Examples of org.springframework.core.env.StandardEnvironment

org.springframework.core.env.StandardEnvironment
{@link Environment} implementation suitable for use in 'standard' (i.e. non-web)applications.
In addition to the usual functions of a {@link ConfigurableEnvironment} such asproperty resolution and profile-related operations, this implementation configures two default property sources, to be searched in the following order:
- {@linkplain AbstractEnvironment#getSystemProperties() system properties}
- {@linkplain AbstractEnvironment#getSystemEnvironment() system environment variables}
That is, if the key "xyz" is present both in the JVM system properties as well as in the set of environment variables for the current process, the value of key "xyz" from system properties will return from a call to {@code environment.getProperty("xyz")}. This ordering is chosen by default because system properties are per-JVM, while environment variables may be the same across many JVMs on a given system. Giving system properties precedence allows for overriding of environment variables on a per-JVM basis.
These default property sources may be removed, reordered, or replaced; and additional property sources may be added using the {@link MutablePropertySources}instance available from {@link #getPropertySources()}. See {@link ConfigurableEnvironment} Javadoc for usage examples.
See {@link SystemEnvironmentPropertySource} Javadoc for details on special handlingof property names in shell environments (e.g. Bash) that disallow period characters in variable names. @author Chris Beams @since 3.1 @see ConfigurableEnvironment @see SystemEnvironmentPropertySource @see org.springframework.web.context.support.StandardServletEnvironment

  }


  @Test
  public void testWithActiveProfile() {
    ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(true);
    ConfigurableEnvironment env = new StandardEnvironment();
    env.setActiveProfiles(ProfileAnnotatedComponent.PROFILE_NAME);
    provider.setEnvironment(env);
    Set<BeanDefinition> candidates = provider.findCandidateComponents(TEST_PROFILE_PACKAGE);
    assertThat(containsBeanClass(candidates, ProfileAnnotatedComponent.class), is(true));
  }

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        .addPropertyValue("sex", "${key2}")
        .getBeanDefinition());


    System.setProperty("key1", "systemKey1Value");
    System.setProperty("key2", "systemKey2Value");
    ppc.setEnvironment(new StandardEnvironment());
    ppc.postProcessBeanFactory(bf);
    System.clearProperty("key1");
    System.clearProperty("key2");


    assertThat(bf.getBean(TestBean.class).getName(), is("systemKey1Value"));

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  }


  private void assertSupportForComposedAnnotation(RootBeanDefinition beanDefinition) {
    beanFactory.registerBeanDefinition("config", beanDefinition);
    ConfigurationClassPostProcessor pp = new ConfigurationClassPostProcessor();
    pp.setEnvironment(new StandardEnvironment());
    pp.postProcessBeanFactory(beanFactory);
    SimpleComponent simpleComponent = beanFactory.getBean(SimpleComponent.class);
    assertNotNull(simpleComponent);
  }

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  }


  private void assertSupportForComposedAnnotationWithExclude(RootBeanDefinition beanDefinition) {
    beanFactory.registerBeanDefinition("config", beanDefinition);
    ConfigurationClassPostProcessor pp = new ConfigurationClassPostProcessor();
    pp.setEnvironment(new StandardEnvironment());
    pp.postProcessBeanFactory(beanFactory);
    try {
      beanFactory.getBean(SimpleComponent.class);
      fail("Should have thrown NoSuchBeanDefinitionException");
    }

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    }
  }


  @Test(expected=IllegalArgumentException.class)
  public void testStrictSystemPropertyReplacement() {
    PropertyEditor editor = new ResourceEditor(new DefaultResourceLoader(), new StandardEnvironment(), false);
    System.setProperty("test.prop", "foo");
    try {
      editor.setAsText("${test.prop}-${bar}");
      Resource resolved = (Resource) editor.getValue();
      assertEquals("foo-${bar}", resolved.getFilename());

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  }


  @Test(expected=IllegalArgumentException.class)
  public void testStrictSystemPropertyReplacement() {
    PropertyEditor editor = new ResourceArrayPropertyEditor(
        new PathMatchingResourcePatternResolver(), new StandardEnvironment(),
        false);
    System.setProperty("test.prop", "foo");
    try {
      editor.setAsText("${test.prop}-${bar}");
      Resource[] resources = (Resource[]) editor.getValue();

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    Map<String, Object> values = new HashMap<String, Object>();
    for (String name : nakedPS.getPropertyNames()) {
      values.put(fullyQualifiedKey(moduleDefinition, name), nakedPS.getProperty(name));
    }
    EnumerablePropertySource<?> modulePS = new MapPropertySource(propertySourceName, values);
    ConfigurableEnvironment moduleEnvironment = new StandardEnvironment();
    // Append the rootEnvironment
    moduleEnvironment.merge(rootEnvironment);
    // The global environment has been loaded by boot too and
    // its PS of interest was also named "applicationConfigurationProperties"
    moduleEnvironment.getPropertySources().addBefore(APPLICATION_CONFIGURATION_PROPERTIES, modulePS);
    return moduleEnvironment;
  }

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  /**
   * Construct a new environment and use Spring Boot to populate its property sources using
   * {@link ConfigFileApplicationListener}.
   */
  private ConfigurableEnvironment loadPropertySources(final String searchLocation, final String baseName) {
    final ConfigurableEnvironment environment = new StandardEnvironment();
    environment.merge(parentEnvironment);
    new ConfigFileApplicationListener() {


      public void apply() {
        setSearchLocations(searchLocation);
        // We'd like to do 'setSearchNames(baseName)', but the environment property
        // has strong precedence and is already set for XD_CONFIG_NAME.
        Map<String, Object> singletonMap = Collections.singletonMap("spring.config.name",
            (Object) baseName);
        environment.getPropertySources().addFirst(
            new MapPropertySource("searchNamesOverride", singletonMap));
        addPropertySources(environment, resourceLoader);
      }
    }.apply();
    return environment;

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      return this.environment;
    }
    if (this.webEnvironment) {
      return new StandardServletEnvironment();
    }
    return new StandardEnvironment();


  }

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  @Test
  public void customEnvironment() throws Exception {
    TestSpringApplication application = new TestSpringApplication(ExampleConfig.class);
    application.setWebEnvironment(false);
    ConfigurableEnvironment environment = new StandardEnvironment();
    application.setEnvironment(environment);
    application.run();
    verify(application.getLoader()).setEnvironment(environment);
  }

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