1 files changed, 67 insertions, 0 deletions
diff --git a/cps-ncmp-rest-stub/cps-ncmp-rest-stub-service/src/main/java/org/onap/cps/ncmp/rest/stub/providers/ResourceProviderImpl.java b/cps-ncmp-rest-stub/cps-ncmp-rest-stub-service/src/main/java/org/onap/cps/ncmp/rest/stub/providers/ResourceProviderImpl.java
new file mode 100644
index 000000000..c0779eb27
--- /dev/null
+++ b/cps-ncmp-rest-stub/cps-ncmp-rest-stub-service/src/main/java/org/onap/cps/ncmp/rest/stub/providers/ResourceProviderImpl.java
@@ -0,0 +1,67 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2023 Nordix Foundation.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.ncmp.rest.stub.providers;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Optional;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.stereotype.Service;
+
+@Slf4j
+@Service
+public class ResourceProviderImpl implements ResourceProvider {
+
+    private String pathToResponseFiles;
+
+    @Autowired
+    public ResourceProviderImpl(@Value("${stub.path}") final String pathToResponseFiles) {
+        this.pathToResponseFiles = pathToResponseFiles;
+    }
+
+    @Override
+    public Optional<InputStream> getResourceInputStream(final String filename) throws IOException {
+        final Path path = Paths.get(pathToResponseFiles).resolve(filename);
+
+        if (Files.exists(path)) {
+            log.info("Found resource file on file system using path: {}", path);
+            return Optional.of(Files.newInputStream(path));
+        }
+
+        log.warn("Couldn't find file on file system '{}', will search it in classpath", path);
+
+        final ClassPathResource resource = new ClassPathResource(path.toString());
+        if (resource.exists()) {
+            log.info("Found resource in classpath using path: {}", path);
+            return Optional.of(resource.getInputStream());
+        }
+
+        log.error("{} file not found on classpath or on file system", path);
+        return Optional.empty();
+    }
+
+}