Java File Read via ByteBuffer readStringFromSocketChannel(SocketChannel sc)

Description

read String From Socket Channel

License

Apache License

Declaration

public static String readStringFromSocketChannel(SocketChannel sc) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.nio.*;
import java.nio.channels.*;
import java.nio.charset.*;

public class Main {
    private static Charset charset = Charset.forName("ISO-8859-2");
    private static final int BSIZE = 1024;

    public static String readStringFromSocketChannel(SocketChannel sc) {
        if (!sc.isOpen())
            return "";
        StringBuffer resultString = new StringBuffer();
        resultString.setLength(0);//from w  ww .j a  v a2  s  . c  o m
        ByteBuffer bbuf = ByteBuffer.allocate(BSIZE);
        bbuf.clear();
        try {
            int loopCounter = 0;
            readLoop: while (true) {
                // System.out.println("while true in readloop");
                int n = sc.read(bbuf);
                if (n > 0) {
                    bbuf.flip();
                    CharBuffer cbuf = charset.decode(bbuf);
                    while (cbuf.hasRemaining()) {
                        // System.out.println("while true in hasremaining");
                        char c = cbuf.get();
                        if (c == '\r' || c == '\n')
                            break readLoop;
                        resultString.append(c);
                    }
                } else {
                    loopCounter++;
                    if (loopCounter > 1000) {
                        break readLoop;
                    }
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        if (resultString.length() > 0) {
            // System.out.println("Message decoded from client: "+resultString.toString());
        }
        return resultString.toString();
    }
}

Related

1. readShortBuffer(DataInputStream input)
2. readShortByteArray(DataInput in)
3. readString(ByteArrayInputStream bin)
4. readString(ReadableByteChannel channel)
5. readStringFromFile(String path)
6. readStringInUTF8(DataInput in)
7. readToBuffer(final String filename)
8. readToByteArray(String fname)
9. readTwoByteInt(byte[] array, int start)