wamblee.org Git - utils/blob - system/spring/src/test/java/org/wamblee/system/spring/SpringComponentTest.java

   1 /*
   2  * Copyright 2007 the original author or authors.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.wamblee.system.spring;
  17
  18 import java.io.IOException;
  19 import java.util.HashMap;
  20 import java.util.Map;
  21 import java.util.Properties;
  22
  23 import junit.framework.TestCase;
  24
  25 import org.wamblee.io.ClassPathResource;
  26 import org.wamblee.system.core.DefaultProvidedInterface;
  27 import org.wamblee.system.core.DefaultRequiredInterface;
  28 import org.wamblee.system.core.DefaultScope;
  29 import org.wamblee.system.core.ProvidedInterface;
  30 import org.wamblee.system.core.RequiredInterface;
  31 import org.wamblee.system.core.Scope;
  32 import org.wamblee.system.core.SystemAssemblyException;
  33 import org.wamblee.test.EventTracker;
  34
  35 public class SpringComponentTest extends TestCase {
  36
  37         private static final String HELLO_SERVICE_SPRING_XML = "test.org.wamblee.system.spring.xml";
  38         private static final String HELLO_SERVICE_SPRING_WITH_REQS_XML = "test.org.wamblee.system.springWithRequirements.xml";
  39         private static final String HELLO_SERVICE_SPRING_WITH_PROPERTIES_XML = "test.org.wamblee.system.springWithProperties.xml";
  40         private static final String PROPERTY_FILE = "test.org.wamblee.system.spring.properties";
  41
  42         public static EventTracker<String> EVENT_TRACKER;
  43
  44         private Scope _externalScope;
  45
  46         @Override
  47         protected void setUp() throws Exception {
  48                 super.setUp();
  49                 EVENT_TRACKER = new EventTracker<String>();
  50                 _externalScope = new DefaultScope(new ProvidedInterface[0]);
  51         }
  52
  53         public void testBlackboxSystem() {
  54                 SpringComponent system = new SpringComponent("system",
  55                                 new String[] { HELLO_SERVICE_SPRING_XML },
  56                                 new HashMap<String, ProvidedInterface>(),
  57                                 new HashMap<RequiredInterface, String>());
  58
  59                 Scope runtime = system.start(_externalScope);
  60                 assertEquals(0, _externalScope.getProvidedInterfaces().length);
  61
  62                 system.stop(runtime);
  63         }
  64
  65         public void testOneProvidedService() {
  66                 Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
  67                 provided.put("helloService", new DefaultProvidedInterface("hello",
  68                                 HelloService.class));
  69
  70                 SpringComponent system = new SpringComponent("system",
  71                                 new String[] { HELLO_SERVICE_SPRING_XML }, provided,
  72                                 new HashMap<RequiredInterface, String>());
  73                 Scope runtime = system.start(_externalScope);
  74                 ProvidedInterface[] services = runtime.getProvidedInterfaces();
  75
  76                 assertEquals(1, services.length);
  77                 Object service = runtime.getInterfaceImplementation(services[0], Object.class);
  78                 assertTrue(service instanceof HelloService);
  79
  80                 // BUG; Provided services should be made available in the external scope.
  81                 Object service2 = _externalScope.getInterfaceImplementation(provided.get("helloService"), Object.class);
  82                 assertSame(service, service2);
  83
  84                 assertEquals("Hello world!", ((HelloService) service).say());
  85                 system.stop(runtime);
  86         }
  87
  88         public void testWithProperties() throws IOException {
  89                 Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
  90                 provided.put("helloService", new DefaultProvidedInterface("hello",
  91                                 HelloService.class));
  92                 SpringComponent system = new SpringComponent("system",
  93                                 new String[] { HELLO_SERVICE_SPRING_WITH_PROPERTIES_XML },
  94                                 provided, new HashMap<RequiredInterface, String>());
  95                 Properties props = new Properties();
  96                 props.load(new ClassPathResource(PROPERTY_FILE).getInputStream());
  97                 system.addProperties(props);
  98
  99                 Scope scope = system.start(_externalScope);
 100                 // BUG: Hello service was constructed multiple times. Once with the unprocessed property
 101                 // and another time with the processed property.
 102                 assertEquals(1, EVENT_TRACKER.getEventCount());
 103                 ProvidedInterface[] services = scope.getProvidedInterfaces();
 104                 assertEquals("Property Value", scope.getInterfaceImplementation(services[0], HelloService.class).say());
 105         }
 106
 107         public void testWithMissingRequirement() {
 108                 try {
 109                         SpringComponent system = new SpringComponent("system",
 110                                         new String[] { HELLO_SERVICE_SPRING_WITH_REQS_XML },
 111                                         new HashMap<String, ProvidedInterface>(),
 112                                         new HashMap<RequiredInterface, String>());
 113                         system.start(_externalScope);
 114                 } catch (SystemAssemblyException e) {
 115                         // e.printStackTrace();
 116                         return;
 117                 }
 118                 fail();
 119         }
 120
 121         public void testWithRequirement() {
 122                 Map<RequiredInterface, String> required = new HashMap<RequiredInterface, String>();
 123                 required.put(new DefaultRequiredInterface("hello", HelloService.class),
 124                                 "helloService");
 125                 SpringComponent system = new SpringComponent("system",
 126                                 new String[] { HELLO_SERVICE_SPRING_WITH_REQS_XML },
 127                                 new HashMap<String, ProvidedInterface>(), required);
 128
 129                 HelloService helloObject = new HelloService("ladida");
 130                 ProvidedInterface helloService = new DefaultProvidedInterface("hello",
 131                                 HelloService.class);
 132                 Scope scope = new DefaultScope(new ProvidedInterface[]{ helloService });
 133                 scope.publishInterface(helloService, helloObject);
 134                 system.getRequiredInterfaces()[0].setProvider(helloService);
 135
 136                 Scope runtime = system.start(scope);
 137                 system.stop(runtime);
 138         }
 139
 140         public void testWithRequirementAndProvidedService() {
 141                 Map<RequiredInterface, String> required = new HashMap<RequiredInterface, String>();
 142                 required.put(new DefaultRequiredInterface("hello", HelloService.class),
 143                                 "helloService");
 144                 Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
 145                 provided.put("blaService", new DefaultProvidedInterface("bla",
 146                                 BlaService.class));
 147
 148                 SpringComponent system = new SpringComponent("system",
 149                                 new String[] { HELLO_SERVICE_SPRING_WITH_REQS_XML }, provided,
 150                                 required);
 151
 152                 HelloService helloObject = new HelloService("ladida");
 153                 ProvidedInterface helloService = new DefaultProvidedInterface("hello",
 154                                 HelloService.class);
 155                 Scope scope = new DefaultScope(new ProvidedInterface[] {  helloService });
 156                 scope.publishInterface(helloService, helloObject);
 157                 system.getRequiredInterfaces()[0].setProvider(helloService);
 158                 Scope runtime = system.start(scope);
 159                 ProvidedInterface started = runtime.getProvidedInterfaces()[0];
 160
 161                 Object impl = runtime.getInterfaceImplementation(started, BlaService.class);
 162                 assertNotNull(impl);
 163                 assertTrue(impl instanceof BlaService);
 164                 assertEquals("ladida", ((BlaService)impl).execute());
 165                 system.stop(runtime);
 166         }
 167
 168 }