diff options
Diffstat (limited to 'src/main/java/org/openecomp/sdc/utils/GeneralUtils.java')
-rw-r--r-- | src/main/java/org/openecomp/sdc/utils/GeneralUtils.java | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/main/java/org/openecomp/sdc/utils/GeneralUtils.java b/src/main/java/org/openecomp/sdc/utils/GeneralUtils.java new file mode 100644 index 0000000..9d786d0 --- /dev/null +++ b/src/main/java/org/openecomp/sdc/utils/GeneralUtils.java @@ -0,0 +1,62 @@ +/*- + * ============LICENSE_START======================================================= + * sdc-distribution-client + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ + +package org.openecomp.sdc.utils; + +import java.util.regex.Pattern; + +import org.apache.commons.codec.binary.Base64; + +public class GeneralUtils { + + public static String calculateMD5 (String data){ + String calculatedMd5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(data); + // encode base-64 result + byte[] encodeBase64 = Base64.encodeBase64(calculatedMd5.getBytes()); + String encodeBase64Str = new String(encodeBase64); + return encodeBase64Str; + + } + + public static String calculateMD5(byte[] decodedPayload) { + String decodedMd5 = org.apache.commons.codec.digest.DigestUtils.md5Hex(decodedPayload); + byte[] encodeMd5 = Base64.encodeBase64(decodedMd5.getBytes()); + return new String(encodeMd5); + } + + public static boolean isBase64Encoded(String str){ + boolean isEncoded = false; + try + { + // If no exception is caught, then it is possibly a base64 encoded string + byte[] data = Base64.decodeBase64(str); + // checks if the string was properly padded to the + isEncoded= ((str.length() % 4 == 0) && (Pattern.matches("\\A[a-zA-Z0-9/+]+={1,2}\\z", str))); + + } + catch (Exception e) + { + // If exception is caught, then it is not a base64 encoded string + isEncoded= false; + } + return isEncoded; + } + +} |