30 lines
882 B
Java
30 lines
882 B
Java
package it.cavallium.datagen.nativedata;
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import it.cavallium.datagen.DataUpgrader;
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import java.util.List;
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public class UpgradeUtil {
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@SuppressWarnings("unchecked")
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public static <A, B> List<B> upgradeArray(List<A> from, DataUpgrader<A, B> upgrader) {
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Object[] array;
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if (from.getClass() == ImmutableWrappedArrayList.class
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&& ((ImmutableWrappedArrayList<?>) from).a.getClass() == Object[].class) {
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array = ((ImmutableWrappedArrayList<?>) from).a;
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} else {
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array = from.toArray();
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}
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for (int i = 0; i < array.length; i++) {
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array[i] = (B) upgrader.upgrade((A) array[i]);
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}
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return (ImmutableWrappedArrayList<B>) new ImmutableWrappedArrayList<>(array);
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}
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public static <A, B> B upgradeNullable(A nullableValue, DataUpgrader<A, B> upgrader) {
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if (nullableValue == null) {
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return null;
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} else {
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return upgrader.upgrade(nullableValue);
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}
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}
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}
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