Merge pull request msgpack#28 from komamitsu/add_dalvik_vm_checker

komamitsu · komamitsu · commit 7d231a99c857 · 2013-01-29T09:38:07.000-08:00
added DalvikVmChecker
diff --git a/src/main/java/org/msgpack/template/builder/TemplateBuilderChain.java b/src/main/java/org/msgpack/template/builder/TemplateBuilderChain.java
@@ -22,15 +22,12 @@
 import java.util.List;
 
 import org.msgpack.template.TemplateRegistry;
+import org.msgpack.util.android.DalvikVmChecker;
 
 public class TemplateBuilderChain {
 
     private static boolean enableDynamicCodeGeneration() {
-        try {
-            return !System.getProperty("java.vm.name").equals("Dalvik");
-        } catch (Exception e) {
-            return true;
-        }
+        return !DalvikVmChecker.isDalvikVm();
     }
 
     protected List<TemplateBuilder> templateBuilders;
diff --git a/src/main/java/org/msgpack/util/android/DalvikVmChecker.java b/src/main/java/org/msgpack/util/android/DalvikVmChecker.java
@@ -0,0 +1,17 @@
+package org.msgpack.util.android;
+
+public final class DalvikVmChecker {
+    private static final boolean isDalvikVm;
+    static {
+        boolean isIt = false;
+        try {
+            isIt = System.getProperty("java.vm.name").equals("Dalvik");
+        } finally {
+            isDalvikVm = isIt;
+        }
+    }
+    
+    public static boolean isDalvikVm() {
+        return isDalvikVm;
+    }
+}
