Example usage for java.text RuleBasedCollator RuleBasedCollator

List of usage examples for java.text RuleBasedCollator RuleBasedCollator

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Introduction

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

Prototype

private RuleBasedCollator(RuleBasedCollator that)

Source Link

Document

"Copy constructor."

Usage

From source file:RulesDemo.java

static public void main(String[] args) {

    String englishRules = ("< a,A < b,B < c,C < d,D < e,E < f,F " + "< g,G < h,H < i,I < j,J < k,K < l,L "
            + "< m,M < n,N < o,O < p,P < q,Q < r,R " + "< s,S < t,T < u,U < v,V < w,W < x,X " + "< y,Y < z,Z");

    String smallnTilde = new String("\u00F1");
    String capitalNTilde = new String("\u00D1");

    String traditionalSpanishRules = ("< a,A < b,B < c,C " + "< ch, cH, Ch, CH " + "< d,D < e,E < f,F "
            + "< g,G < h,H < i,I < j,J < k,K < l,L " + "< ll, lL, Ll, LL " + "< m,M < n,N " + "< " + smallnTilde
            + "," + capitalNTilde + " " + "< o,O < p,P < q,Q < r,R " + "< s,S < t,T < u,U < v,V < w,W < x,X "
            + "< y,Y < z,Z");

    String[] words = { "luz", "curioso", "llama", "chalina" };

    try {/*from   w  w w .ja va  2  s  . co m*/
        RuleBasedCollator enCollator = new RuleBasedCollator(englishRules);
        RuleBasedCollator spCollator = new RuleBasedCollator(traditionalSpanishRules);

        sortStrings(enCollator, words);
        printStrings(words);

        System.out.println();

        sortStrings(spCollator, words);
        printStrings(words);
    } catch (ParseException pe) {
        System.out.println("Parse exception for rules");
    }
}

From source file:com.all.client.model.predicate.BaseCollatorPredicate.java

private void initialize() {
    rules = ((RuleBasedCollator) Collator.getInstance(Locale.US)).getRules();
    refineRules();/*from   w  w w.  j a v a 2 s.com*/

    try {
        collator = new RuleBasedCollator(rules);
        collator.setStrength(Collator.PRIMARY);
    } catch (ParseException e) {
        log.error("Error while parsing collator rules [" + rules + "]", e);
    }
}

From source file:dk.statsbiblioteket.util.CachedCollator.java

private static Collator fixCollator(Collator collator, boolean check) {
    if (!(collator instanceof RuleBasedCollator)) {
        log.warn(String.format("fixCollator expected a RuleBasedCollator but got %s. Unable to update Collator",
                collator.getClass()));/*from ww w .ja v a 2  s. c  o  m*/
        return collator;
    }
    String rules = ((RuleBasedCollator) collator).getRules();
    if (check && !rules.contains("<' '<'\u005f'")) {
        log.debug("fixCollator: The received Collator already sorts spaces first");
        return collator;
    }
    try {
        RuleBasedCollator newCollator = new RuleBasedCollator(rules.replace("<'\u005f'", "<' '<'\u005f'"));
        log.trace("Successfully updated Collator to prioritize spaces before other characters");
        return newCollator;
    } catch (ParseException e) {
        throw new RuntimeException("ParseException while parsing\n" + rules, e);
    }
}

From source file:com.ecyrd.jspwiki.plugin.AbstractReferralPlugin.java

/**
 * Helper method to initialize the comparator for this page.
 *///from  w ww .j  ava  2 s. co m
private void initSorter(WikiContext context, Map params) {
    String order = (String) params.get(PARAM_SORTORDER);
    if (order == null || order.length() == 0) {
        // Use the configured comparator
        m_sorter = context.getEngine().getPageSorter();
    } else if (order.equalsIgnoreCase(PARAM_SORTORDER_JAVA)) {
        // use Java "natural" ordering
        m_sorter = new PageSorter(JavaNaturalComparator.DEFAULT_JAVA_COMPARATOR);
    } else if (order.equalsIgnoreCase(PARAM_SORTORDER_LOCALE)) {
        // use this locale's ordering
        m_sorter = new PageSorter(LocaleComparator.DEFAULT_LOCALE_COMPARATOR);
    } else if (order.equalsIgnoreCase(PARAM_SORTORDER_HUMAN)) {
        // use human ordering
        m_sorter = new PageSorter(HumanComparator.DEFAULT_HUMAN_COMPARATOR);
    } else
        try {
            Collator collator = new RuleBasedCollator(order);
            collator.setStrength(Collator.PRIMARY);
            m_sorter = new PageSorter(new CollatorComparator(collator));
        } catch (ParseException pe) {
            log.info("Failed to parse requested collator - using default ordering", pe);
            m_sorter = context.getEngine().getPageSorter();
        }
}

From source file:nl.inl.util.StringUtil.java

/**
 * Returns a new collator that takes spaces into account (unlike the default Java collators,
 * which ignore spaces), so we can sort "per word".
 *
 * Example: with the default collator, "cat dog" would be sorted after "catapult" (a after d).
 * With the per-word collator, "cat dog" would be sorted before "catapult" (cat before
 * catapult).//from  www. j  a  v  a  2  s .c  o  m
 *
 * NOTE: the base collator must be a RuleBasedCollator, but the argument has type Collator for
 * convenience (not having to explicitly cast when calling)
 *
 * @param base
 *            the collator to base the per-word collator on.
 * @return the per-word collator
 */
public static RuleBasedCollator getPerWordCollator(Collator base) {
    if (!(base instanceof RuleBasedCollator))
        throw new IllegalArgumentException("Base collator must be rule-based!");

    try {
        // Insert a collation rule to sort the space character before the underscore
        RuleBasedCollator ruleBasedCollator = (RuleBasedCollator) base;
        String rules = ruleBasedCollator.getRules();
        return new RuleBasedCollator(rules.replaceAll("<'_'", "<' '<'_'"));
    } catch (ParseException e) {
        throw new RuntimeException(e);
    }
}

From source file:nl.inl.util.StringUtil.java

/**
 * Returns a new collator that sort digits at the end of the alphabet instead of the beginning.
 *
 * NOTE: the base collator must be a RuleBasedCollator, but the argument has type Collator for
 * convenience (not having to explicitly cast when calling)
 *
 * @param base// ww w . j  a  v a  2 s. co m
 *            the collator to base the new collator on.
 * @return the new collator
 */
public static RuleBasedCollator getSortDigitsAtEndCollator(Collator base) {
    if (!(base instanceof RuleBasedCollator))
        throw new IllegalArgumentException("Base collator must be rule-based!");

    try {
        // Insert a collation rule to sort the space character before the underscore
        RuleBasedCollator ruleBasedCollator = (RuleBasedCollator) base;
        String rules = ruleBasedCollator.getRules();
        rules = rules.replaceAll("<0<1<2<3<4<5<6<7<8<9", "");
        rules += "<0<1<2<3<4<5<6<7<8<9";
        return new RuleBasedCollator(rules);
    } catch (ParseException e) {
        throw new RuntimeException(e);
    }
}

From source file:org.apache.solr.analysis.CollationKeyFilterFactory.java

private Collator createFromRules(String fileName, ResourceLoader loader) {
    InputStream input = null;/*from w  w  w.j  av a 2 s.  co m*/
    try {
        input = loader.openResource(fileName);
        String rules = IOUtils.toString(input, "UTF-8");
        return new RuleBasedCollator(rules);
    } catch (IOException e) {
        // io error
        throw new RuntimeException(e);
    } catch (ParseException e) {
        // invalid rules
        throw new RuntimeException(e);
    } finally {
        IOUtils.closeQuietly(input);
    }
}

From source file:org.apache.solr.schema.CollationField.java

/**
 * Read custom rules from a file, and create a RuleBasedCollator
 * The file cannot support comments, as # might be in the rules!
 *//*from w w  w .j a v  a2  s.  c  o m*/
private Collator createFromRules(String fileName, ResourceLoader loader) {
    InputStream input = null;
    try {
        input = loader.openResource(fileName);
        String rules = IOUtils.toString(input, "UTF-8");
        return new RuleBasedCollator(rules);
    } catch (IOException | ParseException e) {
        // io error or invalid rules
        throw new RuntimeException(e);
    } finally {
        IOUtils.closeQuietly(input);
    }
}

From source file:org.apache.solr.schema.TestCollationField.java

/**
 * Ugly: but what to do? We want to test custom sort, which reads rules in as a resource.
 * These are largish files, and jvm-specific (as our documentation says, you should always
 * look out for jvm differences with collation).
 * So it's preferable to create this file on-the-fly.
 */// ww  w. j  a  v a2s. c o  m
public static String setupSolrHome() throws Exception {
    // make a solr home underneath the test's TEMP_DIR
    File tmpFile = createTempDir("collation1").toFile();

    // make data and conf dirs
    new File(tmpFile, "data").mkdir();
    File confDir = new File(tmpFile + "/collection1", "conf");
    confDir.mkdirs();

    // copy over configuration files
    FileUtils.copyFile(getFile("solr/collection1/conf/solrconfig-basic.xml"),
            new File(confDir, "solrconfig.xml"));
    FileUtils.copyFile(getFile("solr/collection1/conf/solrconfig.snippet.randomindexconfig.xml"),
            new File(confDir, "solrconfig.snippet.randomindexconfig.xml"));
    FileUtils.copyFile(getFile("solr/collection1/conf/schema-collate.xml"), new File(confDir, "schema.xml"));

    // generate custom collation rules (DIN 5007-2), saving to customrules.dat
    RuleBasedCollator baseCollator = (RuleBasedCollator) Collator.getInstance(new Locale("de", "DE"));

    String DIN5007_2_tailorings = "& ae , a\u0308 & AE , A\u0308" + "& oe , o\u0308 & OE , O\u0308"
            + "& ue , u\u0308 & UE , u\u0308";

    RuleBasedCollator tailoredCollator = new RuleBasedCollator(baseCollator.getRules() + DIN5007_2_tailorings);
    String tailoredRules = tailoredCollator.getRules();
    FileOutputStream os = new FileOutputStream(new File(confDir, "customrules.dat"));
    IOUtils.write(tailoredRules, os, "UTF-8");
    os.close();

    return tmpFile.getAbsolutePath();
}

From source file:org.apache.solr.schema.TestCollationFieldDocValues.java

/**
 * Ugly: but what to do? We want to test custom sort, which reads rules in as a resource.
 * These are largish files, and jvm-specific (as our documentation says, you should always
 * look out for jvm differences with collation).
 * So it's preferable to create this file on-the-fly.
 *///ww w .  j a  va  2s .c  o  m
public static String setupSolrHome() throws Exception {
    // make a solr home underneath the test's TEMP_DIR
    File tmpFile = createTempDir("collation1").toFile();

    // make data and conf dirs
    new File(tmpFile, "data").mkdir();
    File confDir = new File(tmpFile + "/collection1", "conf");
    confDir.mkdirs();

    // copy over configuration files
    FileUtils.copyFile(getFile("solr/collection1/conf/solrconfig-basic.xml"),
            new File(confDir, "solrconfig.xml"));
    FileUtils.copyFile(getFile("solr/collection1/conf/solrconfig.snippet.randomindexconfig.xml"),
            new File(confDir, "solrconfig.snippet.randomindexconfig.xml"));
    FileUtils.copyFile(getFile("solr/collection1/conf/schema-collate-dv.xml"), new File(confDir, "schema.xml"));

    // generate custom collation rules (DIN 5007-2), saving to customrules.dat
    RuleBasedCollator baseCollator = (RuleBasedCollator) Collator.getInstance(new Locale("de", "DE"));

    String DIN5007_2_tailorings = "& ae , a\u0308 & AE , A\u0308" + "& oe , o\u0308 & OE , O\u0308"
            + "& ue , u\u0308 & UE , u\u0308";

    RuleBasedCollator tailoredCollator = new RuleBasedCollator(baseCollator.getRules() + DIN5007_2_tailorings);
    String tailoredRules = tailoredCollator.getRules();
    FileOutputStream os = new FileOutputStream(new File(confDir, "customrules.dat"));
    IOUtils.write(tailoredRules, os, "UTF-8");
    os.close();

    return tmpFile.getAbsolutePath();
}