2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.controller.messagebus.app.impl;
11 import java.math.BigInteger;
12 import java.security.MessageDigest;
13 import java.security.NoSuchAlgorithmException;
14 import java.util.ArrayList;
15 import java.util.List;
16 import java.util.concurrent.Future;
17 import java.util.regex.Pattern;
19 import org.opendaylight.yangtools.yang.common.RpcResult;
20 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
21 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
23 import com.google.common.util.concurrent.Futures;
25 public final class Util {
26 private static final MessageDigest messageDigestTemplate = getDigestInstance();
28 private static MessageDigest getDigestInstance() {
30 return MessageDigest.getInstance("MD5");
31 } catch (final NoSuchAlgorithmException e) {
32 throw new RuntimeException("Unable to get MD5 instance");
36 static String md5String(final String inputString) {
39 final MessageDigest md = (MessageDigest)messageDigestTemplate.clone();
40 md.update(inputString.getBytes("UTF-8"), 0, inputString.length());
41 return new BigInteger(1, md.digest()).toString(16);
42 } catch (final Exception e) {
43 throw new RuntimeException("Unable to get MD5 instance");
47 public static <T> Future<RpcResult<T>> resultFor(final T output) {
48 final RpcResult<T> result = RpcResultBuilder.success(output).build();
49 return Futures.immediateFuture(result);
53 * Method filters qnames based on wildcard strings
56 * @param patterh matching pattern
57 * @return list of filtered qnames
59 public static List<SchemaPath> expandQname(final List<SchemaPath> list, final Pattern pattern) {
60 final List<SchemaPath> matchingQnames = new ArrayList<>();
62 for (final SchemaPath notification : list) {
63 final String namespace = notification.getLastComponent().getNamespace().toString();
64 if (pattern.matcher(namespace).matches()) {
65 matchingQnames.add(notification);
68 return matchingQnames;
72 * CREDIT to http://www.rgagnon.com/javadetails/java-0515.html
76 static String wildcardToRegex(final String wildcard){
77 final StringBuffer s = new StringBuffer(wildcard.length());
79 for (final char c : wildcard.toCharArray()) {
87 // escape special regexp-characters