| /* |
| * Copyright 2010 Google Inc. |
| * |
| * 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 com.google.gwt.validation.rebind; |
| |
| import com.google.gwt.core.ext.Generator; |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.core.ext.typeinfo.JClassType; |
| import com.google.gwt.core.ext.typeinfo.TypeOracle; |
| import com.google.gwt.validation.client.GwtValidation; |
| |
| /** |
| * <strong>EXPERIMENTAL</strong> and subject to change. Do not use this in |
| * production code. |
| * <p> |
| * Generates the generic {@link javax.validation.Validator}. The generic |
| * validator only handles the classes listed in the |
| * {@link com.google.gwt.validation.client.GwtValidation} annotation. See |
| * {@link com.google.gwt.validation.client.GwtValidation} for usage. |
| */ |
| public class ValidatorGenerator extends Generator { |
| |
| @Override |
| public String generate(TreeLogger logger, GeneratorContext context, |
| String typeName) throws UnableToCompleteException { |
| TypeOracle typeOracle = context.getTypeOracle(); |
| assert (typeOracle != null); |
| |
| JClassType validatorType = typeOracle.findType(typeName); |
| if (validatorType == null) { |
| logger.log(TreeLogger.ERROR, "Unable to find metadata for type '" |
| + typeName + "'", null); |
| throw new UnableToCompleteException(); |
| } |
| |
| GwtValidation gwtValidation = validatorType.findAnnotationInTypeHierarchy(GwtValidation.class); |
| |
| if (gwtValidation == null) { |
| logger.log(TreeLogger.ERROR, typeName + " must be anntotated with " |
| + GwtValidation.class.getCanonicalName(), null); |
| throw new UnableToCompleteException(); |
| } |
| |
| if (gwtValidation.value().length == 0) { |
| logger.log(TreeLogger.ERROR, |
| "The @" + GwtValidation.class.getSimpleName() + " of " + typeName |
| + "must specify at least one bean type to validate.", null); |
| throw new UnableToCompleteException(); |
| } |
| |
| TreeLogger validatorLogger = logger.branch(TreeLogger.DEBUG, |
| "Generating Validator for '" + validatorType.getQualifiedSourceName() |
| + "'", null); |
| AbstractCreator creator = new ValidatorCreator(validatorType, |
| gwtValidation, |
| validatorLogger, |
| context); |
| return creator.create(); |
| } |
| } |