Move EffectiveStatementMixins to yang-model-spi

[yangtools.git] / yang / yang-model-api / src / main / java / org / opendaylight / yangtools / yang / model / api / SchemaNodeDefaults.java

diff --git a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaNodeDefaults.java b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaNodeDefaults.java
index 63b1a50d0dfec05934bb1082141a5fb733d93562..b9fae29b4add84264f134ee94d161e4ac57f56ae 100644 (file)
--- a/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaNodeDefaults.java
+++ b/yang/yang-model-api/src/main/java/org/opendaylight/yangtools/yang/model/api/SchemaNodeDefaults.java
@@ -7,9 +7,13 @@
  */
 package org.opendaylight.yangtools.yang.model.api;
 
+import static com.google.common.base.Verify.verifyNotNull;
+
 import com.google.common.annotations.Beta;
 import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.eclipse.jdt.annotation.Nullable;
+import org.opendaylight.yangtools.concepts.Immutable;
+import org.opendaylight.yangtools.yang.common.QName;
 
 @Beta
 @NonNullByDefault
@@ -44,4 +48,36 @@ public final class SchemaNodeDefaults {
     public static SchemaPath throwUnsupportedIfNull(final Object impl, final @Nullable SchemaPath path) {
         return path != null ? path : throwUnsupported(impl);
     }
+
+    /**
+     * Extract {@link QName} from a path object.
+     *
+     * @param path Path handle
+     * @return Extracted QName
+     * @throws NullPointerException if {@code path} is null
+     * @throws IllegalArgumentException if {@code path} is not supported
+     */
+    // FIXME: 8.0.0: consider deprecating this method
+    public static QName extractQName(final Immutable path) {
+        if (path instanceof QName) {
+            return (QName) path;
+        } else if (path instanceof SchemaPath) {
+            return verifyNotNull(((SchemaPath) path).getLastComponent());
+        } else {
+            throw new IllegalArgumentException("Unhandled object " + path);
+        }
+    }
+
+    /**
+     * Extract {@link SchemaPath} from a path object.
+     *
+     * @param impl Implementation object
+     * @param path Path handle
+     * @return Extracted SchemaPath
+     * @throws UnsupportedOperationException if {@code path} does not hold a SchemaPath
+     */
+    // FIXME: 8.0.0: consider deprecating this method
+    public static SchemaPath extractPath(final Object impl, final Immutable path) {
+        return path instanceof SchemaPath ? (SchemaPath) path : SchemaNodeDefaults.throwUnsupported(impl);
+    }
 }