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Add WIP Java language bindings

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This commit is contained in:
Joseph Henry
2021-04-29 19:51:07 -07:00
parent 904e50e8e9
commit 782d221eb9
16 changed files with 3833 additions and 1074 deletions
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269
examples/java/Example.java
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@@ -1,161 +1,138 @@
//package com.zerotier.libzt.javasimpleexample;
import com.zerotier.libzt.ZeroTier;
import com.zerotier.libzt.ZeroTierEventListener;
import com.zerotier.sdk.*;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.math.BigInteger;
public class Example {
public class selftest {
public static void main(String[] args)
{
System.err.println(args.length);
if (args.length < 4 || args.length > 5) {
System.err.println("Invalid arguments");
System.err.println(" Usage: <server|client> <id_path> <network> <addr> <port>");
System.err.println(" example server ./ 0123456789abcdef 8080");
System.err.println(" example client ./ 0123456789abcdef 192.168.22.1 8080\n");
System.exit(1);
}
static void sleep(int ms) {
try {
Thread.sleep(ms);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
String storagePath = "";
String remoteAddr = "";
int port = 0;
String mode = args[0];
storagePath = args[1];
BigInteger networkId = new BigInteger(args[2], 16);
if (args.length == 4) {
port = Integer.parseInt(args[3]);
}
if (args.length == 5) {
remoteAddr = args[3];
port = Integer.parseInt(args[4]);
}
System.out.println("mode = " + mode);
System.out.println("networkId = " + Long.toHexString(networkId.longValue()));
System.out.println("storagePath = " + storagePath);
System.out.println("remoteAddr = " + remoteAddr);
System.out.println("port = " + port);
public static void main(String[] args) {
String keyPath="."; // Default to current directory
BigInteger networkId;
Integer servicePort=0;
if (args.length != 3) {
System.err.println(" Invalid arguments");
System.err.println(" Usage: example <path_to_write_keys> <nwid> <ztServicePort>");
System.exit(1);
}
keyPath = args[0];
networkId = new BigInteger(args[1], 16);
servicePort = Integer.parseInt(args[2]);
System.out.println("networkId = " + Long.toHexString(networkId.longValue()));
System.out.println("keyPath = " + keyPath);
System.out.println("servicePort = " + servicePort);
// ZeroTier setup
//
// BEGIN SETUP
//
ZeroTierNode node = new ZeroTierNode();
// Set up event listener and start service
MyZeroTierEventListener listener = new MyZeroTierEventListener();
ZeroTier.start(keyPath, (ZeroTierEventListener)listener, servicePort);
// Wait for EVENT_NODE_ONLINE
System.out.println("waiting for node to come online...");
while (listener.isOnline == false) { sleep(50); }
System.out.println("joining network");
ZeroTier.join(networkId.longValue());
// Wait for EVENT_NETWORK_READY_IP4/6
System.out.println("waiting for network config...");
while (listener.isNetworkReady == false) { sleep(50); }
System.out.println("joined");
node.initFromStorage(storagePath);
// node.initSetEventHandler(new MyZeroTierEventListener());
// node.initSetPort(9994);
node.start();
//
// END SETUP
//
System.out.println("Waiting for node to come online...");
while (! node.isOnline()) {
ZeroTierNative.zts_util_delay(50);
}
System.out.println("Node ID: " + Long.toHexString(node.getId()));
System.out.println("Joining network...");
node.join(networkId.longValue());
System.out.println("Waiting for network...");
while (! node.isNetworkTransportReady(networkId.longValue())) {
ZeroTierNative.zts_util_delay(50);
}
System.out.println("joined");
sleep(120000);
// Socket logic
/**
*
* Begin using socket API after this point:
*
* ZeroTier.ZeroTierSocket, ZeroTier.ZeroTierSocketFactory, etc
*
* (or)
*
* ZeroTier.socket(), ZeroTier.connect(), etc
*/
}
if (mode.equals("server")) {
System.out.println("Starting server...");
try {
ZeroTierSocket socket =
new ZeroTierSocket(ZeroTierNative.ZTS_AF_INET, ZeroTierNative.ZTS_SOCK_STREAM, 0);
socket.bind("0.0.0.0", port);
socket.listen(100);
ZeroTierSocket newConnection = socket.accept();
ZeroTierInputStream inputStream = newConnection.getInputStream();
DataInputStream dataInputStream = new DataInputStream(inputStream);
String message = dataInputStream.readUTF();
System.out.println("recv: " + message);
socket.close();
newConnection.close();
}
catch (Exception ex) {
System.out.println(ex);
}
}
if (mode.equals("client")) {
System.out.println("Starting client...");
try {
ZeroTierSocket socket =
new ZeroTierSocket(ZeroTierNative.ZTS_AF_INET, ZeroTierNative.ZTS_SOCK_STREAM, 0);
socket.connect(remoteAddr, port);
ZeroTierOutputStream outputStream = socket.getOutputStream();
DataOutputStream dataOutputStream = new DataOutputStream(outputStream);
dataOutputStream.writeUTF("Hello from java!");
socket.close();
}
catch (Exception ex) {
System.out.println(ex);
}
}
}
}
/**
* Example event handling
* (OPTIONAL) event handler
*/
class MyZeroTierEventListener implements ZeroTierEventListener {
public boolean isNetworkReady = false;
public boolean isOnline = false;
public void onZeroTierEvent(long id, int eventCode) {
if (eventCode == ZeroTier.EVENT_NODE_UP) {
System.out.println("EVENT_NODE_UP: nodeId=" + Long.toHexString(id));
}
if (eventCode == ZeroTier.EVENT_NODE_ONLINE) {
// The core service is running properly and can join networks now
System.out.println("EVENT_NODE_ONLINE: nodeId=" + Long.toHexString(id));
isOnline = true;
}
if (eventCode == ZeroTier.EVENT_NODE_OFFLINE) {
// Network does not seem to be reachable by any available strategy
System.out.println("EVENT_NODE_OFFLINE");
}
if (eventCode == ZeroTier.EVENT_NODE_DOWN) {
// Called when the node is shutting down
System.out.println("EVENT_NODE_DOWN");
}
if (eventCode == ZeroTier.EVENT_NODE_IDENTITY_COLLISION) {
// Another node with this identity already exists
System.out.println("EVENT_NODE_IDENTITY_COLLISION");
}
if (eventCode == ZeroTier.EVENT_NODE_UNRECOVERABLE_ERROR) {
// Try again
System.out.println("EVENT_NODE_UNRECOVERABLE_ERROR");
}
if (eventCode == ZeroTier.EVENT_NODE_NORMAL_TERMINATION) {
// Normal closure
System.out.println("EVENT_NODE_NORMAL_TERMINATION");
}
if (eventCode == ZeroTier.EVENT_NETWORK_READY_IP4) {
// We have at least one assigned address and we've received a network configuration
System.out.println("ZTS_EVENT_NETWORK_READY_IP4: nwid=" + Long.toHexString(id));
isNetworkReady = true;
}
if (eventCode == ZeroTier.EVENT_NETWORK_READY_IP6) {
// We have at least one assigned address and we've received a network configuration
System.out.println("ZTS_EVENT_NETWORK_READY_IP6: nwid=" + Long.toHexString(id));
//isNetworkReady = true;
}
if (eventCode == ZeroTier.EVENT_NETWORK_DOWN) {
// Someone called leave(), we have no assigned addresses, or otherwise cannot use this interface
System.out.println("EVENT_NETWORK_DOWN: nwid=" + Long.toHexString(id));
}
if (eventCode == ZeroTier.EVENT_NETWORK_REQ_CONFIG) {
// Waiting for network configuration
System.out.println("EVENT_NETWORK_REQ_CONFIG: nwid=" + Long.toHexString(id));
}
if (eventCode == ZeroTier.EVENT_NETWORK_OK) {
// Config received and this node is authorized for this network
System.out.println("EVENT_NETWORK_OK: nwid=" + Long.toHexString(id));
}
if (eventCode == ZeroTier.EVENT_NETWORK_ACCESS_DENIED) {
// You are not authorized to join this network
System.out.println("EVENT_NETWORK_ACCESS_DENIED: nwid=" + Long.toHexString(id));
}
if (eventCode == ZeroTier.EVENT_NETWORK_NOT_FOUND) {
// The virtual network does not exist
System.out.println("EVENT_NETWORK_NOT_FOUND: nwid=" + Long.toHexString(id));
}
if (eventCode == ZeroTier.EVENT_NETWORK_CLIENT_TOO_OLD) {
// The core version is too old
System.out.println("EVENT_NETWORK_CLIENT_TOO_OLD: nwid=" + Long.toHexString(id));
}
if (eventCode == ZeroTier.EVENT_PEER_DIRECT) {
System.out.println("EVENT_PEER_DIRECT: id=" + Long.toHexString(id));
/*
ZeroTierPeerDetails details = new ZeroTierPeerDetails();
ZeroTier.get_peer(id, details);
System.out.println("address="+Long.toHexString(details.address));
System.out.println("pathCount="+details.pathCount);
System.out.println("version="+details.versionMajor+"."+details.versionMinor+"."+details.versionRev);
System.out.println("latency="+details.latency); // Not relevant
System.out.println("role="+details.role); // Not relevent
// Print all known paths
for (int i=0; i<details.pathCount; i++) {
System.out.println("addr="+details.paths[i].toString());
}
*/
}
if (eventCode == ZeroTier.EVENT_PEER_RELAY) {
System.out.println("EVENT_PEER_RELAY: id=" + Long.toHexString(id));
}
}
class MyZeroTierEventListener implements ZeroTierEventListener {
public void onZeroTierEvent(long id, int event_code)
{
if (event_code == ZeroTierNative.ZTS_EVENT_NODE_UP) {
System.out.println("EVENT_NODE_UP");
}
if (event_code == ZeroTierNative.ZTS_EVENT_NODE_ONLINE) {
System.out.println("EVENT_NODE_ONLINE: " + Long.toHexString(id));
}
if (event_code == ZeroTierNative.ZTS_EVENT_NODE_OFFLINE) {
System.out.println("EVENT_NODE_OFFLINE");
}
if (event_code == ZeroTierNative.ZTS_EVENT_NODE_DOWN) {
System.out.println("EVENT_NODE_DOWN");
}
if (event_code == ZeroTierNative.ZTS_EVENT_NETWORK_READY_IP4) {
System.out.println("ZTS_EVENT_NETWORK_READY_IP4: " + Long.toHexString(id));
}
if (event_code == ZeroTierNative.ZTS_EVENT_NETWORK_READY_IP6) {
System.out.println("ZTS_EVENT_NETWORK_READY_IP6: " + Long.toHexString(id));
}
if (event_code == ZeroTierNative.ZTS_EVENT_NETWORK_DOWN) {
System.out.println("EVENT_NETWORK_DOWN: " + Long.toHexString(id));
}
if (event_code == ZeroTierNative.ZTS_EVENT_NETWORK_OK) {
System.out.println("EVENT_NETWORK_OK: " + Long.toHexString(id));
}
if (event_code == ZeroTierNative.ZTS_EVENT_NETWORK_ACCESS_DENIED) {
System.out.println("EVENT_NETWORK_ACCESS_DENIED: " + Long.toHexString(id));
}
if (event_code == ZeroTierNative.ZTS_EVENT_NETWORK_NOT_FOUND) {
System.out.println("EVENT_NETWORK_NOT_FOUND: " + Long.toHexString(id));
}
}
}
*/

6
examples/java/README.md
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@@ -1,9 +1,9 @@
# Java example
1). Build or download the `zt-1.3.3.jar`, copy it to this directory
1). Build or download the `libzt-1.3.3.jar`, copy it to this directory
2). Run `make`
3). `java -cp ".:zt-1.3.3.jar" Example id_path 0123456789abcdef 9997`
3). `java -cp ".:libzt-1.3.3.jar" Example id_path 0123456789abcdef 9997`
See [src/bindings/java](../../src/bindings/java) for wrapper implementation code.
See [src/bindings/java](../../src/bindings/java) for wrapper implementation code.