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) $

    
    public String getCharset() {
        String charset = DEFAULT_CONTENT_CHARSET;
        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();
                }

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            s = "responseContentLength "+info.getContentLength();
            AgpDPart.LOGGER.finest("onBeforeReadResponse "+s);
            
            h = info.getResponseHeader("Content-Type");
            if (h != null) {
              HeaderElement elements[] = h.getElements();
              // Expect only one header element to be there, no more, no less
              if (elements.length == 1) {
                String sContentType = elements[0].getName();
                String sCharset = null;
                NameValuePair nvp = elements[0].getParameterByName("charset");
                if (nvp != null) {
                  sCharset = nvp.getValue();
                }
                oThis.setContentType(sContentType);
                oThis.setCharset(sCharset);
                s = "contentType="+sContentType+" charset="+sCharset;
                AgpDPart.LOGGER.finest("onBeforeReadResponse "+s);
              }
            }
            
            h = info.getResponseHeader("Content-Disposition");
            if (h != null) {
              HeaderElement elements[] = h.getElements();
              for (HeaderElement element: elements) {
                NameValuePair[] params = element.getParameters();
                for (NameValuePair param: params) {
                  s = "Content-Disposition param "+param.getName()+"="+param.getValue();
                  AgpDPart.LOGGER.finest("onBeforeReadResponse "+s);

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    public String getCharset() {
        String charset = DEFAULT_CONTENT_CHARSET;
        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();
                }

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        // Process old style headers first
        Header[] cookieHeaders = method.getResponseHeaders(HTTPConstants.HEADER_SET_COOKIE);
        for (int i = 0; i < cookieHeaders.length; i++) {
            HeaderElement[] elements = cookieHeaders[i].getElements();
            for (int e = 0; e < elements.length; e++) {
                HeaderElement element = elements[e];
                if (Constants.SESSION_COOKIE.equalsIgnoreCase(element.getName()) ||
                        Constants.SESSION_COOKIE_JSESSIONID.equalsIgnoreCase(element.getName())) {
                    sessionCookie = element.getValue();
                }
            }
        }
        // Overwrite old style cookies with new style ones if present
        cookieHeaders = method.getResponseHeaders(HTTPConstants.HEADER_SET_COOKIE2);
        for (int i = 0; i < cookieHeaders.length; i++) {
            HeaderElement[] elements = cookieHeaders[i].getElements();
            for (int e = 0; e < elements.length; e++) {
                HeaderElement element = elements[e];
                if (Constants.SESSION_COOKIE.equalsIgnoreCase(element.getName()) ||
                        Constants.SESSION_COOKIE_JSESSIONID.equalsIgnoreCase(element.getName())) {
                    sessionCookie = element.getValue();
                }
            }
        }


        if (sessionCookie != null) {

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    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

    
    public String getCharset() {
        String charset = DEFAULT_CONTENT_CHARSET;
        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();
                }

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