
| 296 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 297 | addError(new ProofCheckException( |
| 298 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_CODE, |
| 299 | LogicErrors.NODE_FORMULAS_MUST_BE_WELL_FORMED_TEXT, |
| 300 | getCurrentContext())); |
| 301 | return; |
| 302 | } |
| 303 | getNodeBo().setProved(CheckLevel.UNCHECKED); |
| 304 | if (proposition.getFormula() == null) { |
| 305 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 306 | addError(new ProofCheckException( |
| 307 | LogicErrors.PROPOSITION_FORMULA_MUST_NOT_BE_NULL_CODE, |
| 308 | LogicErrors.PROPOSITION_FORMULA_MUST_NOT_BE_NULL_TEXT, |
| 309 | getCurrentContext())); |
| 310 | return; |
| 311 | } |
| 312 | final String context = getCurrentContext().getLocationWithinModule(); |
| 313 | boolean correctProofFound = false; |
| 314 | // we start checking |
| 315 | if (proposition.getFormalProofList() != null) { |
| 316 | for (int i = 0; i < proposition.getFormalProofList().size(); i++) { |
| 317 | final FormalProof proof = proposition.getFormalProofList().get(i); |
| 318 | if (proof != null) { |
| 319 | final FormalProofLineList list = proof.getFormalProofLineList(); |
| 320 | if (list != null) { |
| 321 | setLocationWithinModule(context + ".getFormalProofList().get(" |
| 322 | + i + ").getFormalProofLineList()"); |
| 323 | LogicalCheckExceptionList eList |
| 324 | = checkerFactory.createProofChecker(ruleVersion).checkProof( |
| 325 | proposition.getFormula().getElement(), list, this, |
| 326 | getCurrentContext(), |
| 327 | this); |
| 328 | if (!correctProofFound && eList.size() == 0) { |
| 329 | correctProofFound = true; |
| 330 | } |
| 331 | for (int j = 0; j < eList.size(); j++) { |
| 332 | addError(eList.get(j)); |
| 333 | } |
| 334 | } |
| 335 | } |
| 336 | } |
| 337 | } |
| 338 | setLocationWithinModule(context + ".getFormula()"); |
| 339 | // only if we found at least one error free formal proof |
| 340 | if (correctProofFound) { |
| 341 | getNodeBo().setProved(CheckLevel.SUCCESS); |
| 342 | } else { |
| 343 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 344 | addError(new ProofCheckException( |
| 345 | LogicErrors.NO_FORMAL_PROOF_FOUND_CODE, |
| 346 | LogicErrors.NO_FORMAL_PROOF_FOUND_TEXT, |
| 347 | getCurrentContext())); |
| 348 | } |
| 349 | setBlocked(true); |
| 350 | } |
| 351 | |
| 352 | public void visitLeave(final Proposition definition) { |
| 353 | setBlocked(false); |
| 354 | } |
| 355 | |
| 356 | public void visitEnter(final Rule rule) throws ModuleDataException { |
| 357 | final String context = getCurrentContext().getLocationWithinModule(); |
| 358 | // FIXME 20110618 m31: check if this is really a higher version than before? |
| 359 | // FIXME 20130413 m31: why we don't use the following method: |
| 360 | /// checkerFactory.createProofChecker(ruleVersion).checkRule |
| 361 | getNodeBo().setProved(CheckLevel.UNCHECKED); |
| 362 | final ChangedRuleList list = rule.getChangedRuleList(); |
| 363 | for (int i = 0; list != null && i < list.size(); i++) { |
| 364 | setLocationWithinModule(context + ".getChangedRuleList().get(" + i + ").getVersion()"); |
| 365 | final ChangedRule r = list.get(i); |
| 366 | if (!Version.equals(rule.getVersion(), r.getVersion())) { |
| 367 | addError(new ProofCheckException( |
| 368 | LogicErrors.OTHER_RULE_VERSION_EXPECTED_CODE, |
| 369 | LogicErrors.OTHER_RULE_VERSION_EXPECTED_TEXT1 + rule.getVersion() |
| 370 | + LogicErrors.OTHER_RULE_VERSION_EXPECTED_TEXT2 + r.getVersion(), |
| 371 | getCurrentContext())); |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | if (getNodeBo().isNotProved()) { |
| 376 | getNodeBo().setProved(CheckLevel.SUCCESS); |
| 377 | } else { |
| 378 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | protected void addError(final ModuleDataException me) { |
| 383 | if (getNodeBo() != null) { |
| 384 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 385 | } |
| 386 | super.addError(me); |
| 387 | } |
| 388 | |
| 389 | protected void addError(final SourceFileException me) { |
| 390 | if (getNodeBo() != null) { |
| 391 | getNodeBo().setProved(CheckLevel.FAILURE); |
| 392 | } |
| 393 | super.addError(me); |
| 394 | } |
| 395 | |
| 396 | public boolean isProvedFormula(final String reference) { |
| 397 | final String method = "hasProvedFormula"; |
| 398 | final Reference ref = getReference(reference, getCurrentContext(), false, false); |
| 399 | if (ref == null) { |
| 400 | Trace.info(CLASS, method, "ref == null"); |
| 401 | return false; |
| 402 | } |
| 403 | if (ref.isExternalModuleReference()) { |
| 404 | Trace.info(CLASS, method, "ref is external module"); |
| 405 | return false; |
| 406 | } |
| 407 | if (!ref.isNodeReference()) { |
| 408 | Trace.info(CLASS, method, "ref is no node reference"); |
| 409 | return false; |
| 410 | } |
| 411 | if (null == ref.getNode()) { |
| 412 | Trace.info(CLASS, method, "ref node == null"); |
| 413 | return false; |
| 414 | } |
| 415 | if (ref.isSubReference()) { |
| 416 | return false; |
| 417 | } |
| 418 | if (!ref.isProofLineReference()) { |
| 419 | if (!ref.getNode().isProved()) { |
| 420 | Trace.info(CLASS, method, "ref node is not marked as proved: " + reference); |
| 421 | } |
| 422 | if (!ref.getNode().isProved()) { |
| 423 | return false; |
| 424 | } |
| 425 | if (!ref.getNode().hasFormula()) { |
| 426 | Trace.info(CLASS, method, "node has no formula: " + reference); |
| 427 | return false; |
| 428 | } |
| 429 | return ref.getNode().isProved(); |
| 430 | } |
| 431 | Trace.info(CLASS, method, "proof line references are not ok!"); |
| 432 | return false; |
| 433 | } |
| 434 | |
| 435 | public Element getNormalizedReferenceFormula(final String reference) { |
| 436 | if (!isProvedFormula(reference)) { |
| 437 | return null; |
| 438 | } |
| 439 | final Reference ref = getReference(reference, getCurrentContext(), false, false); |
| 440 | final Element formula = ref.getNode().getFormula(); |
| 441 | return getNormalizedFormula(ref.getNode().getQedeqBo(), formula); |
| 442 | } |
| 443 | |
| 444 | public Element getNormalizedFormula(final Element formula) { |
| 445 | return getNormalizedFormula(getKernelQedeqBo(), formula); |
| 446 | } |
| 447 | |
| 448 | private Element getNormalizedFormula(final KernelQedeqBo qedeq, final Element formula) { |
| 449 | if (formula == null) { |
| 450 | return null; |
| 451 | } |
| 452 | if (formula.isAtom()) { |
| 453 | return new DefaultAtom(formula.getAtom().getString()); |
| 454 | } |
| 455 | return getNormalizedFormula(qedeq, formula.getList()); |
| 456 | } |
| 457 | |
| 458 | private ElementList getNormalizedFormula(final KernelQedeqBo qedeq, final ElementList formula) { |
| 459 | final ElementList result = new DefaultElementList(formula.getOperator()); |
| 460 | if (FormulaUtility.isPredicateConstant(formula)) { |
| 461 | final PredicateKey key = new PredicateKey(formula.getElement(0).getAtom().getString(), |
| 462 | "" + (formula.getList().size() - 1)); |
| 463 | final DefaultAtom atom = new DefaultAtom( |
| 464 | qedeq.getExistenceChecker().get(key).getContext().getModuleLocation().getUrl() |
| 465 | + "$" + key.getName()); |
| 466 | result.add(atom); |
| 467 | for (int i = 1; i < formula.size(); i++) { |
| 468 | result.add(getNormalizedFormula(qedeq, formula.getElement(i))); |
| 469 | } |
| 470 | } else if (FormulaUtility.isFunctionConstant(formula)) { |
| 471 | final FunctionKey key = new FunctionKey(formula.getElement(0).getAtom().getString(), |
| 472 | "" + (formula.getList().size() - 1)); |
| 473 | final DefaultAtom atom = new DefaultAtom( |
| 474 | qedeq.getExistenceChecker().get(key).getContext().getModuleLocation().getUrl() |
| 475 | + "$" + key.getName()); |
| 476 | result.add(atom); |
| 477 | for (int i = 1; i < formula.size(); i++) { |
| 478 | result.add(getNormalizedFormula(qedeq, formula.getElement(i))); |
| 479 | } |
| 480 | } else { |
| 481 | for (int i = 0; i < formula.size(); i++) { |
| 482 | result.add(getNormalizedFormula(qedeq, formula.getElement(i))); |
| 483 | } |
| 484 | } |
| 485 | return result; |
| 486 | } |
| 487 | |
| 488 | public boolean isLocalProofLineReference(final String reference) { |
| 489 | // here we have no proof lines |
| 490 | return false; |
| 491 | } |
| 492 | |
| 493 | public ModuleContext getReferenceContext(final String reference) { |
| 494 | // here we have no proof lines |
| 495 | return null; |
| 496 | } |
| 497 | |
| 498 | public Element getNormalizedLocalProofLineReference(final String reference) { |
| 499 | // here we have no proof lines |
| 500 | return null; |
| 501 | } |
| 502 | |
| 503 | public RuleKey getRule(final String ruleName) { |
| 504 | final RuleKey local = getLocalRuleKey(ruleName); |
| 505 | if (local == null) { |
| 506 | return getKernelQedeqBo().getExistenceChecker().getParentRuleKey( |
| 507 | ruleName); |
| 508 | } |
| 509 | return local; |
| 510 | } |
| 511 | |
| 512 | |
| 513 | } |