1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * 
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * The contents of this file are subject to the terms of either the Universal Permissive License
   7  * v 1.0 as shown at http://oss.oracle.com/licenses/upl
   8  *
   9  * or the following license:
  10  *
  11  * Redistribution and use in source and binary forms, with or without modification, are permitted
  12  * provided that the following conditions are met:
  13  * 
  14  * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
  15  * and the following disclaimer.
  16  * 
  17  * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
  18  * conditions and the following disclaimer in the documentation and/or other materials provided with
  19  * the distribution.
  20  * 
  21  * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
  22  * endorse or promote products derived from this software without specific prior written permission.
  23  * 
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  26  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
  31  * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33 package org.openjdk.jmc.rjmx.test.subscription.internal;
  34 
  35 import java.util.Observer;
  36 
  37 import org.openjdk.jmc.rjmx.IConnectionHandle;
  38 import org.openjdk.jmc.rjmx.IServerDescriptor;
  39 import org.openjdk.jmc.rjmx.ServiceNotAvailableException;
  40 import org.openjdk.jmc.rjmx.internal.ServerDescriptor;
  41 import org.openjdk.jmc.rjmx.services.internal.ServiceFactoryManager;
  42 import org.openjdk.jmc.rjmx.subscription.IMRIMetadata;
  43 import org.openjdk.jmc.rjmx.subscription.IMRIMetadataService;
  44 import org.openjdk.jmc.rjmx.subscription.MRI;
  45 import org.openjdk.jmc.rjmx.subscription.internal.MRIMetadataWrapper;
  46 
  47 @SuppressWarnings("nls")
  48 public class DummyConnectionHandle implements IConnectionHandle {
  49         private final IServerDescriptor serverDescriptor = new ServerDescriptor();
  50 
  51         public DummyConnectionHandle() {
  52         }
  53 
  54         @Override
  55         public <T> T getServiceOrDummy(Class<T> serviceInterface) {
  56                 if (!serviceInterface.isInterface()) {
  57                         /*
  58                          * If you get this, you need to call createServiceOrNull() instead and handle the null
  59                          * case. (And yes, we want to check this before attempting to create a service. Ideally,
  60                          * we would like to check this at compile time, but there was no way to do that yet. JSR
  61                          * 308 and the Checker Framework should change that.)
  62                          */
  63                         throw new IllegalArgumentException("Will not be able to create dummy implementations of " //$NON-NLS-1$
  64                                         + serviceInterface.getName() + " since the service is not an interface"); //$NON-NLS-1$
  65                 }
  66                 T service = getServiceOrNull(serviceInterface);
  67                 if (service == null) {
  68                         service = ServiceFactoryManager.createDummyService(serviceInterface, null);
  69                 }
  70                 return service;
  71         }
  72 
  73         @Override
  74         public <T> T getServiceOrNull(Class<T> serviceClass) {
  75                 if (serviceClass == IMRIMetadataService.class) {
  76                         @SuppressWarnings("unchecked")
  77                         T attributeInfoService = (T) new IMRIMetadataService() {
  78 
  79                                 @Override
  80                                 public IMRIMetadata getMetadata(MRI descriptor) {
  81                                         return new MRIMetadataWrapper(descriptor, this);
  82                                 }
  83 
  84                                 @Override
  85                                 public Object getMetadata(MRI descriptor, String dataKey) {
  86                                         return null;
  87                                 }
  88 
  89                                 @Override
  90                                 public void setMetadata(MRI descriptor, String dataKey, String data) {
  91                                         throw new UnsupportedOperationException();
  92                                 }
  93 
  94                                 @Override
  95                                 public void addObserver(Observer o) {
  96                                         throw new UnsupportedOperationException();
  97                                 }
  98 
  99                                 @Override
 100                                 public void deleteObserver(Observer o) {
 101                                         throw new UnsupportedOperationException();
 102                                 }
 103 
 104                         };
 105                         return attributeInfoService;
 106                 }
 107                 return null;
 108         }
 109 
 110         @Override
 111         public boolean hasService(Class<?> serviceClass) {
 112                 return (serviceClass == IMRIMetadataService.class);
 113         }
 114 
 115         @Override
 116         public boolean isConnected() {
 117                 return true;
 118         }
 119 
 120         @Override
 121         public String getDescription() {
 122                 return "Dummy"; //$NON-NLS-1$
 123         }
 124 
 125         @Override
 126         public void close() {
 127 
 128         }
 129 
 130         @Override
 131         public IServerDescriptor getServerDescriptor() {
 132                 return serverDescriptor;
 133         }
 134 
 135         @Override
 136         public <T> T getServiceOrThrow(Class<T> serviceClass) throws ServiceNotAvailableException {
 137                 T service = getServiceOrNull(serviceClass);
 138                 if (service == null) {
 139                         throw new ServiceNotAvailableException("Service '" + serviceClass.getName() + "' is not available!");
 140                 }
 141                 return service;
 142         }
 143 }