io.github.bluemarlin.util.BluemarlineUtil.java Source code

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Here is the source code for io.github.bluemarlin.util.BluemarlineUtil.java

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/*
 * Copyright (C) 2015 thirdy
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package io.github.bluemarlin.util;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;

import com.google.common.base.Predicate;

import io.github.bluemarlin.util.ex.BlackmarketRuntimeException;

public class BluemarlineUtil {

    public static final Predicate<String> NON_BLANK_STRING = new Predicate<String>() {

        @Override
        public boolean apply(String input) {
            return StringUtils.isNotBlank(input);
        }
    };

    public static String loadFromClassPath(Class<?> clazz, String classPath) {
        System.out.println("loadFromClassPath: " + classPath);
        String page = "";
        try {
            InputStream is = clazz.getResourceAsStream(classPath);
            page = IOUtils.toString(is);
        } catch (IOException e) {
            System.out.println("Exception" + e.getMessage());
            // won't likely happen since file is in classpath
            e.printStackTrace();
        }
        return page;
    }

    public static String readFileToString(File file) {
        String raw = "";
        try {
            raw = FileUtils.readFileToString(file, "UTF-8");
        } catch (IOException e) {
            throw new BlackmarketRuntimeException(e);
        }
        return raw;
    }

    public static File loadOrCreateDirectory(File file) {
        if (!file.exists()) {
            file.mkdir();
        }
        return file;
    }

    public static File loadOrCreateFile(File file) {
        if (!file.exists()) {
            try {
                file.createNewFile();
            } catch (IOException e) {
                throw new BlackmarketRuntimeException(e);
            }
        }
        return file;
    }

    public static Date getDateInThePast(int days) {
        Date dateNow = new Date();
        Calendar cal = Calendar.getInstance();
        cal.setTime(dateNow);
        cal.add(Calendar.DATE, -days);
        Date d = cal.getTime();
        return d;
    }

    public static String lineSep() {
        return System.getProperty("line.separator");
    }

    public static String homeDirectory() {
        return System.getProperty("user.home");
    }

}