/**
* Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.alloyexamples/patterns/hu/bme/mit/inf/dslreasoner/domains/alloyexamples/FileSystem.vql
*/
package hu.bme.mit.inf.dslreasoner.domains.alloyexamples;
import hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.function.Consumer;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.log4j.Logger;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.viatra.query.runtime.api.IPatternMatch;
import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine;
import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery;
import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification;
import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher;
import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch;
import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey;
import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey;
import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
import org.eclipse.viatra.query.runtime.matchers.psystem.PBody;
import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable;
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality;
import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter;
import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint;
import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter;
import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection;
import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility;
import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple;
import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil;
/**
* A pattern-specific query specification that can instantiate Matcher in a type-safe way.
*
*
Original source:
*
* pattern patternContent(o1: FSObject, o2: FSObject) {
* Dir.contents(o1,o2);
* }
*
*
* @see Matcher
* @see Match
*
*/
@SuppressWarnings("all")
public final class PatternContent extends BaseGeneratedEMFQuerySpecification {
/**
* Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent pattern,
* to be used in conjunction with {@link Matcher}.
*
* Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned.
* Each instance is a (possibly partial) substitution of pattern parameters,
* usable to represent a match of the pattern in the result of a query,
* or to specify the bound (fixed) input parameters when issuing a query.
*
* @see Matcher
*
*/
public static abstract class Match extends BasePatternMatch {
private FSObject fO1;
private FSObject fO2;
private static List parameterNames = makeImmutableList("o1", "o2");
private Match(final FSObject pO1, final FSObject pO2) {
this.fO1 = pO1;
this.fO2 = pO2;
}
@Override
public Object get(final String parameterName) {
switch(parameterName) {
case "o1": return this.fO1;
case "o2": return this.fO2;
default: return null;
}
}
@Override
public Object get(final int index) {
switch(index) {
case 0: return this.fO1;
case 1: return this.fO2;
default: return null;
}
}
public FSObject getO1() {
return this.fO1;
}
public FSObject getO2() {
return this.fO2;
}
@Override
public boolean set(final String parameterName, final Object newValue) {
if (!isMutable()) throw new java.lang.UnsupportedOperationException();
if ("o1".equals(parameterName) ) {
this.fO1 = (FSObject) newValue;
return true;
}
if ("o2".equals(parameterName) ) {
this.fO2 = (FSObject) newValue;
return true;
}
return false;
}
public void setO1(final FSObject pO1) {
if (!isMutable()) throw new java.lang.UnsupportedOperationException();
this.fO1 = pO1;
}
public void setO2(final FSObject pO2) {
if (!isMutable()) throw new java.lang.UnsupportedOperationException();
this.fO2 = pO2;
}
@Override
public String patternName() {
return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent";
}
@Override
public List parameterNames() {
return PatternContent.Match.parameterNames;
}
@Override
public Object[] toArray() {
return new Object[]{fO1, fO2};
}
@Override
public PatternContent.Match toImmutable() {
return isMutable() ? newMatch(fO1, fO2) : this;
}
@Override
public String prettyPrint() {
StringBuilder result = new StringBuilder();
result.append("\"o1\"=" + prettyPrintValue(fO1) + ", ");
result.append("\"o2\"=" + prettyPrintValue(fO2));
return result.toString();
}
@Override
public int hashCode() {
return Objects.hash(fO1, fO2);
}
@Override
public boolean equals(final Object obj) {
if (this == obj)
return true;
if (obj == null) {
return false;
}
if ((obj instanceof PatternContent.Match)) {
PatternContent.Match other = (PatternContent.Match) obj;
return Objects.equals(fO1, other.fO1) && Objects.equals(fO2, other.fO2);
} else {
// this should be infrequent
if (!(obj instanceof IPatternMatch)) {
return false;
}
IPatternMatch otherSig = (IPatternMatch) obj;
return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray());
}
}
@Override
public PatternContent specification() {
return PatternContent.instance();
}
/**
* Returns an empty, mutable match.
* Fields of the mutable match can be filled to create a partial match, usable as matcher input.
*
* @return the empty match.
*
*/
public static PatternContent.Match newEmptyMatch() {
return new Mutable(null, null);
}
/**
* Returns a mutable (partial) match.
* Fields of the mutable match can be filled to create a partial match, usable as matcher input.
*
* @param pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return the new, mutable (partial) match object.
*
*/
public static PatternContent.Match newMutableMatch(final FSObject pO1, final FSObject pO2) {
return new Mutable(pO1, pO2);
}
/**
* Returns a new (partial) match.
* This can be used e.g. to call the matcher with a partial match.
* The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
* @param pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return the (partial) match object.
*
*/
public static PatternContent.Match newMatch(final FSObject pO1, final FSObject pO2) {
return new Immutable(pO1, pO2);
}
private static final class Mutable extends PatternContent.Match {
Mutable(final FSObject pO1, final FSObject pO2) {
super(pO1, pO2);
}
@Override
public boolean isMutable() {
return true;
}
}
private static final class Immutable extends PatternContent.Match {
Immutable(final FSObject pO1, final FSObject pO2) {
super(pO1, pO2);
}
@Override
public boolean isMutable() {
return false;
}
}
}
/**
* Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent pattern,
* providing pattern-specific query methods.
*
*
Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)},
* e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}.
*
*
Matches of the pattern will be represented as {@link Match}.
*
*
Original source:
*
* pattern patternContent(o1: FSObject, o2: FSObject) {
* Dir.contents(o1,o2);
* }
*
*
* @see Match
* @see PatternContent
*
*/
public static class Matcher extends BaseMatcher {
/**
* 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.
*
* @param engine the existing VIATRA Query engine in which this matcher will be created.
* @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
*
*/
public static PatternContent.Matcher on(final ViatraQueryEngine engine) {
// check if matcher already exists
Matcher matcher = engine.getExistingMatcher(querySpecification());
if (matcher == null) {
matcher = (Matcher)engine.getMatcher(querySpecification());
}
return matcher;
}
/**
* @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
* @return an initialized matcher
* @noreference This method is for internal matcher initialization by the framework, do not call it manually.
*
*/
public static PatternContent.Matcher create() {
return new Matcher();
}
private static final int POSITION_O1 = 0;
private static final int POSITION_O2 = 1;
private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(PatternContent.Matcher.class);
/**
* 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.
*
* @param engine the existing VIATRA Query engine in which this matcher will be created.
* @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation
*
*/
private Matcher() {
super(querySpecification());
}
/**
* Returns the set of all matches of the pattern that conform to the given fixed values of some parameters.
* @param pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return matches represented as a Match object.
*
*/
public Collection getAllMatches(final FSObject pO1, final FSObject pO2) {
return rawStreamAllMatches(new Object[]{pO1, pO2}).collect(Collectors.toSet());
}
/**
* Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters.
*
* NOTE: It is important not to modify the source model while the stream is being processed.
* If the match set of the pattern changes during processing, the contents of the stream is undefined.
* In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
* @param pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return a stream of matches represented as a Match object.
*
*/
public Stream streamAllMatches(final FSObject pO1, final FSObject pO2) {
return rawStreamAllMatches(new Object[]{pO1, pO2});
}
/**
* 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 pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return a match represented as a Match object, or null if no match is found.
*
*/
public Optional getOneArbitraryMatch(final FSObject pO1, final FSObject pO2) {
return rawGetOneArbitraryMatch(new Object[]{pO1, pO2});
}
/**
* 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 pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return true if the input is a valid (partial) match of the pattern.
*
*/
public boolean hasMatch(final FSObject pO1, final FSObject pO2) {
return rawHasMatch(new Object[]{pO1, pO2});
}
/**
* Returns the number of all matches of the pattern that conform to the given fixed values of some parameters.
* @param pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return the number of pattern matches found.
*
*/
public int countMatches(final FSObject pO1, final FSObject pO2) {
return rawCountMatches(new Object[]{pO1, pO2});
}
/**
* 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 pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, 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 FSObject pO1, final FSObject pO2, final Consumer super PatternContent.Match> processor) {
return rawForOneArbitraryMatch(new Object[]{pO1, pO2}, processor);
}
/**
* Returns a new (partial) match.
* This can be used e.g. to call the matcher with a partial match.
* The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object.
* @param pO1 the fixed value of pattern parameter o1, or null if not bound.
* @param pO2 the fixed value of pattern parameter o2, or null if not bound.
* @return the (partial) match object.
*
*/
public PatternContent.Match newMatch(final FSObject pO1, final FSObject pO2) {
return PatternContent.Match.newMatch(pO1, pO2);
}
/**
* Retrieve the set of values that occur in matches for o1.
* @return the Set of all values or empty set if there are no matches
*
*/
protected Stream rawStreamAllValuesOfo1(final Object[] parameters) {
return rawStreamAllValues(POSITION_O1, parameters).map(FSObject.class::cast);
}
/**
* Retrieve the set of values that occur in matches for o1.
* @return the Set of all values or empty set if there are no matches
*
*/
public Set getAllValuesOfo1() {
return rawStreamAllValuesOfo1(emptyArray()).collect(Collectors.toSet());
}
/**
* Retrieve the set of values that occur in matches for o1.
* @return the Set of all values or empty set if there are no matches
*
*/
public Stream streamAllValuesOfo1() {
return rawStreamAllValuesOfo1(emptyArray());
}
/**
* Retrieve the set of values that occur in matches for o1.
*
* NOTE: It is important not to modify the source model while the stream is being processed.
* If the match set of the pattern changes during processing, the contents of the stream is undefined.
* In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
*
* @return the Stream of all values or empty set if there are no matches
*
*/
public Stream streamAllValuesOfo1(final PatternContent.Match partialMatch) {
return rawStreamAllValuesOfo1(partialMatch.toArray());
}
/**
* Retrieve the set of values that occur in matches for o1.
*
* NOTE: It is important not to modify the source model while the stream is being processed.
* If the match set of the pattern changes during processing, the contents of the stream is undefined.
* In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
*
* @return the Stream of all values or empty set if there are no matches
*
*/
public Stream streamAllValuesOfo1(final FSObject pO2) {
return rawStreamAllValuesOfo1(new Object[]{null, pO2});
}
/**
* Retrieve the set of values that occur in matches for o1.
* @return the Set of all values or empty set if there are no matches
*
*/
public Set getAllValuesOfo1(final PatternContent.Match partialMatch) {
return rawStreamAllValuesOfo1(partialMatch.toArray()).collect(Collectors.toSet());
}
/**
* Retrieve the set of values that occur in matches for o1.
* @return the Set of all values or empty set if there are no matches
*
*/
public Set getAllValuesOfo1(final FSObject pO2) {
return rawStreamAllValuesOfo1(new Object[]{null, pO2}).collect(Collectors.toSet());
}
/**
* Retrieve the set of values that occur in matches for o2.
* @return the Set of all values or empty set if there are no matches
*
*/
protected Stream rawStreamAllValuesOfo2(final Object[] parameters) {
return rawStreamAllValues(POSITION_O2, parameters).map(FSObject.class::cast);
}
/**
* Retrieve the set of values that occur in matches for o2.
* @return the Set of all values or empty set if there are no matches
*
*/
public Set getAllValuesOfo2() {
return rawStreamAllValuesOfo2(emptyArray()).collect(Collectors.toSet());
}
/**
* Retrieve the set of values that occur in matches for o2.
* @return the Set of all values or empty set if there are no matches
*
*/
public Stream streamAllValuesOfo2() {
return rawStreamAllValuesOfo2(emptyArray());
}
/**
* Retrieve the set of values that occur in matches for o2.
*
* NOTE: It is important not to modify the source model while the stream is being processed.
* If the match set of the pattern changes during processing, the contents of the stream is undefined.
* In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
*
* @return the Stream of all values or empty set if there are no matches
*
*/
public Stream streamAllValuesOfo2(final PatternContent.Match partialMatch) {
return rawStreamAllValuesOfo2(partialMatch.toArray());
}
/**
* Retrieve the set of values that occur in matches for o2.
*
* NOTE: It is important not to modify the source model while the stream is being processed.
* If the match set of the pattern changes during processing, the contents of the stream is undefined.
* In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code.
*
* @return the Stream of all values or empty set if there are no matches
*
*/
public Stream streamAllValuesOfo2(final FSObject pO1) {
return rawStreamAllValuesOfo2(new Object[]{pO1, null});
}
/**
* Retrieve the set of values that occur in matches for o2.
* @return the Set of all values or empty set if there are no matches
*
*/
public Set getAllValuesOfo2(final PatternContent.Match partialMatch) {
return rawStreamAllValuesOfo2(partialMatch.toArray()).collect(Collectors.toSet());
}
/**
* Retrieve the set of values that occur in matches for o2.
* @return the Set of all values or empty set if there are no matches
*
*/
public Set getAllValuesOfo2(final FSObject pO1) {
return rawStreamAllValuesOfo2(new Object[]{pO1, null}).collect(Collectors.toSet());
}
@Override
protected PatternContent.Match tupleToMatch(final Tuple t) {
try {
return PatternContent.Match.newMatch((FSObject) t.get(POSITION_O1), (FSObject) t.get(POSITION_O2));
} catch(ClassCastException e) {
LOGGER.error("Element(s) in tuple not properly typed!",e);
return null;
}
}
@Override
protected PatternContent.Match arrayToMatch(final Object[] match) {
try {
return PatternContent.Match.newMatch((FSObject) match[POSITION_O1], (FSObject) match[POSITION_O2]);
} catch(ClassCastException e) {
LOGGER.error("Element(s) in array not properly typed!",e);
return null;
}
}
@Override
protected PatternContent.Match arrayToMatchMutable(final Object[] match) {
try {
return PatternContent.Match.newMutableMatch((FSObject) match[POSITION_O1], (FSObject) match[POSITION_O2]);
} 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 ViatraQueryRuntimeException if the pattern definition could not be loaded
*
*/
public static IQuerySpecification querySpecification() {
return PatternContent.instance();
}
}
private PatternContent() {
super(GeneratedPQuery.INSTANCE);
}
/**
* @return the singleton instance of the query specification
* @throws ViatraQueryRuntimeException if the pattern definition could not be loaded
*
*/
public static PatternContent instance() {
try{
return LazyHolder.INSTANCE;
} catch (ExceptionInInitializerError err) {
throw processInitializerError(err);
}
}
@Override
protected PatternContent.Matcher instantiate(final ViatraQueryEngine engine) {
return PatternContent.Matcher.on(engine);
}
@Override
public PatternContent.Matcher instantiate() {
return PatternContent.Matcher.create();
}
@Override
public PatternContent.Match newEmptyMatch() {
return PatternContent.Match.newEmptyMatch();
}
@Override
public PatternContent.Match newMatch(final Object... parameters) {
return PatternContent.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject) parameters[0], (hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject) parameters[1]);
}
/**
* Inner class allowing the singleton instance of {@link PatternContent} to be created
* not at the class load time of the outer class,
* but rather at the first call to {@link PatternContent#instance()}.
*
* This workaround is required e.g. to support recursion.
*
*/
private static class LazyHolder {
private static final PatternContent INSTANCE = new PatternContent();
/**
* Statically initializes the query specification after the field {@link #INSTANCE} is assigned.
* This initialization order is required to support indirect recursion.
*
*
The static initializer is defined using a helper field to work around limitations of the code generator.
*
*/
private static final Object STATIC_INITIALIZER = ensureInitialized();
public static Object ensureInitialized() {
INSTANCE.ensureInitializedInternal();
return null;
}
}
private static class GeneratedPQuery extends BaseGeneratedEMFPQuery {
private static final PatternContent.GeneratedPQuery INSTANCE = new GeneratedPQuery();
private final PParameter parameter_o1 = new PParameter("o1", "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("FS", "FSObject")), PParameterDirection.INOUT);
private final PParameter parameter_o2 = new PParameter("o2", "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.Filesystem.FSObject", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("FS", "FSObject")), PParameterDirection.INOUT);
private final List parameters = Arrays.asList(parameter_o1, parameter_o2);
private GeneratedPQuery() {
super(PVisibility.PUBLIC);
}
@Override
public String getFullyQualifiedName() {
return "hu.bme.mit.inf.dslreasoner.domains.alloyexamples.patternContent";
}
@Override
public List getParameterNames() {
return Arrays.asList("o1","o2");
}
@Override
public List getParameters() {
return parameters;
}
@Override
public Set doGetContainedBodies() {
setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED));
Set bodies = new LinkedHashSet<>();
{
PBody body = new PBody(this);
PVariable var_o1 = body.getOrCreateVariableByName("o1");
PVariable var_o2 = body.getOrCreateVariableByName("o2");
new TypeConstraint(body, Tuples.flatTupleOf(var_o1), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
new TypeConstraint(body, Tuples.flatTupleOf(var_o2), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
body.setSymbolicParameters(Arrays.asList(
new ExportedParameter(body, var_o1, parameter_o1),
new ExportedParameter(body, var_o2, parameter_o2)
));
// Dir.contents(o1,o2)
new TypeConstraint(body, Tuples.flatTupleOf(var_o1), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "Dir")));
PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}");
new TypeConstraint(body, Tuples.flatTupleOf(var_o1, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("FS", "Dir", "contents")));
new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("FS", "FSObject")));
new Equality(body, var__virtual_0_, var_o2);
bodies.add(body);
}
return bodies;
}
}
}