/*
    * ====================================================================
    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.http.params;
  
  import java.util.Set;
  
  import org.apache.http.params.HttpParams;
  
  
  /**
   * Abstract base class for parameter collections.
   * Type specific setters and getters are mapped to the abstract,
   * generic getters and setters.
   *
   * @since 4.0
   */
  public abstract class AbstractHttpParams implements HttpParams, HttpParamsNames {
  
      /**
       * Instantiates parameters.
       */
      protected AbstractHttpParams() {
          super();
      }
  
      public long getLongParameter(final String name, long defaultValue) {
          Object param = getParameter(name);
          if (param == null) {
              return defaultValue;
          }
          return ((Long)param).longValue();
      }
  
      public HttpParams setLongParameter(final String name, long value) {
          setParameter(name, new Long(value));
          return this;
      }
  
      public int getIntParameter(final String name, int defaultValue) {
          Object param = getParameter(name);
          if (param == null) {
              return defaultValue;
          }
          return ((Integer)param).intValue();
      }
  
      public HttpParams setIntParameter(final String name, int value) {
          setParameter(name, new Integer(value));
          return this;
      }
  
      public double getDoubleParameter(final String name, double defaultValue) {
          Object param = getParameter(name);
          if (param == null) {
              return defaultValue;
          }
          return ((Double)param).doubleValue();
      }
  
      public HttpParams setDoubleParameter(final String name, double value) {
          setParameter(name, new Double(value));
          return this;
      }
  
      public boolean getBooleanParameter(final String name, boolean defaultValue) {
          Object param = getParameter(name);
          if (param == null) {
              return defaultValue;
          }
          return ((Boolean)param).booleanValue();
      }
  
      public HttpParams setBooleanParameter(final String name, boolean value) {
          setParameter(name, value ? Boolean.TRUE : Boolean.FALSE);
         return this;
     }
 
     public boolean isParameterTrue(final String name) {
         return getBooleanParameter(name, false);
     }
 
     public boolean isParameterFalse(final String name) {
         return !getBooleanParameter(name, false);
     }
 
     /**
      * {@inheritDoc}
      * <p/>
      * Dummy implementation - must be overridden by subclasses.
      *
      * @since 4.2
      * @throws UnsupportedOperationException - always
      */
     public Set<String> getNames(){
         throw new UnsupportedOperationException();
     }
 
 } // class AbstractHttpParams