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      1 /* GENERATED SOURCE. DO NOT MODIFY. */
      2 //  2016 and later: Unicode, Inc. and others.
      3 // License & terms of use: http://www.unicode.org/copyright.html#License
      4 /*
      5 *******************************************************************************
      6 * Copyright (C) 2013-2015, International Business Machines
      7 * Corporation and others.  All Rights Reserved.
      8 *******************************************************************************
      9 * CollationTailoring.java, ported from collationtailoring.h/.cpp
     10 *
     11 * C++ version created on: 2013mar12
     12 * created by: Markus W. Scherer
     13 */
     14 
     15 package android.icu.impl.coll;
     16 
     17 import java.util.Map;
     18 
     19 import android.icu.impl.Norm2AllModes;
     20 import android.icu.impl.Normalizer2Impl;
     21 import android.icu.impl.Trie2_32;
     22 import android.icu.text.UnicodeSet;
     23 import android.icu.util.ULocale;
     24 import android.icu.util.UResourceBundle;
     25 import android.icu.util.VersionInfo;
     26 
     27 /**
     28  * Collation tailoring data & settings.
     29  * This is a container of values for a collation tailoring
     30  * built from rules or deserialized from binary data.
     31  *
     32  * It is logically immutable: Do not modify its values.
     33  * The fields are public for convenience.
     34  * @hide Only a subset of ICU is exposed in Android
     35  */
     36 public final class CollationTailoring {
     37     CollationTailoring(SharedObject.Reference<CollationSettings> baseSettings) {
     38         if(baseSettings != null) {
     39             assert(baseSettings.readOnly().reorderCodes.length == 0);
     40             assert(baseSettings.readOnly().reorderTable == null);
     41             assert(baseSettings.readOnly().minHighNoReorder == 0);
     42             settings = baseSettings.clone();
     43         } else {
     44             settings = new SharedObject.Reference<CollationSettings>(new CollationSettings());
     45         }
     46     }
     47 
     48     void ensureOwnedData() {
     49         if(ownedData == null) {
     50             Normalizer2Impl nfcImpl = Norm2AllModes.getNFCInstance().impl;
     51             ownedData = new CollationData(nfcImpl);
     52         }
     53         data = ownedData;
     54     }
     55 
     56     /** Not thread-safe, call only before sharing. */
     57     void setRules(String r) {
     58         assert rules == null && rulesResource == null;
     59         rules = r;
     60     }
     61     /** Not thread-safe, call only before sharing. */
     62     void setRulesResource(UResourceBundle res) {
     63         assert rules == null && rulesResource == null;
     64         rulesResource = res;
     65     }
     66     public String getRules() {
     67         if (rules != null) {
     68             return rules;
     69         }
     70         if (rulesResource != null) {
     71             return rulesResource.getString();
     72         }
     73         return "";
     74     }
     75 
     76     static VersionInfo makeBaseVersion(VersionInfo ucaVersion) {
     77         return VersionInfo.getInstance(
     78                 VersionInfo.UCOL_BUILDER_VERSION.getMajor(),
     79                 (ucaVersion.getMajor() << 3) + ucaVersion.getMinor(),
     80                 ucaVersion.getMilli() << 6,
     81                 0);
     82     }
     83     void setVersion(int baseVersion, int rulesVersion) {
     84         // See comments for version field.
     85         int r = (rulesVersion >> 16) & 0xff00;
     86         int s = (rulesVersion >> 16) & 0xff;
     87         int t = (rulesVersion >> 8) & 0xff;
     88         int q = rulesVersion & 0xff;
     89         version = (VersionInfo.UCOL_BUILDER_VERSION.getMajor() << 24) |
     90                 (baseVersion & 0xffc000) |  // UCA version u.v.w
     91                 ((r + (r >> 6)) & 0x3f00) |
     92                 (((s << 3) + (s >> 5) + t + (q << 4) + (q >> 4)) & 0xff);
     93     }
     94     int getUCAVersion() {
     95         // Version second byte/bits 23..16 to bits 11..4,
     96         // third byte/bits 15..14 to bits 1..0.
     97         return ((version >> 12) & 0xff0) | ((version >> 14) & 3);
     98     }
     99 
    100     // data for sorting etc.
    101     public CollationData data;  // == base data or ownedData
    102     public SharedObject.Reference<CollationSettings> settings;  // reference-counted
    103     // In Java, deserialize the rules string from the resource bundle
    104     // only when it is used. (It can be large and is rarely used.)
    105     private String rules;
    106     private UResourceBundle rulesResource;
    107     // The locale is null (C++: bogus) when built from rules or constructed from a binary blob.
    108     // It can then be set by the service registration code which is thread-safe.
    109     public ULocale actualLocale = ULocale.ROOT;
    110     // UCA version u.v.w & rules version r.s.t.q:
    111     // version[0]: builder version (runtime version is mixed in at runtime)
    112     // version[1]: bits 7..3=u, bits 2..0=v
    113     // version[2]: bits 7..6=w, bits 5..0=r
    114     // version[3]= (s<<5)+(s>>3)+t+(q<<4)+(q>>4)
    115     public int version = 0;
    116 
    117     // owned objects
    118     CollationData ownedData;
    119     Trie2_32 trie;
    120     UnicodeSet unsafeBackwardSet;
    121     public Map<Integer, Integer> maxExpansions;
    122 
    123     /*
    124      * Not Cloneable: A CollationTailoring cannot be copied.
    125      * It is immutable, and the data trie cannot be copied either.
    126      */
    127 }
    128