package org.apache.maven.shared.io.location;

 /*

  * 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 java.util.ArrayList;

 import java.util.Iterator;

 import java.util.List;

 import org.apache.maven.shared.io.logging.DefaultMessageHolder;

 import org.apache.maven.shared.io.logging.MessageHolder;

 public final class Locator

 {

     private List strategies;

     private final MessageHolder messageHolder;

     public Locator( List strategies, MessageHolder messageHolder )

     {

         this.messageHolder = messageHolder;

         this.strategies = new ArrayList( strategies );

     }

     public Locator()

     {

         this.messageHolder = new DefaultMessageHolder();

         this.strategies = new ArrayList();

     }

     public MessageHolder getMessageHolder()

     {

         return messageHolder;

     }

     public void addStrategy( LocatorStrategy strategy )

     {

         this.strategies.add( strategy );

     }

     public void removeStrategy( LocatorStrategy strategy )

     {

         this.strategies.remove( strategy );

     }

     public void setStrategies( List strategies )

     {

         this.strategies.clear();

         this.strategies.addAll( strategies );

     }

     public List getStrategies()

     {

         return strategies;

     }

     public Location resolve( String locationSpecification )

     {

         Location location = null;

         for ( Iterator it = strategies.iterator(); location == null && it.hasNext(); )

         {

             LocatorStrategy strategy = (LocatorStrategy) it.next();

             location = strategy.resolve( locationSpecification, messageHolder );

         }

         return location;

     }

 }