Java 类javax.mail.internet.ParameterList 实例源码

private void updateContentType(boolean cleanDefaultRoot) throws MessagingException {
    BodyPart part = null;
    if (rootId == null) {
        part = getBodyPart(0);
    } else {
        part = getBodyPart(rootId);
        if (part == null) {
            if (cleanDefaultRoot)
                rootId = null;
            else
                throw new MessagingException("Can not set root: " + rootId + ": not found");
        }
    }
    if (part != null) {
        String primaryType = baseContentTypeObject.getPrimaryType();
        String subType = baseContentTypeObject.getSubType();
        ParameterList params = baseContentTypeObject.getParameterList();
        ContentType newContentType = new ContentType(primaryType, subType, params);
        ContentType rootContentType = new ContentType(part.getDataHandler().getContentType());
        newContentType.setParameter("type", rootContentType.getBaseType());
        if (rootId != null)
            newContentType.setParameter("start", stripBrackets(rootId));
        contentType = newContentType.toString();
    }
}

public static ContentType addCharset(ContentType contentType, String charset) {
    ParameterList orgParamList = contentType.getParameterList();
    ParameterList paramList = new ParameterList();
    if (orgParamList != null) {
        for (Enumeration<?> e = orgParamList.getNames(); e.hasMoreElements(); ) {
            String name = (String)e.nextElement();
            paramList.set(name, orgParamList.get(name));
        }
    }
    paramList.set("charset", charset);
    return new ContentType(contentType.getPrimaryType(), contentType.getSubType(), paramList);
}

public static ContentType removeCharset(ContentType contentType) {
    ParameterList orgParamList = contentType.getParameterList();
    ParameterList paramList = new ParameterList();
    for (Enumeration<?> e = orgParamList.getNames(); e.hasMoreElements(); ) {
        String name = (String)e.nextElement();
        if (!name.equalsIgnoreCase("charset")) {
            paramList.set(name, orgParamList.get(name));
        }
    }
    return new ContentType(contentType.getPrimaryType(), contentType.getSubType(), paramList);
}