com.mobius.software.mqtt.parser.test.StaticData.java Source code

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Here is the source code for com.mobius.software.mqtt.parser.test.StaticData.java

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package com.mobius.software.mqtt.parser.test;

/**
 * Mobius Software LTD
 * Copyright 2015-2016, Mobius Software LTD
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.nio.file.Files;
import java.nio.file.Paths;

import org.apache.commons.io.IOUtils;

public class StaticData {
    final protected static char[] hexArray = "0123456789ABCDEF".toCharArray();

    public static String bytesToHex(byte[] bytes) {
        char[] hexChars = new char[bytes.length * 2];
        for (int j = 0; j < bytes.length; j++) {
            int v = bytes[j] & 0xFF;
            hexChars[j * 2 + 1] = hexArray[v & 0x0F];
            hexChars[j * 2] = hexArray[v >>> 4];
        }

        if (hexChars[hexChars.length - 1] != 'F')
            return new String(hexChars);

        return new String(hexChars, 0, hexChars.length - 1);
    }

    public static byte[] loadBytesFromResource(String resource) throws IOException {
        InputStream is = StaticData.class.getClassLoader().getResourceAsStream(resource);
        byte[] result;
        result = IOUtils.toByteArray(is);
        // result = hexStringToByteArray(IOUtils.toString(is));
        is.close();
        return result;
    }

    public static String[] getResourcesList(String folder, boolean absolutePath) throws IOException {
        File currFile = new File(StaticData.class.getClassLoader().getResource(folder).getPath());
        File[] allFiles = currFile.listFiles();
        String[] result = new String[allFiles.length];
        for (int i = 0; i < allFiles.length; i++) {
            if (absolutePath)
                result[i] = allFiles[i].getAbsolutePath();
            else
                result[i] = allFiles[i].getName();
        }

        return result;
    }

    public static File[] getFilesList(String folder) throws IOException {
        File currFile = new File(StaticData.class.getClassLoader().getResource(folder).getPath());
        File[] allFiles = currFile.listFiles();

        return allFiles;
    }

    static String readFile(String path, String encoding) throws IOException {
        byte[] encoded = Files.readAllBytes(Paths.get(path));
        return new String(encoded, encoding);
    }

    public static byte[] hexStringToByteArray(String file) {
        String s;
        byte[] data = null;
        try {
            s = readFile(file, "UTF-8");
            data = new byte[s.length() / 2];
            for (int i = 0; i < data.length; i++) {
                data[i] = (byte) Integer.parseInt(s.substring(2 * i, 2 * i + 2), 16);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return data;
    }

    public static File getFile(String resource) {
        return new File(StaticData.class.getClassLoader().getResource(resource).getPath());
    }

    public static boolean isGetter(Method method) {
        if (!method.getName().startsWith("get"))
            return false;
        if (method.getParameterTypes().length != 0)
            return false;
        if (void.class.equals(method.getReturnType()))
            return false;
        return true;
    }

}