eu.aniketos.ncvm.impl.EncodeSupport.java Source code

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Here is the source code for eu.aniketos.ncvm.impl.EncodeSupport.java

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/**
 * Copyright 2014 Liverpool John Moores University <http://www.ljmu.ac.uk/cmp/>
 * Aniketos Project FP7-ICT-257930 <http://www.aniketos.eu>
 * David Llewellyn-Jones <D.Llewellyn-Jones@ljmu.ac.uk>
 * 
 * This library 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 3 of the License, or (at your option) any later version.
 * 
 * This library 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 library. If not, see <http://www.gnu.org/licenses/>.
 *
 */

package eu.aniketos.ncvm.impl;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

import org.osgi.framework.BundleContext;

//import org.apache.commons.codec.binary.Base64;

class EncodeSupport {
    static String decodeData(String data) {
        return data;
        //return base64StringToString(data);
    }

    static String encodeData(String data) {
        //Base64 encoder = new Base64();
        //return encoder.encodeToString(data.getBytes());
        return data;
    }

    //   private static String base64StringToString(String base64String) {
    //      byte[] bytes = Base64.decodeBase64(base64String);
    //      return new String(bytes);
    //
    //   }

    /**
     * This methods read a file into a string.
     * 
     * @param filePath
     *            Path of the text file that should be read.
     * @return File content as string.
     */
    static String readFileAsString(String filePath) throws java.io.IOException {
        int fileSize = (int) new File(filePath).length();
        byte[] buffer = new byte[fileSize];
        BufferedInputStream f = null;
        try {
            FileInputStream inputStream = new FileInputStream(filePath);
            f = new BufferedInputStream(inputStream);
            f.read(buffer);
        } finally {
            if (f != null)
                try {
                    f.close();
                } catch (IOException ignored) {
                }
        }
        return new String(buffer);
    }

    static Map<String, String> LoadKeyValueFile(String file) throws IOException {
        Map<String, String> keyValues = new HashMap<String, String>();
        keyValues.clear();

        BundleContext context = Activator.getContext();
        // Load data from the configuration file if there is one
        System.out.println("Reading key-value pairs from: " + file);
        URL configURL = context.getBundle().getEntry(file);
        if (configURL != null) {
            // Read the key value pairs
            BufferedReader input = new BufferedReader(new InputStreamReader(configURL.openStream()));
            try {
                String read = "";
                while (read != null) {
                    read = input.readLine();
                    // Skip comments and blank lines
                    if ((read != null) && (!read.isEmpty()) && (!read.startsWith("#"))) {
                        // Read in the key-value pair
                        int separator = read.indexOf('=');
                        if (separator >= 0) {
                            String key = read.substring(0, separator).trim().toLowerCase();
                            String value = read.substring(separator + 1).trim();
                            // Store the result in our map
                            keyValues.put(key, value);
                        }
                    }
                }
            } finally {
                input.close();
            }
        }

        return keyValues;
    }

}