Created an interface to compile and run sims

trick_source/java/src/test/java/trick/common/SimulationInterface.java

@@ -0,0 +1,70 @@
+package trick.common;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileWriter;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.util.Scanner;
+
+public class SimulationInterface {
+
+	public static boolean cleanSim(String simPath) {
+		File sim_dir = new File(simPath);
+		if (sim_dir.exists())  
+			return run_cmd(sim_dir, "make clean", true) != null;
+		else  
+			return false;
+	}
+
+	public static boolean compileSim(String simPath) {
+		File sim_dir = new File(simPath);
+		if (sim_dir.exists())  
+			return run_cmd(sim_dir, "trick-CP", true) != null;
+		else  
+			return false;
+	}
+
+	public static Process startSim(String simPath, String ... args) {
+		File sim_dir = new File(simPath);
+		if (sim_dir.exists()) {
+			String cmd = "./" + find_exe(sim_dir).getName();
+			for(String arg : args) cmd += " " + arg;
+
+			return run_cmd(sim_dir, cmd);
+		} else  
+			return null;
+	}
+
+	private static Process run_cmd(File dir, String cmd, boolean block) {
+		try {
+			Process p = Runtime.getRuntime().exec(cmd, null, dir);
+			while(p.isAlive() && block) {  continue;  }
+
+			return p;
+		} catch(IOException ioe) {
+			System.err.println(ioe.getMessage());
+
+			return null;
+		}
+	}
+
+	private static Process run_cmd(File dir, String cmd) { return run_cmd(dir, cmd, false); }
+
+	private static File find_exe(File dir) {
+		File[] exe = dir.listFiles(new FilenameFilter() {
+			public boolean accept(File d, String name) {
+				return name.startsWith("S_main") && name.endsWith("exe");
+			}
+		});
+
+		if (exe.length > 0) {
+			if (exe.length > 1)
+				System.out.printf("WARNING: Detected %d simulation executables. Selecting '%s'...\n",
+								  exe.length,  exe[0].getName());
+			return exe[0];
+		} 
+		
+		return null;
+	}
+}