001    /**
002     * Copyright 2008-2012 The Kuali Foundation
003     *
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.opensource.org/licenses/ecl2.php
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.codehaus.mojo.wagon;
017    
018    /*
019     * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
020     * agreements. See the NOTICE file distributed with this work for additional information regarding
021     * copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the
022     * "License"); you may not use this file except in compliance with the License. You may obtain a
023     * copy of the License at
024     * 
025     * http://www.apache.org/licenses/LICENSE-2.0
026     * 
027     * Unless required by applicable law or agreed to in writing, software distributed under the License
028     * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
029     * or implied. See the License for the specific language governing permissions and limitations under
030     * the License.
031     */
032    
033    import java.io.IOException;
034    
035    import org.apache.maven.wagon.Wagon;
036    import org.apache.maven.wagon.WagonException;
037    import org.codehaus.mojo.wagon.shared.WagonDownload;
038    
039    /**
040     * Check for the existing of remote resource.
041     * 
042     * @goal exist
043     * @requiresProject true
044     */
045    public class ExistMojo
046        extends AbstractSingleWagonMojo
047    {
048        /**
049         * relative path to a remote resource
050         * @parameter expression="${wagon.resource}" default-value=""
051         */
052        private String resource = "";
053        
054        /**
055         * @component
056         */
057        protected WagonDownload wagonDownload;
058    
059        
060        protected void execute( Wagon wagon )
061            throws WagonException, IOException
062        {
063            if ( this.wagonDownload.exists( wagon, resource ) )
064            {
065                this.getLog().info( resource + " exists. " );
066            }
067            else
068            {
069                this.getLog().info( resource + " does not exists. " );
070            }
071        }
072    
073    }