1 files changed, 104 insertions, 0 deletions
diff --git a/common/openecomp-sdc-artifact-generator-lib/openecomp-sdc-artifact-generator-api/src/main/java/org/openecomp/sdc/generator/data/GeneratorUtil.java b/common/openecomp-sdc-artifact-generator-lib/openecomp-sdc-artifact-generator-api/src/main/java/org/openecomp/sdc/generator/data/GeneratorUtil.java
new file mode 100644
index 0000000000..080ae54944
--- /dev/null
+++ b/common/openecomp-sdc-artifact-generator-lib/openecomp-sdc-artifact-generator-api/src/main/java/org/openecomp/sdc/generator/data/GeneratorUtil.java
@@ -0,0 +1,104 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.generator.data;
+
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
+import org.apache.commons.codec.digest.DigestUtils;
+
+import java.io.IOException;
+import java.util.Base64;
+
+/**
+ * Utility method class for artifact generation.
+ */
+public class GeneratorUtil {
+  /**
+   * Translate tosca yaml into the provided model class.
+   *
+   * @param tosca    Tosca file content
+   * @param classOfT Model class for the translated object
+   * @param <T>      Template parameter for the return object
+   * @return Object model for the provided tosca yaml file
+   */
+  public static <T> T translateTosca(String tosca, Class<T> classOfT) throws IOException {
+    T tos;
+    //changing file
+    ObjectMapper mapper = new ObjectMapper(new YAMLFactory()); // jackson data-bind
+    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+    tos = mapper.readValue(tosca, classOfT);
+    return tos;
+  }
+
+  /**
+   * Decodes Base64 encode byte array input.
+   *
+   * @param input Base64 encoded byte array
+   * @return Decoded byte array
+   */
+  public static byte[] decoder(byte[] input) {
+    if (input != null) {
+      byte[] output = Base64.getDecoder().decode(input);
+      return output;
+    }
+    return null;
+  }
+
+  /**
+   * Encode a byte array input using Base64 encoding.
+   *
+   * @param input Input byte array to be encoded
+   * @return Base64 encoded byte array
+   */
+  public static byte[] encode(byte[] input) {
+    if (input != null) {
+      byte[] output = Base64.getEncoder().encode(input);
+      return output;
+    }
+    return null;
+  }
+
+  /**
+   * Calculate the checksum for a given input.
+   *
+   * @param input Byte array for which the checksum has to be calculated
+   * @return Calculated checksum of the input byte array
+   */
+  public static String checkSum(byte[] input) {
+    String checksum = null;
+    if (input != null) {
+      checksum = (DigestUtils.md5Hex(input)).toUpperCase();
+    }
+    return checksum;
+  }
+
+  /**
+   * Check if string is empty or null.
+   *
+   * @param input Input String
+   * @return true if string is empty/null and false otherwise
+   */
+  public static boolean isEmpty(String input) {
+    return input == null || input.length() == 0;
+  }
+
+}