From 0586775ffc93906c48b205807a471cbaa0026406 Mon Sep 17 00:00:00 2001
From: Abhishek Malik <abhishek.malik@intel.com>
Date: Fri, 23 Oct 2015 11:35:11 -0700
Subject: [PATCH] Java: Adding example for Grove MQ9 Gas Sensor

Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>
---
 examples/java/GroveMQ9.java | 58 +++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 examples/java/GroveMQ9.java

diff --git a/examples/java/GroveMQ9.java b/examples/java/GroveMQ9.java
new file mode 100644
index 00000000..2c90b7d6
--- /dev/null
+++ b/examples/java/GroveMQ9.java
@@ -0,0 +1,58 @@
+import upm_gas.Gas;
+import upm_gas.MQ2;
+import upm_gas.MQ3;
+import upm_gas.MQ4;
+import upm_gas.MQ5;
+import upm_gas.MQ6;
+import upm_gas.MQ7;
+import upm_gas.MQ8;
+import upm_gas.MQ9;
+import upm_gas.TP401;
+import upm_gas.thresholdContext;
+
+public class GroveMQ9 {
+
+	static {
+		try {
+			System.loadLibrary("javaupm_gas");
+			System.loadLibrary("mraajava");
+		} catch (UnsatisfiedLinkError e) {
+			System.err.println(
+					"Native code library failed to load. See the chapter on Dynamic Linking Problems in the SWIG Java documentation for help.\n" +
+							e);
+			System.exit(1);
+		}
+	}
+
+	public static void main(String[] args) {
+		// TODO Auto-generated method stub
+		//! [Interesting]
+		// initialize the sensor on A0
+		MQ9 mq9 = new MQ9(0);
+
+		short[] buffer = new short[128];
+
+		thresholdContext context = new thresholdContext();
+
+		context.setAverageReading(0);
+		context.setRunningAverage(0);
+		context.setAveragedOver(2);
+
+		int len;
+		int thres;
+		while(true){
+			len = mq9.getSampledWindow((long)2, buffer);
+
+			if(len != 0){
+				thres = mq9.findThreshold(context, 30, buffer);
+				mq9.printGraph(context, (short)5);
+				if(thres != 0){
+					// do something
+					System.out.println("threshold is crossed");
+				}
+			}
+		}
+		//! [Interesting]
+	}
+
+}
\ No newline at end of file