Make it easier to embed

Author: scottf

chaos-runner/src/main/java/io/synadia/chaos/ChaosArguments.java

@@ -43,14 +43,26 @@ public ChaosArguments js(boolean js) {
     }
 
     public ChaosArguments workDirectory(String workDirectory) {
+        if (workDirectory == null || workDirectory.trim().isEmpty()) {
+            this.workDirectory = null;
+            return this;
+        }
         return workDirectory(Paths.get(workDirectory));
     }
 
     public ChaosArguments workDirectory(File workDirectory) {
+        if (workDirectory == null) {
+            this.workDirectory = null;
+            return this;
+        }
         return workDirectory(workDirectory.getPath());
     }
 
     public ChaosArguments workDirectory(Path workDirectory) {
+        if (workDirectory == null) {
+            this.workDirectory = null;
+            return this;
+        }
         this.workDirectory = workDirectory;
         return this;
     }
@@ -151,4 +163,52 @@ public void error(String errMsg) {
         System.err.println("ERROR: " + errMsg);
         System.exit(-1);
     }
+
+    public int getServers() {
+        return servers;
+    }
+
+    public String getClusterName() {
+        return clusterName;
+    }
+
+    public String getServerNamePrefix() {
+        return serverNamePrefix;
+    }
+
+    public boolean isJs() {
+        return js;
+    }
+
+    public Path getWorkDirectory() {
+        return workDirectory;
+    }
+
+    public long getInitialDelay() {
+        return initialDelay;
+    }
+
+    public long getDelay() {
+        return delay;
+    }
+
+    public long getDownTime() {
+        return downTime;
+    }
+
+    public boolean isRandom() {
+        return random;
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    public int getListen() {
+        return listen;
+    }
+
+    public int getMonitor() {
+        return monitor;
+    }
 }

chaos-runner/src/main/java/io/synadia/chaos/ChaosRunner.java

@@ -257,6 +257,10 @@ public static void main(String[] args) {
     }
 
     public static ChaosRunner start(ChaosArguments a) {
+        return start(a, true);
+    }
+
+    public static ChaosRunner start(ChaosArguments a, boolean print) {
         NatsServerRunner.setDefaultOutputLevel(Level.SEVERE);
         try {
             INSTANCE = new ChaosRunner(a);
@@ -265,7 +269,9 @@ public static ChaosRunner start(ChaosArguments a) {
             System.out.println("Failed to start ChaosRunner: " + e.getMessage());
             System.exit(-1);
         }
-        System.out.println(ChaosUtils.toString(INSTANCE, System.lineSeparator(), "[" + System.currentTimeMillis() + "] ", "  ", ""));
+        if (print) {
+            System.out.println(ChaosUtils.toString(INSTANCE, System.lineSeparator(), "[" + System.currentTimeMillis() + "] ", "  ", ""));
+        }
 
         Runtime.getRuntime().addShutdownHook(
             new Thread("app-shutdown-hook") {