/*

  * #%L

  * MongoClientConfigurationBeanInfo.java - mongodb-async-driver - Allanbank Consulting, Inc.

  * %%

  * Copyright (C) 2011 - 2014 Allanbank Consulting, 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.

  * #L%

  */

 package com.allanbank.mongodb;

 import java.beans.BeanInfo;

 import java.beans.IntrospectionException;

 import java.beans.Introspector;

 import java.beans.PropertyDescriptor;

 import java.beans.PropertyEditorSupport;

 import java.beans.SimpleBeanInfo;

 import java.util.Collections;

 import com.allanbank.mongodb.util.log.Log;

 import com.allanbank.mongodb.util.log.LogFactory;

 /**

  * MongoClientConfigurationBeanInfo provides specialization for the properties

  * of the {@link MongoClientConfiguration}.

  * 

  * @api.yes This class is part of the driver's API. Public and protected members

  *          will be deprecated for at least 1 non-bugfix release (version

  *          numbers are <major>.<minor>.<bugfix>) before being

  *          removed or modified.

  * @copyright 2014, Allanbank Consulting, Inc., All Rights Reserved

  */

 public class MongoClientConfigurationBeanInfo extends SimpleBeanInfo {

     /**

      * Creates a new MongoClientConfigurationBeanInfo.

      */

     public MongoClientConfigurationBeanInfo() {

         super();

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to return <code>null</code> to trigger normal bean

      * introspection.

      * </p>

      */

     @Override

     public PropertyDescriptor[] getPropertyDescriptors() {

         try {

             final BeanInfo beanInfo = Introspector.getBeanInfo(

                     MongoClientConfiguration.class,

                     Introspector.IGNORE_IMMEDIATE_BEANINFO);

             final PropertyDescriptor[] descriptors = beanInfo

                     .getPropertyDescriptors();

             for (final PropertyDescriptor descriptor : descriptors) {

                 if ("credentials".equalsIgnoreCase(descriptor.getName())) {

                     descriptor

                             .setPropertyEditorClass(CredentialListEditor.class);

                 }

             }

             return descriptors;

         }

         catch (final IntrospectionException e) {

             // Just use the defaults.

             return super.getPropertyDescriptors();

         }

     }

     /**

      * CredentialListEditor provides the ability to parse the list of

      * credentials from a MongoDB URI. This will always be a singleton list.

      * 

      * @api.no This class is <b>NOT</b> part of the drivers API. This class may

      *         be mutated in incompatible ways between any two releases of the

      *         driver.

      * @copyright 2014, Allanbank Consulting, Inc., All Rights Reserved

      */

     protected static class CredentialListEditor extends PropertyEditorSupport {

         /** The logger for the {@link CredentialListEditor}. */

         protected static final Log LOG = LogFactory

                 .getLog(CredentialListEditor.class);

         /**

          * Creates a new CredentialEditor.

          */

         public CredentialListEditor() {

             super();

         }

         /**

          * {@inheritDoc}

          * <p>

          * Overridden to parse a string to a {@link Credential}.

          * </p>

          * 

          * @throws IllegalArgumentException

          *             If the string cannot be parsed into a {@link Credential}.

          */

         @Override

         public void setAsText(final String credentialString)

                 throws IllegalArgumentException {

             final CredentialEditor realEditor = new CredentialEditor();

             realEditor.setAsText(credentialString);

             final Object value = realEditor.getValue();

             if (value != null) {

                 setValue(Collections.singletonList(value));

             }

             else {

                 setValue(Collections.EMPTY_LIST);

             }

         }

     }

 }