Example usage for org.springframework.http HttpHeaders CACHE_CONTROL

Introduction

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

Prototype

String CACHE_CONTROL

To view the source code for org.springframework.http HttpHeaders CACHE_CONTROL.

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Document

The HTTP Cache-Control header field name.

Usage

From source file:org.openscience.cdk.app.DepictController.java

private HttpEntity<byte[]> makeResponse(byte[] bytes, String contentType) {
    HttpHeaders header = new HttpHeaders();
    String type = contentType.substring(0, contentType.indexOf('/'));
    String subtype = contentType.substring(contentType.indexOf('/') + 1, contentType.length());
    header.setContentType(new MediaType(type, subtype));
    header.add("Access-Control-Allow-Origin", "*");
    header.set(HttpHeaders.CACHE_CONTROL, "max-age=31536000");
    header.setContentLength(bytes.length);
    return new HttpEntity<>(bytes, header);
}

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From source file:de.appsolve.padelcampus.controller.ImagesController.java

@RequestMapping(value = "image/{sha256}", consumes = MediaType.ALL_VALUE, produces = {
        MediaType.IMAGE_PNG_VALUE, MediaType.IMAGE_JPEG_VALUE, MediaType.IMAGE_GIF_VALUE, "image/svg+xml" })
public ResponseEntity<byte[]> showImage(@PathVariable("sha256") String sha256) {
    Image image = imageBaseDAO.findBySha256(sha256);
    if (image != null && image.getContent() != null) {
        byte[] byteArray = image.getContent();
        ResponseEntity.BodyBuilder builder = ResponseEntity.ok()
                .header(HttpHeaders.CACHE_CONTROL, String.format("public,max-age=%s,immutable", ONE_YEAR))
                .contentLength(byteArray.length).contentType(MediaType.IMAGE_PNG);

        if (!StringUtils.isEmpty(image.getContentType())) {
            try {
                MediaType mediaType = MediaType.parseMediaType(image.getContentType());
                builder.contentType(mediaType);
            } catch (InvalidMediaTypeException e) {
                LOG.warn(e.getMessage(), e);
            }//from  ww w  .ja  v  a 2  s .  c om
        }
        return builder.body(byteArray);
    }
    LOG.warn(String.format("Unable to display image %s", sha256));
    return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}

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From source file:net.turnbig.pandora.web.Servlets.java

/**
 *  Header.//from  ww  w. ja v a 2  s  . co m
 */
public static void setExpiresHeader(HttpServletResponse response, long expiresSeconds) {
    // Http 1.0 header, set a fix expires date.
    response.setDateHeader(HttpHeaders.EXPIRES, System.currentTimeMillis() + (expiresSeconds * 1000));
    // Http 1.1 header, set a time after now.
    response.setHeader(HttpHeaders.CACHE_CONTROL, "private, max-age=" + expiresSeconds);
}

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From source file:net.turnbig.pandora.web.Servlets.java

/**
 * ?Header.//  w w  w. j a v a 2 s .c o  m
 */
public static void setNoCacheHeader(HttpServletResponse response) {
    // Http 1.0 header
    response.setDateHeader(HttpHeaders.EXPIRES, 1L);
    response.addHeader(HttpHeaders.PRAGMA, "no-cache");
    // Http 1.1 header
    response.setHeader(HttpHeaders.CACHE_CONTROL, "no-cache, no-store, max-age=0");
}

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