com.antonjohansson.elasticsearchshell.utils.PropertiesUtils.java Source code

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Here is the source code for com.antonjohansson.elasticsearchshell.utils.PropertiesUtils.java

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/**
 * Copyright 2017 Anton Johansson
 *
 * 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.
 */
package com.antonjohansson.elasticsearchshell.utils;

import static org.apache.commons.io.IOUtils.closeQuietly;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;

/**
 * Provides utilities to work with properties files.
 */
public final class PropertiesUtils {
    // Prevent instantiation
    private PropertiesUtils() {
    }

    /**
     * Reads properties from the given file.
     */
    public static Properties read(File file) {
        InputStream input = null;
        try {
            input = new FileInputStream(file);
            Properties properties = new Properties();
            properties.load(input);
            return properties;
        } catch (Exception e) {
            throw new RuntimeException(e);
        } finally {
            closeQuietly(input);
        }
    }

    /**
     * Writes the given properties to the given file.
     */
    public static void write(Properties properties, File file) {
        OutputStream output = null;
        try {
            output = new FileOutputStream(file);
            properties.store(output, "");
        } catch (Exception e) {
            throw new RuntimeException(e);
        } finally {
            closeQuietly(output);
        }
    }
}