Example usage for org.apache.http.message HeaderValueParser parseElements

Introduction

In this page you can find the example usage for org.apache.http.message HeaderValueParser parseElements.

Prototype

HeaderElement[] parseElements(CharArrayBuffer charArrayBuffer, ParserCursor parserCursor) throws ParseException;

Source Link

Usage

From source file:com.soundcloud.playerapi.OAuth2Scheme.java

@Override
public void processChallenge(Header header) throws MalformedChallengeException {
    if (header == null) {
        throw new IllegalArgumentException("Header may not be null");
    }//from   ww w .  ja va  2s.  c  o m
    String authHeader = header.getName();
    if (!authHeader.equalsIgnoreCase(AUTH.WWW_AUTH)) {
        throw new MalformedChallengeException("Unexpected header name: " + authHeader);
    }

    CharArrayBuffer buffer;
    int pos;
    if (header instanceof FormattedHeader) {
        buffer = ((FormattedHeader) header).getBuffer();
        pos = ((FormattedHeader) header).getValuePos();
    } else {
        String s = header.getValue();
        if (s == null) {
            throw new MalformedChallengeException("Header value is null");
        }
        buffer = new CharArrayBuffer(s.length());
        buffer.append(s);
        pos = 0;
    }
    while (pos < buffer.length() && HTTP.isWhitespace(buffer.charAt(pos))) {
        pos++;
    }
    int beginIndex = pos;
    while (pos < buffer.length() && !HTTP.isWhitespace(buffer.charAt(pos))) {
        pos++;
    }
    int endIndex = pos;
    String s = buffer.substring(beginIndex, endIndex);
    if (!s.equalsIgnoreCase(getSchemeName())) {
        throw new MalformedChallengeException("Invalid scheme identifier: " + s);
    }
    HeaderValueParser parser = BasicHeaderValueParser.DEFAULT;
    ParserCursor cursor = new ParserCursor(pos, buffer.length());
    HeaderElement[] elements = parser.parseElements(buffer, cursor);
    if (elements.length == 0) {
        throw new MalformedChallengeException("Authentication challenge is empty");
    }
    for (HeaderElement element : elements) {
        this.mParams.put(element.getName(), element.getValue());
    }
}

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