Example usage for java.util.regex Pattern split

Introduction

In this page you can find the example usage for java.util.regex Pattern split.

Prototype

public String[] split(CharSequence input) 

Source Link

Document

Splits the given input sequence around matches of this pattern.

Usage

From source file:Main.java

public static String[] versionSplitting(String version, String regexVersionDelimiters) {
    Pattern pattern = Pattern.compile(regexVersionDelimiters);
    return pattern.split(version);
}

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From source file:Main.java

/**
 * Split a string into a list based on a pattern.
 * /*  w  ww.ja  v  a 2  s  .c o m*/
 * @param s the string to split.
 * @param pattern the pattern where to cut the string.
 * @return the splitted string, empty list if <code>s</code> is "".
 */
static public List<String> split(String s, Pattern pattern) {
    return s.length() == 0 ? Collections.<String>emptyList() : Arrays.asList(pattern.split(s));
}

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From source file:com.cloudera.oryx.rdf.computation.CovtypeIT.java

private static List<Example> readCovtypeExamples() throws IOException {
    List<Example> allExamples = Lists.newArrayList();
    Pattern delimiter = Pattern.compile(",");
    File dataFile = new File(TEST_TEMP_INBOUND_DIR, "covtype.csv.gz");
    for (CharSequence line : new FileLineIterable(dataFile)) {
        String[] tokens = delimiter.split(line);
        Feature[] features = new Feature[54];
        for (int i = 0; i < 10; i++) {
            features[i] = NumericFeature.forValue(Float.parseFloat(tokens[i]));
        }//from www  . j  ava  2  s. c o m
        for (int i = 10; i < 54; i++) {
            features[i] = CategoricalFeature.forValue(Integer.parseInt(tokens[i]));
        }
        Example trainingExample = new Example(CategoricalFeature.forValue(Integer.parseInt(tokens[54]) - 1),
                features);
        allExamples.add(trainingExample);
    }
    return allExamples;
}

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From source file:org.apache.hadoop.hive.ql.exec.mr.Throttle.java

/**
 * Fetch http://tracker.om:/gc.jsp?threshold=period.
 *///from w w w .  j  av a 2s.c o  m
public static void checkJobTracker(JobConf conf, Log LOG) {

    try {
        byte[] buffer = new byte[1024];
        int threshold = conf.getInt("mapred.throttle.threshold.percent", DEFAULT_MEMORY_GC_PERCENT);
        int retry = conf.getInt("mapred.throttle.retry.period", DEFAULT_RETRY_PERIOD);

        // If the threshold is 100 percent, then there is no throttling
        if (threshold == 100) {
            return;
        }

        // This is the Job Tracker URL
        String tracker = JobTrackerURLResolver.getURL(conf) + "/gc.jsp?threshold=" + threshold;

        while (true) {
            // read in the first 1K characters from the URL
            URL url = new URL(tracker);
            LOG.debug("Throttle: URL " + tracker);
            InputStream in = null;
            try {
                in = url.openStream();
                in.read(buffer);
                in.close();
                in = null;
            } finally {
                IOUtils.closeStream(in);
            }
            String fetchString = new String(buffer);

            // fetch the xml tag <dogc>xxx</dogc>
            Pattern dowait = Pattern.compile("<dogc>",
                    Pattern.CASE_INSENSITIVE | Pattern.DOTALL | Pattern.MULTILINE);
            String[] results = dowait.split(fetchString);
            if (results.length != 2) {
                throw new IOException(
                        "Throttle: Unable to parse response of URL " + url + ". Get retuned " + fetchString);
            }
            dowait = Pattern.compile("</dogc>", Pattern.CASE_INSENSITIVE | Pattern.DOTALL | Pattern.MULTILINE);
            results = dowait.split(results[1]);
            if (results.length < 1) {
                throw new IOException(
                        "Throttle: Unable to parse response of URL " + url + ". Get retuned " + fetchString);
            }

            // if the jobtracker signalled that the threshold is not exceeded,
            // then we return immediately.
            if (results[0].trim().compareToIgnoreCase("false") == 0) {
                return;
            }

            // The JobTracker has exceeded its threshold and is doing a GC.
            // The client has to wait and retry.
            LOG.warn("Job is being throttled because of resource crunch on the " + "JobTracker. Will retry in "
                    + retry + " seconds..");
            Thread.sleep(retry * 1000L);
        }
    } catch (Exception e) {
        LOG.warn("Job is not being throttled. " + e);
    }
}

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From source file:gov.nih.nci.cabig.ctms.web.taglibs.Functions.java

private static String newlinesToBr(String text, String brTag) {
    if (text == null)
        return null;
    Pattern newlinePattern = StringTools.NEWLINE_PATTERN;
    if (newlinePattern.matcher(text).matches()) {
        return brTag + '\n';
    } else {/*from   www. j  a  v  a  2  s  .com*/
        String[] lines = newlinePattern.split(text);
        if (lines.length == 1) {
            return text;
        } else {
            boolean endsWithNl = newlinePattern.matcher(text).find(text.length() - 1);
            StringBuffer reassembled = new StringBuffer(text.length() + lines.length * brTag.length());
            for (int i = 0; i < lines.length; i++) {
                reassembled.append(lines[i]);
                if (endsWithNl || i < lines.length - 1) {
                    reassembled.append(brTag).append('\n');
                }
            }
            return reassembled.toString();
        }
    }
}

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From source file:com.cburch.draw.shapes.SvgReader.java

private static List<Location> parsePoints(String points) {
    Pattern patt = Pattern.compile("[ ,\n\r\t]+");
    String[] toks = patt.split(points);
    Location[] ret = new Location[toks.length / 2];
    for (int i = 0; i < ret.length; i++) {
        int x = Integer.parseInt(toks[2 * i]);
        int y = Integer.parseInt(toks[2 * i + 1]);
        ret[i] = Location.create(x, y);
    }//  ww w  .j  av a2s .  co m
    return UnmodifiableList.decorate(Arrays.asList(ret));
}

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From source file:org.oscarehr.decisionSupport.model.conditionValue.DSValue.java

public static List<DSValue> createDSValues(String values) {
    String[] dsValuesStr = new String[0];
    boolean doHyphenSearch = true;
    Pattern stringQuotePattern = Pattern.compile("'.+?'");
    if (stringQuotePattern.matcher(values).find()) { //if has a pair of quotes with something in it - treat as a list of strings
        Pattern stringSeparatorPattern = Pattern.compile("'[\\s]*,");
        String[] separatedValues = stringSeparatorPattern.split(values); // [ ',' ] is absolutely illegal in a quoted string
        ArrayList<String> dsValueStrArray = new ArrayList<String>();
        for (String separatedValue : separatedValues) {
            if (!separatedValue.trim().endsWith("'")) {
                separatedValue = separatedValue.trim() + "'";
            }// ww w . j  a  v  a 2s .com
            dsValueStrArray.add(separatedValue);
            _log.debug("Separated Value: " + separatedValue);
        }

        dsValuesStr = dsValueStrArray.toArray(dsValuesStr);
        doHyphenSearch = false;
    } else {
        dsValuesStr = StringUtils.split(values, ",");
    }
    ArrayList<DSValue> dsValues = new ArrayList<DSValue>();
    for (String dsValueStr : dsValuesStr) {
        int hyphenIndex = -1;
        if (doHyphenSearch)
            hyphenIndex = dsValueStr.indexOf("-");
        //if specified range, i.e. "age: 1 y - 5 y"
        if (hyphenIndex != -1) {
            int colonIndex = dsValueStr.indexOf(":");
            String type = "";
            if (colonIndex != -1)
                type = dsValueStr.substring(0, colonIndex + 1);
            String value1 = dsValueStr.substring(colonIndex + 1, hyphenIndex);
            String value2 = dsValueStr.substring(hyphenIndex + 1);
            String dsValueStr1 = type + ">=" + value1;
            String dsValueStr2 = type + "<=" + value2;
            dsValues.add(DSValue.createDSValue(dsValueStr1));
            dsValues.add(DSValue.createDSValue(dsValueStr2));
        } else {
            dsValues.add(DSValue.createDSValue(dsValueStr));
        }
    }
    return dsValues;
}

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From source file:org.oscarehr.decisionSupport.model.conditionValue.DSValue.java

private static int indexOfNotQuoted(String str, String query) {
    if (str.contains("'")) {
        Pattern stringQuotePattern = Pattern.compile("'.+?'");
        Pattern allCharacters = Pattern.compile(".");
        String[] quotedStrings = stringQuotePattern.split(str);
        for (String quotedString : quotedStrings) {
            String blankedString = allCharacters.matcher(quotedString).replaceAll("'");
            str = str.replace(quotedString, blankedString);
        }//  w  ww .j  ava  2s.  co m
    }
    return str.indexOf(query);
}

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From source file:org.opencastproject.util.data.functions.Strings.java

/** Create a split function from a regex pattern. */
public static Function<String, String[]> split(final Pattern splitter) {
    return new Function<String, String[]>() {
        @Override//from  w  w w .  j a va 2 s  . co m
        public String[] apply(String s) {
            return splitter.split(s);
        }
    };
}

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From source file:de.forsthaus.backend.util.IpLocator.java

/**
 * Other than the getters & setters, this is the only method visible to the
 * outside world/*www.  j a  v a 2s  .  c  o m*/
 * 
 * @param ip
 *            The ip address to be located
 * @return IPLocator instance
 * @throws IOException
 *             in case of any error/exception
 */
public static IpLocator locate(String ip) throws IOException {
    final String url = HOSTIP_LOOKUP_URL + ip;
    final URL u = new URL(url);
    final List<String> response = getContent(u);

    final Pattern splitterPattern = Pattern.compile(":");
    final IpLocator ipl = new IpLocator();

    for (final String token : response) {
        final String[] keyValue = splitterPattern.split(token);
        if (keyValue.length != 2) {
            continue;
        }

        final String key = StringUtils.upperCase(keyValue[0]);
        final String value = keyValue[1];
        if (KEY_COUNTRY.equals(key)) {
            ipl.setCountry(value);
        } else if (KEY_CITY.equals(key)) {
            ipl.setCity(value);
        } else if (KEY_LATITUDE.equals(key)) {
            ipl.setLatitude(stringToFloat(value));
        } else if (KEY_LONGITUDE.equals(key)) {
            ipl.setLongitude(stringToFloat(value));
        }
    }
    return ipl;
}

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