Adding JMCR-Stable version

[Benchmarks_CSolver.git] / JMCR-Stable / real-world application / MyDerby-10.3 / java / engine / org / apache / derby / impl / services / monitor / UpdateServiceProperties.java

diff --git a/JMCR-Stable/real-world application/MyDerby-10.3/java/engine/org/apache/derby/impl/services/monitor/UpdateServiceProperties.java b/JMCR-Stable/real-world application/MyDerby-10.3/java/engine/org/apache/derby/impl/services/monitor/UpdateServiceProperties.java
new file mode 100644 (file)
index 0000000..5d7d208
--- /dev/null
+++ b/JMCR-Stable/real-world application/MyDerby-10.3/java/engine/org/apache/derby/impl/services/monitor/UpdateServiceProperties.java
@@ -0,0 +1,140 @@
+/*\r
+\r
+   Derby - Class org.apache.derby.impl.services.monitor.UpdateServiceProperties\r
+\r
+   Licensed to the Apache Software Foundation (ASF) under one or more\r
+   contributor license agreements.  See the NOTICE file distributed with\r
+   this work for additional information regarding copyright ownership.\r
+   The ASF licenses this file to you under the Apache License, Version 2.0\r
+   (the "License"); you may not use this file except in compliance with\r
+   the License.  You may obtain a copy of the License at\r
+\r
+      http://www.apache.org/licenses/LICENSE-2.0\r
+\r
+   Unless required by applicable law or agreed to in writing, software\r
+   distributed under the License is distributed on an "AS IS" BASIS,\r
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+   See the License for the specific language governing permissions and\r
+   limitations under the License.\r
+\r
+ */\r
+\r
+package org.apache.derby.impl.services.monitor;\r
+\r
+import org.apache.derby.iapi.services.monitor.PersistentService;\r
+import org.apache.derby.iapi.services.sanity.SanityManager;\r
+\r
+import java.util.Properties;\r
+import java.util.Hashtable;\r
+import org.apache.derby.io.WritableStorageFactory;\r
+\r
+import org.apache.derby.iapi.error.StandardException;\r
+import org.apache.derby.iapi.error.PassThroughException;\r
+import org.apache.derby.iapi.reference.Property;\r
+\r
+/**\r
+*/\r
+public class UpdateServiceProperties extends Properties {\r
+\r
+       private PersistentService serviceType;\r
+       private String serviceName;\r
+    private WritableStorageFactory storageFactory;\r
+    \r
+       /*\r
+       Fix for bug 3668: Following would allow user to change properties while in the session\r
+       in which the database was created.\r
+       While the database is being created, serviceBooted would be false. What that means\r
+       is, don't save changes into services.properties file from here until the database\r
+       is created. Instead, let BaseMonitor save the properties at the end of the database\r
+  creation and also set serviceBooted to true at that point. From then on, the\r
+  services.properties file updates will be made here.\r
+       */\r
+       private boolean serviceBooted;\r
+\r
+       public UpdateServiceProperties(PersistentService serviceType, String serviceName,\r
+       Properties actualSet, boolean serviceBooted) {\r
+               super(actualSet);\r
+               this.serviceType = serviceType;\r
+               this.serviceName = serviceName;\r
+               this.serviceBooted = serviceBooted;\r
+       }\r
+\r
+       //look at the comments for serviceBooted at the top to understand this.\r
+       public void setServiceBooted() {\r
+               serviceBooted = true;\r
+       }\r
+\r
+    public void setStorageFactory( WritableStorageFactory storageFactory)\r
+    {\r
+        this.storageFactory = storageFactory;\r
+    }\r
+\r
+    public WritableStorageFactory getStorageFactory()\r
+    {\r
+        return storageFactory;\r
+    }\r
+    \r
+       /*\r
+       ** Methods of Hashtable (overridden)\r
+       */\r
+\r
+       /**     \r
+               Put the key-value pair in the Properties set and\r
+               mark this set as modified.\r
+\r
+               @see Hashtable#put\r
+       */\r
+       public Object put(Object key, Object value) {\r
+               Object ref = defaults.put(key, value);\r
+               if (!((String) key).startsWith(Property.PROPERTY_RUNTIME_PREFIX))\r
+                       update();\r
+               return ref;\r
+       }\r
+\r
+       /**     \r
+               Remove the key-value pair from the Properties set and\r
+               mark this set as modified.\r
+\r
+               @see Hashtable#remove\r
+       */\r
+       public Object remove(Object key) {\r
+               Object ref = defaults.remove(key);\r
+               if ((ref != null) &&\r
+                       (!((String) key).startsWith(Property.PROPERTY_RUNTIME_PREFIX)))\r
+                       update();\r
+               return ref;\r
+       }\r
+\r
+       /**\r
+          Saves the service properties to the disk.\r
+        */\r
+       public void saveServiceProperties()\r
+       {\r
+        if( SanityManager.DEBUG)\r
+            SanityManager.ASSERT( storageFactory != null,\r
+                                  "UpdateServiceProperties.saveServiceProperties() called before storageFactory set.");\r
+               try{\r
+                       serviceType.saveServiceProperties(serviceName, storageFactory,\r
+                                       BaseMonitor.removeRuntimeProperties(defaults), false);\r
+               } catch (StandardException mse) {\r
+                       throw new PassThroughException(mse);\r
+               }\r
+       }\r
+\r
+       /*\r
+       ** Class specific methods.\r
+       */\r
+\r
+       private void update() {\r
+\r
+               try {\r
+                       //look at the comments for serviceBooted at the top to understand this if.\r
+                       if (serviceBooted)\r
+                               serviceType.saveServiceProperties(serviceName, storageFactory,\r
+                                       BaseMonitor.removeRuntimeProperties(defaults), true);\r
+               } catch (StandardException mse) {\r
+                       throw new PassThroughException(mse);\r
+               }\r
+       }\r
+\r
+}\r