How to use

toArray

method

in

org.apache.sis.internal.util.CollectionsExt

case 0:  return Collections.emptyList();
case 1:  return Collections.singletonList(merged.get(0));
default: return Containers.unmodifiableList(CollectionsExt.toArray(merged, Identifier.class));

case 0:  return Collections.emptyList();
case 1:  return Collections.singletonList(merged.get(0));
default: return Containers.unmodifiableList(CollectionsExt.toArray(merged, Identifier.class));

  /**
   * Tests {@link CollectionsExt#toArray(Collection, Class)}.
   *
   * @since 0.6
   */
  @Test
  public void testToArray() {
    final String[] expected = new String[] {"One", "Two", "Three"};
    final String[] actual = CollectionsExt.toArray(Arrays.asList(expected), String.class);
    assertArrayEquals(expected, actual);
  }
}

/**
 * Creates a new descriptor with the same properties than the {@code provided} one, but completed with
 * information not found in GML. Those extra information are given by the {@code complete} descriptor.
 *
 * <p>It is the caller's responsibility to construct the {@code merged} properties as a merge of the properties
 * of the two given descriptors. This can be done with the help of {@link #mergeArrays(String, Class, Collection,
 * Map, Identifier)} among others.</p>
 */
private static <T> ParameterDescriptor<T> create(final Map<String,?>          merged,
                         final ParameterDescriptor<?> provided,
                         final ParameterDescriptor<T> complete)
{
  final Class<T> valueClass = complete.getValueClass();
  return new DefaultParameterDescriptor<>(merged,
      provided.getMinimumOccurs(),
      provided.getMaximumOccurs(),
      // Values below this point are not provided in GML documents,
      // so they must be inferred from the pre-defined descriptor.
      valueClass,
      Parameters.getValueDomain(complete),
      CollectionsExt.toArray(complete.getValidValues(), valueClass),
      complete.getDefaultValue());
}

/**
 * Creates a new descriptor with the same properties than the {@code provided} one, but completed with
 * information not found in GML. Those extra information are given by the {@code complete} descriptor.
 *
 * <p>It is the caller's responsibility to construct the {@code merged} properties as a merge of the properties
 * of the two given descriptors. This can be done with the help of {@link #mergeArrays(String, Class, Collection,
 * Map, Identifier)} among others.</p>
 */
private static <T> ParameterDescriptor<T> create(final Map<String,?>          merged,
                         final ParameterDescriptor<?> provided,
                         final ParameterDescriptor<T> complete)
{
  final Class<T> valueClass = complete.getValueClass();
  return new DefaultParameterDescriptor<>(merged,
      provided.getMinimumOccurs(),
      provided.getMaximumOccurs(),
      // Values below this point are not provided in GML documents,
      // so they must be inferred from the pre-defined descriptor.
      valueClass,
      Parameters.getValueDomain(complete),
      CollectionsExt.toArray(complete.getValidValues(), valueClass),
      complete.getDefaultValue());
}