Example usage for java.text CharacterIterator first

Introduction

In this page you can find the example usage for java.text CharacterIterator first.

Prototype

public char first();

Source Link

Document

Sets the position to getBeginIndex() and returns the character at that position.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    CharacterIterator it = new StringCharacterIterator("abcd");

    char ch = it.first();
    ch = it.current();//from   w ww. j  av  a2s  . c  o  m
    ch = it.next();
    ch = it.current();
    ch = it.last();
    int pos = it.getIndex();
    ch = it.next();
    pos = it.getIndex();
    ch = it.previous();
    ch = it.setIndex(1);
}

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From source file:Main.java

public static void main(String[] args) {
    String text = "this is a test";
    CharacterIterator it = new StringCharacterIterator(text, 4, 27, 5);

    for (char ch = it.first(); ch != CharacterIterator.DONE; ch = it.next()) {
        System.out.print(ch);/*from w  ww . ja  v  a2  s . c  o  m*/
    }
}

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From source file:Main.java

public static void main(String[] args) {
    String text = "The quick brown fox jumps over the lazy dog";
    CharacterIterator it = new StringCharacterIterator(text);

    int vowels = 0;
    int consonants = 0;

    for (char ch = it.first(); ch != CharacterIterator.DONE; ch = it.next()) {
        if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') {
            vowels = vowels + 1;//  ww  w. j av a 2  s .c  o  m
        } else if (ch != ' ') {
            consonants = consonants + 1;
        }
    }
    System.out.println("Number of vowels: " + vowels);
    System.out.println("Number of consonants: " + consonants);
}

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From source file:Main.java

protected static boolean checkNamePart(String s) {
    if (s.length() == 0)
        return true;
    CharacterIterator cIter = new StringCharacterIterator(s);
    char ch = cIter.first();
    if (!checkNameStartChar(ch))
        return false;
    return checkNameTail(cIter);
}

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From source file:Main.java

protected static boolean checkPrefixPart(String s) {
    if (s.length() == 0)
        return true;
    CharacterIterator cIter = new StringCharacterIterator(s);
    char ch = cIter.first();
    if (!checkNameStartChar(ch))
        return false;
    if (ch == '_') // Can't start with _ (bnodes labels handled separately) 
        return false;
    return checkNameTail(cIter);
}

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From source file:Main.java

public static String escapeNonCustomRegex(String path) {
    /*//from  w  ww  .  j a  v  a  2 s.  com
     * TODO replace with a regular expression
     */
    StringBuilder sb = new StringBuilder();
    boolean inCustomRegion = false;
    CharacterIterator it = new StringCharacterIterator(path);
    for (char ch = it.first(); ch != CharacterIterator.DONE; ch = it.next()) {

        if (ch == CUSTOM_REGEX_START) {
            inCustomRegion = true;
        } else if (ch == CUSTOM_REGEX_END) {
            inCustomRegion = false;
        }

        if (REGEX_SPECIAL_CHARS.contains(ch) && !inCustomRegion) {
            sb.append('\\');
        }

        sb.append(ch);
    }

    return sb.toString();
}

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From source file:com.thinkbiganalytics.feedmgr.rest.support.SystemNamingService.java

public static String generateSystemName(String name) {
    //first trim it
    String systemName = StringUtils.trimToEmpty(name);
    if (StringUtils.isBlank(systemName)) {
        return systemName;
    }//from   w  w w  .  j  a  v a  2s  .c o m
    systemName = systemName.replaceAll(" +", "_");
    systemName = systemName.replaceAll("[^\\w_]", "");

    int i = 0;

    StringBuilder s = new StringBuilder();
    CharacterIterator itr = new StringCharacterIterator(systemName);
    for (char c = itr.first(); c != CharacterIterator.DONE; c = itr.next()) {
        if (Character.isUpperCase(c)) {
            //if it is upper, not at the start and not at the end check to see if i am surrounded by upper then lower it.
            if (i > 0 && i != systemName.length() - 1) {
                char prevChar = systemName.charAt(i - 1);
                char nextChar = systemName.charAt(i + 1);

                if (Character.isUpperCase(prevChar) && (Character.isUpperCase(nextChar)
                        || CharUtils.isAsciiNumeric(nextChar) || '_' == nextChar || '-' == nextChar)) {
                    char lowerChar = Character.toLowerCase(systemName.charAt(i));
                    s.append(lowerChar);
                } else {
                    s.append(c);
                }
            } else if (i > 0 && i == systemName.length() - 1) {
                char prevChar = systemName.charAt(i - 1);
                if (Character.isUpperCase(prevChar) && !CharUtils.isAsciiNumeric(systemName.charAt(i))) {
                    char lowerChar = Character.toLowerCase(systemName.charAt(i));
                    s.append(lowerChar);
                } else {
                    s.append(c);
                }
            } else {
                s.append(c);
            }
        } else {
            s.append(c);
        }

        i++;
    }

    systemName = s.toString();
    systemName = CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE, systemName);
    systemName = CaseFormat.LOWER_HYPHEN.to(CaseFormat.LOWER_UNDERSCORE, systemName);
    systemName = StringUtils.replace(systemName, "__", "_");
    // Truncate length if exceeds Hive limit
    systemName = (systemName.length() > 128 ? systemName.substring(0, 127) : systemName);
    return systemName;
}

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From source file:Utils.java

/**
 * Determine whether the supplied string represents a well-formed fully-qualified Java classname. This utility method enforces
 * no conventions (e.g., packages are all lowercase) nor checks whether the class is available on the classpath.
 * // ww  w  .ja  va  2 s. c o m
 * @param classname
 * @return true if the string is a fully-qualified class name
 */
public static boolean isFullyQualifiedClassname(String classname) {
    if (classname == null)
        return false;
    String[] parts = classname.split("[\\.]");
    if (parts.length == 0)
        return false;
    for (String part : parts) {
        CharacterIterator iter = new StringCharacterIterator(part);
        // Check first character (there should at least be one character for each part) ...
        char c = iter.first();
        if (c == CharacterIterator.DONE)
            return false;
        if (!Character.isJavaIdentifierStart(c) && !Character.isIdentifierIgnorable(c))
            return false;
        c = iter.next();
        // Check the remaining characters, if there are any ...
        while (c != CharacterIterator.DONE) {
            if (!Character.isJavaIdentifierPart(c) && !Character.isIdentifierIgnorable(c))
                return false;
            c = iter.next();
        }
    }
    return true;
}

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From source file:com.woonoz.proxy.servlet.UrlRewriterImpl.java

private static String removeLeadingSlashes(final String text) {
    if (text.isEmpty()) {
        return text;
    }// ww w. ja va  2s  .  c  o  m
    final CharacterIterator it = new StringCharacterIterator(text);
    Character c = it.first();
    while (c.equals('/')) {
        c = it.next();
    }
    return text.substring(it.getIndex());
}

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From source file:org.mortbay.jetty.load.generator.jenkins.result.LoadResultProjectAction.java

public static List<RunInformations> searchRunInformations(String jettyVersion, ElasticHost elasticHost,
        int maxResult) throws IOException {

    String originalJettyVersion = jettyVersion;

    // jettyVersion 9.4.9*
    //in case jettyVersion is 9.4.9.v20180320 we need to replace with 9.4.9*
    if (StringUtils.contains(jettyVersion, 'v')) {
        jettyVersion = StringUtils.substringBeforeLast(jettyVersion, ".v");
    }//  w  w w .j  av  a2 s  . co  m
    // FIXME investigate elastic but query such 9.4.10-SNAPSHOT doesn't work...
    // so using 9.4.10* then filter response back....
    if (StringUtils.contains(jettyVersion, "-SNAPSHOT")) {
        jettyVersion = StringUtils.substringBeforeLast(jettyVersion, "-SNAPSHOT");
    }

    // in case of 9.4.11-NO-LOGGER-SNAPSHOT still not working with elastic
    // here we must have only number or . so remove everything else

    StringBuilder versionQuery = new StringBuilder();
    CharacterIterator ci = new StringCharacterIterator(jettyVersion);
    for (char c = ci.first(); c != CharacterIterator.DONE; c = ci.next()) {
        if (NumberUtils.isCreatable(Character.toString(c)) || c == '.') {
            versionQuery.append(c);
        }
    }

    jettyVersion = versionQuery.toString() + "*";

    try (ElasticResultStore elasticResultStore = elasticHost.buildElasticResultStore(); //
            InputStream inputStream = LoadResultProjectAction.class
                    .getResourceAsStream("/versionResult.json")) {
        String versionResultQuery = IOUtils.toString(inputStream);
        Map<String, String> map = new HashMap<>(1);
        map.put("jettyVersion", jettyVersion);
        map.put("maxResult", Integer.toString(maxResult));
        versionResultQuery = StrSubstitutor.replace(versionResultQuery, map);

        String results = elasticResultStore.search(versionResultQuery);

        List<LoadResult> loadResults = ElasticResultStore
                .map(new HttpContentResponse(null, results.getBytes(), null, null));

        List<RunInformations> runInformations = //
                loadResults.stream() //
                        .filter(loadResult -> StringUtils.equalsIgnoreCase(originalJettyVersion, //
                                loadResult.getServerInfo().getJettyVersion())) //
                        .map(loadResult -> new RunInformations(
                                loadResult.getServerInfo().getJettyVersion() + ":"
                                        + loadResult.getServerInfo().getGitHash(), //
                                loadResult.getCollectorInformations(),
                                StringUtils.lowerCase(loadResult.getTransport())) //
                                        .jettyVersion(loadResult.getServerInfo().getJettyVersion()) //
                                        .estimatedQps(LoadTestResultBuildAction.estimatedQps(
                                                LoadTestResultBuildAction.getLoaderConfig(loadResult))) //
                                        .serverInfo(loadResult.getServerInfo())) //
                        .collect(Collectors.toList());

        Collections.sort(runInformations, Comparator.comparing(o -> o.getStartTimeStamp()));
        return runInformations;
    }

}

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