binding2/mdsal-binding2-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/adapter/impl/operation/invoker/ClassBasedOperationServiceInvoker.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.mdsal.binding.javav2.dom.adapter.impl.operation.invoker;
   9
  10 import com.google.common.annotations.Beta;
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.cache.CacheBuilder;
  13 import com.google.common.cache.CacheLoader;
  14 import com.google.common.cache.LoadingCache;
  15 import java.lang.reflect.Method;
  16 import java.util.HashMap;
  17 import java.util.Map;
  18 import javax.annotation.Nonnull;
  19 import org.opendaylight.mdsal.binding.javav2.generator.util.JavaIdentifier;
  20 import org.opendaylight.mdsal.binding.javav2.generator.util.JavaIdentifierNormalizer;
  21 import org.opendaylight.mdsal.binding.javav2.runtime.reflection.BindingReflections;
  22 import org.opendaylight.mdsal.binding.javav2.spec.base.Operation;
  23 import org.opendaylight.yangtools.yang.common.QName;
  24
  25 @Beta
  26 final class ClassBasedOperationServiceInvoker extends AbstractMappedOperationInvoker<String> {
  27
  28     private static final LoadingCache<Class<? extends Operation>, OperationServiceInvoker> INVOKERS = CacheBuilder
  29             .newBuilder().weakKeys().build(new CacheLoader<Class<? extends Operation>, OperationServiceInvoker>() {
  30                 @Nonnull
  31                 @Override
  32                 public OperationServiceInvoker load(@Nonnull final Class<? extends Operation> key) {
  33                     final Map<String, Method> ret = new HashMap<>();
  34                     for (final Method m : key.getMethods()) {
  35                         ret.put(m.getName(), m);
  36                     }
  37
  38                     return new ClassBasedOperationServiceInvoker(ret);
  39                 }
  40             });
  41
  42     ClassBasedOperationServiceInvoker(final Map<String, Method> ret) {
  43         super(ret);
  44     }
  45
  46     @Override
  47     protected String qnameToKey(final QName qname) {
  48         return JavaIdentifierNormalizer.normalizeSpecificIdentifier(qname.getLocalName(), JavaIdentifier.METHOD);
  49     }
  50
  51     static OperationServiceInvoker instanceFor(final Class<? extends Operation> type) {
  52         Preconditions.checkArgument(type.isInterface());
  53         Preconditions.checkArgument(BindingReflections.isBindingClass(type));
  54         return INVOKERS.getUnchecked(type);
  55     }
  56 }