Examples of org.apache.commons.httpclient.HeaderElement

org.apache.commons.httpclient.HeaderElement
One element of an HTTP header's value.

Some HTTP headers (such as the set-cookie header) have values that can be decomposed into multiple elements. Such headers must be in the following form:
```
 header  = [ element ] *( "," [ element ] ) element = name [ "=" [ value ] ] *( ";" [ param ] ) param   = name [ "=" [ value ] ] name    = token value   = ( token | quoted-string ) token         = 1*<any char except "=", ",", ";", <"> and white space> quoted-string = <"> *( text | quoted-char ) <"> text          = any char except <"> quoted-char   = "\" char 
```
Any amount of white space is allowed between any part of the header, element or param and is ignored. A missing value in any element or param will be stored as the empty {@link String}; if the "=" is also missing null will be stored instead.

This class represents an individual header element, containing both a name/value pair (value may be null) and optionally a set of additional parameters.

This class also exposes a {@link #parse} method for parsing a{@link Header} value into an array of elements.
@see Header @author B.C. Holmes @author Park, Sung-Gu @author Mike Bowler @author Oleg Kalnichevski @since 1.0 @version $Revision: 1.23 $ $Date: 2004-05-13 00:03:25 -0400 (Thu, 13 May 2004) $

        
        Cookie[] cookies = new Cookie[headerElements.length];


        for (int i = 0; i < headerElements.length; i++) {


            HeaderElement headerelement = headerElements[i];
            Cookie cookie = new Cookie(host,
                                       headerelement.getName(),
                                       headerelement.getValue(),
                                       defaultPath, 
                                       null,
                                       false);


            // cycle through the parameters
            NameValuePair[] parameters = headerelement.getParameters();
            // could be null. In case only a header element and no parameters.
            if (parameters != null) {


                for (int j = 0; j < parameters.length; j++) {
                    parseAttribute(parameters[j], cookie);

View Full Code Here

    protected String getContentCharSet(Header contentheader)
    {
        String charset = null;
        if (contentheader != null)
        {
            HeaderElement values[] = contentheader.getElements();
            if (values.length == 1)
            {
                NameValuePair param = values[0].getParameterByName("charset");
                if (param != null)
                {

View Full Code Here

    protected String getContentCharSet(Header contentheader)
    {
        String charset = null;
        if (contentheader != null)
        {
            HeaderElement values[] = contentheader.getElements();
            if (values.length == 1)
            {
                NameValuePair param = values[0].getParameterByName("charset");
                if (param != null)
                {

View Full Code Here

        
        Cookie[] cookies = new Cookie[headerElements.length];


        for (int i = 0; i < headerElements.length; i++) {


            HeaderElement headerelement = headerElements[i];
            Cookie cookie = new Cookie(host,
                                       headerelement.getName(),
                                       headerelement.getValue(),
                                       defaultPath, 
                                       null,
                                       false);


            // cycle through the parameters
            NameValuePair[] parameters = headerelement.getParameters();
            // could be null. In case only a header element and no parameters.
            if (parameters != null) {


                for (int j = 0; j < parameters.length; j++) {
                    parseAttribute(parameters[j], cookie);

View Full Code Here

    
    public String getCharset() {
        String charset = null;
        Header contenttype = this.headers.getFirstHeader("Content-Type");
        if (contenttype != null) {
            HeaderElement values[] = contenttype.getElements();
            if (values.length == 1) {
                NameValuePair param = values[0].getParameterByName("charset");
                if (param != null) {
                    charset = param.getValue();
                }

View Full Code Here

        HeaderElement[] headerElements =
                HeaderElement.parseElements(header.toCharArray());


        List cookies = new LinkedList();
        for (int i = 0; i < headerElements.length; i++) {
            HeaderElement headerelement = headerElements[i];
            Cookie2 cookie = null;
            try {
                cookie = new Cookie2(host,
                                    headerelement.getName(),
                                    headerelement.getValue(),
                                    path,
                                    null,
                                    false,
                                    new int[] {port});
            } catch (IllegalArgumentException ex) {
                throw new MalformedCookieException(ex.getMessage());
            }
            NameValuePair[] parameters = headerelement.getParameters();
            // could be null. In case only a header element and no parameters.
            if (parameters != null) {
                // Eliminate duplicate attribues. The first occurence takes precedence
                Map attribmap = new HashMap(parameters.length); 
                for (int j = parameters.length - 1; j >= 0; j--) {

View Full Code Here

                // Does not look like a valid expiry date
            }
        }
        if (isNetscapeCookie) {
            headerElements = new HeaderElement[] {
                    new HeaderElement(header.toCharArray())
            };
        } else {
            headerElements = HeaderElement.parseElements(header.toCharArray());
        }
        
        Cookie[] cookies = new Cookie[headerElements.length];


        for (int i = 0; i < headerElements.length; i++) {


            HeaderElement headerelement = headerElements[i];
            Cookie cookie = null;
            try {
                cookie = new Cookie(host,
                                    headerelement.getName(),
                                    headerelement.getValue(),
                                    defaultPath, 
                                    null,
                                    false);
            } catch (IllegalArgumentException e) {
                throw new MalformedCookieException(e.getMessage()); 
            }
            // cycle through the parameters
            NameValuePair[] parameters = headerelement.getParameters();
            // could be null. In case only a header element and no parameters.
            if (parameters != null) {


                for (int j = 0; j < parameters.length; j++) {
                    parseAttribute(parameters[j], cookie);

View Full Code Here

                //Do not remove the very first slash
                lastSlashIndex = 1;
            }
            defaultPath = defaultPath.substring(0, lastSlashIndex);
        }
        HeaderElement headerelement = new HeaderElement(header.toCharArray());
        Cookie cookie = new Cookie(host,
                       headerelement.getName(),
                       headerelement.getValue(),
                       defaultPath, 
                       null,
                       false);
        // cycle through the parameters
        NameValuePair[] parameters = headerelement.getParameters();
        // could be null. In case only a header element and no parameters.
        if (parameters != null) {
            for (int j = 0; j < parameters.length; j++) {
                parseAttribute(parameters[j], cookie);
            }

View Full Code Here

    {
        String charset = null;
        Header contenttype = this.headers.getFirstHeader(HttpConstants.HEADER_CONTENT_TYPE);
        if (contenttype != null)
        {
            HeaderElement values[] = contenttype.getElements();
            if (values.length == 1)
            {
                NameValuePair param = values[0].getParameterByName("charset");
                if (param != null)
                {

View Full Code Here

    {
        String charset = getFallbackCharset();
        Header contenttype = this.headers.getFirstHeader(HttpConstants.HEADER_CONTENT_TYPE);
        if (contenttype != null)
        {
            HeaderElement values[] = contenttype.getElements();
            if (values.length == 1)
            {
                NameValuePair param = values[0].getParameterByName("charset");
                if (param != null)
                {

View Full Code Here

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