Migrate away from sal-common-impl

[netconf.git] / restconf / restconf-nb-bierman02 / src / main / java / org / opendaylight / netconf / sal / restconf / impl / DataNormalizer.java

diff --git a/restconf/restconf-nb-bierman02/src/main/java/org/opendaylight/netconf/sal/restconf/impl/DataNormalizer.java b/restconf/restconf-nb-bierman02/src/main/java/org/opendaylight/netconf/sal/restconf/impl/DataNormalizer.java
new file mode 100644 (file)
index 0000000..b03f860
--- /dev/null
+++ b/restconf/restconf-nb-bierman02/src/main/java/org/opendaylight/netconf/sal/restconf/impl/DataNormalizer.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2014 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.netconf.sal.restconf.impl;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import com.google.common.collect.ImmutableList;
+import java.util.Iterator;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+
+class DataNormalizer {
+    private final DataNormalizationOperation<?> operation;
+
+    DataNormalizer(final SchemaContext ctx) {
+        operation = DataNormalizationOperation.from(ctx);
+    }
+
+    YangInstanceIdentifier toNormalized(final YangInstanceIdentifier legacy) {
+        ImmutableList.Builder<PathArgument> normalizedArgs = ImmutableList.builder();
+
+        DataNormalizationOperation<?> currentOp = operation;
+        Iterator<PathArgument> arguments = legacy.getPathArguments().iterator();
+
+        try {
+            while (arguments.hasNext()) {
+                PathArgument legacyArg = arguments.next();
+                currentOp = currentOp.getChild(legacyArg);
+                checkArgument(currentOp != null,
+                        "Legacy Instance Identifier %s is not correct. Normalized Instance Identifier so far %s",
+                        legacy, normalizedArgs.build());
+                while (currentOp.isMixin()) {
+                    normalizedArgs.add(currentOp.getIdentifier());
+                    currentOp = currentOp.getChild(legacyArg.getNodeType());
+                }
+                normalizedArgs.add(legacyArg);
+            }
+        } catch (DataNormalizationException e) {
+            throw new IllegalArgumentException(String.format("Failed to normalize path %s", legacy), e);
+        }
+
+        return YangInstanceIdentifier.create(normalizedArgs.build());
+    }
+
+    DataNormalizationOperation<?> getOperation(final YangInstanceIdentifier legacy)
+            throws DataNormalizationException {
+        DataNormalizationOperation<?> currentOp = operation;
+
+        for (PathArgument pathArgument : legacy.getPathArguments()) {
+            currentOp = currentOp.getChild(pathArgument);
+        }
+        return currentOp;
+    }
+
+    YangInstanceIdentifier toLegacy(final YangInstanceIdentifier normalized) throws DataNormalizationException {
+        ImmutableList.Builder<PathArgument> legacyArgs = ImmutableList.builder();
+        DataNormalizationOperation<?> currentOp = operation;
+        for (PathArgument normalizedArg : normalized.getPathArguments()) {
+            currentOp = currentOp.getChild(normalizedArg);
+            if (!currentOp.isMixin()) {
+                legacyArgs.add(normalizedArg);
+            }
+        }
+        return YangInstanceIdentifier.create(legacyArgs.build());
+    }
+
+    DataNormalizationOperation<?> getRootOperation() {
+        return operation;
+    }
+}