Example usage for org.springframework.core.codec Hints getLogPrefix

Introduction

In this page you can find the example usage for org.springframework.core.codec Hints getLogPrefix.

Prototype

public static String getLogPrefix(@Nullable Map<String, Object> hints) 

Source Link

Document

Obtain the hint #LOG_PREFIX_HINT , if present, or an empty String.

Usage

From source file:org.springframework.http.codec.ResourceHttpMessageWriter.java

private static MediaType getResourceMediaType(@Nullable MediaType mediaType, Resource resource,
        Map<String, Object> hints) {

    if (mediaType != null && mediaType.isConcrete() && !mediaType.equals(MediaType.APPLICATION_OCTET_STREAM)) {
        return mediaType;
    }/*from  w ww. j ava 2  s. co m*/
    mediaType = MediaTypeFactory.getMediaType(resource).orElse(MediaType.APPLICATION_OCTET_STREAM);
    if (logger.isDebugEnabled() && !Hints.isLoggingSuppressed(hints)) {
        logger.debug(Hints.getLogPrefix(hints) + "Resource associated with '" + mediaType + "'");
    }
    return mediaType;
}

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From source file:org.springframework.http.codec.ResourceHttpMessageWriter.java

private static Optional<Mono<Void>> zeroCopy(Resource resource, @Nullable ResourceRegion region,
        ReactiveHttpOutputMessage message, Map<String, Object> hints) {

    if (message instanceof ZeroCopyHttpOutputMessage && resource.isFile()) {
        try {//  w w w  . j a  v a2s .c  om
            File file = resource.getFile();
            long pos = region != null ? region.getPosition() : 0;
            long count = region != null ? region.getCount() : file.length();
            if (logger.isDebugEnabled()) {
                String formatted = region != null ? "region " + pos + "-" + (count) + " of " : "";
                logger.debug(Hints.getLogPrefix(hints) + "Zero-copy " + formatted + "[" + resource + "]");
            }
            return Optional.of(((ZeroCopyHttpOutputMessage) message).writeWith(file, pos, count));
        } catch (IOException ex) {
            // should not happen
        }
    }
    return Optional.empty();
}

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