diff options
Diffstat (limited to 'mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/binding/IdFactory.java')
-rw-r--r-- | mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/binding/IdFactory.java | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/binding/IdFactory.java b/mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/binding/IdFactory.java deleted file mode 100644 index 60bf69a4..00000000 --- a/mocca-1.2.11/bkucommon/src/main/java/at/gv/egiz/bku/binding/IdFactory.java +++ /dev/null @@ -1,106 +0,0 @@ -/* -* Copyright 2008 Federal Chancellery Austria and -* Graz University of Technology -* -* Licensed 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. -*/ -package at.gv.egiz.bku.binding;
-
-import java.security.NoSuchAlgorithmException;
-import java.security.SecureRandom;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-/**
- * Creates or converts Ids for BindingProcessors.
- * @author wbauer
- *
- */
-public class IdFactory {
-
- public static int DEFAULT_NUMBER_OF_BITS = 168;
-
- private static Log log = LogFactory.getLog(IdFactory.class);
-
- private static IdFactory instance = new IdFactory();
-
- private SecureRandom random;
- private int numberOfBits = DEFAULT_NUMBER_OF_BITS;
-
- private IdFactory() {
- try {
- random = SecureRandom.getInstance("SHA1PRNG");
- } catch (NoSuchAlgorithmException e) {
- log.error("Cannot instantiate secure random" + e);
- }
- }
-
- public static IdFactory getInstance() {
- return instance;
- }
-
-
- /**
- * set the secure random number generator to create secure ids.
- *
- * @param random
- * must not be null
- */
- public void setSecureRandom(SecureRandom random) {
- if (random == null) {
- throw new NullPointerException("Cannot set secure random to null");
- }
- this.random = random;
- }
-
- /**
- * Don't use this method unless you know exactly what you do !
- * Be sure to use a sufficient large entropy
- * @param numberOfBits >=1 (although this small entropy does not make sense)
- */
- public void setNumberOfBits(int numberOfBits) {
- if (numberOfBits <1) {
- throw new IllegalArgumentException("Cannot set number of bits < 1");
- }
- this.numberOfBits = numberOfBits;
- }
-
- public int getNumberOfBits() {
- return numberOfBits;
- }
-
- /**
- * Creates a new Id object with the factory's secure RNG and the set number of
- * bits.
- *
- * @return
- */
- public Id createId() {
- return new IdImpl(numberOfBits, random);
- }
-
- /**
- * Creates an Id object for the provided String
- *
- * @param idString
- * may be null in this case the method call creates a new Id.
- * @return
- */
- public Id createId(String idString) {
- if (idString == null) {
- return createId();
- }
- return new IdImpl(idString);
- }
-}
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