Revert "Remove support for actions/rpc/notifications"

[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..0d17e38
--- /dev/null
+++ b/opendaylight/blueprint/src/main/java/org/opendaylight/controller/blueprint/ext/RpcUtil.java
@@ -0,0 +1,45 @@
+/*
+ * 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.List;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import org.opendaylight.mdsal.binding.spec.reflect.BindingReflections;
+import org.opendaylight.mdsal.dom.spi.ContentRoutedRpcContext;
+import org.opendaylight.yangtools.yang.binding.RpcService;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
+import org.opendaylight.yangtools.yang.model.api.stmt.RpcEffectiveStatement;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Utility methods for dealing with various aspects of RPCs and actions.
+ */
+final class RpcUtil {
+    private static final Logger LOG = LoggerFactory.getLogger(RpcUtil.class);
+
+    private RpcUtil() {
+        // Hidden on purpose
+    }
+
+    static List<QName> decomposeRpcService(final Class<RpcService> service,
+            final EffectiveModelContext schemaContext, final Predicate<ContentRoutedRpcContext> filter) {
+        final var moduleName = BindingReflections.getQNameModule(service);
+        final var module = schemaContext.findModuleStatement(moduleName)
+            .orElseThrow(() -> new IllegalArgumentException("Module not found in SchemaContext: " + moduleName
+                + "; service: " + service));
+        LOG.debug("Resolved service {} to module {}", service, module);
+
+        return module.streamEffectiveSubstatements(RpcEffectiveStatement.class)
+            .filter(rpc -> filter.test(ContentRoutedRpcContext.forRpc(rpc)))
+            .map(RpcEffectiveStatement::argument)
+            .collect(Collectors.toList());
+    }
+}