01 /*
02 * SPDX-License-Identifier: Apache-2.0
03 *
04 * Copyright 2008-2017 the original author or authors.
05 *
06 * Licensed under the Apache License, Version 2.0 (the "License");
07 * you may not use this file except in compliance with the License.
08 * You may obtain a copy of the License at
09 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package griffon.core.formatters;
19
20 import javax.annotation.Nonnull;
21 import javax.annotation.Nullable;
22
23 import static java.util.Objects.requireNonNull;
24
25 /**
26 * @author Andres Almiray
27 * @since 2.0.0
28 */
29 public abstract class AbstractFormatter<T> implements Formatter<T> {
30 protected static int parseHexInt(@Nonnull String val, @Nonnull Class<?> klass) throws ParseException {
31 try {
32 return Integer.parseInt(String.valueOf(requireNonNull(val)).trim(), 16) & 0xFF;
33 } catch (NumberFormatException e) {
34 throw parseError(val, klass, e);
35 }
36 }
37
38 protected static int parseHexInt(@Nonnull Number val) {
39 return requireNonNull(val).intValue() & 0xFF;
40 }
41
42 protected static ParseException parseError(@Nullable Object value, @Nonnull Class<?> klass) throws ParseException {
43 throw new ParseException("Can't convert '" + value + "' into " + requireNonNull(klass).getName());
44 }
45
46 protected static ParseException parseError(@Nullable Object value, @Nonnull Class<?> klass, @Nonnull Exception e) throws ParseException {
47 throw new ParseException("Can't convert '" + value + "' into " + requireNonNull(klass).getName(), requireNonNull(e));
48 }
49 }
|