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...c/main/java/org/apache/shardingsphere/mode/event/builder/MetaDataChangedEventBuilder.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.apache.shardingsphere.mode.event.builder; | ||
|
|
||
| import org.apache.shardingsphere.metadata.persist.node.DatabaseMetaDataNode; | ||
| import org.apache.shardingsphere.metadata.persist.node.metadata.DataSourceMetaDataNode; | ||
| import org.apache.shardingsphere.metadata.persist.node.metadata.TableMetaDataNode; | ||
| import org.apache.shardingsphere.metadata.persist.node.metadata.ViewMetaDataNode; | ||
| import org.apache.shardingsphere.mode.event.DataChangedEvent; | ||
| import org.apache.shardingsphere.mode.event.DataChangedEvent.Type; | ||
| import org.apache.shardingsphere.mode.event.dispatch.DispatchEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.node.StorageNodeAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.node.StorageNodeRegisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.node.StorageNodeUnregisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.unit.StorageUnitAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.unit.StorageUnitRegisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.unit.StorageUnitUnregisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.SchemaAddedEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.SchemaDeletedEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.table.TableCreatedOrAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.table.TableDroppedEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.view.ViewCreatedOrAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.view.ViewDroppedEvent; | ||
|
|
||
| import java.util.Optional; | ||
|
|
||
| /** | ||
| * Meta data changed event builder. | ||
| */ | ||
| public final class MetaDataChangedEventBuilder { | ||
|
|
||
| /** | ||
| * Build meta data changed event. | ||
| * | ||
| * @param databaseName database name | ||
| * @param event data changed event | ||
| * @return built event | ||
| */ | ||
| public Optional<DispatchEvent> build(final String databaseName, final DataChangedEvent event) { | ||
| String key = event.getKey(); | ||
| Optional<String> schemaName = DatabaseMetaDataNode.getSchemaName(key); | ||
| if (schemaName.isPresent()) { | ||
| return buildSchemaChangedEvent(databaseName, schemaName.get(), event); | ||
| } | ||
| schemaName = DatabaseMetaDataNode.getSchemaNameByTableNode(key); | ||
| if (schemaName.isPresent() && isTableMetaDataChanged(event.getKey())) { | ||
| return buildTableChangedEvent(databaseName, schemaName.get(), event); | ||
| } | ||
| if (schemaName.isPresent() && isViewMetaDataChanged(event.getKey())) { | ||
| return buildViewChangedEvent(databaseName, schemaName.get(), event); | ||
| } | ||
| if (DataSourceMetaDataNode.isDataSourcesNode(key)) { | ||
| return buildDataSourceChangedEvent(databaseName, event); | ||
| } | ||
| return Optional.empty(); | ||
| } | ||
|
|
||
| private Optional<DispatchEvent> buildSchemaChangedEvent(final String databaseName, final String schemaName, final DataChangedEvent event) { | ||
| switch (event.getType()) { | ||
| case ADDED: | ||
| case UPDATED: | ||
| return Optional.of(new SchemaAddedEvent(databaseName, schemaName)); | ||
| case DELETED: | ||
| return Optional.of(new SchemaDeletedEvent(databaseName, schemaName)); | ||
| default: | ||
| return Optional.empty(); | ||
| } | ||
| } | ||
|
|
||
| private boolean isTableMetaDataChanged(final String key) { | ||
| return TableMetaDataNode.isTableActiveVersionNode(key) || TableMetaDataNode.isTableNode(key); | ||
| } | ||
|
|
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| private Optional<DispatchEvent> buildTableChangedEvent(final String databaseName, final String schemaName, final DataChangedEvent event) { | ||
| if ((Type.ADDED == event.getType() || Type.UPDATED == event.getType()) && TableMetaDataNode.isTableActiveVersionNode(event.getKey())) { | ||
| String tableName = TableMetaDataNode.getTableNameByActiveVersionNode(event.getKey()).orElseThrow(() -> new IllegalStateException("Table name not found.")); | ||
| return Optional.of(new TableCreatedOrAlteredEvent(databaseName, schemaName, tableName, event.getKey(), event.getValue())); | ||
| } | ||
| if (Type.DELETED == event.getType() && TableMetaDataNode.isTableNode(event.getKey())) { | ||
| String tableName = TableMetaDataNode.getTableName(event.getKey()).orElseThrow(() -> new IllegalStateException("Table name not found.")); | ||
| return Optional.of(new TableDroppedEvent(databaseName, schemaName, tableName)); | ||
| } | ||
| return Optional.empty(); | ||
| } | ||
|
|
||
| private boolean isViewMetaDataChanged(final String key) { | ||
| return ViewMetaDataNode.isViewActiveVersionNode(key) || ViewMetaDataNode.isViewNode(key); | ||
| } | ||
|
|
||
| private Optional<DispatchEvent> buildViewChangedEvent(final String databaseName, final String schemaName, final DataChangedEvent event) { | ||
| if ((Type.ADDED == event.getType() || Type.UPDATED == event.getType()) && ViewMetaDataNode.isViewActiveVersionNode(event.getKey())) { | ||
| String viewName = ViewMetaDataNode.getViewNameByActiveVersionNode(event.getKey()).orElseThrow(() -> new IllegalStateException("View name not found.")); | ||
| return Optional.of(new ViewCreatedOrAlteredEvent(databaseName, schemaName, viewName, event.getKey(), event.getValue())); | ||
| } | ||
| if (Type.DELETED == event.getType() && ViewMetaDataNode.isViewNode(event.getKey())) { | ||
| String viewName = ViewMetaDataNode.getViewName(event.getKey()).orElseThrow(() -> new IllegalStateException("View name not found.")); | ||
| return Optional.of(new ViewDroppedEvent(databaseName, schemaName, viewName, event.getKey(), event.getValue())); | ||
| } | ||
| return Optional.empty(); | ||
| } | ||
|
|
||
| private Optional<DispatchEvent> buildDataSourceChangedEvent(final String databaseName, final DataChangedEvent event) { | ||
| if (DataSourceMetaDataNode.isDataSourceUnitActiveVersionNode(event.getKey()) || DataSourceMetaDataNode.isDataSourceUnitNode(event.getKey())) { | ||
| return buildStorageUnitChangedEvent(databaseName, event); | ||
| } | ||
| if (DataSourceMetaDataNode.isDataSourceNodeActiveVersionNode(event.getKey()) || DataSourceMetaDataNode.isDataSourceNodeNode(event.getKey())) { | ||
| return buildStorageNodeChangedEvent(databaseName, event); | ||
| } | ||
| return Optional.empty(); | ||
| } | ||
|
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| private Optional<DispatchEvent> buildStorageUnitChangedEvent(final String databaseName, final DataChangedEvent event) { | ||
| Optional<String> dataSourceUnitName = DataSourceMetaDataNode.getDataSourceNameByDataSourceUnitActiveVersionNode(event.getKey()); | ||
| if (dataSourceUnitName.isPresent()) { | ||
| if (Type.ADDED == event.getType()) { | ||
| return Optional.of(new StorageUnitRegisteredEvent(databaseName, dataSourceUnitName.get(), event.getKey(), event.getValue())); | ||
| } | ||
| if (Type.UPDATED == event.getType()) { | ||
| return Optional.of(new StorageUnitAlteredEvent(databaseName, dataSourceUnitName.get(), event.getKey(), event.getValue())); | ||
| } | ||
| } | ||
| dataSourceUnitName = DataSourceMetaDataNode.getDataSourceNameByDataSourceUnitNode(event.getKey()); | ||
| if (Type.DELETED == event.getType() && dataSourceUnitName.isPresent()) { | ||
| return Optional.of(new StorageUnitUnregisteredEvent(databaseName, dataSourceUnitName.get())); | ||
| } | ||
| return Optional.empty(); | ||
| } | ||
|
|
||
| private Optional<DispatchEvent> buildStorageNodeChangedEvent(final String databaseName, final DataChangedEvent event) { | ||
| Optional<String> dataSourceNodeName = DataSourceMetaDataNode.getDataSourceNameByDataSourceNodeActiveVersionNode(event.getKey()); | ||
| if (dataSourceNodeName.isPresent()) { | ||
| if (Type.ADDED == event.getType()) { | ||
| return Optional.of(new StorageNodeRegisteredEvent(databaseName, dataSourceNodeName.get(), event.getKey(), event.getValue())); | ||
| } | ||
| if (Type.UPDATED == event.getType()) { | ||
| return Optional.of(new StorageNodeAlteredEvent(databaseName, dataSourceNodeName.get(), event.getKey(), event.getValue())); | ||
| } | ||
| } | ||
| dataSourceNodeName = DataSourceMetaDataNode.getDataSourceNameByDataSourceNodeNode(event.getKey()); | ||
| if (Type.DELETED == event.getType() && dataSourceNodeName.isPresent()) { | ||
| return Optional.of(new StorageNodeUnregisteredEvent(databaseName, dataSourceNodeName.get())); | ||
| } | ||
| return Optional.empty(); | ||
| } | ||
| } |
98 changes: 98 additions & 0 deletions
98
...st/java/org/apache/shardingsphere/mode/event/builder/MetaDataChangedEventBuilderTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.apache.shardingsphere.mode.event.builder; | ||
|
|
||
| import org.apache.shardingsphere.mode.event.DataChangedEvent; | ||
| import org.apache.shardingsphere.mode.event.DataChangedEvent.Type; | ||
| import org.apache.shardingsphere.mode.event.dispatch.DispatchEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.node.StorageNodeAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.node.StorageNodeRegisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.node.StorageNodeUnregisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.unit.StorageUnitAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.unit.StorageUnitRegisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.datasource.unit.StorageUnitUnregisteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.SchemaAddedEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.SchemaDeletedEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.table.TableCreatedOrAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.table.TableDroppedEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.view.ViewCreatedOrAlteredEvent; | ||
| import org.apache.shardingsphere.mode.event.dispatch.metadata.schema.view.ViewDroppedEvent; | ||
| import org.junit.jupiter.api.extension.ExtensionContext; | ||
| import org.junit.jupiter.params.ParameterizedTest; | ||
| import org.junit.jupiter.params.provider.Arguments; | ||
| import org.junit.jupiter.params.provider.ArgumentsProvider; | ||
| import org.junit.jupiter.params.provider.ArgumentsSource; | ||
|
|
||
| import java.util.Optional; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import static org.hamcrest.CoreMatchers.instanceOf; | ||
| import static org.hamcrest.MatcherAssert.assertThat; | ||
| import static org.junit.jupiter.api.Assertions.assertFalse; | ||
| import static org.junit.jupiter.api.Assertions.assertTrue; | ||
|
|
||
| class MetaDataChangedEventBuilderTest { | ||
|
|
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| @ParameterizedTest(name = "{0}") | ||
| @ArgumentsSource(TestCaseArgumentsProvider.class) | ||
| void assertBuild(final String name, final String eventKey, final Type type, final Class<? extends DispatchEvent> toBePostedEventType) { | ||
| Optional<DispatchEvent> actual = new MetaDataChangedEventBuilder().build("foo_db", new DataChangedEvent(eventKey, "value", type)); | ||
| if (null == toBePostedEventType) { | ||
| assertFalse(actual.isPresent()); | ||
| } else { | ||
| assertTrue(actual.isPresent()); | ||
| assertThat(actual.get(), instanceOf(toBePostedEventType)); | ||
| } | ||
| } | ||
|
|
||
| private static class TestCaseArgumentsProvider implements ArgumentsProvider { | ||
|
|
||
| @Override | ||
| public final Stream<? extends Arguments> provideArguments(final ExtensionContext extensionContext) { | ||
| return Stream.of( | ||
| Arguments.of("changeWithoutDatabase", "/metadata", Type.IGNORED, null), | ||
| Arguments.of("addSchema", "/metadata/foo_db/schemas/foo_schema", Type.ADDED, SchemaAddedEvent.class), | ||
| Arguments.of("updateSchema", "/metadata/foo_db/schemas/foo_schema", Type.UPDATED, SchemaAddedEvent.class), | ||
| Arguments.of("deleteSchema", "/metadata/foo_db/schemas/foo_schema", Type.DELETED, SchemaDeletedEvent.class), | ||
| Arguments.of("ignoreChangeSchema", "/metadata/foo_db/schemas/foo_schema", Type.IGNORED, null), | ||
| Arguments.of("addTable", "/metadata/foo_db/schemas/foo_schema/tables/foo_tbl/active_version/0", Type.ADDED, TableCreatedOrAlteredEvent.class), | ||
| Arguments.of("updateTable", "/metadata/foo_db/schemas/foo_schema/tables/foo_tbl/active_version/0", Type.UPDATED, TableCreatedOrAlteredEvent.class), | ||
| Arguments.of("deleteTable", "/metadata/foo_db/schemas/foo_schema/tables/foo_tbl", Type.DELETED, TableDroppedEvent.class), | ||
| Arguments.of("invalidAddTable", "/metadata/foo_db/schemas/foo_schema/tables/foo_tbl", Type.ADDED, null), | ||
| Arguments.of("invalidDeleteTable", "/metadata/foo_db/schemas/foo_schema/tables/foo_tbl/active_version/0", Type.DELETED, null), | ||
| Arguments.of("addView", "/metadata/foo_db/schemas/foo_schema/views/foo_view/active_version/0", Type.ADDED, ViewCreatedOrAlteredEvent.class), | ||
| Arguments.of("updateView", "/metadata/foo_db/schemas/foo_schema/views/foo_view/active_version/0", Type.UPDATED, ViewCreatedOrAlteredEvent.class), | ||
| Arguments.of("deleteView", "/metadata/foo_db/schemas/foo_schema/views/foo_view", Type.DELETED, ViewDroppedEvent.class), | ||
| Arguments.of("invalidAddView", "/metadata/foo_db/schemas/foo_schema/views/foo_view", Type.ADDED, null), | ||
| Arguments.of("invalidDeleteView", "/metadata/foo_db/schemas/foo_schema/views/foo_view/active_version/0", Type.DELETED, null), | ||
| Arguments.of("registerStorageUnit", "/metadata/foo_db/data_sources/units/foo_unit/active_version/0", Type.ADDED, StorageUnitRegisteredEvent.class), | ||
| Arguments.of("alterStorageUnit", "/metadata/foo_db/data_sources/units/foo_unit/active_version/0", Type.UPDATED, StorageUnitAlteredEvent.class), | ||
| Arguments.of("unregisterStorageUnit", "/metadata/foo_db/data_sources/units/foo_unit", Type.DELETED, StorageUnitUnregisteredEvent.class), | ||
| Arguments.of("invalidRegisterStorageNode", "/metadata/foo_db/data_sources/units/foo_unit", Type.ADDED, null), | ||
| Arguments.of("invalidUnregisterStorageNode", "/metadata/foo_db/data_sources/units/foo_unit/active_version/0", Type.DELETED, null), | ||
| Arguments.of("ignoreChangeStorageUnit", "/metadata/foo_db/data_sources/units/foo_unit", Type.IGNORED, null), | ||
| Arguments.of("registerStorageNode", "/metadata/foo_db/data_sources/nodes/foo_node/active_version/0", Type.ADDED, StorageNodeRegisteredEvent.class), | ||
| Arguments.of("alterStorageNode", "/metadata/foo_db/data_sources/nodes/foo_node/active_version/0", Type.UPDATED, StorageNodeAlteredEvent.class), | ||
| Arguments.of("unregisterStorageNode", "/metadata/foo_db/data_sources/nodes/foo_node", Type.DELETED, StorageNodeUnregisteredEvent.class), | ||
| Arguments.of("invalidRegisterStorageNode", "/metadata/foo_db/data_sources/nodes/foo_node", Type.ADDED, null), | ||
| Arguments.of("invalidUnregisterStorageNode", "/metadata/foo_db/data_sources/nodes/foo_node/active_version/0", Type.DELETED, null), | ||
| Arguments.of("ignoreChangeStorageNode", "/metadata/foo_db/data_sources/nodes/foo_node", Type.IGNORED, null), | ||
| Arguments.of("invalidChangeDataSource", "/metadata/foo_db/data_sources/other", Type.ADDED, null)); | ||
| } | ||
| } | ||
| } |
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