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.List;
  21 import java.util.Map;
  22 import java.util.Properties;
  23
  24 import junit.framework.TestCase;
  25
  26 import org.wamblee.io.ClassPathResource;
  27 import org.wamblee.system.core.DefaultProvidedInterface;
  28 import org.wamblee.system.core.DefaultRequiredInterface;
  29 import org.wamblee.system.core.DefaultScope;
  30 import org.wamblee.system.core.ProvidedInterface;
  31 import org.wamblee.system.core.RequiredInterface;
  32 import org.wamblee.system.core.Scope;
  33 import org.wamblee.system.core.SystemAssemblyException;
  34 import org.wamblee.test.EventTracker;
  35
  36 public class SpringComponentTest extends TestCase {
  37
  38     private static final String HELLO_SERVICE_SPRING_XML = "test.org.wamblee.system.spring.xml";
  39     private static final String HELLO_SERVICE_SPRING_WITH_REQS_XML = "test.org.wamblee.system.springWithRequirements.xml";
  40     private static final String HELLO_SERVICE_SPRING_WITH_PROPERTIES_XML = "test.org.wamblee.system.springWithProperties.xml";
  41     private static final String HELLO_SERVICE_SPRING_WITH_PROPERTIES_XML2 = "test.org.wamblee.system.springWithProperties2.xml";
  42
  43     private static final String PROPERTY_FILE = "test.org.wamblee.system.spring.properties";
  44
  45     public static EventTracker<String> EVENT_TRACKER;
  46
  47     private Scope externalScope;
  48
  49     @Override
  50     protected void setUp() throws Exception {
  51         super.setUp();
  52         EVENT_TRACKER = new EventTracker<String>();
  53         externalScope = new DefaultScope(new ProvidedInterface[0]);
  54     }
  55
  56     public void testBlackboxSystem() {
  57         SpringComponent system = new SpringComponent("system",
  58                 new String[] { HELLO_SERVICE_SPRING_XML },
  59                 new HashMap<String, ProvidedInterface>(),
  60                 new HashMap<RequiredInterface, String>());
  61
  62         Scope runtime = system.start(externalScope);
  63         assertEquals(0, externalScope.getProvidedInterfaces().size());
  64
  65         system.stop(runtime);
  66     }
  67
  68     public void testOneProvidedService() {
  69         Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
  70         provided.put("helloService", new DefaultProvidedInterface("hello",
  71                 HelloService.class));
  72
  73         SpringComponent system = new SpringComponent("system",
  74                 new String[] { HELLO_SERVICE_SPRING_XML }, provided,
  75                 new HashMap<RequiredInterface, String>());
  76         Scope runtime = system.start(externalScope);
  77         List<ProvidedInterface> services = runtime.getProvidedInterfaces();
  78
  79         assertEquals(1, services.size());
  80         Object service = runtime.getInterfaceImplementation(services.get(0),
  81                 Object.class);
  82         assertTrue(service instanceof HelloService);
  83
  84         // BUG; Provided services should be made available in the external
  85         // scope.
  86         Object service2 = externalScope.getInterfaceImplementation(provided
  87                 .get("helloService"), Object.class);
  88         assertSame(service, service2);
  89
  90         assertEquals("Hello world!", ((HelloService) service).say());
  91         system.stop(runtime);
  92     }
  93
  94     public void testWithProperties() throws IOException {
  95         Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
  96         provided.put("helloService", new DefaultProvidedInterface("hello",
  97                 HelloService.class));
  98         SpringComponent system = new SpringComponent("system",
  99                 new String[] { HELLO_SERVICE_SPRING_WITH_PROPERTIES_XML },
 100                 provided, new HashMap<RequiredInterface, String>());
 101         Properties props = new Properties();
 102         props.load(new ClassPathResource(PROPERTY_FILE).getInputStream());
 103         system.addProperties(props);
 104
 105         Scope scope = system.start(externalScope);
 106         // BUG: Hello service was constructed multiple times. Once with the
 107         // unprocessed property
 108         // and another time with the processed property.
 109         assertEquals(1, EVENT_TRACKER.getEventCount());
 110         List<ProvidedInterface> services = scope.getProvidedInterfaces();
 111         assertEquals("Property Value", scope.getInterfaceImplementation(
 112                 services.get(0), HelloService.class).say());
 113     }
 114
 115     public void testWithPropertiesAsBean() throws IOException {
 116         Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
 117         provided.put("helloService", new DefaultProvidedInterface("hello",
 118                 HelloService2.class));
 119         SpringComponent system = new SpringComponent("system",
 120                 new String[] { HELLO_SERVICE_SPRING_WITH_PROPERTIES_XML2 },
 121                 provided, new HashMap<RequiredInterface, String>());
 122         Properties props = new Properties();
 123         props.load(new ClassPathResource(PROPERTY_FILE).getInputStream());
 124         system.addProperties("properties", props);
 125
 126         Scope scope = system.start(externalScope);
 127
 128         List<ProvidedInterface> services = scope.getProvidedInterfaces();
 129
 130         Properties props2 = scope.getInterfaceImplementation(services.get(0),
 131                 HelloService2.class).getProperties();
 132         assertEquals(props, props2);
 133     }
 134
 135     public void testWithMissingRequirement() {
 136         try {
 137             SpringComponent system = new SpringComponent("system",
 138                     new String[] { HELLO_SERVICE_SPRING_WITH_REQS_XML },
 139                     new HashMap<String, ProvidedInterface>(),
 140                     new HashMap<RequiredInterface, String>());
 141             system.start(externalScope);
 142         } catch (SystemAssemblyException e) {
 143             // e.printStackTrace();
 144             return;
 145         }
 146         fail();
 147     }
 148
 149     public void testWithRequirement() {
 150         Map<RequiredInterface, String> required = new HashMap<RequiredInterface, String>();
 151         required.put(new DefaultRequiredInterface("hello", HelloService.class),
 152                 "helloService");
 153         SpringComponent system = new SpringComponent("system",
 154                 new String[] { HELLO_SERVICE_SPRING_WITH_REQS_XML },
 155                 new HashMap<String, ProvidedInterface>(), required);
 156
 157         HelloService helloObject = new HelloService("ladida");
 158         ProvidedInterface helloService = new DefaultProvidedInterface("hello",
 159                 HelloService.class);
 160         Scope scope = new DefaultScope(new ProvidedInterface[] { helloService });
 161         scope.publishInterface(helloService, helloObject);
 162         system.getRequiredInterfaces().get(0).setProvider(helloService);
 163
 164         Scope runtime = system.start(scope);
 165         system.stop(runtime);
 166     }
 167
 168     public void testWithRequirementAndProvidedService() {
 169         Map<RequiredInterface, String> required = new HashMap<RequiredInterface, String>();
 170         required.put(new DefaultRequiredInterface("hello", HelloService.class),
 171                 "helloService");
 172         Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
 173         provided.put("blaService", new DefaultProvidedInterface("bla",
 174                 BlaService.class));
 175
 176         SpringComponent system = new SpringComponent("system",
 177                 new String[] { HELLO_SERVICE_SPRING_WITH_REQS_XML }, provided,
 178                 required);
 179
 180         HelloService helloObject = new HelloService("ladida");
 181         ProvidedInterface helloService = new DefaultProvidedInterface("hello",
 182                 HelloService.class);
 183         Scope scope = new DefaultScope(new ProvidedInterface[] { helloService });
 184         scope.publishInterface(helloService, helloObject);
 185         system.getRequiredInterfaces().get(0).setProvider(helloService);
 186         Scope runtime = system.start(scope);
 187         ProvidedInterface started = runtime.getProvidedInterfaces().get(0);
 188
 189         Object impl = runtime.getInterfaceImplementation(started,
 190                 BlaService.class);
 191         assertNotNull(impl);
 192         assertTrue(impl instanceof BlaService);
 193         assertEquals("ladida", ((BlaService) impl).execute());
 194         system.stop(runtime);
 195     }
 196
 197     /**
 198      * Tests a scenario where a subclass of SpringComponent adds a new provided
 199      * interface where the interface is provided by the subclass itself and not
 200      * by the spring configs inside.
 201      */
 202     public void testWithProvidedFromSubClassNotFromConfig() {
 203         Map<String, ProvidedInterface> provided = new HashMap<String, ProvidedInterface>();
 204         provided.put("helloService", new DefaultProvidedInterface("hello",
 205                 HelloService.class));
 206
 207         SubSpringComponent system = new SubSpringComponent("system",
 208                 new String[] { HELLO_SERVICE_SPRING_XML }, provided,
 209                 new HashMap<RequiredInterface, String>());
 210
 211         Scope runtime = system.start(externalScope);
 212         List<ProvidedInterface> services = runtime.getProvidedInterfaces();
 213
 214         assertEquals(2, services.size());
 215         Object service = runtime.getInterfaceImplementation(services.get(0),
 216                 Object.class);
 217         assertTrue(service instanceof HelloService);
 218
 219         // BUG; Provided services should be made available in the external
 220         // scope.
 221         Object service2 = externalScope.getInterfaceImplementation(provided
 222                 .get("helloService"), Object.class);
 223         assertSame(service, service2);
 224
 225         Object floatsvc = externalScope.getInterfaceImplementation(system
 226                 .getProvidedInterfaces().get(1), Object.class);
 227         assertTrue(floatsvc instanceof Float);
 228         assertTrue((((Float) floatsvc).floatValue() - 100.345f) < 0.00001);
 229
 230         assertEquals("Hello world!", ((HelloService) service).say());
 231         system.stop(runtime);
 232     }
 233
 234     /**
 235      * Tests the spring component with an additional requirement from the subclass
 236      * which is not required by the spring config files inside.
 237      */
 238     public void testWithRequirementFromSubClass() {
 239         Map<RequiredInterface, String> required = new HashMap<RequiredInterface, String>();
 240         required.put(new DefaultRequiredInterface("hello", HelloService.class),
 241                 "helloService");
 242         SpringComponent system = new SubSpringComponent2("system",
 243                 new String[] { HELLO_SERVICE_SPRING_WITH_REQS_XML },
 244                 new HashMap<String, ProvidedInterface>(), required);
 245
 246         HelloService helloObject = new HelloService("ladida");
 247         ProvidedInterface helloService = new DefaultProvidedInterface("hello",
 248                 HelloService.class);
 249
 250         ProvidedInterface floatService = new DefaultProvidedInterface("float", Float.class);
 251
 252         Scope scope = new DefaultScope(new ProvidedInterface[] { helloService });
 253         scope.publishInterface(helloService, helloObject);
 254         scope.publishInterface(floatService, 100.234f);
 255         system.getRequiredInterfaces().get(0).setProvider(helloService);
 256         system.getRequiredInterfaces().get(1).setProvider(floatService);
 257
 258         Scope runtime = system.start(scope);
 259         system.stop(runtime);
 260
 261         assertEquals(100.234f, ((Float)runtime.get("floatValue")).floatValue(), 0.0001f);
 262     }
 263
 264 }