Use callbacks while parsing to NormalizedNodes.

[controller.git] / opendaylight / netconf / mdsal-netconf-connector / src / main / java / org / opendaylight / controller / netconf / mdsal / connector / ops / DataTreeChangeTracker.java

diff --git a/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/DataTreeChangeTracker.java b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/DataTreeChangeTracker.java
new file mode 100644 (file)
index 0000000..e22a02f
--- /dev/null
+++ b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/DataTreeChangeTracker.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.netconf.mdsal.connector.ops;
+
+import com.google.common.collect.Lists;
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Deque;
+import java.util.List;
+import org.opendaylight.yangtools.yang.data.api.ModifyAction;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+
+public class DataTreeChangeTracker {
+
+    private final ModifyAction defaultAction;
+
+    private final Deque<ModifyAction> actions;
+    private final Deque<PathArgument> currentPath;
+    private final ArrayList<DataTreeChange> dataTreeChanges;
+    private int deleteOperationTracker = 0;
+    private int removeOperationTracker = 0;
+
+    public DataTreeChangeTracker(final ModifyAction defaultAction) {
+        this.defaultAction = defaultAction;
+        this.currentPath = new ArrayDeque<>();
+        this.actions = new ArrayDeque<>();
+        this.dataTreeChanges = new ArrayList<>();
+    }
+
+    public void pushAction(final ModifyAction action) {
+        if (ModifyAction.DELETE.equals(action)) {
+            deleteOperationTracker++;
+        }
+
+        if (ModifyAction.REMOVE.equals(action)) {
+            removeOperationTracker++;
+        }
+        this.actions.push(action);
+    }
+
+    public ModifyAction peekAction() {
+        return this.actions.peekFirst();
+    }
+
+    public ModifyAction popAction() {
+        final ModifyAction popResult = actions.pop();
+        if (ModifyAction.DELETE.equals(popResult)) {
+            deleteOperationTracker--;
+        }
+
+        if (ModifyAction.REMOVE.equals(popResult)) {
+            removeOperationTracker--;
+        }
+        return popResult;
+    }
+
+    public int getDeleteOperationTracker() {
+        return deleteOperationTracker;
+    }
+
+    public int getRemoveOperationTracker() {
+        return removeOperationTracker;
+    }
+
+    public void addDataTreeChange(final DataTreeChange change) {
+        dataTreeChanges.add(change);
+    }
+
+    public ArrayList<DataTreeChange> getDataTreeChanges() {
+        return dataTreeChanges;
+    }
+
+    public ModifyAction getDefaultAction() {
+        return defaultAction;
+    }
+
+    public void pushPath(final PathArgument pathArgument) {
+        currentPath.push(pathArgument);
+    }
+
+    public PathArgument popPath() {
+        return currentPath.pop();
+    }
+
+    public Deque<PathArgument> getCurrentPath() {
+        return currentPath;
+    }
+
+
+    public static final class DataTreeChange {
+
+        private final NormalizedNode<?, ?> changeRoot;
+        private final ModifyAction action;
+        private final List<PathArgument> path;
+
+        public DataTreeChange(final NormalizedNode<?, ?> changeRoot, final ModifyAction action, final ArrayList<PathArgument> path) {
+            this.changeRoot = changeRoot;
+            this.action = action;
+            this.path = Lists.reverse(path);
+        }
+
+        public NormalizedNode<?, ?> getChangeRoot() {
+            return changeRoot;
+        }
+
+        public ModifyAction getAction() {
+            return action;
+        }
+
+        public List<PathArgument> getPath() {
+            return path;
+        }
+    }
+}