GSAMS Java

5/21/99

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Table of Contents

Networking Topics

A Short History of Java Networking

A Short History of Java Networking

Competing Networking Models:OSI vs. Internet Whose Kung Fu is Better?

Internet Architecture Model

Internet Architecture Model

Internet Architecture Model

Network Protocols in Java

Basic Terminology (cont’d)

IP Address Classes

IP Address Classes

IP Addresses: Names

The java.net.* Package

Address representations

Converting IP Numbers to Strings

Other InetAddress Services

Sockets . . . and Threads

Sockets: Simple Usage

Socket Options in Java

Socket Options in Java

TCP/UDP Connections Distinguished

A Day Time Client

Reading and Writing From Sockets

Analysis and An Idea

Blocking Network Calls

Simple Threads Example

Threaded Socket Clients

Threaded Client Sockets

Extracting the Stream from a URL

CORBA & RMI:Two Flavors of Alphabet Soup?

What’s the Difference?

A Contrived Experiment With RMI

Experiment With RMI (Cont’d)

Experiment With RMI (Cont’d)

Program: Matryoshka Doll Server

RMI Design Cycle

1. Common Data Type

2. Define The Interface

3. Implement the Interface

3. Implement Interface (cont’d)

4. Compile (javac & rmic)

6. From Moscow With Stubs

8. Start The Client

RMI Summary: Value

RMI Summary: Errors & GC

RMI Summary: LocateRegistry

java.rmi.Naming Class

Java Native Invocation

Native Methods--What?

Native Methods -- Why?

JNI Generation--Overview

Step 1: Organizing JNI vs. Java Functionality

Step 2: Generate Header File

Step 3: Implement Your JNI Method

4. Compile the Object

5. Load the Library

7. DEBUG (and repeat . . .)

Concluding Thoughts

Author: dagon

Email: dagon@cc.gatech.edu

Home Page: http://www.cc.gatech.edu/projects/gsams-java

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