Java Config类代码示例

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Override
public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {
    DeploymentUnit deploymentUnit = phaseContext.getDeploymentUnit();
    Module module = deploymentUnit.getAttachment(Attachments.MODULE);

    WildFlyConfigBuilder builder = new WildFlyConfigBuilder();
    builder.forClassLoader(module.getClassLoader())
            .addDefaultSources()
            .addDiscoveredSources()
            .addDiscoveredConverters();
    addConfigSourcesFromServices(builder, phaseContext.getServiceRegistry(), module.getClassLoader());
    Config config = builder.build();

    WildFlyConfigProviderResolver.INSTANCE.registerConfig(config, module.getClassLoader());

    if (WeldDeploymentMarker.isPartOfWeldDeployment(deploymentUnit)) {
        WeldPortableExtensions extensions = WeldPortableExtensions.getPortableExtensions(deploymentUnit);
        extensions.registerExtensionInstance(new ConfigExtension(), deploymentUnit);
    }

}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Override
public Config build() {
    if (addDiscoveredSources) {
        sources.addAll(discoverSources());
    }
    if (addDefaultSources) {
        sources.addAll(getDefaultSources());
    }

    if (addDiscoveredConverters) {
        converters.addAll(discoverConverters());
    }

    Collections.sort(sources, new Comparator<ConfigSource>() {
        @Override
        public int compare(ConfigSource o1, ConfigSource o2) {
            return o2.getOrdinal() -  o1.getOrdinal();
        }
    });

    return new WildFlyConfig(sources, converters);
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
private <T> T getValue
        (InjectionPoint injectionPoint, Class<T> target) {
    Config config = getConfig(injectionPoint);
    String name = getName(injectionPoint);
    try {
        if (name == null) {
            return null;
        }
        Optional<T> optionalValue = config.getOptionalValue(name, target);
        if (optionalValue.isPresent()) {
            return optionalValue.get();
        } else {
            String defaultValue = getDefaultValue(injectionPoint);
            if (defaultValue != null) {
                return ((WildFlyConfig)config).convert(defaultValue, target);
            } else {
                return null;
            }
        }
    } catch (RuntimeException e) {
        return null;
    }
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
public void validate(@Observes AfterDeploymentValidation add, BeanManager bm) {
    List<String> deploymentProblems = new ArrayList<>();

    Config config = ConfigProvider.getConfig();
    for (InjectionPoint injectionPoint : injectionPoints) {
        Type type = injectionPoint.getType();
        ConfigProperty configProperty = injectionPoint.getAnnotated().getAnnotation(ConfigProperty.class);
        if (type instanceof Class) {
            String key = getConfigKey(injectionPoint, configProperty);

            if (!config.getOptionalValue(key, (Class)type).isPresent()) {
                String defaultValue = configProperty.defaultValue();
                if (defaultValue == null ||
                        defaultValue.equals(ConfigProperty.UNCONFIGURED_VALUE)) {
                    deploymentProblems.add("No Config Value exists for " + key);
                }
            }
        }
    }

    if (!deploymentProblems.isEmpty()) {
        add.addDeploymentProblem(new DeploymentException("Error while validating Configuration\n"
                + String.join("\n", deploymentProblems)));
    }

}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Test
public void testDonaldConversionWithMultipleLambdaConverters() {
    // defines 2 config with the lambda converters defined in different orders.
    // Order must not matter, the lambda with the upper case must always be used as it has the highest priority
    Config config1 = ConfigProviderResolver.instance().getBuilder().addDefaultSources()
        .withConverter(Donald.class, 101, (s) -> Donald.iLikeDonald(s.toUpperCase()))
        .withConverter(Donald.class, 100, (s) -> Donald.iLikeDonald(s))
        .build();
    Config config2 = ConfigProviderResolver.instance().getBuilder().addDefaultSources()
        .withConverter(Donald.class, 100, (s) -> Donald.iLikeDonald(s))
        .withConverter(Donald.class, 101, (s) -> Donald.iLikeDonald(s.toUpperCase()))
        .build();

    Donald donald = config1.getValue("tck.config.test.javaconfig.converter.donaldname", Donald.class);
    Assert.assertNotNull(donald);
    Assert.assertEquals(donald.getName(), "DUCK",
        "The converter with the highest priority (using upper case) must be used.");
    donald = config2.getValue("tck.config.test.javaconfig.converter.donaldname", Donald.class);
    Assert.assertNotNull(donald);
    Assert.assertEquals(donald.getName(), "DUCK",
        "The converter with the highest priority (using upper case) must be used.");
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Test
public void testDuckConversionWithMultipleConverters() {
    // defines 2 config with the converters defined in different orders.
    // Order must not matter, the UpperCaseDuckConverter must always be used as it has the highest priority
    Config config1 = ConfigProviderResolver.instance().getBuilder().addDefaultSources()
        .withConverters(new UpperCaseDuckConverter(), new DuckConverter())
        .build();
    Config config2 = ConfigProviderResolver.instance().getBuilder().addDefaultSources()
        .withConverters(new DuckConverter(), new UpperCaseDuckConverter())
        .build();

    Duck duck = config1.getValue("tck.config.test.javaconfig.converter.duckname", Duck.class);
    Assert.assertNotNull(duck);
    Assert.assertEquals(duck.getName(), "HANNELORE",
        "The converter with the highest priority (UpperCaseDuckConverter) must be used.");

    duck = config2.getValue("tck.config.test.javaconfig.converter.duckname", Duck.class);
    Assert.assertNotNull(duck);
    // the UpperCaseDuckConverter has highest priority
    Assert.assertEquals(duck.getName(), "HANNELORE",
        "The converter with the highest priority (UpperCaseDuckConverter) must be used.");
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
/**
 * Note that:
 *
 * <pre>
 * If no annotation matches the specified parameter, the property will be ignored.
 * </pre>
 *
 * @param key
 * @param expectedType
 * @return the configured value
 */
private <U> U lookup(String key, Class<U> expectedType) {
    Config config = getConfig();
    Optional<U> value = null;
    if (ElementType.METHOD.equals(annotationSource)) {
        // <classname>/<methodname>/<annotation>/<parameter>
        value = config.getOptionalValue(getConfigKeyForMethod() + key, expectedType);
    } else {
        // <classname>/<annotation>/<parameter>
        value = config.getOptionalValue(getConfigKeyForClass() + key, expectedType);
    }
    if (!value.isPresent()) {
        // <annotation>/<parameter>
        value = config.getOptionalValue(getConfigType().getSimpleName() + "/" + key, expectedType);
    }
    // annotation values
    return value.isPresent() ? value.get() : getConfigFromAnnotation(key);
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Override
public void releaseConfig(Config config) {
    if (config == null) {
        // get the config from the current TCCL
        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
        if (classLoader == null) {
            classLoader = DefaultConfigProvider.class.getClassLoader();
        }
        config = existingConfig(classLoader);
    }

    if (config != null) {
        synchronized (DefaultConfigProvider.class) {
            Iterator<Map.Entry<ClassLoader, WeakReference<Config>>> it = configs.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry<ClassLoader, WeakReference<Config>> entry = it.next();
                if (entry.getValue().get() != null && entry.getValue().get() == config) {
                    it.remove();
                    break;
                }
            }
        }
    }
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Override
public Config getConfig(ClassLoader classLoader) {
    Config config = configsForClassLoader.get(classLoader);
    if (config != null) {
        return config;
    } else {
        config = getBuilder().forClassLoader(classLoader)
                .addDefaultSources()
                .addDiscoveredSources()
                .addDiscoveredConverters()
                .build();
        registerConfig(config, classLoader);
        return config;
    }
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Override
public void releaseConfig(Config config) {
    Iterator<Map.Entry<ClassLoader, Config>> iterator = configsForClassLoader.entrySet().iterator();
    while (iterator.hasNext()) {
        Map.Entry<ClassLoader, Config> entry = iterator.next();
        if (entry.getValue() == config) {
            iterator.remove();
            return;
        }


    }
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Test
public void testDonaldConversionWithLambdaConverter() {
    Config newConfig = ConfigProviderResolver.instance().getBuilder().addDefaultSources()
        .withConverter(Donald.class, 100, (s) -> Donald.iLikeDonald(s))
        .build();
    Donald donald = newConfig.getValue("tck.config.test.javaconfig.converter.donaldname", Donald.class);
    Assert.assertNotNull(donald);
    Assert.assertEquals(donald.getName(), "Duck");
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Test
public void testAutoDiscoveredConverterManuallyAdded() {

    Config config = ConfigProviderResolver.instance().getBuilder().addDefaultSources().addDiscoveredSources().addDiscoveredConverters().build();
    Pizza dVaule = config.getValue("tck.config.test.customDbConfig.key3", Pizza.class);
    Assert.assertEquals(dVaule.getSize(), "big");
    Assert.assertEquals(dVaule.getFlavor(), "cheese");
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Override
public Config build() {
    List<ConfigSource> configSources = new ArrayList<>();
     if (forClassLoader == null) {
         forClassLoader = Thread.currentThread().getContextClassLoader();
         if (forClassLoader == null) {
             forClassLoader = DefaultConfigProvider.class.getClassLoader();
         }
     }

    if (!ignoreDefaultSources) {
        configSources.addAll(getBuiltInConfigSources(forClassLoader));
    }
    configSources.addAll(sources);

    if (!ignoreDiscoveredSources) {
        // load all ConfigSource services
        ServiceLoader<ConfigSource> configSourceLoader = ServiceLoader.load(ConfigSource.class, forClassLoader);
        configSourceLoader.forEach(configSource -> configSources.add(configSource));

        // load all ConfigSources from ConfigSourceProviders
        ServiceLoader<ConfigSourceProvider> configSourceProviderLoader = ServiceLoader.load(ConfigSourceProvider.class, forClassLoader);
        configSourceProviderLoader.forEach(configSourceProvider ->
                configSourceProvider.getConfigSources(forClassLoader)
                        .forEach(configSource -> configSources.add(configSource)));
    }

    ConfigImpl config = new ConfigImpl();
    config.addConfigSources(configSources);

    for (Converter<?> converter : converters) {
        config.addConverter(converter);
    }

    return config;
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
@Override
public Config getConfig(ClassLoader forClassLoader) {

    Config config = existingConfig(forClassLoader);
    if (config == null) {
        synchronized (DefaultConfigProvider.class) {
            config = existingConfig(forClassLoader);
            if (config == null) {
                config = getBuilder().forClassLoader(forClassLoader).addDefaultSources().addDiscoveredSources().build();
                registerConfig(config, forClassLoader);
            }
        }
    }
    return config;
}
 

import org.eclipse.microprofile.config.Config; //导入依赖的package包/类
private static String[] mapUrls(String[] urls) {
    final Config config = ConfigProvider.getConfig();
    List<String> patterns = Arrays.stream(urls)
            .map(s -> {
                if(s.startsWith(PREFIX) && s.endsWith(SUFFIX)) {
                    String key = s.replaceFirst(PREFIX_REGEX,"").replace(SUFFIX,"");
                    return config.getOptionalValue(key, String.class).orElse(s);
                }
                else {
                    return s;
                }
            })
            .collect(toList());
            return patterns.toArray(new String[urls.length]);
}