com.siniatech.siniautils.file.PathHelper.java Source code

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Here is the source code for com.siniatech.siniautils.file.PathHelper.java

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/*******************************************************************************
 * SiniaUtils
 * Copyright (c) 2011-2 Siniatech Ltd  
 * http://www.siniatech.com/products/siniautils
 *
 * All rights reserved. This project and the accompanying materials are made 
 * available under the terms of the MIT License which can be found in the root  
 * of the project, and at http://www.opensource.org/licenses/mit-license.php
 *
 ******************************************************************************/
package com.siniatech.siniautils.file;

import static java.nio.file.Files.*;
import static org.apache.commons.codec.digest.DigestUtils.*;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.nio.file.FileSystems;
import java.nio.file.Path;

public class PathHelper {

    static public Path createFileWithContents(String pathString, String contents) throws IOException {
        Path path = FileSystems.getDefault().getPath(pathString);
        if (exists(path)) {
            throw new IOException("File " + pathString + " already exists.");
        } else {
            createFile(path);
        }
        try (BufferedWriter out = newBufferedWriter(path, Charset.defaultCharset())) {
            out.write(contents);
            return path;
        }
    }

    static public String getFileContents(Path file) throws IOException {
        try (BufferedReader in = newBufferedReader(file, Charset.defaultCharset())) {
            StringBuffer sb = new StringBuffer();
            String line;
            while ((line = in.readLine()) != null) {
                sb.append(line);
            }
            return sb.toString();
        }
    }

    static public String sha(Path path) throws IOException {
        try (InputStream in = newInputStream(path)) {
            return sha256Hex(in);
        }
    }
}