ch.sbb.releasetrain.state.StateFileReader Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements;
 * and to You under the Apache License, Version 2.0.
 */
package ch.sbb.releasetrain.state;

import java.io.File;
import java.io.IOException;

import lombok.extern.slf4j.Slf4j;

import org.apache.commons.io.FileUtils;

import ch.sbb.releasetrain.state.model.ReleaseState;

/**
 * @author u206123 (Florian Seidl)
 * @since 0.0.6, 2016.
 */
@Slf4j
public class StateFileReader extends AbstractStateFileAccess {

    public StateFileReader(File dir) {
        super(dir);
    }

    public ReleaseState read(String releaseIdentifier) {
        try {
            File file = file(releaseIdentifier);

            if (!file.exists()) {
                log.debug("File %s not existing", file);
                return null;
            }

            return converter.convertEntry(FileUtils.readFileToString(file));
        } catch (IOException e) {
            throw new RuntimeException(String.format("Error reading state from file %s", file(releaseIdentifier)), e);
        }
    }
}