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/*
* ============LICENSE_START=======================================================
* DCAEGEN2-SERVICES-SDK
* ================================================================================
* 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.services.sdk.services.external.schema.manager.service;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
/**
* A FileReader is used to load a file content.
*/
class FileReader {
private static final Logger logger = LoggerFactory.getLogger(FileReader.class);
private final String filename;
/**
* Constructor
* @param filePath path to file which will be read
*/
FileReader(String filePath) {
this.filename = filePath;
}
/**
* @return all file content
*/
String getContent() {
String fileContent = "";
try {
fileContent = getFileContent();
} catch (IOException e) {
logger.error("Error while reading file. Filename: {}", filename);
}
return fileContent;
}
/**
* @return true if file exists; otherwise false
*/
boolean doesFileExists() {
return new File(filename).exists();
}
private String getFileContent() throws IOException {
return new String(readBytes());
}
private byte[] readBytes() throws IOException {
return Files.readAllBytes(Paths.get(filename));
}
}
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