SONAR-11626 clarify what SNAPSHOTS.purge_status is used for

server/sonar-db-dao/src/main/java/org/sonar/db/component/SnapshotDto.java

@@ -40,7 +40,6 @@ public final class SnapshotDto {
   private Long createdAt;
   private Long buildDate;
   private String status = STATUS_UNPROCESSED;
-  private Integer purgeStatus;
   private Boolean last;
   private String codePeriodVersion;
   private String projectVersion;
@@ -93,16 +92,6 @@ public final class SnapshotDto {
     return this;
   }
 
-  @CheckForNull
-  public Integer getPurgeStatus() {
-    return purgeStatus;
-  }
-
-  public SnapshotDto setPurgeStatus(@Nullable Integer purgeStatus) {
-    this.purgeStatus = purgeStatus;
-    return this;
-  }
-
   public Boolean getLast() {
     return last;
   }
@@ -215,7 +204,6 @@ public final class SnapshotDto {
       Objects.equals(createdAt, that.createdAt) &&
       Objects.equals(buildDate, that.buildDate) &&
       Objects.equals(status, that.status) &&
-      Objects.equals(purgeStatus, that.purgeStatus) &&
       Objects.equals(last, that.last) &&
       Objects.equals(codePeriodVersion, that.codePeriodVersion) &&
       Objects.equals(projectVersion, that.projectVersion) &&
@@ -226,7 +214,7 @@ public final class SnapshotDto {
 
   @Override
   public int hashCode() {
-    return Objects.hash(id, uuid, componentUuid, createdAt, buildDate, status, purgeStatus, last, codePeriodVersion, projectVersion, periodMode, periodParam, periodDate);
+    return Objects.hash(id, uuid, componentUuid, createdAt, buildDate, status, last, codePeriodVersion, projectVersion, periodMode, periodParam, periodDate);
   }
 
   @Override
@@ -238,7 +226,6 @@ public final class SnapshotDto {
       ", createdAt=" + createdAt +
       ", buildDate=" + buildDate +
       ", status='" + status + '\'' +
-      ", purgeStatus=" + purgeStatus +
       ", last=" + last +
       ", codePeriodVersion='" + codePeriodVersion + '\'' +
       ", projectVersion='" + projectVersion + '\'' +

server/sonar-db-dao/src/main/java/org/sonar/db/purge/PurgeMapper.java

@@ -52,6 +52,10 @@ public interface PurgeMapper {
 
   void deleteAnalysisWastedMeasures(@Param("analysisUuids") List<String> analysisUuids, @Param("metricIds") List<Long> metricIds);
 
+  /**
+   * Purge status flag is used to not attempt to remove duplications & historical data of analysis of which we already
+   * removed them.
+   */
   void updatePurgeStatusToOne(@Param("analysisUuids") List<String> analysisUuid);
 
   void resolveComponentIssuesNotAlreadyResolved(@Param("componentUuids") List<String> componentUuids, @Param("dateAsLong") Long dateAsLong);

server/sonar-db-dao/src/main/java/org/sonar/db/purge/PurgeSnapshotQuery.java

@@ -28,6 +28,9 @@ public final class PurgeSnapshotQuery {
   private final String componentUuid;
   private String[] status;
   private Boolean islast;
+  /**
+   * If {@code true}, selects only analysis which have not been purged from historical and duplication data before.
+   */
   private Boolean notPurged;
 
   public PurgeSnapshotQuery(String componentUuid) {

server/sonar-db-dao/src/main/resources/org/sonar/db/component/SnapshotMapper.xml

@@ -9,7 +9,6 @@
     s.created_at as createdAt,
     s.build_date as buildDate,
     s.status as status,
-    s.purge_status as purgeStatus,
     s.islast as last,
     s.version as rawCodePeriodVersion,
     s.project_version as rawProjectVersion,
@@ -164,7 +163,6 @@
       created_at,
       build_date,
       status,
-      purge_status,
       islast,
       version,
       project_version,
@@ -178,7 +176,6 @@
       #{createdAt, jdbcType=BIGINT},
       #{buildDate, jdbcType=BIGINT},
       #{status, jdbcType=VARCHAR},
-      #{purgeStatus, jdbcType=INTEGER},
       #{last, jdbcType=BOOLEAN},
       #{codePeriodVersion, jdbcType=VARCHAR},
       #{projectVersion, jdbcType=VARCHAR},

server/sonar-db-dao/src/test/java/org/sonar/db/component/SnapshotDaoTest.java

@@ -73,7 +73,6 @@ public class SnapshotDaoTest {
       .setUuid("ABCD")
       .setStatus("P")
       .setLast(true)
-      .setPurgeStatus(1)
       .setPeriodMode("days")
       .setPeriodParam("30")
       .setPeriodDate(1500000000001L)
@@ -88,7 +87,6 @@ public class SnapshotDaoTest {
     assertThat(result.getComponentUuid()).isEqualTo(project.uuid());
     assertThat(result.getStatus()).isEqualTo("P");
     assertThat(result.getLast()).isTrue();
-    assertThat(result.getPurgeStatus()).isEqualTo(1);
     assertThat(result.getCodePeriodVersion()).isEqualTo("2.1-SNAPSHOT");
     assertThat(result.getProjectVersion()).isEqualTo("2.1.0.2336");
     assertThat(result.getPeriodMode()).isEqualTo("days");
@@ -299,7 +297,6 @@ public class SnapshotDaoTest {
     SnapshotDto dto = underTest.insert(db.getSession(), newAnalysis(project)
       .setStatus("P")
       .setLast(true)
-      .setPurgeStatus(1)
       .setPeriodMode("days")
       .setPeriodParam("30")
       .setPeriodDate(1500000000001L)
@@ -312,7 +309,6 @@ public class SnapshotDaoTest {
     assertThat(dto.getComponentUuid()).isEqualTo(project.uuid());
     assertThat(dto.getStatus()).isEqualTo("P");
     assertThat(dto.getLast()).isTrue();
-    assertThat(dto.getPurgeStatus()).isEqualTo(1);
     assertThat(dto.getPeriodMode()).isEqualTo("days");
     assertThat(dto.getPeriodModeParameter()).isEqualTo("30");
     assertThat(dto.getPeriodDate()).isEqualTo(1500000000001L);
@@ -436,7 +432,6 @@ public class SnapshotDaoTest {
       .setComponentUuid("uuid_3")
       .setStatus("P")
       .setLast(true)
-      .setPurgeStatus(1)
       .setCodePeriodVersion("2.1-SNAPSHOT")
       .setPeriodMode("days1")
       .setPeriodParam("30")