Introduction

A simple wrapper for bit level I/O with In|OutputStream.

Details

You can read/write variable length of bits from/to InputStream and OutputStream.

Exampe

class Sample {
    public String id;       // identifier; US-ASCII
    public int grade;       // grade; 4-bit unsigned integer
    public String name;     // name; UTF-8 String
    public int age;         // age; 7-bit unsigned integer; maximum 127
    public boolean married; // married or not
    public Integer balance; // account balance; 29-bit unsigned integer. null if hidden
}


ByteArrayOutputStream baos = new ByteArrayOutputStream();
BitOutput bo= new BitOutput(baos);

bo.writeASCII(sample.id);                    // 1 + 31 + 7N
bo.writeUnsignedInt(4, sample.grade);        // 4
bo.writeSTRING(sample.name, "UTF-8");        // 1 + 31 + 8N
bo.writeUnsignedInt(7, sample.age);          // 7
bo.writeBoolean(sample.married);             // 1
bo.writeUnsignedINTEGER(29, sample.balance); // 1 + 29

output.align(1); // align to octet


ByteArrayInputStream bais = new ByteArrayOutputStream(baos.toByteArray());
BitInput bi = new BitInput(bais);

String id = bi.readASCII();
int grade = bi.readUnsignedInt(4);
String name = bi.readSTRING("UTF-8");
int age = bi.readUnsignedInt(7);
boolean married = bi.readBoolean();
Integer balance = bi.readUnsignedINTEGER(29);

bi.align(1); // align to octet

Values

Apidocs

• 1.0-alpha-11-SNAPSHOT
• 1.0-alpha-10