import com.google.common.base.VerifyException;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.util.Arrays;
+import java.util.Collection;
import java.util.List;
import java.util.Map;
+import java.util.NoSuchElementException;
import java.util.Objects;
+import java.util.Set;
import java.util.regex.Pattern;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
checkArgument(expression, "expected one of: %s \n%but was: %s", options, value);
}
+ /**
+ * Return value and check whether specified value is null and if so throws exception. This method supports
+ * require default getter methods.
+ *
+ * @param value Value itself
+ * @param name Name of the value
+ * @return Non-null value
+ * @throws NoSuchElementException if value is null
+ */
+ public static <T> @NonNull T require(final @Nullable T value, final @NonNull String name) {
+ if (value == null) {
+ throw new NoSuchElementException("Value of " + name + " is not present");
+ }
+ return value;
+ }
+
/**
* A shortcut for {@code Preconditions.checkNotNull(value, "Key component \"%s\" must not be null", name)}.
*
*/
public static void appendValue(final ToStringHelper helper, final String name, final byte[] value) {
if (value != null) {
+ // FIXME: MDSAL-692: use hex-encoding instead
helper.add(name, Arrays.toString(value));
}
}
+ /**
+ * Append augmentation map of an Augmentable to a ToStringHelper. If augmentations are null or empt, this method
+ * does nothing.
+ *
+ * @param helper Helper to append to
+ * @param name Name of the augmentation value
+ * @param augmentable Augmentable object to
+ * @throws NullPointerException if any argument is null
+ */
+ public static void appendAugmentations(final ToStringHelper helper, final String name,
+ final Augmentable<?> augmentable) {
+ final var augments = augmentable.augmentations();
+ if (!augments.isEmpty()) {
+ helper.add(name, augments.values());
+ }
+ }
+
/**
* Compile a list of pattern regular expressions and return them as an array. The list must hold at least two
* expressions.
* @throws IllegalArgumentException always
*/
public static void throwInvalidLength(final String expected, final byte[] actual) {
+ // FIXME: MDSAL-692: use hex-encoding instead
throwInvalidLength(expected, Arrays.toString(actual));
}
return wrapHashCode(Arrays.hashCode(obj));
}
+ /**
+ * The constant '31' is the result of folding this code:
+ * <pre>
+ * <code>
+ * final int prime = 31;
+ * int result = 1;
+ * result = result * prime + Objects.hashCode(obj);
+ * return result;
+ * </code>
+ * </pre>
+ * when hashCode is returned as 0, such as due to obj being null or its hashCode being 0.
+ *
+ * @param hash Wrapped object hash
+ * @return Wrapper object hash
+ */
+ private static int wrapHashCode(final int hash) {
+ return hash == 0 ? 31 : hash;
+ }
+
/**
* Utility method for checking whether a target object is a compatible DataObject.
*
* @param requiredClass Required item class
* @param fieldName name of the field being filled
* @param list List, which items should be checked
- * @throws IllegalArgumentException if a list item is not instance of {@code requiredItemClass}
+ * @return Type-checked List
+ * @throws IllegalArgumentException if a list item is not instance of {@code requiredClass}
* @throws NullPointerException if {@code requiredClass} or {@code fieldName} is null
*/
@SuppressWarnings("unchecked")
public static <T> @Nullable List<T> checkListFieldCast(final @NonNull Class<?> requiredClass,
final @NonNull String fieldName, final @Nullable List<?> list) {
- if (list != null) {
- try {
- list.forEach(item -> requiredClass.cast(requireNonNull(item)));
- } catch (ClassCastException | NullPointerException e) {
- throw new IllegalArgumentException("Invalid input list item for property \"" + requireNonNull(fieldName)
- + "\"", e);
- }
- }
+ checkCollectionField(requiredClass, fieldName, list);
return (List<T>) list;
}
/**
- * The constant '31' is the result of folding this code:
- * <pre>
- * <code>
- * final int prime = 31;
- * int result = 1;
- * result = result * prime + Objects.hashCode(obj);
- * return result;
- * </code>
- * </pre>
- * when hashCode is returned as 0, such as due to obj being null or its hashCode being 0.
+ * Utility method for checking whether the items of target set is compatible.
*
- * @param hash Wrapped object hash
- * @return Wrapper object hash
+ * @param requiredClass Required item class
+ * @param fieldName name of the field being filled
+ * @param set Set, which items should be checked
+ * @return Type-checked Set
+ * @throws IllegalArgumentException if a set item is not instance of {@code requiredItemClass}
+ * @throws NullPointerException if {@code requiredClass} or {@code fieldName} is null
*/
- private static int wrapHashCode(final int hash) {
- return hash == 0 ? 31 : hash;
+ @SuppressWarnings("unchecked")
+ public static <T> @Nullable Set<T> checkSetFieldCast(final @NonNull Class<?> requiredClass,
+ final @NonNull String fieldName, final @Nullable Set<?> set) {
+ checkCollectionField(requiredClass, fieldName, set);
+ return (Set<T>) set;
+ }
+
+ @SuppressFBWarnings(value = "DCN_NULLPOINTER_EXCEPTION",
+ justification = "Internal NPE->IAE conversion")
+ private static void checkCollectionField(final @NonNull Class<?> requiredClass,
+ final @NonNull String fieldName, final @Nullable Collection<?> collection) {
+ if (collection != null) {
+ try {
+ collection.forEach(item -> requiredClass.cast(requireNonNull(item)));
+ } catch (ClassCastException | NullPointerException e) {
+ throw new IllegalArgumentException("Invalid input item for property \"" + requireNonNull(fieldName)
+ + "\"", e);
+ }
+ }
}
}
Code Review / mdsal.git / blobdiff