Clover coverage report - Code Coverage for hivemind release 1.1-alpha-1
Coverage timestamp: Tue Jan 18 2005 07:55:08 EST
file stats: LOC: 125   Methods: 4
NCLOC: 69   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
ProxyBuilder.java 100% 100% 100% 100%
coverage
 1   
 // Copyright 2004, 2005 The Apache Software Foundation
 2   
 //
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 // Licensed under the Apache License, Version 2.0 (the "License");
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 // you may not use this file except in compliance with the License.
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 // You may obtain a copy of the License at
 6   
 //
 7   
 //     http://www.apache.org/licenses/LICENSE-2.0
 8   
 //
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 // Unless required by applicable law or agreed to in writing, software
 10   
 // distributed under the License is distributed on an "AS IS" BASIS,
 11   
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12   
 // See the License for the specific language governing permissions and
 13   
 // limitations under the License.
 14   
 
 15   
 package org.apache.hivemind.impl;
 16   
 
 17   
 import java.io.Serializable;
 18   
 import java.lang.reflect.Modifier;
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 20   
 import org.apache.hivemind.internal.Module;
 21   
 import org.apache.hivemind.internal.ServicePoint;
 22   
 import org.apache.hivemind.internal.ser.ServiceSerializationHelper;
 23   
 import org.apache.hivemind.service.BodyBuilder;
 24   
 import org.apache.hivemind.service.ClassFab;
 25   
 import org.apache.hivemind.service.ClassFabUtils;
 26   
 import org.apache.hivemind.service.ClassFactory;
 27   
 import org.apache.hivemind.service.MethodIterator;
 28   
 import org.apache.hivemind.service.MethodSignature;
 29   
 
 30   
 /**
 31   
  * Class used to assist service extension points in creating proxies.
 32   
  * 
 33   
  * @author Howard Lewis Ship
 34   
  */
 35   
 public final class ProxyBuilder
 36   
 {
 37   
     private ServicePoint _point;
 38   
 
 39   
     private Class _serviceInterface;
 40   
 
 41   
     private ClassFab _classFab;
 42   
 
 43   
     private String _type;
 44   
 
 45   
     /**
 46   
      * Constructs a new builder. The type will be incorporated into value returned by the
 47   
      * <code>toString()</code> method. The service extension point is used to identify the service
 48   
      * interface and service id.
 49   
      */
 50  1425
     public ProxyBuilder(String type, ServicePoint point)
 51   
     {
 52  1425
         _point = point;
 53  1425
         _type = type;
 54  1425
         _serviceInterface = point.getServiceInterface();
 55   
 
 56  1425
         Module module = point.getModule();
 57  1425
         ClassFactory factory = (ClassFactory) module.getService(
 58   
                 "hivemind.ClassFactory",
 59   
                 ClassFactory.class);
 60   
 
 61  1425
         _classFab = factory.newClass(
 62   
                 ClassFabUtils.generateClassName(_serviceInterface),
 63   
                 Object.class);
 64   
 
 65  1425
         _classFab.addInterface(_serviceInterface);
 66   
 
 67  1425
         addSerializable(point.getExtensionPointId());
 68   
     }
 69   
 
 70   
     /** @since 1.1 */
 71  1425
     private void addSerializable(String pointId)
 72   
     {
 73  1425
         _classFab.addInterface(Serializable.class);
 74   
 
 75  1425
         BodyBuilder bb = new BodyBuilder();
 76   
 
 77  1425
         bb.add(
 78   
                 "return {0}.getServiceSerializationSupport().getServiceTokenForService(\"{1}\");",
 79   
                 ServiceSerializationHelper.class.getName(),
 80   
                 pointId);
 81   
 
 82  1425
         MethodSignature sig = new MethodSignature(Object.class, "writeReplace", null, null);
 83   
 
 84  1425
         _classFab.addMethod(Modifier.PRIVATE, sig, bb.toString());
 85   
     }
 86   
 
 87  1425
     public ClassFab getClassFab()
 88   
     {
 89  1425
         return _classFab;
 90   
     }
 91   
 
 92   
     /**
 93   
      * Creates the service methods for the class.
 94   
      * 
 95   
      * @param indirection
 96   
      *            the name of a variable, or a method invocation snippet, used to redirect the
 97   
      *            invocation on the proxy to the actual service implementation.
 98   
      */
 99  1425
     public void addServiceMethods(String indirection)
 100   
     {
 101  1425
         BodyBuilder builder = new BodyBuilder();
 102   
 
 103  1425
         MethodIterator mi = new MethodIterator(_serviceInterface);
 104   
 
 105  1425
         while (mi.hasNext())
 106   
         {
 107  1648
             MethodSignature m = mi.next();
 108   
 
 109  1648
             builder.clear();
 110  1648
             builder.begin();
 111  1648
             builder.add("return ($r) ");
 112  1648
             builder.add(indirection);
 113  1648
             builder.add(".");
 114  1648
             builder.add(m.getName());
 115  1648
             builder.addln("($$);");
 116  1648
             builder.end();
 117   
 
 118  1648
             _classFab.addMethod(Modifier.PUBLIC, m, builder.toString());
 119   
         }
 120   
 
 121  1425
         if (!mi.getToString())
 122  1423
             ClassFabUtils.addToStringMethod(_classFab, "<" + _type + " for "
 123   
                     + _point.getExtensionPointId() + "(" + _serviceInterface.getName() + ")>");
 124   
     }
 125   
 }