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package org.zwobble.mammoth.internal.docx;
import org.zwobble.mammoth.internal.documents.DocumentElement;
import org.zwobble.mammoth.internal.results.InternalResult;
import java.util.List;
import java.util.function.BiFunction;
import java.util.function.Function;
import static org.zwobble.mammoth.internal.util.Iterables.lazyConcat;
import static org.zwobble.mammoth.internal.util.Iterables.lazyFlatMap;
import static org.zwobble.mammoth.internal.util.Lists.*;
public class ReadResult {
public static final ReadResult EMPTY_SUCCESS = success(list());
public static <T> ReadResult flatMap(Iterable<T> iterable, Function<T, ReadResult> function) {
List<ReadResult> results = eagerMap(iterable, function);
return new ReadResult(
eagerFlatMap(results, result -> result.elements),
eagerFlatMap(results, result -> result.extra),
lazyFlatMap(results, result -> result.warnings));
}
public static <T> ReadResult map(
InternalResult<T> first,
ReadResult second,
BiFunction<T, List<DocumentElement>, DocumentElement> function)
{
return new ReadResult(
list(function.apply(first.getValue(), second.elements)),
second.extra,
lazyConcat(first.getWarnings(), second.warnings));
}
public static ReadResult success(DocumentElement element) {
return success(list(element));
}
public static ReadResult success(List<DocumentElement> elements) {
return new ReadResult(elements, list(), list());
}
public static ReadResult emptyWithWarning(String warning) {
return withWarning(list(), warning);
}
public static ReadResult withWarning(DocumentElement element, String warning) {
return withWarning(list(element), warning);
}
public static ReadResult withWarning(List<DocumentElement> elements, String warning) {
return new ReadResult(elements, list(), list(warning));
}
private final List<DocumentElement> elements;
private final List<DocumentElement> extra;
private final Iterable<String> warnings;
public ReadResult(List<DocumentElement> elements, List<DocumentElement> extra, Iterable<String> warnings) {
this.elements = elements;
this.extra = extra;
this.warnings = warnings;
}
public ReadResult map(Function<List<DocumentElement>, List<DocumentElement>> function) {
return new ReadResult(
function.apply(elements),
extra,
warnings);
}
public ReadResult flatMap(Function<List<DocumentElement>, ReadResult> function) {
ReadResult result = function.apply(elements);
return new ReadResult(
result.elements,
eagerConcat(extra, result.extra),
lazyConcat(warnings, result.warnings));
}
public ReadResult toExtra() {
return new ReadResult(list(), eagerConcat(extra, elements), warnings);
}
public ReadResult appendExtra() {
return new ReadResult(eagerConcat(elements, extra), list(), warnings);
}
public InternalResult<List<DocumentElement>> toResult() {
return new InternalResult<>(elements, warnings);
}
}
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