Coverage Report - org.mule.module.guice.GuiceRegistry
 
Classes in this File Line Coverage Branch Coverage Complexity
GuiceRegistry
0%
0/35
0%
0/10
0
 
 1  
 /*
 2  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 3  
  * The software in this package is published under the terms of the CPAL v1.0
 4  
  * license, a copy of which has been included with this distribution in the
 5  
  * LICENSE.txt file.
 6  
  */
 7  
 package org.mule.module.guice;
 8  
 
 9  
 import org.mule.api.MuleContext;
 10  
 import org.mule.api.lifecycle.InitialisationException;
 11  
 import org.mule.api.registry.RegistrationException;
 12  
 import org.mule.config.i18n.MessageFactory;
 13  
 import org.mule.registry.AbstractRegistry;
 14  
 
 15  
 import com.google.inject.Binding;
 16  
 import com.google.inject.Injector;
 17  
 import com.google.inject.Key;
 18  
 import com.google.inject.TypeLiteral;
 19  
 import com.google.inject.name.Named;
 20  
 
 21  
 import java.util.Collection;
 22  
 import java.util.Collections;
 23  
 import java.util.List;
 24  
 import java.util.Map;
 25  
 
 26  
 import org.guiceyfruit.Injectors;
 27  
 import org.guiceyfruit.support.CloseFailedException;
 28  
 
 29  
 /**
 30  
  * The internal Mule interface for retreiving objects from a Guice injector.  This registry is read-only since all
 31  
  * objects should be configured by {@link com.google.inject.Module} objects.  The lifecycle of objects will be
 32  
  * managed by Mule since Guice does not provide lifecycle support.
 33  
  * <p/>
 34  
  * To create modules extend the {@link org.mule.module.guice.AbstractMuleGuiceModule} since it provides hooks and helpers for
 35  
  * working with Mule configuration.  Any modules independent of Mule can just extend the Guice {@link com.google.inject.AbstractModule}
 36  
  * as normal.
 37  
  * <p/>
 38  
  * Mule will discover modules on the classpath, if you need to configure a module before passing it to the Guice injector you
 39  
  * need to implement a {@link org.mule.module.guice.GuiceModuleFactory} for your module.
 40  
  *
 41  
  * @see org.mule.module.guice.AbstractMuleGuiceModule
 42  
  * @see org.mule.module.guice.GuiceModuleFactory
 43  
  */
 44  
 public class GuiceRegistry extends AbstractRegistry
 45  
 {
 46  0
     private Injector injector = null;
 47  
 
 48  
     public GuiceRegistry(MuleContext muleContext)
 49  
     {
 50  0
         super("guice", muleContext);
 51  0
     }
 52  
 
 53  
 
 54  
     GuiceRegistry(Injector injector, MuleContext muleContext)
 55  
     {
 56  0
         this(muleContext);
 57  0
         this.injector = injector;
 58  0
     }
 59  
 
 60  
     protected void doInitialise() throws InitialisationException
 61  
     {
 62  
         //do nothing
 63  0
     }
 64  
 
 65  
     protected void doDispose()
 66  
     {
 67  
         try
 68  
         {
 69  0
             Injectors.close(injector);
 70  
         }
 71  0
         catch (CloseFailedException e)
 72  
         {
 73  0
             logger.error("Failed to close the Guice registry cleanly", e);
 74  0
         }
 75  0
     }
 76  
 
 77  
     public <T> T lookupObject(String key)
 78  
     {
 79  
         //Guice isn't really supposed to work this way but in Mule we need to look up objects by name only sometimes
 80  0
         for (Map.Entry<Key<?>, Binding<?>> entry : injector.getBindings().entrySet())
 81  
         {
 82  0
             if (entry.getKey().getAnnotation() instanceof Named)
 83  
             {
 84  0
                 String name = ((Named) entry.getKey().getAnnotation()).value();
 85  0
                 if (name.equals(key))
 86  
                 {
 87  0
                     Object o = entry.getValue().getProvider().get();
 88  0
                     return (T) o;
 89  
                 }
 90  0
             }
 91  
         }
 92  0
         return null;
 93  
     }
 94  
 
 95  
     @Override
 96  
     public <T> T lookupObject(Class<T> type) throws RegistrationException
 97  
     {
 98  
         //We have to loop through all objects since Guice will act as a factory and create a binding for the given class
 99  
         //if one is not bound in the registry.
 100  0
         List<Binding<T>> bindings = injector.findBindingsByType(TypeLiteral.get(type));
 101  0
         if(bindings.size()==0)
 102  
         {
 103  0
             return null;
 104  
 
 105  
         }
 106  0
         else if (bindings.size()==1)
 107  
         {
 108  0
             return bindings.get(0).getProvider().get();
 109  
         }
 110  
         else
 111  
         {
 112  0
             throw new RegistrationException(MessageFactory.createStaticMessage("More than one object of type: " + type + ", was found"));
 113  
         }
 114  
     }
 115  
 
 116  
     public <T> Map<String, T> lookupByType(Class<T> type)
 117  
     {
 118  
 
 119  
 
 120  0
         return Collections.EMPTY_MAP;
 121  
 //        try
 122  
 //        {
 123  
 //            List<Binding<T>> bindings = injector.findBindingsByType(TypeLiteral.get(type));
 124  
 //            if(bindings!=null && bindings.size()>0)
 125  
 //            {
 126  
 //                Map<String, T> map = new HashMap<String, T>(bindings.size());
 127  
 //                String name;
 128  
 //                T object;
 129  
 //                for (Binding<T> binding : bindings)
 130  
 //                {
 131  
 //                    object = binding.getProvider().get();
 132  
 //
 133  
 //                    if(binding.getKey().getAnnotation() instanceof Named)
 134  
 //                    {
 135  
 //                        name = ((Named)binding.getKey().getAnnotation()).value();
 136  
 //                    }
 137  
 //                    else if(object instanceof NamedObject)
 138  
 //                    {
 139  
 //                        name = ((NamedObject)object).getName();
 140  
 //                    }
 141  
 //                    else
 142  
 //                    {
 143  
 //                        name = "_" + object.hashCode();
 144  
 //                    }
 145  
 //                    map.put(name, object);
 146  
 //                }
 147  
 //                return map;
 148  
 //            }
 149  
 //            return Collections.emptyMap();
 150  
 //        }
 151  
 //        catch (ConfigurationException e)
 152  
 //        {
 153  
 //            return Collections.emptyMap();
 154  
 //        }
 155  
     }
 156  
 
 157  
     public <T> Collection<T> lookupObjects(Class<T> type)
 158  
     {
 159  0
         return Collections.emptyList();
 160  
 
 161  
 //        try
 162  
 //        {
 163  
 //            List<Binding<T>> bindings = injector.findBindingsByType(TypeLiteral.get(type));
 164  
 //            if(bindings!=null && bindings.size()>0)
 165  
 //            {
 166  
 //                List<T> list = new ArrayList<T>(bindings.size());
 167  
 //                for (Binding<T> binding : bindings)
 168  
 //                {
 169  
 //                    list.add(binding.getProvider().get());
 170  
 //                }
 171  
 //                return list;
 172  
 //            }
 173  
 //            return Collections.emptyList();
 174  
 //        }
 175  
 //        catch (ConfigurationException e)
 176  
 //        {
 177  
 //            return Collections.emptyList();
 178  
 //        }
 179  
     }
 180  
 
 181  
     public void registerObject(String key, Object value) throws RegistrationException
 182  
     {
 183  0
         throw new UnsupportedOperationException("registerObject");
 184  
     }
 185  
 
 186  
     public void registerObject(String key, Object value, Object metadata) throws RegistrationException
 187  
     {
 188  0
         throw new UnsupportedOperationException("registerObject");
 189  
     }
 190  
 
 191  
     public void registerObjects(Map objects) throws RegistrationException
 192  
     {
 193  0
         throw new UnsupportedOperationException("registerObjects");
 194  
     }
 195  
 
 196  
     public void unregisterObject(String key) throws RegistrationException
 197  
     {
 198  0
         throw new UnsupportedOperationException("unregisterObject");
 199  
     }
 200  
 
 201  
     public void unregisterObject(String key, Object metadata) throws RegistrationException
 202  
     {
 203  0
         throw new UnsupportedOperationException("unregisterObject");
 204  
     }
 205  
 
 206  
     public boolean isReadOnly()
 207  
     {
 208  0
         return true;
 209  
     }
 210  
 
 211  
     public boolean isRemote()
 212  
     {
 213  0
         return false;
 214  
     }
 215  
 }