Example usage for org.springframework.http HttpHeaders getIfModifiedSince

Introduction

In this page you can find the example usage for org.springframework.http HttpHeaders getIfModifiedSince.

Prototype

public long getIfModifiedSince() 

Source Link

Document

Return the value of the If-Modified-Since header.

Usage

From source file:org.springframework.cloud.stream.app.http.source.DefaultMixedCaseContentTypeHttpHeaderMapper.java

private Object getHttpHeader(HttpHeaders source, String name) {
    if (ACCEPT.equalsIgnoreCase(name)) {
        return source.getAccept();
    } else if (ACCEPT_CHARSET.equalsIgnoreCase(name)) {
        return source.getAcceptCharset();
    } else if (ALLOW.equalsIgnoreCase(name)) {
        return source.getAllow();
    } else if (CACHE_CONTROL.equalsIgnoreCase(name)) {
        String cacheControl = source.getCacheControl();
        return (StringUtils.hasText(cacheControl)) ? cacheControl : null;
    } else if (CONTENT_LENGTH.equalsIgnoreCase(name)) {
        long contentLength = source.getContentLength();
        return (contentLength > -1) ? contentLength : null;
    } else if (CONTENT_TYPE.equalsIgnoreCase(name)) {
        return source.getContentType();
    } else if (DATE.equalsIgnoreCase(name)) {
        long date = source.getDate();
        return (date > -1) ? date : null;
    } else if (ETAG.equalsIgnoreCase(name)) {
        String eTag = source.getETag();
        return (StringUtils.hasText(eTag)) ? eTag : null;
    } else if (EXPIRES.equalsIgnoreCase(name)) {
        try {/*from   ww  w .j av a2  s.c om*/
            long expires = source.getExpires();
            return (expires > -1) ? expires : null;
        } catch (Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug(e.getMessage());
            }
            // According to RFC 2616
            return null;
        }
    } else if (IF_NONE_MATCH.equalsIgnoreCase(name)) {
        return source.getIfNoneMatch();
    } else if (IF_MODIFIED_SINCE.equalsIgnoreCase(name)) {
        long modifiedSince = source.getIfModifiedSince();
        return (modifiedSince > -1) ? modifiedSince : null;
    } else if (IF_UNMODIFIED_SINCE.equalsIgnoreCase(name)) {
        String unmodifiedSince = source.getFirst(IF_UNMODIFIED_SINCE);
        return unmodifiedSince != null ? this.getFirstDate(unmodifiedSince, IF_UNMODIFIED_SINCE) : null;
    } else if (LAST_MODIFIED.equalsIgnoreCase(name)) {
        long lastModified = source.getLastModified();
        return (lastModified > -1) ? lastModified : null;
    } else if (LOCATION.equalsIgnoreCase(name)) {
        return source.getLocation();
    } else if (PRAGMA.equalsIgnoreCase(name)) {
        String pragma = source.getPragma();
        return (StringUtils.hasText(pragma)) ? pragma : null;
    }
    return source.get(name);
}

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