refactor: FindMatches class

src/org/omegat/core/statistics/CalcMatchStatistics.java

@@ -110,7 +110,7 @@ public class CalcMatchStatistics extends LongProcessThread {
     public CalcMatchStatistics(IStatsConsumer callback, boolean perFile) {
         this(Core.getProject(), Core.getSegmenter(), callback, perFile,
                 Preferences.getPreferenceDefault(Preferences.EXT_TMX_FUZZY_MATCH_THRESHOLD,
-                OConsts.FUZZY_MATCH_THRESHOLD));
+                        OConsts.FUZZY_MATCH_THRESHOLD));
     }
 
     public CalcMatchStatistics(IProject project, Segmenter segmenter, IStatsConsumer callback,
@@ -119,8 +119,7 @@ public CalcMatchStatistics(IProject project, Segmenter segmenter, IStatsConsumer
         this.callback = callback;
         this.perFile = perFile;
         finder = ThreadLocal.withInitial(
-                () -> new FindMatches(project, segmenter, OConsts.MAX_NEAR_STRINGS, true,
-                        false, false, threshold));
+                () -> new FindMatches(project, segmenter, OConsts.MAX_NEAR_STRINGS, false, threshold));
     }
 
     @Override
@@ -313,7 +312,7 @@ Optional<MatchStatCounts> calcSimilarity(List<SourceTextEntry> untranslatedEntri
     int calcMaxSimilarity(SourceTextEntry ste) {
         String srcNoXmlTags = removeXmlTags(ste);
         FindMatches localFinder = finder.get();
-        List<NearString> nears = localFinder.search(srcNoXmlTags, true, false, this::isInterrupted);
+        List<NearString> nears = localFinder.search(srcNoXmlTags, false, this::isInterrupted);
         final Token[] strTokensStem = localFinder.tokenizeAll(ste.getSrcText());
         int maxSimilarity = 0;
         CACHE: for (NearString near : nears) {

src/org/omegat/core/statistics/FindMatches.java

@@ -126,27 +126,15 @@ public class FindMatches {
     /** Tokens for original string, includes numbers and tags. */
     private Token[] strTokensAll;
 
-    // This finder used for search separate segment matches
-    private FindMatches separateSegmentMatcher;
-
     private final int fuzzyMatchThreshold;
 
-    private final boolean applyThreshold;
-
     private final Segmenter segmenter;
 
-    /**
-     * @param searchExactlyTheSame
-     *            allows to search similarities with the same text as source
-     *            segment. This mode used only for separate sentence match in
-     *            paragraph project, i.e. where source is just part of current
-     *            source.
-     */
+    @Deprecated(since = "6.1.0")
     public FindMatches(IProject project, int maxCount, boolean allowSeparateSegmentMatch,
             boolean searchExactlyTheSame) {
-        this(project, Core.getSegmenter(), maxCount, allowSeparateSegmentMatch, searchExactlyTheSame, true,
-                Preferences.getPreferenceDefault(Preferences.EXT_TMX_FUZZY_MATCH_THRESHOLD,
-                        OConsts.FUZZY_MATCH_THRESHOLD));
+        this(project, Core.getSegmenter(), maxCount, searchExactlyTheSame, Preferences.getPreferenceDefault(
+                Preferences.EXT_TMX_FUZZY_MATCH_THRESHOLD, OConsts.FUZZY_MATCH_THRESHOLD));
     }
 
     /**
@@ -166,19 +154,21 @@ public FindMatches(IProject project, int maxCount, boolean allowSeparateSegmentM
      * @param threshold
      *            threshold to use.
      */
-    public FindMatches(IProject project, Segmenter segmenter, int maxCount, boolean allowSeparateSegmentMatch,
-            boolean searchExactlyTheSame, boolean applyThreshold, int threshold) {
+    public FindMatches(IProject project, Segmenter segmenter, int maxCount,
+            boolean searchExactlyTheSame, int threshold) {
         this.project = project;
         this.segmenter = segmenter;
         this.tok = project.getSourceTokenizer();
         this.srcLocale = project.getProjectProperties().getSourceLanguage().getLocale();
         this.maxCount = maxCount;
         this.searchExactlyTheSame = searchExactlyTheSame;
-        if (allowSeparateSegmentMatch && !project.getProjectProperties().isSentenceSegmentingEnabled()) {
-            separateSegmentMatcher = new FindMatches(project, segmenter, 1, false, true, true, threshold);
-        }
         this.fuzzyMatchThreshold = threshold;
-        this.applyThreshold = applyThreshold;
+    }
+
+    @Deprecated(since = "6.1.0")
+    public List<NearString> search(final String searchText, final boolean requiresTranslation,
+            final boolean fillSimilarityData, final IStopped stop) throws StoppedException {
+        return search(searchText, fillSimilarityData, stop);
     }
 
     /**
@@ -195,8 +185,33 @@ public FindMatches(IProject project, Segmenter segmenter, int maxCount, boolean
      * @throws StoppedException
      *        raised when stopped during a search process.
      */
-    public List<NearString> search(String searchText, boolean requiresTranslation, boolean fillSimilarityData,
-            IStopped stop) throws StoppedException {
+    public List<NearString> search(String searchText, boolean fillSimilarityData, IStopped stop)
+            throws StoppedException {
+        return search(searchText, fillSimilarityData, stop,
+                !project.getProjectProperties().isSentenceSegmentingEnabled());
+    }
+
+    /**
+     * Search Translation memories.
+     * <p>
+     * Internal method to handle search conditions.
+     * It is accessible as package-private for testing.
+     *
+     * @param searchText
+     *        target segment or term to search.
+     * @param fillSimilarityData
+     *        fill similarity data into the result of NearString objects.
+     * @param stop
+     *        IStopped callback object to indicate cancel operation.
+     * @param runSeparateSegmentMatch
+     *        Also search with segmented terms search.
+     * @return
+     *        List of NearString objects.
+     * @throws StoppedException
+     *        When stopped the process during search.
+     */
+    List<NearString> search(String searchText, boolean fillSimilarityData, IStopped stop,
+                            boolean runSeparateSegmentMatch) throws StoppedException {
         result = new ArrayList<>(OConsts.MAX_NEAR_STRINGS + 1);
         srcText = searchText;
         removedText = "";
@@ -226,7 +241,7 @@ public List<NearString> search(String searchText, boolean requiresTranslation, b
                     // skip original==original entry comparison
                     return;
                 }
-                if (requiresTranslation && trans.translation == null) {
+                if (trans.translation == null) {
                     return;
                 }
                 String fileName = project.isOrphaned(source) ? ORPHANED_FILE_NAME : null;
@@ -241,7 +256,7 @@ public List<NearString> search(String searchText, boolean requiresTranslation, b
                 // skip original==original entry comparison
                 return;
             }
-            if (requiresTranslation && trans.translation == null) {
+            if (trans.translation == null) {
                 return;
             }
             String fileName = project.isOrphaned(source) ? ORPHANED_FILE_NAME : null;
@@ -255,7 +270,6 @@ public List<NearString> search(String searchText, boolean requiresTranslation, b
          */
         int foreignPenalty = Preferences.getPreferenceDefault(Preferences.PENALTY_FOR_FOREIGN_MATCHES,
                 Preferences.PENALTY_FOR_FOREIGN_MATCHES_DEFAULT);
-        // travel by translation memories
         for (Map.Entry<String, ExternalTMX> en : project.getTransMemories().entrySet()) {
             int penalty = 0;
             Matcher matcher = SEARCH_FOR_PENALTY.matcher(en.getKey());
@@ -265,11 +279,11 @@ public List<NearString> search(String searchText, boolean requiresTranslation, b
             for (ITMXEntry tmen : en.getValue().getEntries()) {
                 checkStopped(stop);
                 if (tmen.getSourceText() == null) {
-                    // Not all TMX entries have a source; in that case there can
-                    // be no meaningful match, so skip.
+                    // Not all TMX entries have a source; skip it in
+                    // the case, because of no meaningful.
                     continue;
                 }
-                if (requiresTranslation && tmen.getTranslationText() == null) {
+                if (tmen.getTranslationText() == null) {
                     continue;
                 }
                 int tmenPenalty = penalty;
@@ -290,7 +304,9 @@ public List<NearString> search(String searchText, boolean requiresTranslation, b
                         ste.isSourceTranslationFuzzy(), 0);
             }
         }
-        if (separateSegmentMatcher != null) {
+        if (runSeparateSegmentMatch) {
+            FindMatches separateSegmentMatcher = new FindMatches(project, segmenter, 1, true,
+                    fuzzyMatchThreshold);
             // split paragraph even when segmentation disabled, then find
             // matches for every segment
             List<StringBuilder> spaces = new ArrayList<>();
@@ -303,9 +319,10 @@ public List<NearString> search(String searchText, boolean requiresTranslation, b
                 List<String> ftrans = new ArrayList<>(segments.size());
                 // multiple segments
                 for (String onesrc : segments) {
-                    // find match for a separate segment
-                    List<NearString> segmentMatch = separateSegmentMatcher.search(onesrc, requiresTranslation,
-                            false, stop);
+                    // find match for a separate segment.
+                    // WARN: the 5th argument should be
+                    // `false` to avoid an infinite-loop.
+                    List<NearString> segmentMatch = separateSegmentMatcher.search(onesrc, false, stop, false);
                     if (!segmentMatch.isEmpty()
                             && segmentMatch.get(0).scores[0].score >= SUBSEGMENT_MATCH_THRESHOLD) {
                         fsrc.add(segmentMatch.get(0).source);
@@ -415,7 +432,7 @@ public void processEntry(EntryKey key, ITMXEntry entry, String tmxName,
         }
 
         // BUGS#1236 - stat display does not use threshold config check
-        if (applyThreshold && similarityStem < fuzzyMatchThreshold
+        if (fuzzyMatchThreshold > 0 && similarityStem < fuzzyMatchThreshold
                 && similarityNoStem < fuzzyMatchThreshold && simAdjusted < fuzzyMatchThreshold) {
             return;
         }

src/org/omegat/gui/matches/FindMatchesThread.java

@@ -7,6 +7,7 @@
                2008 Alex Buloichik
                2012 Thomas Cordonnier, Martin Fleurke
                2013 Aaron Madlon-Kay
+               2024 Hiroshi Miura
                Home page: https://www.omegat.org/
                Support center: https://omegat.org/support
 
@@ -32,17 +33,22 @@
 import java.util.List;
 import java.util.logging.Logger;
 
+import org.omegat.core.Core;
 import org.omegat.core.data.IProject;
 import org.omegat.core.data.SourceTextEntry;
+import org.omegat.core.events.IStopped;
 import org.omegat.core.matching.NearString;
+import org.omegat.core.segmentation.Segmenter;
 import org.omegat.core.statistics.FindMatches;
 import org.omegat.gui.common.EntryInfoSearchThread;
 import org.omegat.util.OConsts;
+import org.omegat.util.Preferences;
 
 /**
- * Find matches in separate thread then show result in the matches pane.
+ * Find matches in separate thread then show a result in the matches' pane.
  *
  * @author Alex Buloichik ([email protected])
+ * @author Hiroshi Miura
  */
 public class FindMatchesThread extends EntryInfoSearchThread<List<NearString>> {
     private static final Logger LOGGER = Logger.getLogger(FindMatchesThread.class.getName());
@@ -52,9 +58,9 @@ public class FindMatchesThread extends EntryInfoSearchThread<List<NearString>> {
 
     /**
      * Entry which is processed currently.
-     *
-     * If entry in controller was changed, it means user has moved to another entry, and there is no sense to
-     * continue.
+     * <p>
+     * If entry in controller was changed, it means the user has moved to
+     * another entry, and there is no sense to continue.
      */
     private final SourceTextEntry processedEntry;
 
@@ -79,12 +85,26 @@ protected List<NearString> search() throws Exception {
         long before = System.currentTimeMillis();
 
         try {
-            FindMatches finder = new FindMatches(project, OConsts.MAX_NEAR_STRINGS, true, false);
-            List<NearString> result = finder.search(processedEntry.getSrcText(), true, true, this::isEntryChanged);
+            List<NearString> result = finderSearch(project, Core.getSegmenter(), processedEntry.getSrcText(),
+                    this::isEntryChanged, Preferences.getPreferenceDefault(
+                            Preferences.EXT_TMX_FUZZY_MATCH_THRESHOLD, OConsts.FUZZY_MATCH_THRESHOLD));
             LOGGER.finer(() -> "Time for find matches: " + (System.currentTimeMillis() - before));
             return result;
         } catch (FindMatches.StoppedException ex) {
             throw new EntryChangedException();
         }
     }
+
+    /**
+     * Search matches (static for test purpose).
+     * @param project OmegaT project.
+     * @param srcText source text to look for.
+     * @param isEntryChanged stop and raise StopException when it returns true.
+     * @return result as a list of NearString.
+     */
+    protected static List<NearString> finderSearch(IProject project, Segmenter segmenter, String srcText,
+                                                   IStopped isEntryChanged, int threshold) {
+        FindMatches finder = new FindMatches(project, segmenter, OConsts.MAX_NEAR_STRINGS, false, threshold);
+        return finder.search(srcText, true, isEntryChanged);
+    }
 }

test/data/tmx/penalty-010/segment_1.tmx

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE tmx PUBLIC "-//LISA OSCAR:1998//DTD for Translation Memory eXchange//EN" "tmx14.dtd">
+
+<tmx version="1.4">
+    <header creationtoolversion="0.1" adminlang="en" segtype="paragraph" creationdate="20230930T155211Z" datatype="unknown" srclang="ja" creationtool="txt2tmx" o-tmf="TextEdit"></header>
+    <body>
+        <tu>
+            <tuv xml:lang="fr">
+                <seg>weird behavior</seg>
+            </tuv>
+            <tuv xml:lang="ja">
+                <seg>地力の搾取と浪費が現われる。(1)</seg>
+            </tuv>
+        </tu>
+    </body>
+</tmx>

test/data/tmx/test-multiple-entries.tmx

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE tmx SYSTEM "tmx14.dtd">
+<tmx version="1.4">
+<header  datatype="plaintext" srclang="en-US" adminlang="EN-US" o-tmf="OmegaT TMX" segtype="sentence"
+creationtoolversion="test" creationtool="test"/>
+  <body>
+<!-- Default translations -->
+    <tu>
+      <tuv lang="en-US">
+        <seg>Other</seg>
+      </tuv>
+      <tuv lang="co" changeid="id" changedate="20200523T143256Z">
+        <seg>Altre</seg>
+      </tuv>
+    </tu>
+    <tu>
+      <tuv lang="en-US">
+        <seg>For installation on Linux.</seg>
+      </tuv>
+      <tuv lang="co" changeid="id" changedate="20200526T131725Z" creationid="id" creationdate="20200526T131725Z">
+        <seg>Per l’installazioni nant’à i sistemi Linux.</seg>
+      </tuv>
+    </tu>
+    <tu>
+      <tuv lang="en-US">
+        <seg>For installation on other operating systems (such as FreeBSD and Solaris).</seg>
+      </tuv>
+      <tuv lang="co" changeid="id" changedate="20200526T131840Z" creationid="id"
+      creationdate="20200526T131840Z">
+        <seg>Per l’installazioni nant’à d’altri sistemi (cum’è FreeBSD è Solaris).</seg>
+      </tuv>
+    </tu>
+<!-- Alternative translations -->
+    <tu>
+      <prop type="file">website/download.html</prop>
+      <prop type="prev">For installation on Linux.</prop>
+      <prop type="next">For installation on other operating systems (such as FreeBSD and Solaris).&lt;br0/></prop>
+      <tuv lang="en-US">
+        <seg>Other</seg>
+      </tuv>
+      <tuv lang="co" changeid="id" changedate="20200526T131742Z" creationid="id" creationdate="20200526T131742Z">
+        <seg>Altri</seg>
+      </tuv>
+    </tu>
+  </body>
+</tmx>

test/src/org/omegat/core/statistics/CalcMatchStatisticsTest.java

@@ -48,6 +48,7 @@
 import org.omegat.core.data.ProtectedPart;
 import org.omegat.core.data.SourceTextEntry;
 import org.omegat.core.data.TMXEntry;
+import org.omegat.core.segmentation.SRX;
 import org.omegat.core.segmentation.Segmenter;
 import org.omegat.filters2.FilterContext;
 import org.omegat.filters2.IFilter;
@@ -68,7 +69,7 @@ public class CalcMatchStatisticsTest {
     public void testCalcMatchStatics() throws Exception {
         TestProject project = new TestProject(new ProjectPropertiesTest());
         IStatsConsumer callback = new TestStatsConsumer();
-        Segmenter segmenter = new Segmenter(Preferences.getSRX());
+        Segmenter segmenter = new Segmenter(SRX.getDefault());
         CalcMatchStatisticsMock calcMatchStatistics = new CalcMatchStatisticsMock(project, segmenter,
                 callback, 30);
         calcMatchStatistics.start();
@@ -123,7 +124,7 @@ public void testCalcMatchStatics() throws Exception {
         Assert.assertEquals("5699", result[7][4]);
 
         // change threshold
-        calcMatchStatistics = new CalcMatchStatisticsMock(project, segmenter, callback, 70);
+        calcMatchStatistics = new CalcMatchStatisticsMock(project, segmenter, callback, -1);
         calcMatchStatistics.start();
         try {
             calcMatchStatistics.join();