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Private implementation of the Apache MyFaces Trinidad project

There is a newer version: 2.2.1

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.myfaces.trinidadinternal.config;

import java.util.HashMap;
import java.util.Map;

import javax.faces.context.ExternalContext;

import org.apache.myfaces.trinidad.config.PropertyValueProvider;
import org.apache.myfaces.trinidad.logging.TrinidadLogger;

/**
 * Provider of default configuration property values.  These values are what are returned
 * when a value has not been specified by any other value provider.
 */
final class DefaultValueProvider
  extends PropertyValueProvider
{
  public DefaultValueProvider()
  {
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public String getValue(ExternalContext extCtx, String name)
  {
    if (name == null)
    {
      throw new NullPointerException(_LOG.getMessage("NULL_CONFIG_PROPERTY_NAME"));
    }
    String result = DEFAULT_VALUES.get(name);
    return result;
  }

  //  Map of default config property name/value pairs.
  private static final Map DEFAULT_VALUES = new HashMap();

  static private final TrinidadLogger _LOG = TrinidadLogger.createTrinidadLogger(DefaultValueProvider.class);
}