1 files changed, 74 insertions, 0 deletions
diff --git a/src/main/java/org/onap/pnfsimulator/template/FsToDbTemplateSynchronizer.java b/src/main/java/org/onap/pnfsimulator/template/FsToDbTemplateSynchronizer.java
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+++ b/src/main/java/org/onap/pnfsimulator/template/FsToDbTemplateSynchronizer.java
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+/*-
+ * ============LICENSE_START=======================================================
+ * Simulator
+ * ================================================================================
+ * Copyright (C) 2019 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.pnfsimulator.template;
+
+import org.bson.json.JsonParseException;
+import org.onap.pnfsimulator.db.Storage;
+import org.onap.pnfsimulator.filesystem.WatcherEventProcessor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.stream.Stream;
+
+@Service
+public class FsToDbTemplateSynchronizer {
+
+    private static final String CANNOT_SYNC = "Cannot synchronize templates. Check whether the proper folder exists.";
+    private static final Logger LOGGER = LoggerFactory.getLogger(FsToDbTemplateSynchronizer.class);
+
+    private final String templatesDir;
+    private final Storage<Template> storage;
+
+    @Autowired
+    public FsToDbTemplateSynchronizer(@Value("${templates.dir}") String templatesDir,
+                                      Storage<Template> storage) {
+        this.templatesDir = templatesDir;
+        this.storage = storage;
+    }
+
+    public void synchronize() {
+        try {
+            processTemplatesFolder();
+        } catch (IOException e) {
+            LOGGER.error(CANNOT_SYNC, e);
+        }
+    }
+
+    private void processTemplatesFolder() throws IOException {
+        try (Stream<Path> walk = Files.walk(Paths.get(templatesDir))) {
+            walk.filter(Files::isRegularFile).forEach(path -> {
+                try {
+                    WatcherEventProcessor.MODIFIED.processEvent(path, storage);
+                } catch (IOException | JsonParseException e) {
+                    LOGGER
+                            .error("Cannot synchronize template: {}", path.getFileName(), e);
+                }
+            });
+        }
+    }
+}