| // Copyright 2005 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.form.validator; |
| |
| import org.apache.tapestry.IMarkupWriter; |
| import org.apache.tapestry.IRequestCycle; |
| import org.apache.tapestry.form.FormComponentContributorContext; |
| import org.apache.tapestry.form.IFormComponent; |
| import org.apache.tapestry.form.ValidationMessages; |
| import org.apache.tapestry.json.JSONLiteral; |
| import org.apache.tapestry.json.JSONObject; |
| import org.apache.tapestry.util.RegexpMatcher; |
| import org.apache.tapestry.valid.ValidationConstants; |
| import org.apache.tapestry.valid.ValidationConstraint; |
| import org.apache.tapestry.valid.ValidationStrings; |
| import org.apache.tapestry.valid.ValidatorException; |
| |
| /** |
| * Validates that the user input, a string, is an email address (by checking it against a regular |
| * expression). |
| * |
| * @author Howard Lewis Ship |
| * @since 4.0 |
| */ |
| public class Email extends BaseValidator |
| { |
| public static final String PATTERN = "^[A-Za-z0-9]+([-_\\.]*[A-Za-z0-9]+)*@[A-Za-z0-9]+([-_\\.]*[A-Za-z0-9]+)*(\\.[_A-Za-z]{2,6})$"; |
| |
| // TODO: Possible thread safety issue if the validator |
| // is shared across threads, because the matcher |
| // will be too. |
| |
| private RegexpMatcher _matcher = new RegexpMatcher(); |
| |
| public Email() |
| { |
| } |
| |
| public Email(String initializer) |
| { |
| super(initializer); |
| } |
| |
| public void validate(IFormComponent field, ValidationMessages messages, Object object) |
| throws ValidatorException |
| { |
| String input = (String) object; |
| |
| if (!_matcher.matches(PATTERN, input)) |
| throw new ValidatorException(buildMessage(messages, field), |
| ValidationConstraint.EMAIL_FORMAT); |
| } |
| |
| private String buildMessage(ValidationMessages messages, IFormComponent field) |
| { |
| return messages.formatValidationMessage( |
| getMessage(), |
| ValidationStrings.INVALID_EMAIL, |
| new Object[] |
| { field.getDisplayName() }); |
| } |
| |
| public void renderContribution(IMarkupWriter writer, IRequestCycle cycle, |
| FormComponentContributorContext context, IFormComponent field) |
| { |
| context.addInitializationScript(field, "dojo.require(\"dojo.validate.web\");"); |
| |
| JSONObject profile = context.getProfile(); |
| |
| if (!profile.has(ValidationConstants.CONSTRAINTS)) { |
| profile.put(ValidationConstants.CONSTRAINTS, new JSONObject()); |
| } |
| JSONObject cons = profile.getJSONObject(ValidationConstants.CONSTRAINTS); |
| |
| accumulateProperty(cons, field.getClientId(), |
| new JSONLiteral("[dojo.validate.isEmailAddress,false,true]")); |
| |
| accumulateProfileProperty(field, profile, |
| ValidationConstants.CONSTRAINTS, buildMessage(context, field)); |
| } |
| } |