Example usage for javax.activation MimeTypeParameterList MimeTypeParameterList

Introduction

In this page you can find the example usage for javax.activation MimeTypeParameterList MimeTypeParameterList.

Prototype

public MimeTypeParameterList(String parameterList) throws MimeTypeParseException 

Source Link

Document

Constructs a new MimeTypeParameterList with the passed in data.

Usage

From source file:org.mulgara.resolver.http.HttpContent.java

/**
 * Read the mime type. Should only be done if the Mime type is not already available
 * as this will close the connection.//from  w  ww  . j  a v a  2s.  c om
 * @return The MimeType for the URL.
 * @throws NotModifiedException if the content validates against the cache
 */
@SuppressWarnings("unchecked")
private MimeType readMimeType(HttpMethod method) throws NotModifiedException {
    MimeType result = null;
    String contentType = null;

    try {
        // obtain connection and retrieve the headers
        Header header = method.getResponseHeader("Content-Type");
        if (header != null) {
            contentType = header.getValue();
            // find the parameter separator so we can protect against bad params
            int sep = contentType.indexOf(';');
            // no params, just create the MimeType
            if (sep < 0)
                result = new MimeType(contentType);
            else {
                // create the MimeType from the type/subtype
                result = new MimeType(contentType.substring(0, sep));
                // parse parameters separately and set the result accordingly
                try {
                    MimeTypeParameterList params = new MimeTypeParameterList(contentType.substring(sep + 1));
                    Enumeration<String> names = (Enumeration<String>) params.getNames();
                    while (names.hasMoreElements()) {
                        String name = names.nextElement();
                        result.setParameter(name, params.get(name));
                    }
                } catch (MimeTypeParseException e) {
                    logger.warn("Ignoring bad parameters in '" + contentType.substring(sep + 1)
                            + "' from the content type for " + httpUri);
                }
            }
            if (logger.isInfoEnabled()) {
                logger.info("Obtain content type " + result + "  from " + httpUri);
            }
        }
    } catch (java.lang.IllegalStateException e) {
        logger.info("Unable to obtain content type for " + httpUri);
    } catch (MimeTypeParseException e) {
        logger.warn("Unexpected parameters before ; in '" + contentType + "' as a content type for " + httpUri);
    }
    return result;
}

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