diff options
Diffstat (limited to 'java/src/IceUtilInternal/FileLock.java')
| -rw-r--r-- | java/src/IceUtilInternal/FileLock.java | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/java/src/IceUtilInternal/FileLock.java b/java/src/IceUtilInternal/FileLock.java index 6a540a48f86..cdac5522cce 100644 --- a/java/src/IceUtilInternal/FileLock.java +++ b/java/src/IceUtilInternal/FileLock.java @@ -15,6 +15,8 @@ import java.io.FileWriter; import java.nio.channels.FileChannel; import java.nio.channels.OverlappingFileLockException; +import java.lang.reflect.Method; + public final class FileLock { // @@ -70,23 +72,52 @@ public final class FileLock // The output is JVM dependent. With the Sun // implementation it's `pid@hostname' // - Class<?> fC = IceInternal.Util.findClass("java.lang.management.ManagementFactory", null); - Class<?> mC = IceInternal.Util.findClass("java.lang.management.RuntimeMXBean", null); - - java.lang.reflect.Method getRuntimeMXBean = fC.getDeclaredMethod("getRuntimeMXBean", (Class<?>[])null); - - java.lang.reflect.Method getName = mC.getDeclaredMethod("getName", (Class<?>[])null); + try + { + // + // We access java.lang.management classes using reflection + // because these classes are not available with Android + // Dalvik JVM. + // + if(!System.getProperty("java.vm.name").startsWith("Dalvik")) + { + Class<?> fC = IceInternal.Util.findClass("java.lang.management.ManagementFactory", null); + Class<?> mC = IceInternal.Util.findClass("java.lang.management.RuntimeMXBean", null); - Object mxBean = getRuntimeMXBean.invoke(null); + Method getRuntimeMXBean = fC.getDeclaredMethod("getRuntimeMXBean", (Class<?>[])null); - _randFile.writeUTF((String)getName.invoke(mxBean)); + Method getName = mC.getDeclaredMethod("getName", (Class<?>[])null); + Object mxBean = getRuntimeMXBean.invoke(null); + _randFile.writeUTF((String)getName.invoke(mxBean)); + } + else + { + // + // In Android with Dalvik we can use android.os.Process to get the + // process pid. That is done using reflection because it is specific + // for Android Dalvik VM. + // + Class<?> pC = IceInternal.Util.findClass("android.os.Process", null); + Method myPid = pC.getDeclaredMethod("myPid", (Class<?>[])null); + _randFile.writeUTF(((Integer)myPid.invoke(null)).toString()); + } + } + catch(NoSuchMethodException ex) + { + } + catch(IllegalAccessException ex) + { + } + catch(java.lang.reflect.InvocationTargetException ex) + { + } // // Don't close _randFile here or the lock will be released. It is called // during release see comments there. // } - catch(java.lang.Exception ex) + catch(java.io.IOException ex) { release(); throw new IceUtil.FileLockException(path, ex); |