X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fforwardingrules-manager%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Ffrm%2FAbstractTransaction.xtend;fp=opendaylight%2Fmd-sal%2Fforwardingrules-manager%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Ffrm%2FAbstractTransaction.xtend;h=9f45a11d2dac994f166239a6f7420572e2ff6b78;hp=0000000000000000000000000000000000000000;hb=71df6f6d7770d1c4fda8dd4989ca251860fca853;hpb=03abf047ba966c53f4901d36ae5198156d66dc05

diff --git a/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/AbstractTransaction.xtend b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/AbstractTransaction.xtend
new file mode 100644
index 0000000000..9f45a11d2d
--- /dev/null
+++ b/opendaylight/md-sal/forwardingrules-manager/src/main/java/org/opendaylight/controller/frm/AbstractTransaction.xtend
@@ -0,0 +1,99 @@
+package org.opendaylight.controller.frm
+
+import java.util.Collections
+import java.util.HashSet
+import java.util.Map.Entry
+import java.util.Set
+import org.opendaylight.controller.md.sal.common.api.data.DataCommitHandler.DataCommitTransaction
+import org.opendaylight.controller.md.sal.common.api.data.DataModification
+import org.opendaylight.controller.sal.common.util.Rpcs
+import org.opendaylight.yangtools.yang.binding.DataObject
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier
+import org.opendaylight.yangtools.yang.common.RpcError
+
+abstract class AbstractTransaction implements DataCommitTransaction<InstanceIdentifier<?extends DataObject>, DataObject> {
+        
+    @Property
+    val DataModification<InstanceIdentifier<? extends DataObject>, DataObject> modification;
+    
+    new(DataModification<InstanceIdentifier<? extends DataObject>, DataObject> modification) {
+        _modification = modification;
+    }
+    
+    def void validate() throws IllegalStateException
+    
+    override finish() throws IllegalStateException {
+        validate()
+        callRpcs();
+        return Rpcs.getRpcResult(true, null, Collections.<RpcError>emptySet());     
+    }
+    
+    override getModification() {
+        return _modification;
+    }
+    
+    override rollback() throws IllegalStateException {
+        rollbackRpcs();
+        return Rpcs.getRpcResult(true, null, Collections.<RpcError>emptySet());
+    }
+    
+    def private callRpcs() {
+        val Set<Entry<InstanceIdentifier<? extends DataObject>, DataObject>> createdEntries = _modification.getCreatedConfigurationData().entrySet();
+
+        /*
+         * This little dance is because updatedEntries contains both created and modified entries
+         * The reason I created a new HashSet is because the collections we are returned are immutable.
+         */
+        val Set<Entry<InstanceIdentifier<? extends DataObject>, DataObject>> updatedEntries = new HashSet<Entry<InstanceIdentifier<? extends DataObject>, DataObject>>();
+        updatedEntries.addAll(_modification.getUpdatedConfigurationData().entrySet());
+        updatedEntries.removeAll(createdEntries);
+
+        val Set<InstanceIdentifier<? extends DataObject>> removeEntriesInstanceIdentifiers = _modification.getRemovedConfigurationData();
+        for (Entry<InstanceIdentifier<? extends DataObject >, DataObject> entry : createdEntries) {
+            add(entry.key,entry.value);
+        }
+        for (Entry<InstanceIdentifier<?>, DataObject> entry : updatedEntries) {
+                val originalFlow = _modification.originalConfigurationData.get(entry.key);
+                val updatedFlow = entry.value
+                update(entry.key, originalFlow ,updatedFlow);
+        }
+
+        for (InstanceIdentifier<?> instanceId : removeEntriesInstanceIdentifiers ) {
+            val removeValue = _modification.getOriginalConfigurationData.get(instanceId);
+                remove(instanceId,removeValue);
+        }
+    }
+    
+    def void remove(InstanceIdentifier<?> identifier, DataObject remove)
+    
+    def void update(InstanceIdentifier<?> identifier, DataObject original, DataObject update)
+    
+    def void add(InstanceIdentifier<?> identifier, DataObject add)
+    
+    def private rollbackRpcs() {
+        val Set<Entry<InstanceIdentifier<? extends DataObject>, DataObject>> createdEntries = _modification.getCreatedConfigurationData().entrySet();
+
+        /*
+         * This little dance is because updatedEntries contains both created and modified entries
+         * The reason I created a new HashSet is because the collections we are returned are immutable.
+         */
+        val Set<Entry<InstanceIdentifier<? extends DataObject>, DataObject>> updatedEntries = new HashSet<Entry<InstanceIdentifier<? extends DataObject>, DataObject>>();
+        updatedEntries.addAll(_modification.getUpdatedConfigurationData().entrySet());
+        updatedEntries.removeAll(createdEntries);
+
+        val Set<InstanceIdentifier<? >> removeEntriesInstanceIdentifiers = _modification.getRemovedConfigurationData();
+        for (Entry<InstanceIdentifier<?>, DataObject> entry : createdEntries) {
+            remove(entry.key,entry.value); // because we are rolling back, remove what we would have added.            
+        }
+        for (Entry<InstanceIdentifier<?>, DataObject> entry : updatedEntries) {
+            val originalFlow = _modification.originalConfigurationData.get(entry.key);
+            val updatedFlow = entry.value
+            update(entry.key, updatedFlow ,originalFlow);// because we are rolling back, replace the updated with the original
+        }
+
+        for (InstanceIdentifier<?> instanceId : removeEntriesInstanceIdentifiers ) {
+            val removeValue = _modification.getOriginalConfigurationData.get(instanceId);
+            add(instanceId,removeValue);// because we are rolling back, add what we would have removed.
+        }
+    }    
+}
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