/** * $Id: $ * $Date: $ * */ package org.xmlsh.aws.util; import java.net.InetAddress; import java.net.UnknownHostException; import com.amazonaws.services.s3.AmazonS3; import com.amazonaws.services.s3.model.ObjectMetadata; public class AWSUtil { public static String getChecksum(AmazonS3 s3 , S3Path path ) { try { ObjectMetadata exists = s3.getObjectMetadata( path.getBucket() , path.getKey() ); if( exists != null ) return exists.getETag(); } catch( Exception e ){ } return null ; } /* * Resolve a or x.x.x.x to IP address */ public static String resolveDNS( String dns ) throws UnknownHostException { InetAddress addr = InetAddress.getByName(dns); if( addr == null ) return null ; return addr.getHostAddress(); } public static String parseBoolean(Boolean b) { if( b == null ) return ""; else return b.toString(); } } // // //Copyright (C) 2008-2014 David A. Lee. // //The contents of this file are subject to the "Simplified BSD License" (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.opensource.org/licenses/bsd-license.php // //Software distributed under the License is distributed on an "AS IS" basis, //WITHOUT WARRANTY OF ANY KIND, either express or implied. //See the License for the specific language governing rights and limitations under the License. // //The Original Code is: all this file. // //The Initial Developer of the Original Code is David A. Lee // //Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved. // //Contributor(s): none. //