Initial code drop of yang model driven configuration system

[controller.git] / opendaylight / config / config-manager / src / test / java / org / opendaylight / controller / config / manager / impl / ClassBasedModuleFactory.java

diff --git a/opendaylight/config/config-manager/src/test/java/org/opendaylight/controller/config/manager/impl/ClassBasedModuleFactory.java b/opendaylight/config/config-manager/src/test/java/org/opendaylight/controller/config/manager/impl/ClassBasedModuleFactory.java
new file mode 100644 (file)
index 0000000..afc79a5
--- /dev/null
+++ b/opendaylight/config/config-manager/src/test/java/org/opendaylight/controller/config/manager/impl/ClassBasedModuleFactory.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2013 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.config.manager.impl;
+
+import java.lang.reflect.Constructor;
+import java.util.Arrays;
+import java.util.List;
+
+import org.opendaylight.controller.config.api.DependencyResolver;
+import org.opendaylight.controller.config.api.DynamicMBeanWithInstance;
+import org.opendaylight.controller.config.api.annotations.AbstractServiceInterface;
+import org.opendaylight.controller.config.spi.Module;
+import org.opendaylight.controller.config.spi.ModuleFactory;
+
+import com.google.common.base.Preconditions;
+import com.google.common.base.Throwables;
+
+/**
+ * Creates new Config beans by calling {@link Class#newInstance()} on provided
+ * config bean class.
+ *
+ */
+public class ClassBasedModuleFactory implements ModuleFactory {
+    private final String implementationName;
+    private final Class<? extends Module> configBeanClass;
+
+    /**
+     * @param implementationName
+     * @param configBeanClass
+     *            class that will be instantiated when createModule is called.
+     *            This class must implement Module interface and all exported
+     *            interfaces.
+     */
+    public ClassBasedModuleFactory(String implementationName,
+            Class<? extends Module> configBeanClass) {
+        this.implementationName = implementationName;
+        this.configBeanClass = configBeanClass;
+    }
+
+    @Override
+    public String getImplementationName() {
+        return implementationName;
+    }
+
+    @Override
+    public Module createModule(String instanceName,
+            DependencyResolver dependencyResolver, DynamicMBeanWithInstance old)
+            throws Exception {
+        Preconditions.checkNotNull(dependencyResolver);
+        Preconditions.checkNotNull(old);
+        Constructor<? extends Module> declaredConstructor;
+        try {
+            declaredConstructor = configBeanClass
+                    .getDeclaredConstructor(DynamicMBeanWithInstance.class);
+        } catch (NoSuchMethodException e) {
+            throw new IllegalStateException(
+                    "Did not find constructor with parameters (DynamicMBeanWithInstance) in "
+                            + configBeanClass, e);
+        }
+        Preconditions.checkState(declaredConstructor != null);
+        return declaredConstructor.newInstance(old);
+    }
+
+    @Override
+    public Module createModule(String instanceName,
+            DependencyResolver dependencyResolver) {
+        try {
+            return configBeanClass.newInstance();
+        } catch (Exception e) {
+            throw Throwables.propagate(e);
+        }
+    }
+
+    @Override
+    public boolean isModuleImplementingServiceInterface(
+            Class<? extends AbstractServiceInterface> serviceInterface) {
+        Class<?>[] classes = configBeanClass.getInterfaces();
+        List<Class<?>> ifc = Arrays.asList(classes);
+        if (ifc.contains(serviceInterface)) {
+            return true;
+        }
+        for (Class<?> c : classes) {
+            ifc = Arrays.asList(c.getInterfaces());
+            if (ifc.contains(serviceInterface)) {
+                return true;
+            }
+        }
+        return false;
+    }
+}