feat(core): Support DatePrefix for auto config. (#583)

Author: Ahoo-Wang

cosid-core/src/main/java/me/ahoo/cosid/converter/DatePrefixIdConverter.java

@@ -23,14 +23,12 @@
 import java.time.format.DateTimeFormatter;
 
 public class DatePrefixIdConverter implements IdConverter, Decorator<IdConverter> {
-    private final String prefix;
     private final String pattern;
     private final DateTimeFormatter formatter;
     private final String delimiter;
     private final IdConverter actual;
 
-    public DatePrefixIdConverter(String prefix, String pattern, String delimiter, IdConverter actual) {
-        this.prefix = prefix;
+    public DatePrefixIdConverter(String pattern, String delimiter, IdConverter actual) {
         this.pattern = pattern;
         this.formatter = DateTimeFormatter.ofPattern(pattern);
         this.delimiter = delimiter;
@@ -41,12 +39,12 @@ public DatePrefixIdConverter(String prefix, String pattern, String delimiter, Id
     @Nonnull
     @Override
     public String asString(long id) {
-        return prefix + LocalDateTime.now().format(formatter) + delimiter + actual.asString(id);
+        return LocalDateTime.now().format(formatter) + delimiter + actual.asString(id);
     }
 
     @Override
     public long asLong(@Nonnull String idString) {
-        int appendedLength = prefix.length() + pattern.length() + delimiter.length();
+        int appendedLength = pattern.length() + delimiter.length();
         String idStr = idString.substring(appendedLength);
         return actual.asLong(idStr);
     }
@@ -59,6 +57,6 @@ public IdConverter getActual() {
 
     @Override
     public Stat stat() {
-        return new DatePrefixConverterStat(getClass().getSimpleName(), prefix, formatter.toString(), actual.stat());
+        return new DatePrefixConverterStat(getClass().getSimpleName(), pattern, actual.stat());
     }
 }

cosid-core/src/main/java/me/ahoo/cosid/stat/converter/DatePrefixConverterStat.java

@@ -15,5 +15,5 @@
 
 import me.ahoo.cosid.stat.Stat;
 
-public record DatePrefixConverterStat(String kind, String prefix, String formatter, Stat actual) implements Stat {
+public record DatePrefixConverterStat(String kind, String pattern, Stat actual) implements Stat {
 }

cosid-core/src/test/java/me/ahoo/cosid/converter/DatePrefixIdConverterTest.java

@@ -25,19 +25,18 @@
 import static org.hamcrest.Matchers.instanceOf;
 
 class DatePrefixIdConverterTest {
-    private static final String PREFIX = "prefix_";
-    private final DatePrefixIdConverter idConverter = new DatePrefixIdConverter(PREFIX, "yyMMdd", DEFAULT_DELIMITER, ToStringIdConverter.INSTANCE);
+    private final DatePrefixIdConverter idConverter = new DatePrefixIdConverter("yyMMdd", DEFAULT_DELIMITER, ToStringIdConverter.INSTANCE);
 
     @Test
     void asString() {
         String idString = idConverter.asString(1);
-        String expected = PREFIX + LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyMMdd")) + DEFAULT_DELIMITER + "1";
+        String expected = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyMMdd")) + DEFAULT_DELIMITER + "1";
         assertThat(idString, equalTo(expected));
     }
 
     @Test
     void asLong() {
-        assertThat(idConverter.asLong("prefix_240618-1"), equalTo(1L));
+        assertThat(idConverter.asLong("240618-1"), equalTo(1L));
     }
 
     @Test

cosid-spring-boot-starter/src/main/java/me/ahoo/cosid/spring/boot/starter/IdConverterDecorator.java

@@ -15,6 +15,7 @@
 
 import me.ahoo.cosid.IdConverter;
 import me.ahoo.cosid.IdGenerator;
+import me.ahoo.cosid.converter.DatePrefixIdConverter;
 import me.ahoo.cosid.converter.PrefixIdConverter;
 import me.ahoo.cosid.converter.Radix36IdConverter;
 import me.ahoo.cosid.converter.Radix62IdConverter;
@@ -25,16 +26,17 @@
 import com.google.common.base.Strings;
 
 import java.lang.reflect.InvocationTargetException;
+import java.util.Date;
 
 public abstract class IdConverterDecorator<T extends IdGenerator> {
     protected final T idGenerator;
     protected final IdConverterDefinition converterDefinition;
-    
+
     protected IdConverterDecorator(T idGenerator, IdConverterDefinition converterDefinition) {
         this.idGenerator = idGenerator;
         this.converterDefinition = converterDefinition;
     }
-    
+
     public T decorate() {
         IdConverter idConverter = ToStringIdConverter.INSTANCE;
         switch (converterDefinition.getType()) {
@@ -45,47 +47,58 @@ public T decorate() {
             case CUSTOM -> idConverter = newCustom();
             default -> throw new IllegalStateException("Unexpected value: " + converterDefinition.getType());
         }
-        
+
         IdConverterDefinition.GroupPrefix groupPrefix = converterDefinition.getGroupPrefix();
-        
+
         if (groupPrefix.isEnabled() && groupPrefix.isBeforePrefix()) {
             idConverter = new GroupedPrefixIdConverter(groupPrefix.getDelimiter(), idConverter);
         }
+
+        IdConverterDefinition.DatePrefix datePrefix = converterDefinition.getDatePrefix();
+        if (datePrefix.isEnabled() && datePrefix.isBeforePrefix()) {
+            idConverter = new DatePrefixIdConverter(datePrefix.getPattern(), datePrefix.getDelimiter(), idConverter);
+        }
+
         if (!Strings.isNullOrEmpty(converterDefinition.getPrefix())) {
             idConverter = new PrefixIdConverter(converterDefinition.getPrefix(), idConverter);
         }
         if (groupPrefix.isEnabled() && !groupPrefix.isBeforePrefix()) {
             idConverter = new GroupedPrefixIdConverter(groupPrefix.getDelimiter(), idConverter);
         }
+
+        if (datePrefix.isEnabled() && !datePrefix.isBeforePrefix()) {
+            idConverter = new DatePrefixIdConverter(datePrefix.getPattern(), datePrefix.getDelimiter(), idConverter);
+        }
+
         if (!Strings.isNullOrEmpty(converterDefinition.getSuffix())) {
             idConverter = new SuffixIdConverter(converterDefinition.getSuffix(), idConverter);
         }
-        
+
         return newIdGenerator(idConverter);
     }
-    
+
     protected IdConverter newRadix() {
         IdConverterDefinition.Radix radix = converterDefinition.getRadix();
         return Radix62IdConverter.of(radix.isPadStart(), radix.getCharSize());
     }
-    
+
     protected IdConverter newRadix36() {
         IdConverterDefinition.Radix36 radix36 = converterDefinition.getRadix36();
         return Radix36IdConverter.of(radix36.isPadStart(), radix36.getCharSize());
     }
-    
+
     protected IdConverter newToString(IdConverter defaultIdConverter) {
         IdConverterDefinition.ToString toString = converterDefinition.getToString();
         if (toString != null) {
             return new ToStringIdConverter(toString.isPadStart(), toString.getCharSize());
         }
         return defaultIdConverter;
     }
-    
+
     protected IdConverter newSnowflakeFriendly() {
         throw new UnsupportedOperationException("newSnowflakeFriendly");
     }
-    
+
     protected IdConverter newCustom() {
         IdConverterDefinition.Custom custom = converterDefinition.getCustom();
         try {
@@ -94,6 +107,6 @@ protected IdConverter newCustom() {
             throw new RuntimeException(e);
         }
     }
-    
+
     protected abstract T newIdGenerator(IdConverter idConverter);
 }