package org.codehaus.mojo.wagon;
   
   /*
    * 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.maven.plugins.annotations.Component;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.wagon.Wagon;
  import org.apache.maven.wagon.WagonException;
  import org.codehaus.mojo.wagon.shared.WagonDownload;
  
  /**
   * Check for the existing of remote resource.
   */
  @Mojo( name = "exist" )
  public class ExistMojo
      extends AbstractSingleWagonMojo
  {
      /**
       * relative path to a remote resource.
       */
      @Parameter( property = "wagon.resource")
      private String resource = "";
  
      @Component
      protected WagonDownload wagonDownload;
  
      @Override
      protected void execute( Wagon wagon )
          throws WagonException
      {
          if ( this.wagonDownload.exists( wagon, resource ) )
          {
              this.getLog().info( resource + " exists. " );
          }
          else
          {
              this.getLog().info( resource + " does not exists. " );
          }
      }
  
  }