1 files changed, 57 insertions, 0 deletions
diff --git a/datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/commons/Scheme.java b/datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/commons/Scheme.java
new file mode 100644
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+++ b/datafile-app-server/src/main/java/org/onap/dcaegen2/collectors/datafile/commons/Scheme.java
@@ -0,0 +1,57 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 Nordix Foundation. All rights reserved.
+ * Copyright (C) 2020 Nokia. 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.onap.dcaegen2.collectors.datafile.commons;
+
+import org.onap.dcaegen2.collectors.datafile.exceptions.DatafileTaskException;
+
+/**
+ * Enum specifying the schemes that DFC support for downloading files.
+ *
+ * @author <a href="mailto:henrik.b.andersson@est.tech">Henrik Andersson</a>
+ *
+ */
+public enum Scheme {
+    FTPES, SFTP, HTTP;
+
+    public static final String DFC_DOES_NOT_SUPPORT_PROTOCOL_ERROR_MSG = "DFC does not support protocol ";
+    public static final String SUPPORTED_PROTOCOLS_ERROR_MESSAGE = ". Supported protocols are FTPeS, sFTP and HTTP";
+
+    /**
+     * Get a <code>Scheme</code> from a string.
+     *
+     * @param schemeString the string to convert to <code>Scheme</code>.
+     * @return The corresponding <code>Scheme</code>
+     * @throws DatafileTaskException if the value of the string doesn't match any defined scheme.
+     */
+    public static Scheme getSchemeFromString(String schemeString) throws DatafileTaskException {
+        Scheme result;
+        if ("FTPES".equalsIgnoreCase(schemeString)) {
+            result = Scheme.FTPES;
+        } else if ("SFTP".equalsIgnoreCase(schemeString)) {
+            result = Scheme.SFTP;
+        } else if ("HTTP".equalsIgnoreCase(schemeString)) {
+            result = Scheme.HTTP;
+        } else {
+            throw new DatafileTaskException(
+                DFC_DOES_NOT_SUPPORT_PROTOCOL_ERROR_MSG + schemeString + SUPPORTED_PROTOCOLS_ERROR_MESSAGE);
+        }
+        return result;
+    }
+}