package org.apache.maven.wagon.shared.http;
   
   /*
    * 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.
   */
  
  import org.apache.commons.httpclient.Header;
  import org.apache.commons.httpclient.params.HttpMethodParams;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.Properties;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  public class HttpMethodConfiguration
  {
      
      public static final int DEFAULT_CONNECTION_TIMEOUT = 60000;
  
      private static final String COERCE_PATTERN = "%(\\w+),(.+)";
      
      private Boolean useDefaultHeaders;
      
      private Properties headers = new Properties();
      
      private Properties params = new Properties();
      
      private int connectionTimeout = DEFAULT_CONNECTION_TIMEOUT;
  
      public boolean isUseDefaultHeaders()
      {
          return useDefaultHeaders == null ? true : useDefaultHeaders.booleanValue();
      }
  
      public HttpMethodConfiguration setUseDefaultHeaders( boolean useDefaultHeaders )
      {
          this.useDefaultHeaders = Boolean.valueOf( useDefaultHeaders );
          return this;
      }
      
      public Boolean getUseDefaultHeaders()
      {
          return useDefaultHeaders;
      }
      
      public HttpMethodConfiguration addHeader( String header, String value )
      {
          headers.setProperty( header, value );
          return this;
      }
  
      public Properties getHeaders()
      {
          return headers;
      }
  
      public HttpMethodConfiguration setHeaders( Properties headers )
      {
          this.headers = headers;
          return this;
      }
      
      public HttpMethodConfiguration addParam( String param, String value )
      {
          params.setProperty( param, value );
          return this;
      }
  
      public Properties getParams()
      {
          return params;
      }
  
      public HttpMethodConfiguration setParams( Properties params )
      {
          this.params = params;
          return this;
      }
  
      public int getConnectionTimeout()
     {
         return connectionTimeout;
     }
 
     public HttpMethodConfiguration setConnectionTimeout( int connectionTimeout )
     {
         this.connectionTimeout = connectionTimeout;
         return this;
     }
 
     public HttpMethodParams asMethodParams( HttpMethodParams defaults )
     {
         if ( !hasParams() )
         {
             return null;
         }
         
         HttpMethodParams p = new HttpMethodParams();
         p.setDefaults( defaults );
         
         fillParams( p );
         
         return p;
     }
 
     private boolean hasParams()
     {
         if ( connectionTimeout < 1 && params == null )
         {
             return false;
         }
         
         return true;
     }
 
     private void fillParams( HttpMethodParams p )
     {
         if ( !hasParams() )
         {
             return;
         }
         
         if ( connectionTimeout > 0 )
         {
             p.setSoTimeout( connectionTimeout );
         }
         
         if ( params != null )
         {
             Pattern coercePattern = Pattern.compile( COERCE_PATTERN );
             
             for ( Iterator it = params.entrySet().iterator(); it.hasNext(); )
             {
                 Map.Entry entry = (Map.Entry) it.next();
                 
                 String key = (String) entry.getKey();
                 String value = (String) entry.getValue();
                 
                 Matcher matcher = coercePattern.matcher( value );
                 if ( matcher.matches() )
                 {
                     char type = matcher.group( 1 ).charAt( 0 );
                     value = matcher.group( 2 );
                     
                     switch( type )
                     {
                         case 'i':
                         {
                             p.setIntParameter( key, Integer.parseInt( value ) );
                             break;
                         }
                         case 'd':
                         {
                             p.setDoubleParameter( key, Double.parseDouble( value ) );
                             break;
                         }
                         case 'l':
                         {
                             p.setLongParameter( key, Long.parseLong( value ) );
                             break;
                         }
                         case 'b':
                         {
                             p.setBooleanParameter( key, Boolean.valueOf( value ).booleanValue() );
                             break;
                         }
                         case 'c':
                         {
                             String[] entries = value.split( "," );
                             List collection = new ArrayList();
                             for ( int i = 0; i < entries.length; i++ )
                             {
                                 collection.add( entries[i].trim() );
                             }
                             
                             p.setParameter( key, collection );
                             break;
                         }
                         case 'm':
                         {
                             String[] entries = value.split( "," );
                             
                             Map map = new LinkedHashMap();
                             for ( int i = 0; i < entries.length; i++ )
                             {
                                 int idx = entries[i].indexOf( "=>" );
                                 if ( idx < 1 )
                                 {
                                     break;
                                 }
                                 
                                 String mapKey = entries[i].substring( 0, idx );
                                 String mapVal = entries[i].substring( idx + 1, entries[i].length() );
                                 map.put( mapKey.trim(), mapVal.trim() );
                             }
                             
                             p.setParameter( key, map );
                             break;
                         }
                     }
                 }
                 else
                 {
                     p.setParameter( key, value );
                 }
             }
         }
     }
 
     public Header[] asRequestHeaders()
     {
         if ( headers == null )
         {
             return null;
         }
         
         Header[] result = new Header[headers.size()];
         
         int index = 0;
         for ( Iterator it = headers.entrySet().iterator(); it.hasNext(); )
         {
             Map.Entry entry = (Map.Entry) it.next();
             
             String key = (String) entry.getKey();
             String value = (String) entry.getValue();
             
             Header header = new Header( key, value );
             result[index++] = header;
         }
         
         return result;
     }
     
     private HttpMethodConfiguration copy()
     {
         HttpMethodConfiguration copy = new HttpMethodConfiguration();
         
         copy.setConnectionTimeout( getConnectionTimeout() );
         if ( getHeaders() != null )
         {
             copy.setHeaders( getHeaders() );
         }
         
         if ( getParams() != null )
         {
             copy.setParams( getParams() );
         }
 
         copy.setUseDefaultHeaders( isUseDefaultHeaders() );
         
         return copy;
     }
 
     public static HttpMethodConfiguration merge( HttpMethodConfiguration defaults, HttpMethodConfiguration base, HttpMethodConfiguration local )
     {
         HttpMethodConfiguration result = merge( defaults, base );
         return merge( result, local );
     }
     
     public static HttpMethodConfiguration merge( HttpMethodConfiguration base, HttpMethodConfiguration local )
     {
         if ( base == null && local == null )
         {
             return null;
         }
         else if ( base == null )
         {
             return local;
         }
         else if ( local == null )
         {
             return base;
         }
         else
         {
             HttpMethodConfiguration result = base.copy();
             
             if ( local.getConnectionTimeout() != DEFAULT_CONNECTION_TIMEOUT )
             {
                 result.setConnectionTimeout( local.getConnectionTimeout() );
             }
             
             if ( local.getHeaders() != null )
             {
                 result.getHeaders().putAll( local.getHeaders() );
             }
             
             if ( local.getParams() != null )
             {
                 result.getParams().putAll( local.getParams() );
             }
             
             if ( local.getUseDefaultHeaders() != null )
             {
                 result.setUseDefaultHeaders( local.isUseDefaultHeaders() );
             }
             
             return result;
         }
     }
     
 }