1 files changed, 70 insertions, 0 deletions
diff --git a/netconf/restconf/restconf-common/src/main/java/org/opendaylight/restconf/common/util/OperationsResourceUtils.java b/netconf/restconf/restconf-common/src/main/java/org/opendaylight/restconf/common/util/OperationsResourceUtils.java
new file mode 100644
index 0000000..ada0442
--- /dev/null
+++ b/netconf/restconf/restconf-common/src/main/java/org/opendaylight/restconf/common/util/OperationsResourceUtils.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2020 PANTHEON.tech, s.r.o. 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.restconf.common.util;
+
+import com.google.common.collect.ImmutableSet;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Map;
+import java.util.Map.Entry;
+import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
+import org.opendaylight.mdsal.dom.api.DOMMountPoint;
+import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
+import org.opendaylight.yangtools.yang.common.Empty;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.builder.DataContainerNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
+import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
+import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
+
+
+// FIXME: remove this class
+public final class OperationsResourceUtils {
+    private OperationsResourceUtils() {
+        // Hidden on purpose
+    }
+
+    public static @NonNull Entry<InstanceIdentifierContext, ContainerNode>
+                contextForModelContext(final @NonNull SchemaContext context, final @Nullable DOMMountPoint mountPoint) {
+        // Determine which modules we need and construct leaf schemas to correspond to all RPC definitions
+        final Collection<Module> modules = new ArrayList<>();
+        final ArrayList<OperationsLeafSchemaNode> rpcLeafSchemas = new ArrayList<>();
+        for (final Module m : context.getModules()) {
+            final Collection<? extends RpcDefinition> rpcs = m.getRpcs();
+            if (!rpcs.isEmpty()) {
+                modules.add(new OperationsImportedModule(m));
+                rpcLeafSchemas.ensureCapacity(rpcLeafSchemas.size() + rpcs.size());
+                for (RpcDefinition rpc : rpcs) {
+                    rpcLeafSchemas.add(new OperationsLeafSchemaNode(rpc));
+                }
+            }
+        }
+
+        // Now generate a module for RESTCONF so that operations contain what they need
+        final OperationsContainerSchemaNode operatationsSchema = new OperationsContainerSchemaNode(rpcLeafSchemas);
+        modules.add(new OperationsRestconfModule(operatationsSchema));
+
+        // Now build the operations container and combine it with the context
+        final DataContainerNodeBuilder<NodeIdentifier, ContainerNode> operationsBuilder = Builders.containerBuilder()
+                .withNodeIdentifier(new NodeIdentifier(OperationsContainerSchemaNode.QNAME));
+        for (final OperationsLeafSchemaNode leaf : rpcLeafSchemas) {
+            operationsBuilder.withChild(ImmutableNodes.leafNode(leaf.getQName(), Empty.value()));
+        }
+
+        final var opContext = new OperationsEffectiveModuleContext(ImmutableSet.copyOf(modules));
+        final var stack = SchemaInferenceStack.of(opContext);
+        stack.enterSchemaTree(operatationsSchema.getQName());
+
+        return Map.entry(InstanceIdentifierContext.ofStack(stack, mountPoint), operationsBuilder.build());
+    }
+}