BUG-7608: Add ActionServiceMetadata and ActionProviderBean

[controller.git] / opendaylight / blueprint / src / main / java / org / opendaylight / controller / blueprint / ext / RpcUtil.java

diff --git a/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/RpcUtil.java b/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/RpcUtil.java
new file mode 100644 (file)
index 0000000..ee9e36e
--- /dev/null
+++ b/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/RpcUtil.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2017 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.blueprint.ext;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.function.Predicate;
+import org.opendaylight.controller.md.sal.dom.broker.spi.rpc.RpcRoutingStrategy;
+import org.opendaylight.yangtools.yang.binding.RpcService;
+import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
+import org.opendaylight.yangtools.yang.common.QNameModule;
+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.api.SchemaPath;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Utility methods for dealing with various aspects of RPCs and actions.
+ *
+ * @author Robert Varga
+ */
+final class RpcUtil {
+    private static final Logger LOG = LoggerFactory.getLogger(RpcUtil.class);
+
+    private RpcUtil() {
+        throw new UnsupportedOperationException();
+    }
+
+    static Collection<SchemaPath> decomposeRpcService(final Class<RpcService> service,
+            final SchemaContext schemaContext, final Predicate<RpcRoutingStrategy> filter) {
+        final QNameModule moduleName = BindingReflections.getQNameModule(service);
+        final Module module = schemaContext.findModuleByNamespaceAndRevision(moduleName.getNamespace(),
+                moduleName.getRevision());
+        LOG.debug("Resolved service {} to module {}", service, module);
+
+        final Collection<RpcDefinition> rpcs = module.getRpcs();
+        final Collection<SchemaPath> ret = new ArrayList<>(rpcs.size());
+        for (RpcDefinition rpc : rpcs) {
+            final RpcRoutingStrategy strategy = RpcRoutingStrategy.from(rpc);
+            if (filter.test(strategy)) {
+                ret.add(rpc.getPath());
+            }
+        }
+
+        return ret;
+    }
+}