Example usage for java.lang StringBuilder length

Introduction

In this page you can find the example usage for java.lang StringBuilder length.

Prototype

int length();

Source Link

Document

Returns the length of this character sequence.

Usage

From source file:Main.java

public static String map2String(Map<String, String> map) {
    StringBuilder result = new StringBuilder();

    if (map == null || map.size() == 0)
        return "";

    for (String key : map.keySet()) {
        result.append(key).append("=").append(map.get(key)).append("&");
    }/*from w  w  w  .j av  a2s  .  c o m*/
    return result.substring(0, result.length() - 1);
}

From source file:StringUtils.java

/**
 * Reformats a string where lines that are longer than <tt>width</tt>
 * are split apart at the earliest wordbreak or at maxLength, whichever is
 * sooner. If the width specified is less than 5 or greater than the input
 * Strings length the string will be returned as is.
 * <p/>/*from   www  .j  ava 2  s .co m*/
 * Please note that this method can be lossy - trailing spaces on wrapped
 * lines may be trimmed.
 *
 * @param input the String to reformat.
 * @param width the maximum length of any one line.
 * @return a new String with reformatted as needed.
 */
public static String wordWrap(String input, int width, Locale locale) {
    // protect ourselves
    if (input == null) {
        return "";
    } else if (width < 5) {
        return input;
    } else if (width >= input.length()) {
        return input;
    }

    StringBuilder buf = new StringBuilder(input);
    boolean endOfLine = false;
    int lineStart = 0;

    for (int i = 0; i < buf.length(); i++) {
        if (buf.charAt(i) == '\n') {
            lineStart = i + 1;
            endOfLine = true;
        }

        // handle splitting at width character
        if (i > lineStart + width - 1) {
            if (!endOfLine) {
                int limit = i - lineStart - 1;
                BreakIterator breaks = BreakIterator.getLineInstance(locale);
                breaks.setText(buf.substring(lineStart, i));
                int end = breaks.last();

                // if the last character in the search string isn't a space,
                // we can't split on it (looks bad). Search for a previous
                // break character
                if (end == limit + 1) {
                    if (!Character.isWhitespace(buf.charAt(lineStart + end))) {
                        end = breaks.preceding(end - 1);
                    }
                }

                // if the last character is a space, replace it with a \n
                if (end != BreakIterator.DONE && end == limit + 1) {
                    buf.replace(lineStart + end, lineStart + end + 1, "\n");
                    lineStart = lineStart + end;
                }
                // otherwise, just insert a \n
                else if (end != BreakIterator.DONE && end != 0) {
                    buf.insert(lineStart + end, '\n');
                    lineStart = lineStart + end + 1;
                } else {
                    buf.insert(i, '\n');
                    lineStart = i + 1;
                }
            } else {
                buf.insert(i, '\n');
                lineStart = i + 1;
                endOfLine = false;
            }
        }
    }

    return buf.toString();
}

From source file:com.google.jenkins.flakyTestHandler.plugin.TestFlakyStatsOverRevision.java

/**
 * Get the name of a test that's URL-safe.
 *
 * @param testName input test name/*from w w w.j  av  a  2s .  com*/
 * @return name of the test with illegal characters replaced with '_'
 */
public static String getSafeTestName(String testName) {
    StringBuilder buf = new StringBuilder(testName);
    for (int i = 0; i < buf.length(); i++) {
        char ch = buf.charAt(i);
        if (!Character.isJavaIdentifierPart(ch)) {
            buf.setCharAt(i, '_');
        }
    }
    return buf.toString();
}

From source file:examples.mail.IMAPImportMbox.java

private static boolean process(final StringBuilder sb, final IMAPClient imap, final String folder,
        final int msgNum) throws IOException {
    final int length = sb.length();
    boolean haveMessage = length > 2;
    if (haveMessage) {
        System.out.println("MsgNum: " + msgNum + " Length " + length);
        sb.setLength(length - 2); // drop trailing CRLF
        String msg = sb.toString();
        if (!imap.append(folder, null, null, msg)) {
            throw new IOException("Failed to import message: " + msgNum + " " + imap.getReplyString());
        }/*  w ww. j a v  a2 s  .co m*/
    }
    return haveMessage;
}

From source file:org.cleverbus.core.common.exception.ExceptionTranslator.java

/**
 * Returns recursively error messages from the whole exception hierarchy.
 *
 * @param ex the exception//from   w w w .j a  va  2 s  .  c  om
 * @return exception message
 */
private static String getMessagesInExceptionHierarchy(Throwable ex) {
    Assert.notNull(ex, "the ex must not be null");

    // use a util that can handle recursive cause structure:
    Throwable[] hierarchy = ExceptionUtils.getThrowables(ex);

    StringBuilder messages = new StringBuilder();
    for (Throwable throwable : hierarchy) {
        if (messages.length() > 0) {
            messages.append(" => ");
        }
        messages.append(throwable.getClass().getSimpleName()).append(": ").append(throwable.getMessage());
    }

    return messages.toString();
}

From source file:gov.bnl.channelfinder.api.JSONChannels.java

/**
 * Creates a compact string representation for the log.
 *
 * @param data JSONChannel to create the string representation for
 * @return string representation/*from  w  w  w  . ja  va2s .  co m*/
 */
public static String toLog(JSONChannels data) {
    if (data.getChannels().size() == 0) {
        return "[None]";
    } else {
        StringBuilder s = new StringBuilder();
        s.append("[");
        for (JSONChannel c : data.getChannels()) {
            s.append(JSONChannel.toLog(c) + ",");
        }
        s.delete(s.length() - 1, s.length());
        s.append("]");
        return s.toString();
    }
}

From source file:camp.pixels.signage.util.NetworkInterfaces.java

public static String getMACAddress(String interfaceName) {
    try {//  w  w w  .j  av a  2 s . c o  m
        List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
        for (NetworkInterface intf : interfaces) {
            if (interfaceName != null) {
                if (!intf.getName().equalsIgnoreCase(interfaceName))
                    continue;
            }
            if (!VALID_INTERFACES.contains(intf.getName()))
                continue;
            byte[] mac = intf.getHardwareAddress();
            if (mac == null)
                continue;//return "";
            StringBuilder buf = new StringBuilder();
            for (int idx = 0; idx < mac.length; idx++)
                buf.append(String.format("%02X:", mac[idx]));
            if (buf.length() > 0)
                buf.deleteCharAt(buf.length() - 1);
            //Log.d("getMACAddress", intf.getName());
            //Log.d("getMACAddress", buf.toString());
            return buf.toString();
        }
    } catch (SocketException ex) {
    }
    return "";
}

From source file:Main.java

/**
 * Null-safe method for writing the items of a string array out as a string
 * separated by the given char separator.
 *
 * @param array     the array.//from   w w w.jav  a  2  s.  c o  m
 * @param separator the separator of the array items.
 * @return a string.
 */
public static String toString(String[] array, String separator) {
    StringBuilder builder = new StringBuilder();

    if (array != null && array.length > 0) {
        for (String string : array) {
            builder.append(string).append(separator);
        }

        builder.deleteCharAt(builder.length() - 1);
    }

    return builder.toString();
}

From source file:com.pedra.storefront.util.MetaSanitizerUtil.java

/**
 * Takes a List of KeywordModels and returns a comma separated list of keywords as String.
 * //from w  w  w  .j a v a  2  s  .c om
 * @param keywords
 *           List of KeywordModel objects
 * @return String of comma separated keywords
 */
public static String sanitizeKeywords(final List<KeywordModel> keywords) {
    if (keywords != null && !keywords.isEmpty()) {
        // Remove duplicates
        final Set<String> keywordSet = new HashSet<String>(keywords.size());
        for (final KeywordModel kw : keywords) {
            keywordSet.add(kw.getKeyword());
        }

        // Format keywords, join with comma
        final StringBuilder stringBuilder = new StringBuilder();
        for (final String kw : keywordSet) {
            stringBuilder.append(kw).append(',');
        }
        if (stringBuilder.length() > 0) {
            // Remove last comma
            return stringBuilder.substring(0, stringBuilder.length() - 1);
        }
    }
    return "";
}

From source file:io.cloudslang.content.httpclient.build.conn.ConnectionManagerBuilder.java

public static String buildConnectionManagerMapKey(String... connectionManagerMapKeys) {
    StringBuilder keyBuilder = new StringBuilder();
    for (String token : connectionManagerMapKeys) {
        keyBuilder.append(token).append(":");
    }//from  w w  w  . j  a va  2  s.  c  om
    if (keyBuilder.length() > 0) {
        keyBuilder.deleteCharAt(keyBuilder.length() - 1);
    }
    return keyBuilder.toString();
}