Example usage for org.springframework.core.env CompositePropertySource CompositePropertySource

Introduction

In this page you can find the example usage for org.springframework.core.env CompositePropertySource CompositePropertySource.

Prototype

public CompositePropertySource(String name) 

Source Link

Document

Create a new CompositePropertySource .

Usage

From source file:org.springframework.cloud.config.client.ConfigServicePropertySourceLocator.java

@Override
@Retryable(interceptor = "configServerRetryInterceptor")
public org.springframework.core.env.PropertySource<?> locate(
        org.springframework.core.env.Environment environment) {
    ConfigClientProperties properties = this.defaultProperties.override(environment);
    CompositePropertySource composite = new CompositePropertySource("configService");
    RestTemplate restTemplate = this.restTemplate == null ? getSecureRestTemplate(properties)
            : this.restTemplate;
    Exception error = null;//from   ww w . j  a  v  a 2 s.c  o  m
    String errorBody = null;
    logger.info("Fetching config from server at: " + properties.getRawUri());
    try {
        String[] labels = new String[] { "" };
        if (StringUtils.hasText(properties.getLabel())) {
            labels = StringUtils.commaDelimitedListToStringArray(properties.getLabel());
        }

        String state = ConfigClientStateHolder.getState();

        // Try all the labels until one works
        for (String label : labels) {
            Environment result = getRemoteEnvironment(restTemplate, properties, label.trim(), state);
            if (result != null) {
                logger.info(String.format(
                        "Located environment: name=%s, profiles=%s, label=%s, version=%s, state=%s",
                        result.getName(),
                        result.getProfiles() == null ? "" : Arrays.asList(result.getProfiles()),
                        result.getLabel(), result.getVersion(), result.getState()));

                for (PropertySource source : result.getPropertySources()) {
                    @SuppressWarnings("unchecked")
                    Map<String, Object> map = (Map<String, Object>) source.getSource();
                    composite.addPropertySource(new MapPropertySource(source.getName(), map));
                }

                if (StringUtils.hasText(result.getState()) || StringUtils.hasText(result.getVersion())) {
                    HashMap<String, Object> map = new HashMap<>();
                    putValue(map, "config.client.state", result.getState());
                    putValue(map, "config.client.version", result.getVersion());
                    composite.addFirstPropertySource(new MapPropertySource("configClient", map));
                }
                return composite;
            }
        }
    } catch (HttpServerErrorException e) {
        error = e;
        if (MediaType.APPLICATION_JSON.includes(e.getResponseHeaders().getContentType())) {
            errorBody = e.getResponseBodyAsString();
        }
    } catch (Exception e) {
        error = e;
    }
    if (properties.isFailFast()) {
        throw new IllegalStateException(
                "Could not locate PropertySource and the fail fast property is set, failing", error);
    }
    logger.warn("Could not locate PropertySource: "
            + (errorBody == null ? error == null ? "label not found" : error.getMessage() : errorBody));
    return null;

}

---

From source file:org.springframework.cloud.zookeeper.config.ZookeeperPropertySourceLocator.java

@Override
public PropertySource<?> locate(Environment environment) {
    if (environment instanceof ConfigurableEnvironment) {
        ConfigurableEnvironment env = (ConfigurableEnvironment) environment;
        String appName = env.getProperty("spring.application.name");
        List<String> profiles = Arrays.asList(env.getActiveProfiles());

        String root = this.properties.getRoot();
        this.contexts = new ArrayList<>();

        String defaultContext = root + "/" + this.properties.getDefaultContext();
        this.contexts.add(defaultContext);
        addProfiles(this.contexts, defaultContext, profiles);

        StringBuilder baseContext = new StringBuilder(root);
        if (!appName.startsWith("/")) {
            baseContext.append("/");
        }//from   w w w . j ava 2  s  . c  o  m
        baseContext.append(appName);
        this.contexts.add(baseContext.toString());
        addProfiles(this.contexts, baseContext.toString(), profiles);

        CompositePropertySource composite = new CompositePropertySource("zookeeper");

        Collections.reverse(this.contexts);

        for (String propertySourceContext : this.contexts) {
            try {
                PropertySource propertySource = create(propertySourceContext);
                composite.addPropertySource(propertySource);
                // TODO: howto call close when /refresh
            } catch (Exception e) {
                if (this.properties.isFailFast()) {
                    ReflectionUtils.rethrowRuntimeException(e);
                } else {
                    log.warn("Unable to load zookeeper config from " + propertySourceContext, e);
                }
            }
        }

        return composite;
    }
    return null;
}

---

From source file:org.springframework.context.annotation.ConfigurationClassParser.java

private void addPropertySource(PropertySource<?> propertySource) {
    String name = propertySource.getName();
    MutablePropertySources propertySources = ((ConfigurableEnvironment) this.environment).getPropertySources();

    if (this.propertySourceNames.contains(name)) {
        // We've already added a version, we need to extend it
        PropertySource<?> existing = propertySources.get(name);
        if (existing != null) {
            PropertySource<?> newSource = (propertySource instanceof ResourcePropertySource
                    ? ((ResourcePropertySource) propertySource).withResourceName()
                    : propertySource);//from  w ww  .  jav  a 2  s  .  com
            if (existing instanceof CompositePropertySource) {
                ((CompositePropertySource) existing).addFirstPropertySource(newSource);
            } else {
                if (existing instanceof ResourcePropertySource) {
                    existing = ((ResourcePropertySource) existing).withResourceName();
                }
                CompositePropertySource composite = new CompositePropertySource(name);
                composite.addPropertySource(newSource);
                composite.addPropertySource(existing);
                propertySources.replace(name, composite);
            }
            return;
        }
    }

    if (this.propertySourceNames.isEmpty()) {
        propertySources.addLast(propertySource);
    } else {
        String firstProcessed = this.propertySourceNames.get(this.propertySourceNames.size() - 1);
        propertySources.addBefore(firstProcessed, propertySource);
    }
    this.propertySourceNames.add(name);
}

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