refactor utils into a separate module

1 files changed, 0 insertions, 176 deletions

diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/Random.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/Random.java
deleted file mode 100644
index e236b3a9..00000000
--- a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/Random.java
+++ /dev/null
@@ -1,176 +0,0 @@
-/*******************************************************************************
- * Copyright 2017 Graz University of Technology
- * EAAF-Core Components has been developed in a cooperation between EGIZ,  
- * A-SIT Plus, A-SIT, and Graz University of Technology.
- *
- * Licensed under the EUPL, Version 1.2 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * https://joinup.ec.europa.eu/news/understanding-eupl-v12
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- *  
- * This product combines work with different licenses. See the "NOTICE" text
- * file for details on the various modules and licenses.
- * The "NOTICE" text file is part of the distribution. Any derivative works
- * that you distribute must include a readable copy of the "NOTICE" text file.
- *******************************************************************************/
-
-package at.gv.egiz.eaaf.core.impl.utils;
-
-
-import java.nio.ByteBuffer;
-import java.security.NoSuchAlgorithmException;
-import java.security.SecureRandom;
-import java.text.DateFormat;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-
-import org.apache.commons.codec.binary.Hex;
-import org.apache.commons.lang3.ArrayUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import at.gv.egiz.eaaf.core.impl.idp.process.support.SecureRandomHolder;
-
-
-/**
- * Random number generator used to generate ID's
- * @author Paul Ivancsics
- * @version $Id$
- */
-public class Random {
-	private static final Logger log = LoggerFactory.getLogger(Random.class);
-	
-	private final static char[] allowedPreFix = 
-		{'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',
-		 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
-	private static final DateFormat dateFormater = new SimpleDateFormat("yyyyddMM");
-	
-  /** random number generator used */
-	private static SecureRandom random;
-	//private static SeedGenerator seedgenerator;	
-		
-	static {
-		try {
-			random = SecureRandom.getInstance("SHA256PRNG-FIPS186");
-			
-		} catch (NoSuchAlgorithmException e) {
-			log.warn("Can NOT initialize SecureRandom with: 'SHA256PRNG-FIPS186'. Use 'StrongSecureRandom' as backup");
-			random = SecureRandomHolder.getInstance();
-			
-		}
-		
-		
-		//random = iaik.security.random.SHA256FIPS186Random.getDefault();		
-	}
-	
-	/**
-	 * Generate a unique process reference-value [160bit], which always starts with a letter
-	 * <br>
-	 * This unique ID consists of single letter, a 64bit date String[yyyyddMM],
-	 *  and a 88bit random value.  
-	 * 
-	 * @return 160bit ID, which is hex encoded
-	 */
-	public static String nextProcessReferenceValue() {		
-		//pre-process all three parts of a unique reference value
-		String now = dateFormater.format(new Date()); //8 bytes = 64bit
-		byte[] randValue = nextByteRandom(11);
-		char preFix = allowedPreFix[Math.abs(random.nextInt() % allowedPreFix.length)];
-	 
-		//generate ID
-		String returnValue = preFix + new String(Hex.encodeHex(ArrayUtils.addAll(now.getBytes(), randValue))); // 20 bytes = 160 bits
-		if (returnValue.length() > 40)
-			return returnValue.substring(0, 40);
-		else
-			return returnValue;
-			
-	}
-	
-	
-	
-	/**
-	 * Creates a new random number [256bit], and encode it as hex value.
-	 * 
-	 * @return random hex encoded value [256bit]
-	 */
-	public static String nextHexRandom32() {
-		return new String(Hex.encodeHex(nextByteRandom(32))); // 32 bytes = 256 bits
-		
-	}
-	
-	/**
-	 * Creates a new random number [128bit], and encode it as hex value.
-	 * 
-	 * @return random hex encoded value [128bit]
-	 */
-	public static String nextHexRandom16() {
-		return new String(Hex.encodeHex(nextByteRandom(16))); // 16 bytes = 128 bits
-		
-	}
-	
-	  /**
-	   * Creates a new random number [64bit], to be used as an ID.
-	   * 
-	   * @return random long as a String [64bit]
-	   */
-	public static String nextLongRandom() {	  
-		return "".concat(String.valueOf(Math.abs(generateLongRandom(32)))); // 32 bytes = 256 bits	
-			
-	  }
-		
-  /**
-   * Creates a new random number, to be used as an ID.
-   * 
-   * @return random long as a String [64bit]
-   */
-	@Deprecated
-  public static String nextRandom() {	  
-	long l = ByteBuffer.wrap(nextByteRandom(32)).getLong(); // 32 bytes = 256 bits
-	return "" + Math.abs(l);
-		
-  }
-  
-/**
- * Creates a new random byte[]
- * 	
- * @param size Size of random number in byte
- * @return
- */
-public static byte[] nextBytes(int size) {
-	return  nextByteRandom(size);
-	
-}
-  
-  public static void seedRandom() {
-	  //TODO: implement reflection on IAIK Seed generator	  
-//      seedgenerator = iaik.security.random.AutoSeedGenerator.getDefault();  
-//	  if (seedgenerator.seedAvailable())
-//		  random.setSeed(seedgenerator.getSeed());
-	  
-	  random.setSeed(System.nanoTime());
-  }
-  
-	private static long generateLongRandom(int size) {
-		return ByteBuffer.wrap(nextByteRandom(size)).getLong(); 	
-	}
-  
-  /**
-   * Generate a new random number
-   * 
-   * @param size Size of random number in byte
-   * @return
-   */
-  private static synchronized byte[] nextByteRandom(int size) {
-	  byte[] b = new byte[size];
-	  random.nextBytes(b);			 
-	  return b;
-	  
-  }
-}