Example usage for java.lang StringBuffer charAt

Introduction

In this page you can find the example usage for java.lang StringBuffer charAt.

Prototype

@Override
public synchronized char charAt(int index)

Source Link

Usage

From source file:cn.remex.core.util.StringUtils.java

/**
 * ?//from w  ww  .j  a  va2s.  c  om
 * Trim leading whitespace from the given String.
 * @param str the String to check
 * @return the trimmed String
 * @see java.lang.Character#isWhitespace
 */
public static String trimLeadingWhitespace(final String str) {
    if (!hasLength(str)) {
        return str;
    }
    StringBuffer buf = new StringBuffer(str);
    while (buf.length() > 0 && Character.isWhitespace(buf.charAt(0))) {
        buf.deleteCharAt(0);
    }
    return buf.toString();
}

From source file:cn.remex.core.util.StringUtils.java

/**
 *  /*w w  w. jav a 2s  .co m*/
 * Trim trailing whitespace from the given String.
 * @param str the String to check 
 * @return the trimmed String ??
 * @see java.lang.Character#isWhitespace
 */
public static String trimTrailingWhitespace(final String str) {
    if (!hasLength(str)) {
        return str;
    }
    StringBuffer buf = new StringBuffer(str);
    while (buf.length() > 0 && Character.isWhitespace(buf.charAt(buf.length() - 1))) {
        buf.deleteCharAt(buf.length() - 1);
    }
    return buf.toString();
}

From source file:cn.remex.core.util.StringUtils.java

/**
 * /*w  w  w.j  a v  a  2 s  . c  om*/
 * Trim leading and trailing whitespace from the given String.
 * @param str the String to check 
 * @return the trimmed String ??
 * @see java.lang.Character#isWhitespace
 */
public static String trimWhitespace(final String str) {
    if (!hasLength(str)) {
        return str;
    }
    StringBuffer buf = new StringBuffer(str);
    while (buf.length() > 0 && Character.isWhitespace(buf.charAt(0))) {
        buf.deleteCharAt(0);
    }
    while (buf.length() > 0 && Character.isWhitespace(buf.charAt(buf.length() - 1))) {
        buf.deleteCharAt(buf.length() - 1);
    }
    return buf.toString();
}

From source file:org.eclipse.e4.emf.internal.xpath.LangAttributePointer.java

@Override
public String asPath() {
    StringBuffer buffer = new StringBuffer();
    if (parent != null) {
        buffer.append(parent.asPath());/* ww  w  . java 2  s.co m*/
        if (buffer.length() == 0 || buffer.charAt(buffer.length() - 1) != '/') {
            buffer.append('/');
        }
    }
    buffer.append("@xml:lang");
    return buffer.toString();
}

From source file:cn.remex.core.util.StringUtils.java

/**
 *  /*from   ww w . jav  a  2 s  .c om*/
 * Trim <i>all</i> whitespace from the given String:
 * leading, trailing, and inbetween characters.
 * @param str the String to check  ?? 
 * @return the trimmed String ??
 * @see java.lang.Character#isWhitespace
 */
public static String trimAllWhitespace(final String str) {
    if (!hasLength(str)) {
        return str;
    }
    StringBuffer buf = new StringBuffer(str);
    int index = 0;
    while (buf.length() > index) {
        if (Character.isWhitespace(buf.charAt(index))) {
            buf.deleteCharAt(index);
        } else {
            index++;
        }
    }
    return buf.toString();
}

From source file:com.netfinworks.rest.convert.MultiPartFormDataParamConvert.java

private <T> Object getPropertyValue(T pojo, Class<?> clazz, String propertyName, String prefix)
        throws NoSuchMethodException {
    StringBuffer buf = new StringBuffer(propertyName);
    int char0 = buf.charAt(0);
    buf.setCharAt(0, (char) (char0 >= 97 ? char0 - 32 : char0));
    buf.insert(0, prefix);//from w w  w  . j ava  2  s  .  c  o  m
    Method m = null;
    try {
        m = clazz.getMethod(buf.toString(), emptyClazzArray);
        return m.invoke(pojo, new Object[0]);
    } catch (SecurityException e) {
        logger.debug("property can't be access! ");
        return null;
    } catch (NoSuchMethodException e) {
        logger.debug("property '{}' doesn't exist! ", buf.toString());
        throw e;
    } catch (IllegalArgumentException e) {
        logger.debug("method can't be invoke! wrong argument. " + e.toString());
        return null;
    } catch (IllegalAccessException e) {
        logger.debug("method can't be invoke! access exception. " + e.toString());
        return null;
    } catch (InvocationTargetException e) {
        logger.debug("method can't be invoke! invocation target. " + e.toString());
        return null;
    }

}

From source file:org.j2free.util.HtmlFilter.java

/**
 *
 * @param msg// w w w  . j av  a 2s  . c  o  m
 * @param allowedTags
 * @return
 */
public String filter(String msg, String[] allowedTags) {
    if (msg == null)
        return "";
    else if (msg.length() == 0 || msg.equals("") || !msg.contains("<"))
        return msg;

    okayTags.clear();
    if (allowedTags != null && allowedTags.length > 0)
        okayTags.addAll(Arrays.asList(allowedTags));

    StringBuffer line = new StringBuffer(msg);
    for (int i = 0; i < line.length(); i++) {
        if (line.charAt(i) == '<') {
            int begin = i, end = i;
            for (int j = i + 1; j < line.length(); j++) {
                if (line.charAt(j) == '>') {
                    end = j + 1;
                    break;
                }
            }
            if (!isOkayTag(new String(line.substring(begin, end)))) {
                line = line.delete(begin, end);
            }
        }
    }
    return new String(line);
}

From source file:org.j2free.util.ServletUtils.java

/**
 * Redirects the user to the current url over HTTP
 *
 * @param request a HttpServletRequest/*w  ww .jav a  2  s .c om*/
 * @param response a HttpServletResponse
 * @param nonSslPort the port Non-SSL requests should be forwarded to
 * @throws ServletException
 * @throws IOException
 */
public static void redirectOverNonSSL(HttpServletRequest request, HttpServletResponse response, int nonSslPort)
        throws ServletException, IOException {

    StringBuffer url = request.getRequestURL();

    // Make sure we're on http
    if (url.charAt(4) == 's')
        url.deleteCharAt(4);

    // If there is a non-ssl port, make sure we're on it,
    // otherwise assume we're already on the right port
    if (nonSslPort > 0) {
        int portStart = url.indexOf(":", 8) + 1;
        int portEnd = url.indexOf("/", 8);

        if (portEnd == -1) // If their isn't a trailing slash, then the end is the last char
            portEnd = url.length() - 1;

        if (portStart > 0 && portStart < portEnd) { // If we detected a : before the trailing slash or end of url, delete the port
            url.delete(portStart, portEnd);
        } else {
            url.insert(portEnd, ':'); // If the url didn't have a port, add in the :
            portStart = portEnd;
        }

        url.insert(portStart, nonSslPort); // Insert the right port where it should be
    }

    LogFactory.getLog(ServletUtils.class).debug("redirectOverSSL sending 301: " + url.toString());
    sendPermanentRedirect(response, url.toString());
}

From source file:org.j2free.util.ServletUtils.java

/**
 * Redirects the user to the current url over SSL
 *
 * @param request a HttpServletRequest/*from   w  ww.j  a va 2  s . co  m*/
 * @param response a HttpServletResponse
 * @param sslPort the port SSL requests should be forwarded to
 * @throws ServletException
 * @throws IOException
 */
public static void redirectOverSSL(HttpServletRequest request, HttpServletResponse response, int sslPort)
        throws ServletException, IOException {

    StringBuffer url = request.getRequestURL();

    // Make sure we're on https
    if (url.charAt(4) != 's')
        url.insert(4, 's');

    // If there is a ssl port, make sure we're on it,
    // otherwise assume we're already on the right port
    if (sslPort > 0) {
        int portStart = url.indexOf(":", 8) + 1;
        int portEnd = url.indexOf("/", 8);

        if (portEnd == -1) // If their isn't a trailing slash, then the end is the last char
            portEnd = url.length() - 1;

        if (portStart > 0 && portStart < portEnd) { // If we detected a : before the trailing slash or end of url, delete the port
            url.delete(portStart, portEnd);
        } else {
            url.insert(portEnd, ':'); // If the url didn't have a port, add in the :
            portStart = portEnd;
        }

        url.insert(portStart, sslPort); // Insert the right port where it should be
    }

    LogFactory.getLog(ServletUtils.class).debug("redirectOverSSL sending 301: " + url.toString());
    sendPermanentRedirect(response, url.toString());
}

From source file:org.j2free.util.ServletUtils.java

/**
 * Redirects the user to the current url over HTTPS
 *
 * @param request a HttpServletRequest/*www.  j  a  v a  2  s  . com*/
 * @param response a HttpServletResponse
 * @param urlStr 
 * @param nonSslPort the port Non-SSL requests should be forwarded to
 * @throws ServletException
 * @throws IOException
 */
public static void redirectOverNonSSL(HttpServletRequest request, HttpServletResponse response, String urlStr,
        int nonSslPort) throws ServletException, IOException {

    StringBuffer url = new StringBuffer(urlStr);

    // Make sure we're on http
    if (url.charAt(4) == 's')
        url.deleteCharAt(4);

    // If there is a non-ssl port, make sure we're on it,
    // otherwise assume we're already on the right port
    if (nonSslPort > 0) {
        int portStart = url.indexOf(":", 8) + 1;
        int portEnd = url.indexOf("/", 8);

        if (portEnd == -1) // If their isn't a trailing slash, then the end is the last char
            portEnd = url.length() - 1;

        if (portStart > 0 && portStart < portEnd) { // If we detected a : before the trailing slash or end of url, delete the port
            url.delete(portStart, portEnd);
        } else {
            url.insert(portEnd, ':'); // If the url didn't have a port, add in the :
            portStart = portEnd;
        }

        url.insert(portStart, nonSslPort); // Insert the right port where it should be
    }

    LogFactory.getLog(ServletUtils.class).debug("redirectOverSSL sending 301: " + url.toString());
    sendPermanentRedirect(response, url.toString());
}