agura commented on a change in pull request #8135:
URL: https://github.com/apache/ignite/pull/8135#discussion_r471698263
##########
File path:
modules/core/src/main/java/org/apache/ignite/internal/managers/systemview/GridSystemViewManager.java
##########
@@ -53,6 +57,9 @@
*/
public class GridSystemViewManager extends
GridManagerAdapter<SystemViewExporterSpi>
implements ReadOnlySystemViewRegistry {
+ /** Class name for a SQL view exporter of system views. */
+ public static final String SYSTEM_VIEW_SQL_SPI =
"org.apache.ignite.internal.managers.systemview.SqlViewExporterSpi";
Review comment:
Visibility scope for this constant is too broad.
##########
File path:
modules/core/src/main/java/org/apache/ignite/internal/managers/systemview/GridSystemViewManager.java
##########
@@ -75,7 +82,26 @@
* @param ctx Kernal context.
*/
public GridSystemViewManager(GridKernalContext ctx) {
- super(ctx, ctx.config().getSystemViewExporterSpi());
+ super(ctx, ((Supplier<SystemViewExporterSpi[]>)() -> {
Review comment:
Could you please replace supplier by simple method call? There is no
need to use lambda syntax here.
##########
File path:
modules/core/src/main/java/org/apache/ignite/internal/managers/systemview/GridSystemViewManager.java
##########
@@ -75,7 +82,26 @@
* @param ctx Kernal context.
*/
public GridSystemViewManager(GridKernalContext ctx) {
- super(ctx, ctx.config().getSystemViewExporterSpi());
+ super(ctx, ((Supplier<SystemViewExporterSpi[]>)() -> {
+ SystemViewExporterSpi[] spi =
ctx.config().getSystemViewExporterSpi();
+
+ if (!IgniteComponentType.INDEXING.inClassPath())
+ return spi;
+
+ SystemViewExporterSpi[] spiWithSql = new SystemViewExporterSpi[spi
!= null ? spi.length + 1 : 1];
Review comment:
Nevertheless, what if `spi` array already contains `SqlViewExporterSpi`?
##########
File path:
modules/indexing/src/main/java/org/apache/ignite/internal/managers/systemview/SqlViewExporterSpi.java
##########
@@ -36,12 +37,9 @@
* This SPI implementation exports metrics as SQL views.
*
* Note, instance of this class created with reflection.
- * @see IgnitionEx#SYSTEM_VIEW_SQL_SPI
+ * @see GridSystemViewManager#SYSTEM_VIEW_SQL_SPI
*/
-public class SqlViewExporterSpi extends IgniteSpiAdapter implements
SystemViewExporterSpi {
- /** System view filter. */
- @Nullable private Predicate<SystemView<?>> filter;
-
+class SqlViewExporterSpi extends IgniteSpiAdapter implements
SystemViewExporterSpi {
Review comment:
IMHO, it isn't the best solution to have internal implementation of any
SPI. May be we can extract some common parts of Exporter SPI into a new
internal super-class which should be inherited by `SystemViewExporterSpi` and
our internal analog of `SqlViewEXporterSpi`?
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