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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);
}
});
}
}
}
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