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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.subscription;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.List;
/**
* Source specifying config from one local file
*
* @author Vegard Havdal
* @author jonmv
*/
public class FileSource implements ConfigSource {
private final File file;
public FileSource(File file) {
this.file = file;
validateFile();
}
public long getLastModified() {
return file.lastModified();
}
public List<String> getContent() throws IOException {
return Files.readAllLines(file.toPath());
}
public void validateFile() {
if ( ! file.isFile()) throw new IllegalArgumentException("Not a file: " + file);
}
}
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