IOUtils.java

package com.materialdoc.utils;

import java.io.BufferedReader;
import java.io.Closeable;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.URL;

public final class IOUtils {

    public static void copy(InputStream is, File file) {
        try {
            FileOutputStream os = new FileOutputStream(file);
            copy(is, os);
        } catch (FileNotFoundException e) {
            L.e(e.toString());
        }
    }

    public static void copy(InputStream is, OutputStream os) {
        try {

            byte buf[] = new byte[1024];
            int len;
            while ((len = is.read(buf)) > 0) {
                os.write(buf, 0, len);
            }

        } catch (IOException e) {
            L.e(e.toString());
        } finally {
            close(is);
            close(os);
        }
    }

    public static void close(Closeable stream) {
        try {
            if (stream != null) {
                stream.close();
            }
        } catch (IOException e) {
            L.e(e.toString());
        }
    }

    public static InputStream getStream(String url) {

        InputStream is = null;
        try {
            is = new URL(url).openConnection().getInputStream();
        } catch (IOException e) {
            L.e(e.toString());
        }

        return is;
    }

    public static String toString(InputStream inputStream) {
        BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
        StringBuilder total = new StringBuilder();
        String line;
        try {
            while ((line = br.readLine()) != null) {
                total.append(line);
            }
        } catch (IOException e) {
            L.e(e.toString());
        }

        return total.toString();
    }
}