| // Copyright 2007, 2008 The Apache Software Foundation |
| // |
| // 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 org.apache.tapestry.internal.translator; |
| |
| import org.apache.tapestry.Translator; |
| import org.apache.tapestry.ValidationException; |
| import org.apache.tapestry.ioc.Messages; |
| |
| /** |
| * A translator for type long. |
| */ |
| public class LongTranslator implements Translator<Long> |
| { |
| public Class<Long> getType() |
| { |
| return Long.class; |
| } |
| |
| /** |
| * Parses blank values to null, otherwise parses the client value to a long |
| * |
| * @throws ValidationException if the clientValue can not be parsed |
| */ |
| public Long parseClient(String clientValue, Messages messages) throws ValidationException |
| { |
| |
| try |
| { |
| return new Long(clientValue.trim()); |
| } |
| catch (NumberFormatException ex) |
| { |
| throw new ValidationException(messages.format("integer-format-exception", clientValue)); |
| } |
| } |
| |
| /** |
| * Converts null to the blank string, non-null to a string representation. |
| */ |
| public String toClient(Long value) |
| { |
| return value.toString(); |
| } |
| } |