Example usage for com.google.common.io ByteSource isEmpty

Introduction

In this page you can find the example usage for com.google.common.io ByteSource isEmpty.

Prototype

public boolean isEmpty() throws IOException 

Source Link

Document

Returns whether the source has zero bytes.

Usage

From source file:ratpack.jackson.configuration.internal.JacksonConfigurationFactory.java

@Override
public <T extends Configuration> T build(Class<T> configurationClass, ConfigurationSource configurationSource)
        throws ConfigurationException {
    ObjectNode node;//from   w ww  .j  a  v a  2s . c  o m
    ByteSource byteSource = configurationSource.getByteSource();
    try {
        if (byteSource.isEmpty()) {
            node = JsonNodeFactory.instance.objectNode();
        } else {
            try (InputStream inputStream = configurationSource.getByteSource().openBufferedStream()) {
                YAMLParser yamlParser = yamlFactory.createParser(inputStream);
                node = objectMapper.readTree(yamlParser);
            }
        }
        return build(configurationClass, node);
    } catch (IOException ex) {
        throw new ConfigurationException("Failed to load configuration", ex);
    }
}

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From source file:org.jasig.cas.extension.clearpass.EncryptedMapDecorator.java

/**
 * Read the contents of the source into a byte array.
 * @param source  the byte array source//from  w  ww .ja v  a2s. c om
 * @return the byte[] read from the source or null
 */
private byte[] consumeByteSourceOrNull(final ByteSource source) {
    try {
        if (source == null || source.isEmpty()) {
            return null;
        }
        return source.read();
    } catch (final IOException e) {
        logger.warn("Could not consume the byte array source", e);
        return null;
    }
}

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