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package org.zwobble.mammoth.internal.docx;
import org.zwobble.mammoth.internal.documents.NumberingLevel;
import java.util.Map;
import java.util.Optional;
import static org.zwobble.mammoth.internal.util.Maps.lookup;
import static org.zwobble.mammoth.internal.util.Maps.map;
public class Numbering {
public static class AbstractNum {
private final Map<String, NumberingLevel> levels;
private final Optional<String> numStyleLink;
public AbstractNum(Map<String, NumberingLevel> levels, Optional<String> numStyleLink) {
this.levels = levels;
this.numStyleLink = numStyleLink;
}
}
public static class Num {
private final Optional<String> abstractNumId;
public Num(Optional<String> abstractNumId) {
this.abstractNumId = abstractNumId;
}
}
public static final Numbering EMPTY = new Numbering(map(), map(), Styles.EMPTY);
private final Map<String, AbstractNum> abstractNums;
private final Map<String, Num> nums;
private final Styles styles;
public Numbering(
Map<String, AbstractNum> abstractNums,
Map<String, Num> nums,
Styles styles
) {
this.abstractNums = abstractNums;
this.nums = nums;
this.styles = styles;
}
public Optional<NumberingLevel> findLevel(String numId, String level) {
return lookup(nums, numId)
.flatMap(num -> num.abstractNumId)
.flatMap(abstractNumId -> lookup(this.abstractNums, abstractNumId))
.flatMap(abstractNum -> {
if (abstractNum.numStyleLink.isPresent()) {
return abstractNum.numStyleLink
.flatMap(numStyleLink -> styles.findNumberingStyleById(numStyleLink))
.flatMap(style -> style.getNumId())
.flatMap(linkedNumId -> findLevel(linkedNumId, level));
} else {
return lookup(abstractNum.levels, level);
}
});
}
}
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