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Define hasMaximumSize Rater #37
Signed-off-by: Mārtiņš Avots <martins.avots@splitcells.net>
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‎projects/net.splitcells.gel.core/src/main/java/net/splitcells/gel/rating/rater/lib/HasMaximalSize.java‎

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/* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
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* SPDX-FileCopyrightText: Contributors To The `net.splitcells.*` Projects
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*/
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package net.splitcells.gel.rating.rater.lib;
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import net.splitcells.dem.data.set.Set;
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import net.splitcells.dem.data.set.list.List;
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import net.splitcells.dem.lang.dom.Domable;
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import net.splitcells.dem.object.Discoverable;
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import net.splitcells.dem.utils.CommonFunctions;
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import net.splitcells.gel.constraint.Constraint;
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import net.splitcells.gel.constraint.GroupId;
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import net.splitcells.gel.data.view.Line;
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import net.splitcells.gel.data.view.View;
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import net.splitcells.gel.rating.framework.Rating;
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import net.splitcells.gel.rating.rater.framework.Rater;
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import net.splitcells.gel.rating.rater.framework.RatingEvent;
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import static net.splitcells.dem.data.set.Sets.toSetOfUniques;
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import static net.splitcells.dem.data.set.list.Lists.list;
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import static net.splitcells.dem.lang.tree.TreeI.tree;
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import static net.splitcells.dem.resource.communication.log.Logs.logs;
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import static net.splitcells.gel.rating.framework.LocalRatingI.localRating;
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import static net.splitcells.gel.rating.rater.framework.RatingEventI.ratingEvent;
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import static net.splitcells.gel.rating.type.Cost.cost;
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import static net.splitcells.gel.rating.type.Cost.noCost;
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public class HasMaximalSize implements Rater {
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public static HasMaximalSize hasMaximalSize(int minimalSize) {
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return new HasMaximalSize(minimalSize);
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}
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private final int maximalSize;
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private final List<Discoverable> contexts = list();
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private HasMaximalSize(int maximalSize) {
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this.maximalSize = maximalSize;
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}
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@Override
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public RatingEvent ratingAfterAddition(View lines, Line addition, List<Constraint> children
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, View ratingsBeforeAddition) {
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final var individualRating = rating(lines, false);
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final var additionalRatings
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= rateLines(lines, addition, children, individualRating);
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additionalRatings.additions().put(addition
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, localRating()
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.withPropagationTo(children)
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.withRating(individualRating)
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.withResultingGroupId(addition.value(Constraint.INCOMING_CONSTRAINT_GROUP))
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);
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return additionalRatings;
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}
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private RatingEvent rateLines(View lines, Line changed, List<Constraint> children, Rating cost) {
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final RatingEvent linesRating = ratingEvent();
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lines.rawLinesView().stream()
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.filter(e -> e != null)
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.filter(e -> e.index() != changed.index())
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.forEach(e -> {
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linesRating.updateRating_withReplacement(e,
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localRating().
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withPropagationTo(children).
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withRating(cost).
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withResultingGroupId(changed.value(Constraint.INCOMING_CONSTRAINT_GROUP))
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);
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});
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return linesRating;
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}
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@Override
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public String toSimpleDescription(Line line, View groupsLineProcessing, GroupId incomingGroup) {
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return "Group size should be at most " + maximalSize + ", but is " + groupsLineProcessing.size() + " instead.";
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}
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@Override
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public RatingEvent rating_before_removal
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(View lines
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, Line removal
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, List<Constraint> children
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, View ratingsBeforeRemoval) {
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return rateLines(lines, removal, children, rating(lines, true));
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}
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private Rating rating(View lines, boolean beforeRemoval) {
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final Rating rating;
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final int actualSize;
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if (beforeRemoval) {
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actualSize = lines.size() - 1;
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} else {
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actualSize = lines.size();
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}
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if (actualSize == 0) {
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logs().warn(getClass().getName() + " should not be run on empty groups.");
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rating = noCost();
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} else if (actualSize > maximalSize) {
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final int difference = actualSize - maximalSize;
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rating = cost(difference / ((double) actualSize));
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} else {
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rating = noCost();
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}
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return rating;
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}
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@Override
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public Class<? extends Rater> type() {
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return HasMaximalSize.class;
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}
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@Override
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public List<Domable> arguments() {
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return list(() -> tree(HasMaximalSize.class.getSimpleName()).withChild(tree("" + maximalSize)));
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}
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@Override
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public boolean equals(Object arg) {
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if (arg instanceof HasMaximalSize cArg) {
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return this.maximalSize == cArg.maximalSize;
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}
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return false;
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}
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@Override
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public int hashCode() {
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return CommonFunctions.hashCode(maximalSize);
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}
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@Override
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public void addContext(Discoverable context) {
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contexts.add(context);
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}
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@Override
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public Set<List<String>> paths() {
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return contexts.stream().map(Discoverable::path).collect(toSetOfUniques());
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}
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@Override
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public String toString() {
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return getClass().getSimpleName() + ", " + maximalSize;
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}
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}

‎projects/net.splitcells.gel.editor/src/main/java/net/splitcells/gel/editor/geal/runners/FunctionCallMetaExecutor.java‎

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import static net.splitcells.gel.editor.geal.runners.HasMinimalDistanceOfCallRunner.hasMinimalDistanceOfCallRunner;
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import static net.splitcells.gel.editor.geal.runners.HasSizeCallRunner.hasSizeCallRunner;
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import static net.splitcells.gel.editor.geal.runners.ImportCsvDataRunner.importCsvDataRunner;
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import static net.splitcells.gel.editor.geal.runners.MaxSizeCallRunner.maxSizeCallRunner;
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import static net.splitcells.gel.editor.geal.runners.MinSizeCallRunner.minSizeCallRunner;
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import static net.splitcells.gel.editor.geal.runners.NotRunner.notRunner;
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import static net.splitcells.gel.editor.geal.runners.OutputFormatCallRunner.outputFormatCallRunner;
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.registerExecutor(notRunner())
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.registerExecutor(equalsRunner())
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.registerExecutor(minSizeCallRunner())
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.registerExecutor(maxSizeCallRunner())
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;
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}
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‎projects/net.splitcells.gel.editor/src/main/java/net/splitcells/gel/editor/geal/runners/MaxSizeCallRunner.java‎

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/* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
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* SPDX-FileCopyrightText: Contributors To The `net.splitcells.*` Projects
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*/
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package net.splitcells.gel.editor.geal.runners;
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import lombok.val;
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import net.splitcells.dem.data.set.list.List;
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import net.splitcells.gel.editor.Editor;
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import net.splitcells.gel.editor.geal.lang.FunctionCallDesc;
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import java.util.Optional;
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import static net.splitcells.dem.data.set.list.Lists.list;
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import static net.splitcells.gel.editor.geal.runners.FunctionCallRun.functionCallRun;
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import static net.splitcells.gel.editor.geal.runners.FunctionCallRunnerParser.functionCallRunnerParser;
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import static net.splitcells.gel.rating.rater.lib.HasMaximalSize.hasMaximalSize;
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import static net.splitcells.gel.rating.rater.lib.HasMinimalSize.hasMinimalSize;
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public class MaxSizeCallRunner implements FunctionCallRunner {
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public static FunctionCallRunner maxSizeCallRunner() {
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return new MaxSizeCallRunner();
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}
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private static final String MAX_SIZE_NAME = "hasMaximumSize";
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private static class Args {
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int maximalSize;
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}
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private static final FunctionCallRunnerParser<Args> PARSER = functionCallRunnerParser(MAX_SIZE_NAME
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, 1
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, fcr -> {
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val args = new Args();
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fcr.requireSubjectAbsence();
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args.maximalSize = fcr.parseArgument(Integer.class, 0, "maximalSize");
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fcr.requireArgumentCount(1);
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return args;
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});
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private MaxSizeCallRunner() {
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}
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@Override public FunctionCallRun execute(FunctionCallDesc functionCall, Optional<Object> subject, Editor context) {
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final var run = functionCallRun(subject, context);
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if (!functionCall.getName().getValue().equals(MAX_SIZE_NAME) || subject.isPresent() || functionCall.getArguments().size() != 1) {
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return run;
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}
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val args = PARSER.parse(subject, context, functionCall);
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run.setResult(Optional.of(hasMaximalSize(args.maximalSize)));
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return run;
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}
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@Override public List<FunctionCallRunnerParser<?>> parsers() {
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return list(PARSER);
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}
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}

‎projects/net.splitcells.gel.editor/src/main/resources/html/net/splitcells/gel/editor/geal/examples/sports-course-planning.txt‎

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@@ -49,7 +49,7 @@ courseScheduling . forEach(not(equals(assignedSport, 'Dummy Course')))
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. then(hasSize(optCourseSize));
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courseScheduling . forEach(not(equals(assignedSport, 'Dummy Course')))
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. forEach(assignedSport, assignedHalfYear)
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. then(atMost(maxCourseSize, size));
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. then(hasMaximumSize(maxCourseSize));
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courseScheduling . forEach(not(equals(assignedSport, 'Dummy Course')))
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. forEach(assignedHalfYear)
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. then(atMost(maxCoursesPerHalfYear, uniqueValueCount(assignedSport)));

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