Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2015 Yan Zhenjie
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.ByteArrayOutputStream;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.io.Writer;

public class Main {
    public static byte[] toByteArray(CharSequence input) {
        if (input == null)
            return new byte[0];
        return input.toString().getBytes();
    }

    public static byte[] toByteArray(CharSequence input, String encoding) throws UnsupportedEncodingException {
        if (input == null)
            return new byte[0];
        else
            return input.toString().getBytes(encoding);
    }

    public static byte[] toByteArray(InputStream input) throws IOException {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        write(input, output);
        output.close();
        return output.toByteArray();
    }

    public static byte[] toByteArray(InputStream input, int size) throws IOException {
        if (size < 0)
            throw new IllegalArgumentException("Size must be equal or greater than zero: " + size);

        if (size == 0)
            return new byte[0];

        byte[] data = new byte[size];
        int offset = 0;
        int byteCount;
        while ((offset < size) && (byteCount = input.read(data, offset, size - offset)) != -1)
            offset += byteCount;

        if (offset != size)
            throw new IOException("Unexpected byte count size. current: " + offset + ", excepted: " + size);
        return data;
    }

    public static byte[] toByteArray(Reader input) throws IOException {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        write(input, output);
        output.close();
        return output.toByteArray();
    }

    public static byte[] toByteArray(Reader input, String encoding) throws IOException {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        write(input, output, encoding);
        output.close();
        return output.toByteArray();
    }

    public static String toString(InputStream input) throws IOException {
        return new String(toByteArray(input));
    }

    public static String toString(InputStream input, String encoding) throws IOException {
        return new String(toByteArray(input), encoding);
    }

    public static String toString(Reader input) throws IOException {
        return new String(toByteArray(input));
    }

    public static String toString(Reader input, String encoding) throws IOException {
        return new String(toByteArray(input), encoding);
    }

    public static String toString(byte[] byteArray) {
        return new String(byteArray);
    }

    public static String toString(byte[] byteArray, String encoding) {
        try {
            return new String(byteArray, encoding);
        } catch (UnsupportedEncodingException e) {
            return new String(byteArray);
        }
    }

    public static void write(byte[] data, OutputStream output) throws IOException {
        if (data != null)
            output.write(data);
    }

    public static void write(byte[] data, Writer output) throws IOException {
        if (data != null)
            output.write(new String(data));
    }

    public static void write(byte[] data, Writer output, String encoding) throws IOException {
        if (data != null)
            output.write(new String(data, encoding));
    }

    public static void write(char[] data, Writer output) throws IOException {
        if (data != null)
            output.write(data);
    }

    public static void write(char[] data, OutputStream output) throws IOException {
        if (data != null)
            output.write(new String(data).getBytes());
    }

    public static void write(char[] data, OutputStream output, String encoding) throws IOException {
        if (data != null)
            output.write(new String(data).getBytes(encoding));
    }

    public static void write(CharSequence data, Writer output) throws IOException {
        if (data != null)
            output.write(data.toString());
    }

    public static void write(CharSequence data, OutputStream output) throws IOException {
        if (data != null)
            output.write(data.toString().getBytes());
    }

    public static void write(CharSequence data, OutputStream output, String encoding) throws IOException {
        if (data != null)
            output.write(data.toString().getBytes(encoding));
    }

    public static void write(InputStream inputStream, OutputStream outputStream) throws IOException {
        int len;
        byte[] buffer = new byte[4096];
        while ((len = inputStream.read(buffer)) != -1)
            outputStream.write(buffer, 0, len);
    }

    public static void write(Reader input, OutputStream output) throws IOException {
        Writer out = new OutputStreamWriter(output);
        write(input, out);
        out.flush();
    }

    public static void write(InputStream input, Writer output) throws IOException {
        Reader in = new InputStreamReader(input);
        write(in, output);
    }

    public static void write(Reader input, OutputStream output, String encoding) throws IOException {
        Writer out = new OutputStreamWriter(output, encoding);
        write(input, out);
        out.flush();
    }

    public static void write(InputStream input, OutputStream output, String encoding) throws IOException {
        Reader in = new InputStreamReader(input, encoding);
        write(in, output);
    }

    public static void write(InputStream input, Writer output, String encoding) throws IOException {
        Reader in = new InputStreamReader(input, encoding);
        write(in, output);
    }

    public static void write(Reader input, Writer output) throws IOException {
        int len;
        char[] buffer = new char[4096];
        while (-1 != (len = input.read(buffer)))
            output.write(buffer, 0, len);
    }
}