1 files changed, 49 insertions, 0 deletions
diff --git a/certServicePostProcessor/src/main/java/org/onap/oom/certservice/postprocessor/configuration/path/DelimitedPathsSplitter.java b/certServicePostProcessor/src/main/java/org/onap/oom/certservice/postprocessor/configuration/path/DelimitedPathsSplitter.java
new file mode 100644
index 00000000..b2e71cb3
--- /dev/null
+++ b/certServicePostProcessor/src/main/java/org/onap/oom/certservice/postprocessor/configuration/path/DelimitedPathsSplitter.java
@@ -0,0 +1,49 @@
+/*============LICENSE_START=======================================================
+ * oom-truststore-merger
+ * ================================================================================
+ * 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.oom.certservice.postprocessor.configuration.path;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+import org.onap.oom.certservice.postprocessor.configuration.exception.CertificatesPathsValidationException;
+import org.onap.oom.certservice.postprocessor.configuration.model.EnvVariable;
+
+public class DelimitedPathsSplitter {
+
+    private static final String DELIMITER = ":";
+    private static final int NEGATIVE_SPLIT_LIMIT = -1;
+
+    public List<String> getValidatedPaths(EnvVariable envVariable, Optional<String> envValue)
+        throws CertificatesPathsValidationException {
+        return envValue.filter(this::hasValue)
+            .map(this::splitToList)
+            .filter(envVariable.getValidationFunction())
+            .orElseThrow(() -> new CertificatesPathsValidationException(
+                envVariable + " environment variable does not contain valid paths"));
+    }
+
+    private boolean hasValue(String envValue) {
+        return !envValue.isEmpty();
+    }
+
+    private List<String> splitToList(String stringToSplit) {
+        return Arrays.asList(stringToSplit.split(DELIMITER, NEGATIVE_SPLIT_LIMIT));
+    }
+}