From 132aa8a77685ec92bc90c03f987650d275a7b639 Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Mon, 30 Sep 2013 06:59:11 +0000
Subject: 2.0.1 RC1 release tag

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1527464 13f79535-47bb-0310-9956-ffa450edef68
---
 .../sca/impl/hotupdate/LastModifiedTracker.java    | 75 ++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 sca-java-2.x/tags/2.0.1-RC1/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/hotupdate/LastModifiedTracker.java

(limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/hotupdate/LastModifiedTracker.java')

diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/hotupdate/LastModifiedTracker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/hotupdate/LastModifiedTracker.java
new file mode 100644
index 0000000000..a129f4d0fe
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/domain-node/src/main/java/org/apache/tuscany/sca/impl/hotupdate/LastModifiedTracker.java
@@ -0,0 +1,75 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.impl.hotupdate;
+
+import java.io.File;
+
+/**
+ * Keeps track of if a file or directory has been modified since a previous check
+ */
+public class LastModifiedTracker {
+
+    private File targetFile;
+    private Long lastModified;
+
+    public LastModifiedTracker(File targetFile) {
+        this.targetFile = targetFile;
+        checkModified();
+    }
+    
+    public void reset() {
+        lastModified = null;
+    }
+    
+    public boolean checkModified() {
+        
+        long newLastModified = getNewLastModified(targetFile);
+
+        if (lastModified == null) {
+            lastModified = newLastModified;
+            return false;
+        }
+        
+        if (newLastModified > lastModified) {
+            lastModified = newLastModified;
+            return true;
+        }
+        
+        return false;
+    }
+
+    protected long getNewLastModified(File f) {
+
+        if (!f.exists()) return 0;
+        
+        if (f.isFile()) return f.lastModified();
+
+        long newLastModified = f.lastModified();
+
+        for (File fx : f.listFiles()) {
+            long fxLastModified = getNewLastModified(fx);
+            if (fxLastModified > newLastModified){
+                newLastModified = fxLastModified;
+            }
+        }
+
+        return newLastModified;
+    }
+}
-- 
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