/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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 javax.faces.internal;

 import java.util.HashMap;

 import java.util.Map;

 import javax.faces.validator.Validator;

 import org.seasar.framework.util.ArrayUtil;

 /**

  * @author shot

  * @author higa

  */

 public class ValidatorResource {

     private static Map validatorPairs = new HashMap();

     private static ValidatorBuilder builder;

     protected ValidatorResource() {

     }

     public static synchronized Validator getValidator(final String expression) {

         if (builder == null) {

             return null;

         }

         ValidatorPair[] pairs = (ValidatorPair[]) validatorPairs

                 .get(expression);

         return builder.build(expression, pairs);

     }

     public static synchronized void addValidator(final String expression,

             final String validatorName) {

         addValidator(expression, validatorName, new HashMap());

     }

     public static synchronized void addValidator(final String expression,

             final String validatorName, final Map properties) {

         ValidatorPair pair = new ValidatorPair(validatorName, properties);

         ValidatorPair[] pairs = (ValidatorPair[]) validatorPairs

                 .get(expression);

         if (pairs == null) {

             pairs = new ValidatorPair[0];

         }

         validatorPairs.put(expression, ArrayUtil.add(pairs, pair));

     }

     public static synchronized void removeValidator(String expression) {

         validatorPairs.remove(expression);

         if (builder != null) {

             builder.clearValidator(expression);

         }

     }

     public static void removeAll() {

         validatorPairs.clear();

         if (builder != null) {

             builder.clearAll();

         }

     }

     public static void setValidatorBuilder(ValidatorBuilder vb) {

         builder = vb;

     }

     public static class ValidatorPair {

         public String validatorName;

         public Map properties;

         public ValidatorPair(final String validatorName, final Map properties) {

             this.validatorName = validatorName;

             this.properties = properties;

         }

     }

 }