Simplified java binding example

examples/bindings/java/ExampleApp.java

@@ -28,13 +28,13 @@
 
 import zerotier.*;
 
-public class MyClass {
+public class ExampleApp {
 	
     public native int loadsymbols();
     public native void startOneService();
     
 	static {
-        System.load("/Users/joseph/op/zt/libzt/build/darwin/libzt.so");
+        System.loadLibrary("zt");
     }
 
 	public static void main(String[] args) {

examples/bindings/java/Makefile

@@ -0,0 +1,18 @@
+OSTYPE=$(shell uname -s | tr '[A-Z]' '[a-z]')
+BUILD=build/$(OSTYPE)
+
+ifeq ($(OSTYPE),darwin)
+SHARED_LIB=libzt.dylib
+endif
+ifeq ($(OSTYPE),linux)
+SHARED_LIB=libzt.so
+endif
+
+example_java_app:
+	javac *.java
+
+copy_dynamic_lib:
+	cp ../../../$(BUILD)/$(SHARED_LIB) .
+
+clean:
+	-find . -type f \( -name '*.class' \) -delete	

examples/bindings/java/README.md

@@ -1,9 +1,14 @@
-Java Examples
-======
+## ZeroTier with Java via JNI
+***
 
-`make shared_jni_lib SDK_JNI=1 SDK_IPV4=1`
+To get this example project to work, do the following:
 
-Uses API described in [api/java/README.md]
- - Copy `src/ZeroTier.java` into `your_project/src/zerotier`
- - Copy `src/Address.java` into `your_project/src/zerotier`
- - Copy `libzt.jnilib` or `libzt.so` from `build/` into `your_project/lib`
+- From libzt main directory, build shared library: `make shared_jni_lib`
+- Copy the resultant dynamic library (`*.so` or `*.dylib`) from `build/` to this current directory
+- Change to this directory and `make example_java_app`
+- Run: `java -cp "." ExampleApp`
+
+
+Notes:
+
+Upon execution, it will load the libzt dynamic library via the `loadLibrary` method and begin generating an identity.

examples/bindings/java/ZeroTierHelloWorld/.classpath

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
-		<attributes>
-			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="/Users/joseph/op/zt/libzt"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="lib" path="/Users/joseph/op/zt/libzt/examples/java/ZeroTierHelloWorld">
-		<attributes>
-			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="."/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="output" path="bin"/>
-</classpath>

examples/bindings/java/ZeroTierHelloWorld/.project

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>ZeroTierHelloWorld</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>

examples/bindings/java/ZeroTierHelloWorld/.settings/org.eclipse.jdt.core.prefs

@@ -1,11 +0,0 @@
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.8
-org.eclipse.jdt.core.compiler.debug.lineNumber=generate
-org.eclipse.jdt.core.compiler.debug.localVariable=generate
-org.eclipse.jdt.core.compiler.debug.sourceFile=generate
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.8

examples/bindings/java/ZeroTierHelloWorld/README.md

@@ -1,2 +0,0 @@
-ZeroTierSDK Java API
-======

examples/bindings/java/zerotier/Address.java

@@ -24,6 +24,8 @@
  * of your own application.
  */
 
+package zerotier;
+
 import java.math.BigInteger;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;

examples/bindings/java/zerotier/ZeroTier.java

@@ -24,6 +24,10 @@
  * of your own application.
  */
 
+package zerotier;
+
+//import zerotier.*;
+
 import java.io.FileDescriptor;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;