Example usage for java.text RuleBasedCollator getRules

Introduction

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

Prototype

public String getRules() 

Source Link

Document

Gets the table-based rules for the collation object.

Usage

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)./*w ww.  j av  a2  s  .  com*/
 *
 * 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);
    }
}

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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/*from   www .java  2  s. c  om*/
 *            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);
    }
}

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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.
 *///from  ww  w  .  ja v a 2  s  . co  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();
}

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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.
 *//*from   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();
}

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From source file:org.sakaiproject.tool.assessment.util.BeanSortComparator.java

private int subCompare(String s1, String s2) {
    //we do not want to use null values for sorting
    if (s1 == null) {
        s1 = "";/*from ww  w .  jav  a2 s  .  co m*/
    }

    if (s2 == null) {
        s2 = "";
    }

    // Deal with n/a case
    if (s1.toLowerCase().startsWith("n/a") && !s2.toLowerCase().startsWith("n/a"))
        return 1;

    if (s2.toLowerCase().startsWith("n/a") && !s1.toLowerCase().startsWith("n/a"))
        return -1;

    String finalS1 = s1.replaceAll("<.*?>", "");
    String finalS2 = s2.replaceAll("<.*?>", "");
    RuleBasedCollator collator_ini = (RuleBasedCollator) Collator.getInstance();
    try {
        RuleBasedCollator collator = new RuleBasedCollator(
                collator_ini.getRules().replaceAll("<'\u005f'", "<' '<'\u005f'"));
        return collator.compare(finalS1.toLowerCase(), finalS2.toLowerCase());
    } catch (ParseException e) {
    }
    return Collator.getInstance().compare(finalS1.toLowerCase(), finalS2.toLowerCase());
}

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