BindingValidationTestProvider.java

/*
 * Copyright 2011 <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
 *
 * 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.ocpsoft.rewrite.servlet.validate;

import javax.servlet.ServletContext;

import org.ocpsoft.rewrite.bind.Evaluation;
import org.ocpsoft.rewrite.config.Configuration;
import org.ocpsoft.rewrite.config.ConfigurationBuilder;
import org.ocpsoft.rewrite.config.Direction;
import org.ocpsoft.rewrite.context.EvaluationContext;
import org.ocpsoft.rewrite.event.Rewrite;
import org.ocpsoft.rewrite.param.Validator;
import org.ocpsoft.rewrite.servlet.config.HttpConfigurationProvider;
import org.ocpsoft.rewrite.servlet.config.Path;
import org.ocpsoft.rewrite.servlet.config.SendStatus;

/**
 * @author <a href="mailto:lincolnbaxter@gmail.com">Lincoln Baxter, III</a>
 * 
 */
public class BindingValidationTestProvider extends HttpConfigurationProvider
{
   @Override
   public int priority()
   {
      return 0;
   }

   @SuppressWarnings("rawtypes")
   @Override
   public Configuration getConfiguration(final ServletContext context)
   {
      Configuration config = ConfigurationBuilder
               .begin()
               .addRule()
               .when(Direction.isInbound().and(Path.matches("/v/{param}")))
               .perform(SendStatus.code(205))
               .where("param").bindsTo(Evaluation.property("param")).validatedBy(new Validator() {
                  @Override
                  public boolean isValid(final Rewrite event, final EvaluationContext context,
                           final Object value)
                  {
                     return "valid".equals(value);
                  }
               })

               .addRule()
               .when(Direction.isInbound().and(Path.matches("/v/{param}")))
               .perform(SendStatus.code(206))
               .where("param").matches("[a-zA-Z]+");

      return config;
   }

}