package org.eclipse.viatra.query.application.queries;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import org.apache.log4j.Logger;
import org.eclipse.emf.common.notify.Notifier;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.viatra.query.application.queries.SubPackageMatch;
import org.eclipse.viatra.query.application.queries.util.SubPackageQuerySpecification;
import org.eclipse.viatra.query.runtime.api.IMatchProcessor;
import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
import org.eclipse.viatra.query.runtime.exception.ViatraQueryException;
import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
/**
* Generated pattern matcher API of the org.eclipse.viatra.query.application.queries.subPackage pattern,
* providing pattern-specific query methods.
*
* <p>Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
* e.g. in conjunction with {@link ViatraQueryEngine#on(Notifier)}.
*
* <p>Matches of the pattern will be represented as {@link SubPackageMatch}.
*
* <p>Original source:
* <code><pre>
* {@literal @}Edge(source = p, target = sp, label = "sub")
* pattern subPackage(p: EPackage, sp: EPackage){ EPackage.eSubpackages(p,sp); }
* </pre></code>
*
* @see SubPackageMatch
* @see SubPackageProcessor
* @see SubPackageQuerySpecification
*
*/
@SuppressWarnings("all")
public class SubPackageMatcher extends BaseMatcher<SubPackageMatch> {
/**
* Initializes the pattern matcher within an existing VIATRA Query engine.
* If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
* The match set will be incrementally refreshed upon updates.
* @param engine the existing VIATRA Query engine in which this matcher will be created.
* @throws ViatraQueryException if an error occurs during pattern matcher creation
*
*/
public static SubPackageMatcher on(final ViatraQueryEngine engine) throws ViatraQueryException {
// check if matcher already exists
SubPackageMatcher matcher = engine.getExistingMatcher(querySpecification());
if (matcher == null) {
matcher = new SubPackageMatcher(engine);
// do not have to "put" it into engine.matchers, reportMatcherInitialized() will take care of it
}
return matcher;
}
private final static int POSITION_P = 0;
private final static int POSITION_SP = 1;
private final static Logger LOGGER = ViatraQueryLoggingUtil.getLogger(SubPackageMatcher.class);
/**
* Initializes the pattern matcher over a given EMF model root (recommended: Resource or ResourceSet).
* If a pattern matcher is already constructed with the same root, only a light-weight reference is returned.
* The scope of pattern matching will be the given EMF model root and below (see FAQ for more precise definition).
* The match set will be incrementally refreshed upon updates from this scope.
* <p>The matcher will be created within the managed {@link ViatraQueryEngine} belonging to the EMF model root, so
* multiple matchers will reuse the same engine and benefit from increased performance and reduced memory footprint.
* @param emfRoot the root of the EMF containment hierarchy where the pattern matcher will operate. Recommended: Resource or ResourceSet.
* @throws ViatraQueryException if an error occurs during pattern matcher creation
* @deprecated use {@link #on(ViatraQueryEngine)} instead, e.g. in conjunction with {@link ViatraQueryEngine#on(Notifier)}
*
*/
@Deprecated
public SubPackageMatcher(final Notifier emfRoot) throws ViatraQueryException {
this(ViatraQueryEngine.on(emfRoot));
}
/**
* Initializes the pattern matcher within an existing VIATRA Query engine.
* If the pattern matcher is already constructed in the engine, only a light-weight reference is returned.
* The match set will be incrementally refreshed upon updates.
* @param engine the existing VIATRA Query engine in which this matcher will be created.
* @throws ViatraQueryException if an error occurs during pattern matcher creation
* @deprecated use {@link #on(ViatraQueryEngine)} instead
*
*/
@Deprecated
public SubPackageMatcher(final ViatraQueryEngine engine) throws ViatraQueryException {
super(engine, querySpecification());
}
/**
* Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
* @param pP the fixed value of pattern parameter p, or null if not bound.
* @param pSp the fixed value of pattern parameter sp, or null if not bound.
* @return matches represented as a SubPackageMatch object.
*
*/
public Collection<SubPackageMatch> getAllMatches(final EPackage pP, final EPackage pSp) {
return rawGetAllMatches(new Object[]{pP, pSp});
}
/**
* Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
* Neither determinism nor randomness of selection is guaranteed.
* @param pP the fixed value of pattern parameter p, or null if not bound.
* @param pSp the fixed value of pattern parameter sp, or null if not bound.
* @return a match represented as a SubPackageMatch object, or null if no match is found.
*
*/
public SubPackageMatch getOneArbitraryMatch(final EPackage pP, final EPackage pSp) {
return rawGetOneArbitraryMatch(new Object[]{pP, pSp});
}
/**
* Indicates whether the given combination of specified pattern parameters constitute a valid pattern match,
* under any possible substitution of the unspecified parameters (if any).
* @param pP the fixed value of pattern parameter p, or null if not bound.
* @param pSp the fixed value of pattern parameter sp, or null if not bound.
* @return true if the input is a valid (partial) match of the pattern.
*
*/
public boolean hasMatch(final EPackage pP, final EPackage pSp) {
return rawHasMatch(new Object[]{pP, pSp});
}
/**
* Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
* @param pP the fixed value of pattern parameter p, or null if not bound.
* @param pSp the fixed value of pattern parameter sp, or null if not bound.
* @return the number of pattern matches found.
*
*/
public int countMatches(final EPackage pP, final EPackage pSp) {
return rawCountMatches(new Object[]{pP, pSp});
}
/**
* Executes the given processor on each match of the pattern that conforms to the given fixed values of some parameters.
* @param pP the fixed value of pattern parameter p, or null if not bound.
* @param pSp the fixed value of pattern parameter sp, or null if not bound.
* @param processor the action that will process each pattern match.
*
*/
public void forEachMatch(final EPackage pP, final EPackage pSp, final IMatchProcessor<? super SubPackageMatch> processor) {
rawForEachMatch(new Object[]{pP, pSp}, processor);
}
/**
* Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters.
* Neither determinism nor randomness of selection is guaranteed.
* @param pP the fixed value of pattern parameter p, or null if not bound.
* @param pSp the fixed value of pattern parameter sp, or null if not bound.
* @param processor the action that will process the selected match.
* @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked
*
*/
public boolean forOneArbitraryMatch(final EPackage pP, final EPackage pSp, final IMatchProcessor<? super SubPackageMatch> processor) {
return rawForOneArbitraryMatch(new Object[]{pP, pSp}, processor);
}
/**
* Returns a new (partial) match.
* This can be used e.g. to call the matcher with a partial match.
* <p>The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
* @param pP the fixed value of pattern parameter p, or null if not bound.
* @param pSp the fixed value of pattern parameter sp, or null if not bound.
* @return the (partial) match object.
*
*/
public SubPackageMatch newMatch(final EPackage pP, final EPackage pSp) {
return SubPackageMatch.newMatch(pP, pSp);
}
/**
* Retrieve the set of values that occur in matches for p.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
protected Set<EPackage> rawAccumulateAllValuesOfp(final Object[] parameters) {
Set<EPackage> results = new HashSet<EPackage>();
rawAccumulateAllValues(POSITION_P, parameters, results);
return results;
}
/**
* Retrieve the set of values that occur in matches for p.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
public Set<EPackage> getAllValuesOfp() {
return rawAccumulateAllValuesOfp(emptyArray());
}
/**
* Retrieve the set of values that occur in matches for p.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
public Set<EPackage> getAllValuesOfp(final SubPackageMatch partialMatch) {
return rawAccumulateAllValuesOfp(partialMatch.toArray());
}
/**
* Retrieve the set of values that occur in matches for p.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
public Set<EPackage> getAllValuesOfp(final EPackage pSp) {
return rawAccumulateAllValuesOfp(new Object[]{
null,
pSp
});
}
/**
* Retrieve the set of values that occur in matches for sp.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
protected Set<EPackage> rawAccumulateAllValuesOfsp(final Object[] parameters) {
Set<EPackage> results = new HashSet<EPackage>();
rawAccumulateAllValues(POSITION_SP, parameters, results);
return results;
}
/**
* Retrieve the set of values that occur in matches for sp.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
public Set<EPackage> getAllValuesOfsp() {
return rawAccumulateAllValuesOfsp(emptyArray());
}
/**
* Retrieve the set of values that occur in matches for sp.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
public Set<EPackage> getAllValuesOfsp(final SubPackageMatch partialMatch) {
return rawAccumulateAllValuesOfsp(partialMatch.toArray());
}
/**
* Retrieve the set of values that occur in matches for sp.
* @return the Set of all values, null if no parameter with the given name exists, empty set if there are no matches
*
*/
public Set<EPackage> getAllValuesOfsp(final EPackage pP) {
return rawAccumulateAllValuesOfsp(new Object[]{
pP,
null
});
}
@Override
protected SubPackageMatch tupleToMatch(final Tuple t) {
try {
return SubPackageMatch.newMatch((EPackage) t.get(POSITION_P), (EPackage) t.get(POSITION_SP));
} catch(ClassCastException e) {
LOGGER.error("Element(s) in tuple not properly typed!",e);
return null;
}
}
@Override
protected SubPackageMatch arrayToMatch(final Object[] match) {
try {
return SubPackageMatch.newMatch((EPackage) match[POSITION_P], (EPackage) match[POSITION_SP]);
} catch(ClassCastException e) {
LOGGER.error("Element(s) in array not properly typed!",e);
return null;
}
}
@Override
protected SubPackageMatch arrayToMatchMutable(final Object[] match) {
try {
return SubPackageMatch.newMutableMatch((EPackage) match[POSITION_P], (EPackage) match[POSITION_SP]);
} catch(ClassCastException e) {
LOGGER.error("Element(s) in array not properly typed!",e);
return null;
}
}
/**
* @return the singleton instance of the query specification of this pattern
* @throws ViatraQueryException if the pattern definition could not be loaded
*
*/
public static IQuerySpecification<SubPackageMatcher> querySpecification() throws ViatraQueryException {
return SubPackageQuerySpecification.instance();
}
}