Resolve Bug:853 - remove groovy from config code generator.
[controller.git] / opendaylight / config / yang-jmx-generator-plugin / src / main / java / org / opendaylight / controller / config / yangjmxgenerator / plugin / gofactory / AbsFactoryGeneratedObjectFactory.java
diff --git a/opendaylight/config/yang-jmx-generator-plugin/src/main/java/org/opendaylight/controller/config/yangjmxgenerator/plugin/gofactory/AbsFactoryGeneratedObjectFactory.java b/opendaylight/config/yang-jmx-generator-plugin/src/main/java/org/opendaylight/controller/config/yangjmxgenerator/plugin/gofactory/AbsFactoryGeneratedObjectFactory.java
new file mode 100644 (file)
index 0000000..48a6c15
--- /dev/null
@@ -0,0 +1,183 @@
+/*
+ * 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.yangjmxgenerator.plugin.gofactory;
+
+import static java.lang.String.format;
+
+import com.google.common.base.Optional;
+import java.util.ArrayList;
+import java.util.List;
+import org.opendaylight.controller.config.api.DependencyResolver;
+import org.opendaylight.controller.config.api.DynamicMBeanWithInstance;
+import org.opendaylight.controller.config.api.ModuleIdentifier;
+import org.opendaylight.controller.config.api.annotations.AbstractServiceInterface;
+import org.opendaylight.controller.config.api.annotations.Description;
+import org.opendaylight.controller.config.spi.Module;
+import org.opendaylight.controller.config.spi.ModuleFactory;
+import org.opendaylight.controller.config.yangjmxgenerator.ModuleMXBeanEntry;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.ftl.AbstractFactoryTemplate;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.ftl.TemplateFactory;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.ftl.model.Annotation;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.ftl.model.Field;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.java.FullyQualifiedName;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.java.GeneratedObject;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.java.GeneratedObjectBuilder;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.java.JavaFileInputBuilder;
+import org.opendaylight.controller.config.yangjmxgenerator.plugin.java.TypeName;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.osgi.framework.BundleContext;
+
+public class AbsFactoryGeneratedObjectFactory {
+
+    public GeneratedObject toGeneratedObject(ModuleMXBeanEntry mbe, Optional<String> copyright) {
+        FullyQualifiedName absFactoryFQN = new FullyQualifiedName(mbe.getPackageName(), mbe.getAbstractFactoryName());
+        FullyQualifiedName moduleFQN = new FullyQualifiedName(mbe.getPackageName(), mbe.getStubModuleName());
+        Optional<String> classJavaDoc = Optional.fromNullable(mbe.getNullableDescription());
+
+        AbstractFactoryTemplate abstractFactoryTemplate = TemplateFactory.abstractFactoryTemplateFromMbe(mbe);
+        Optional<String> header = abstractFactoryTemplate.getHeaderString();
+
+        List<FullyQualifiedName> providedServices = new ArrayList<>();
+        for(String providedService: mbe.getProvidedServices().keySet()) {
+            providedServices.add(FullyQualifiedName.fromString(providedService));
+        }
+
+        return toGeneratedObject(absFactoryFQN, copyright,
+                header, classJavaDoc, mbe.getYangModuleQName(),
+                mbe.getGloballyUniqueName(),
+                providedServices,
+                moduleFQN,
+                abstractFactoryTemplate.getFields());
+    }
+
+    public GeneratedObject toGeneratedObject(FullyQualifiedName absFactoryFQN, Optional<String> copyright,
+                                             Optional<String> header, Optional<String> classJavaDoc, QName yangModuleQName,
+                                             String globallyUniqueName,
+                                             List<FullyQualifiedName> providedServices,
+                                             FullyQualifiedName moduleFQN,
+                                             List<Field> moduleFields) {
+        JavaFileInputBuilder b = new JavaFileInputBuilder();
+        Annotation moduleQNameAnnotation = Annotation.createModuleQNameANnotation(yangModuleQName);
+        b.addClassAnnotation(moduleQNameAnnotation);
+
+        b.setFqn(absFactoryFQN);
+        b.setTypeName(TypeName.absClassType);
+
+        b.setCopyright(copyright);
+        b.setHeader(header);
+        b.setClassJavaDoc(classJavaDoc);
+        b.addImplementsFQN(new FullyQualifiedName(ModuleFactory.class));
+        if (classJavaDoc.isPresent()) {
+            b.addClassAnnotation(format("@%s(value=\"%s\")", Description.class.getCanonicalName(), classJavaDoc.get()));
+        }
+
+        b.addToBody(format("public static final java.lang.String NAME = \"%s\";", globallyUniqueName));
+        b.addToBody(format("private static final java.util.Set<Class<? extends %s>> serviceIfcs;",
+                AbstractServiceInterface.class.getCanonicalName()));
+
+        b.addToBody("@Override\n public final String getImplementationName() { \n return NAME; \n}");
+
+        b.addToBody(getServiceIfcsInitialization(providedServices));
+
+        // createModule
+        b.addToBody(format("\n"+
+            "@Override\n"+
+            "public %s createModule(String instanceName, %s dependencyResolver, %s bundleContext) {\n"+
+                "return instantiateModule(instanceName, dependencyResolver, bundleContext);\n"+
+            "}\n",
+                Module.class.getCanonicalName(), DependencyResolver.class.getCanonicalName(), BundleContext.class.getCanonicalName()));
+
+        b.addToBody(getCreateModule(moduleFQN, moduleFields));
+
+        b.addToBody(format("\n"+
+            "public %s instantiateModule(String instanceName, %s dependencyResolver, %s oldModule, %s oldInstance, %s bundleContext) {\n"+
+                "return new %s(new %s(NAME, instanceName), dependencyResolver, oldModule, oldInstance);\n"+
+            "}\n",
+                moduleFQN, DependencyResolver.class.getCanonicalName(), moduleFQN, AutoCloseable.class.getCanonicalName(),
+                BundleContext.class.getCanonicalName(), moduleFQN, ModuleIdentifier.class.getCanonicalName()));
+
+        b.addToBody(format("\n"+
+            "public %s instantiateModule(String instanceName, %s dependencyResolver, %s bundleContext) {\n"+
+                "return new %s(new %s(NAME, instanceName), dependencyResolver);\n"+
+            "}\n", moduleFQN, DependencyResolver.class.getCanonicalName(), BundleContext.class.getCanonicalName(),
+                moduleFQN, ModuleIdentifier.class.getCanonicalName()
+        ));
+
+        b.addToBody(format("\n"+
+            "public %s handleChangedClass(%s old) throws Exception {\n"+
+                "throw new UnsupportedOperationException(\"Class reloading is not supported\");\n"+
+            "}\n", moduleFQN, DynamicMBeanWithInstance.class.getCanonicalName()));
+
+        b.addToBody(format("\n"+
+            "@Override\n"+
+            "public java.util.Set<%s> getDefaultModules(org.opendaylight.controller.config.api.DependencyResolverFactory dependencyResolverFactory, %s bundleContext) {\n"+
+                "return new java.util.HashSet<%s>();\n"+
+            "}\n", moduleFQN, BundleContext.class.getCanonicalName(), moduleFQN));
+
+        return new GeneratedObjectBuilder(b.build()).toGeneratedObject();
+    }
+
+    private static String getCreateModule(FullyQualifiedName moduleFQN, List<Field> moduleFields) {
+        String result = "\n"+
+            "@Override\n"+
+            format("public %s createModule(String instanceName, %s dependencyResolver, %s old, %s bundleContext) throws Exception {\n",
+                                Module.class.getCanonicalName(),DependencyResolver.class.getCanonicalName(),
+                                DynamicMBeanWithInstance.class.getCanonicalName(),BundleContext.class.getCanonicalName())+
+                format("%s oldModule = null;\n",moduleFQN)+
+                "try {\n"+
+                    format("oldModule = (%s) old.getModule();\n",moduleFQN)+
+                "} catch(Exception e) {\n"+
+                    "return handleChangedClass(old);\n"+
+                "}\n"+
+            format("%s module = instantiateModule(instanceName, dependencyResolver, oldModule, old.getInstance(), bundleContext);\n", moduleFQN);
+
+        for(Field field: moduleFields) {
+            result += format("module.set%s(oldModule.get%1$s());\n", field.getName());
+        }
+
+        result += "\n"+
+                "return module;\n"+
+            "}\n";
+        return result;
+    }
+
+    private static String getServiceIfcsInitialization(List<FullyQualifiedName> providedServices) {
+        String generic = format("Class<? extends %s>", AbstractServiceInterface.class.getCanonicalName());
+
+        String result = format("static {\n"+
+            "java.util.Set<%1$s> serviceIfcs2 = new java.util.HashSet<%1$s>();\n", generic);
+
+        for(FullyQualifiedName fqn: providedServices) {
+            result += format("serviceIfcs2.add(%s.class);\n", fqn);
+        }
+        result += "serviceIfcs = java.util.Collections.unmodifiableSet(serviceIfcs2);\n"+
+            "}\n";
+
+        // add isModuleImplementingServiceInterface and getImplementedServiceIntefaces methods
+
+        result += format("\n"+
+            "@Override\n"+
+            "public final boolean isModuleImplementingServiceInterface(Class<? extends %1$s> serviceInterface) {\n"+
+                "for (Class<?> ifc: serviceIfcs) {\n"+
+                    "if (serviceInterface.isAssignableFrom(ifc)){\n"+
+                        "return true;\n"+
+                    "}\n"+
+                "}\n"+
+                "return false;\n"+
+            "}\n"+
+            "\n"+
+            "@Override\n"+
+            "public java.util.Set<Class<? extends %1$s>> getImplementedServiceIntefaces() {\n"+
+                "return serviceIfcs;\n"+
+            "}\n", AbstractServiceInterface.class.getCanonicalName());
+
+        return result;
+    }
+
+}