Example usage for org.springframework.core.env Environment getProperty

Introduction

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

Prototype

String getProperty(String key, String defaultValue);

Source Link

Document

Return the property value associated with the given key, or defaultValue if the key cannot be resolved.

Usage

From source file:org.springframework.boot.SpringApplication.java

private Banner selectBanner(Environment environment) {
    String location = environment.getProperty("banner.location", "banner.txt");
    ResourceLoader resourceLoader = this.resourceLoader != null ? this.resourceLoader
            : new DefaultResourceLoader(getClassLoader());
    Resource resource = resourceLoader.getResource(location);

    if (resource.exists()) {
        return new ResourceBanner(resource);
    }/* www.j av  a 2 s .  com*/
    if (this.banner != null) {
        return this.banner;
    }
    return DEFAULT_BANNER;
}

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From source file:org.springframework.boot.SpringApplication.java

private String createStringFromBanner(Banner banner, Environment environment)
        throws UnsupportedEncodingException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    banner.printBanner(environment, this.mainApplicationClass, new PrintStream(baos));
    String charset = environment.getProperty("banner.charset", "UTF-8");
    return baos.toString(charset);
}

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From source file:org.springframework.boot.SpringApplicationBannerPrinter.java

private Banner getTextBanner(Environment environment) {
    String location = environment.getProperty(BANNER_LOCATION_PROPERTY, DEFAULT_BANNER_LOCATION);
    Resource resource = this.resourceLoader.getResource(location);
    if (resource.exists()) {
        return new ResourceBanner(resource);
    }//ww  w. ja  va  2 s .c  om
    return null;
}

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From source file:org.springframework.boot.SpringApplicationBannerPrinter.java

private String createStringFromBanner(Banner banner, Environment environment, Class<?> mainApplicationClass)
        throws UnsupportedEncodingException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    banner.printBanner(environment, mainApplicationClass, new PrintStream(baos));
    String charset = environment.getProperty("banner.charset", "UTF-8");
    return baos.toString(charset);
}

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From source file:org.springframework.xd.dirt.plugins.spark.streaming.SparkStreamingPlugin.java

/**
 * Start spark streaming context for the given streaming processor.
 *
 * @param sparkConfigs the spark configuration properties
 * @param sparkStreamingSupport the underlying processor implementation
 *//* w w w .j  ava  2s. c o m*/
private void startSparkStreamingContext(Properties sparkConfigs,
        final SparkStreamingSupport sparkStreamingSupport, final Module module) {
    final Receiver receiver = module.getComponent(Receiver.class);
    Environment env = this.getApplicationContext().getEnvironment();
    String masterURL = env.getProperty(SparkStreamingSupport.SPARK_MASTER_URL_PROP,
            SparkStreamingSupport.SPARK_DEFAULT_MASTER_URL);
    final SparkConf sparkConf = setupSparkConf(module, masterURL, sparkConfigs);
    final String batchInterval = env.getProperty(
            SparkStreamingSupport.SPARK_STREAMING_BATCH_INTERVAL_MODULE_OPTION,
            env.getProperty(SparkStreamingSupport.SPARK_STREAMING_BATCH_INTERVAL_PROP,
                    SparkStreamingSupport.SPARK_STREAMING_DEFAULT_BATCH_INTERVAL));
    final SparkStreamingListener streamingListener = new SparkStreamingListener();

    final SparkMessageSender sender = (module.getType() == ModuleType.processor)
            ? module.getComponent(SparkMessageSender.class)
            : null;
    final StreamingContext streamingContext = new StreamingContext(sparkConf,
            new Duration(Long.valueOf(batchInterval)));
    streamingContext.addStreamingListener(streamingListener);
    Executors.newSingleThreadExecutor().execute(new Runnable() {
        @Override
        @SuppressWarnings("unchecked")
        public void run() {
            try {
                JavaStreamingContext javaStreamingContext = new JavaStreamingContext(streamingContext);
                streamingContexts.put(module, javaStreamingContext);
                JavaReceiverInputDStream javaInputDStream = javaStreamingContext.receiverStream(receiver);
                if (sparkStreamingSupport instanceof Processor) {
                    new ModuleExecutor().execute(javaInputDStream, (Processor) sparkStreamingSupport, sender);
                }
                if (sparkStreamingSupport instanceof org.springframework.xd.spark.streaming.scala.Processor) {
                    ReceiverInputDStream receiverInput = javaInputDStream.receiverInputDStream();
                    new org.springframework.xd.spark.streaming.scala.ModuleExecutor().execute(receiverInput,
                            (org.springframework.xd.spark.streaming.scala.Processor) sparkStreamingSupport,
                            sender);
                }
                javaStreamingContext.start();
                javaStreamingContext.awaitTermination();
            } catch (Exception e) {
                throw new IllegalStateException("Exception when running Spark Streaming application.", e);
            }
        }
    });
    try {
        boolean started = streamingListener.receiverStartLatch.await(30, TimeUnit.SECONDS);
        if (!started) {
            logger.warn("Deployment timed out when deploying Spark Streaming module " + sparkStreamingSupport);
        }
        if (!streamingListener.receiverStartSuccess.get()) {
            throw new IllegalStateException("Failed to start Spark Streaming Receiver");
        }
    } catch (InterruptedException ie) {
        throw new RuntimeException(ie);
    }
}

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