add main() for running without jsvc.

* add StandaloneMain class
* move common code to new Main class

1 files changed, 71 insertions, 0 deletions

diff --git a/jdisc_core/src/main/java/com/yahoo/jdisc/core/StandaloneMain.java b/jdisc_core/src/main/java/com/yahoo/jdisc/core/StandaloneMain.java
new file mode 100644
index 00000000000..552d423f8cb
--- /dev/null
+++ b/jdisc_core/src/main/java/com/yahoo/jdisc/core/StandaloneMain.java
@@ -0,0 +1,71 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.jdisc.core;
+
+import com.yahoo.system.CatchSigTerm;
+
+import java.util.Arrays;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+
+/**
+ * @author arnej27959
+ */
+public class StandaloneMain {
+
+    private static final Logger log = Logger.getLogger(StandaloneMain.class.getName());
+    private final BootstrapLoader loader;
+
+    static {
+        // force load slf4j to avoid other logging frameworks from initializing before it
+        org.slf4j.LoggerFactory.getLogger(org.slf4j.Logger.ROOT_LOGGER_NAME);
+    }
+
+    public StandaloneMain() {
+        this.loader = new ApplicationLoader(Main.newOsgiFramework(), Main.newConfigModule());
+    }
+
+    public static void main(String [] args) {
+        if (args == null || args.length != 1 || args[0] == null) {
+            throw new IllegalArgumentException("Expected 1 argument, got " + Arrays.toString(args) + ".");
+        }
+        StandaloneMain me = new StandaloneMain();
+        me.run(args[0]);
+    }
+
+    void run(String bundleLocation) {
+        try {
+		log.info("Initializing application without privileges.");
+		loader.init(bundleLocation, false);
+		loader.start();
+		setupSigTermHandler();
+		waitForShutdown();
+		// Event.stopping(APPNAME, "shutdown");
+		loader.stop();
+		// Event.stopped(APPNAME, 0, 0);
+		loader.destroy();
+        // System.exit(0);
+        } catch (Exception e) {
+            log.log(Level.WARNING, "Unexpected: ", e);
+            System.exit(6);
+        }
+    }
+
+    private final AtomicBoolean signalCaught = new AtomicBoolean(false);
+    private void setupSigTermHandler() {
+        CatchSigTerm.setup(signalCaught); // catch termination signal
+    }
+    private void waitForShutdown() {
+        synchronized (signalCaught) {
+            while (!signalCaught.get()) {
+                try {
+                    signalCaught.wait();
+                } catch (InterruptedException e) {
+                    // empty
+                }
+            }
+        }
+    }
+
+}