New branch for vm-tests that use cts-tf framework.

Change-Id: I9927dc09027fc2298a1b1f7ee6c918ed1d36723a
diff --git a/tools/vm-tests-tf/src/util/build/DeviceUtil.java.template b/tools/vm-tests-tf/src/util/build/DeviceUtil.java.template
new file mode 100644
index 0000000..c64a138
--- /dev/null
+++ b/tools/vm-tests-tf/src/util/build/DeviceUtil.java.template
@@ -0,0 +1,72 @@
+
+package dot.junit;
+
+
+import com.android.ddmlib.IDevice;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.Scanner;
+
+public class DeviceUtil {
+
+    private static boolean DEBUG = System.getProperty("cts.vm-tests.debug") != null;
+
+    /**
+     * Executes the command and its arguments in a native process.
+     *
+     * @param commandAndArgs a string array to be passed containing the
+     *            executable and its arguments
+     * @param okIndicator if not null, this String must occur in the stdout of
+     *            the executable (since only checking for the return code is not
+     *            sufficient e.g. for adb shell cmd)
+     * @throws Exception thrown by the underlying command in case of an error.
+     */
+    public static void digestCommand(String[] commandAndArgs, String okIndicator) {
+        RuntimeException re = null;
+        try {
+            if (DEBUG) {
+                String c = "";
+                for (int i = 0; i < commandAndArgs.length; i++) {
+                    c += commandAndArgs[i] + " ";
+                }
+                System.out.print("com: " + c);
+            }
+            StringBuilder sb = new StringBuilder();
+            ProcessBuilder pb = new ProcessBuilder(commandAndArgs).redirectErrorStream(true);
+            Process p = pb.start();
+
+            InputStream is = p.getInputStream();
+            Scanner scanner = new Scanner(is);
+            int retCode = p.waitFor();
+            while (scanner.hasNextLine()) {
+                sb.append(scanner.nextLine());
+            }
+            scanner.close();
+            if (retCode != 0 || (okIndicator != null && !sb.toString().contains(okIndicator))) {
+                String msg = sb.toString() + "\nreturn code: " + retCode;
+                re = new RuntimeException(msg);
+                if (DEBUG) System.out.println("-> error! msg:"+msg);
+            } else {
+                if (DEBUG) System.out.println(" -> " + retCode);
+            }
+        } catch (Exception e) {
+            throw new RuntimeException("Exception occurred: " + e.getClass().getName() + ", msg:"
+                    + e.getMessage());
+        } finally {
+            if (re != null) {
+                throw re;
+            }
+        }
+    }
+
+    public static void adbExec(IDevice device, String tmpdir, String classpath, String mainclass) {
+        DeviceUtil.digestCommand(new String[] {"adb", "-s", device.getSerialNumber(), "shell",
+               "ANDROID_DATA=" + tmpdir, "dalvikvm", "-Xint:portable", "-Xmx512M", "-Xss32K",
+               "-Djava.io.tmpdir=" + tmpdir, "-classpath", classpath, mainclass, "&&",
+               "echo", "mk_dalvikvmok" }, "mk_dalvikvmok");
+    }
+ }