| /** |
| * Copyright (c) 2008-2011, http://www.snakeyaml.org |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package examples; |
| |
| import java.math.BigDecimal; |
| import java.util.Map; |
| import java.util.regex.Pattern; |
| |
| import junit.framework.TestCase; |
| |
| import org.yaml.snakeyaml.Yaml; |
| import org.yaml.snakeyaml.constructor.AbstractConstruct; |
| import org.yaml.snakeyaml.constructor.SafeConstructor; |
| import org.yaml.snakeyaml.nodes.Node; |
| import org.yaml.snakeyaml.nodes.ScalarNode; |
| import org.yaml.snakeyaml.nodes.Tag; |
| |
| /** |
| * Use custom implicit resolver when the runtime class is not defined. |
| * http://code.google.com/p/snakeyaml/issues/detail?id=75 |
| */ |
| public class CustomImplicitResolverTest extends TestCase { |
| private final Tag CUSTOM_TAG = new Tag("!BigDecimalDividedBy100"); |
| private final Pattern CUSTOM_PATTERN = Pattern.compile("\\d+%"); |
| |
| @SuppressWarnings("unchecked") |
| public void testImplicit() { |
| Yaml yaml = new Yaml(new BigConstructor()); |
| yaml.addImplicitResolver(CUSTOM_TAG, CUSTOM_PATTERN, "-0123456789"); |
| Map<String, Object> obj = (Map<String, Object>) yaml.load("bar: 50%"); |
| assertEquals("0.5", obj.get("bar").toString()); |
| assertEquals(BigDecimal.class, obj.get("bar").getClass()); |
| } |
| |
| public void testImplicitFailure() { |
| Yaml yaml = new Yaml(new BigConstructor()); |
| yaml.addImplicitResolver(CUSTOM_TAG, Pattern.compile("\\d+%"), "-0123456789"); |
| try { |
| yaml.load("bar: !!float 50%"); |
| fail("Both implicit and explicit are present."); |
| } catch (NumberFormatException e) { |
| assertEquals("For input string: \"50%\"", e.getMessage()); |
| } |
| } |
| |
| class BigConstructor extends SafeConstructor { |
| public BigConstructor() { |
| this.yamlConstructors.put(CUSTOM_TAG, new ConstructBig()); |
| } |
| |
| private class ConstructBig extends AbstractConstruct { |
| public Object construct(Node node) { |
| String val = (String) constructScalar((ScalarNode) node); |
| return new BigDecimal(val.substring(0, val.length() - 1)) |
| .divide(new BigDecimal(100)); |
| } |
| } |
| } |
| } |