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DBZ-3 Fixes topic naming to include the name of the server

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This commit is contained in:
Horia Chiorean 2016-12-27 14:44:04 +02:00
parent d681c11eee
commit ae85656851
10 changed files with 54 additions and 32 deletions
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8
debezium-connector-postgres/src/main/java/io/debezium/connector/postgresql/PostgresConnectorConfig.java
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@ -290,8 +290,8 @@ public static TopicSelectionStrategy parse(String value) {
.withWidth(Width.MEDIUM)
.withImportance(Importance.MEDIUM)
.withDefault(ReplicationConnection.Builder.DEFAULT_SLOT_NAME)
.withDescription("The name of the Postgres logical decoding slot created for monitoring a particular database and plugin. " +
"Defaults to 'debezium_connector'");
.withDescription("The name of the Postgres logical decoding slot created for streaming changes from a plugin." +
"Defaults to 'debezium");
public static final Field DROP_SLOT_ON_STOP = Field.create("slot.drop_on_stop")
.withDisplayName("Drop slot on stop")
@ -343,7 +343,7 @@ public static TopicSelectionStrategy parse(String value) {
.withValidation(Field::isRequired)
.withDescription("The name of the database the connector should be monitoring");
public static final Field SERVER_NAME = Field.create("database.server.name")
public static final Field SERVER_NAME = Field.create(DATABASE_CONFIG_PREFIX + "server.name")
.withDisplayName("Namespace")
.withType(Type.STRING)
.withWidth(Width.MEDIUM)
@ -376,7 +376,7 @@ public static TopicSelectionStrategy parse(String value) {
.withType(Type.INT)
.withWidth(Width.SHORT)
.withImportance(Importance.MEDIUM)
.withDescription("Maximum size of each batch of source records. Defaults to 1024.")
.withDescription("Maximum size of each batch of source records. Defaults to 10024.")
.withDefault(DEFAULT_MAX_BATCH_SIZE)
.withValidation(Field::isPositiveInteger);

4
debezium-connector-postgres/src/main/java/io/debezium/connector/postgresql/PostgresTaskContext.java
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@ -40,9 +40,9 @@ private TopicSelector initTopicSelector() {
PostgresConnectorConfig.TopicSelectionStrategy topicSelectionStrategy = config.topicSelectionStrategy();
switch (topicSelectionStrategy) {
case TOPIC_PER_SCHEMA:
return TopicSelector.TOPIC_PER_SCHEMA;
return TopicSelector.topicPerSchema(config.serverName());
case TOPIC_PER_TABLE:
return TopicSelector.TOPIC_PER_TABLE;
return TopicSelector.topicPerTable(config.serverName());
default:
throw new IllegalArgumentException("Unknown topic selection strategy: " + topicSelectionStrategy);
}

20
debezium-connector-postgres/src/main/java/io/debezium/connector/postgresql/TopicSelector.java
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@ -15,14 +15,26 @@
* @author Horia Chiorean (hchiorea@redhat.com)
*/
public interface TopicSelector {
/**
* Selector which generates a separate topic name for each table, based on the FQN name of the table
* Generates a topic name for each table, based on the table schema, table name and a prefix
*
* @param prefix a prefix which will be prepended to the topic name
* @return a {@link TopicSelector} instance, never {@code null}
*/
TopicSelector TOPIC_PER_TABLE = tableId -> String.join(".", tableId.schema(), tableId.table());
static TopicSelector topicPerTable(String prefix) {
return tableId -> String.join(".", prefix, tableId.schema(), tableId.table());
}
/**
* Selector which generates a separate topic for an entire DB schema
* Generates a topic name for each table, based on the table schema and a prefix
*
* @param prefix a prefix which will be prepended to the topic name
* @return a {@link TopicSelector} instance, never {@code null}
*/
TopicSelector TOPIC_PER_SCHEMA = TableId::schema;
static TopicSelector topicPerSchema(String prefix) {
return tableId -> String.join(".", prefix, tableId.schema());
}
/**
* Returns the name of the Kafka topic for a given table identifier

15
debezium-connector-postgres/src/test/java/io/debezium/connector/postgresql/PostgresConnectorIT.java
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@ -11,6 +11,7 @@
import static io.debezium.connector.postgresql.PostgresConnectorConfig.SnapshotMode.INITIAL_ONLY;
import static io.debezium.connector.postgresql.PostgresConnectorConfig.SnapshotMode.NEVER;
import static io.debezium.connector.postgresql.TestHelper.PK_FIELD;
import static io.debezium.connector.postgresql.TestHelper.topicName;
import static org.fest.assertions.Assertions.assertThat;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
@ -323,9 +324,9 @@ public void shouldTakeBlacklistFiltersIntoAccount() throws Exception {
//check the records from the snapshot take the filters into account
SourceRecords actualRecords = consumeRecordsByTopic(4); //3 records in s1.a and 1 in s1.b
assertThat(actualRecords.recordsForTopic("s2.a")).isNullOrEmpty();
assertThat(actualRecords.recordsForTopic("s1.b")).isNullOrEmpty();
List<SourceRecord> recordsForS1a = actualRecords.recordsForTopic("s1.a");
assertThat(actualRecords.recordsForTopic(topicName("s2.a"))).isNullOrEmpty();
assertThat(actualRecords.recordsForTopic(topicName("s1.b"))).isNullOrEmpty();
List<SourceRecord> recordsForS1a = actualRecords.recordsForTopic(topicName("s1.a"));
assertThat(recordsForS1a.size()).isEqualTo(3);
AtomicInteger pkValue = new AtomicInteger(1);
recordsForS1a.forEach(record -> {
@ -444,12 +445,12 @@ private void assertRecordsFromSnapshot(int expectedCount, int...pks) throws Inte
// we have 2 schemas/topics that we expect
int expectedCountPerSchema = expectedCount / 2;
List<SourceRecord> recordsForTopicS1 = actualRecords.recordsForTopic("s1.a");
List<SourceRecord> recordsForTopicS1 = actualRecords.recordsForTopic(topicName("s1.a"));
assertThat(recordsForTopicS1.size()).isEqualTo(expectedCountPerSchema);
IntStream.range(0, expectedCountPerSchema)
.forEach(i -> VerifyRecord.isValidRead(recordsForTopicS1.remove(0), PK_FIELD, pks[i]));
List<SourceRecord> recordsForTopicS2 = actualRecords.recordsForTopic("s2.a");
List<SourceRecord> recordsForTopicS2 = actualRecords.recordsForTopic(topicName("s2.a"));
assertThat(recordsForTopicS2.size()).isEqualTo(expectedCountPerSchema);
IntStream.range(0, expectedCountPerSchema)
.forEach(i -> VerifyRecord.isValidRead(recordsForTopicS2.remove(0), PK_FIELD, pks[i + expectedCountPerSchema]));
@ -462,11 +463,11 @@ private void assertRecordsAfterInsert(int expectedCount, int...pks) throws Inter
// we have 2 schemas
int expectedCountPerSchema = expectedCount / 2;
List<SourceRecord> recordsForTopicS1 = actualRecords.recordsForTopic("s1.a");
List<SourceRecord> recordsForTopicS1 = actualRecords.recordsForTopic(topicName("s1.a"));
assertThat(recordsForTopicS1.size()).isEqualTo(expectedCountPerSchema);
IntStream.range(0, expectedCountPerSchema).forEach(i -> VerifyRecord.isValidInsert(recordsForTopicS1.remove(0), PK_FIELD, pks[i]));
List<SourceRecord> recordsForTopicS2 = actualRecords.recordsForTopic("s2.a");
List<SourceRecord> recordsForTopicS2 = actualRecords.recordsForTopic(topicName("s2.a"));
assertThat(recordsForTopicS2.size()).isEqualTo(expectedCountPerSchema);
IntStream.range(0, expectedCountPerSchema).forEach(i -> VerifyRecord.isValidInsert(recordsForTopicS2.remove(0), PK_FIELD, pks[i]));
}

10
debezium-connector-postgres/src/test/java/io/debezium/connector/postgresql/RecordsSnapshotProducerIT.java
View File

@ -7,6 +7,7 @@
package io.debezium.connector.postgresql;
import static io.debezium.connector.postgresql.TestHelper.PK_FIELD;
import static io.debezium.connector.postgresql.TestHelper.topicName;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
@ -102,12 +103,12 @@ public void shouldGenerateSnapshotAndContinueStreaming() throws Exception {
SourceRecord first = consumer.remove();
VerifyRecord.isValidInsert(first, PK_FIELD, 2);
assertEquals("s1.a", first.topic());
assertEquals(topicName("s1.a"), first.topic());
assertRecordOffset(first, false, false);
SourceRecord second = consumer.remove();
VerifyRecord.isValidInsert(second, PK_FIELD, 2);
assertEquals("s2.a", second.topic());
assertEquals(topicName("s2.a"), second.topic());
assertRecordOffset(second, false, false);
// now shut down the producers and insert some more records
@ -147,8 +148,9 @@ public void shouldGenerateSnapshotAndContinueStreaming() throws Exception {
private void assertReadRecord(SourceRecord record, Map<String, List<SchemaAndValueField>> expectedValuesByTableName) {
VerifyRecord.isValidRead(record, PK_FIELD, 1);
String actualTopicName = record.topic();
assertTrue("Invalid topic name for records", actualTopicName.startsWith("public."));
String tableName = actualTopicName.replace("public.", "");
String topicPrefix = topicName("public.");
assertTrue("Invalid topic name for records", actualTopicName.startsWith(topicPrefix));
String tableName = actualTopicName.replace(topicPrefix, "");
List<SchemaAndValueField> expectedValuesAndSchemasForTable = expectedValuesByTableName.get(tableName);
assertNotNull("No expected values for " + tableName + " found", expectedValuesAndSchemasForTable);
assertRecordSchemaAndValues(expectedValuesAndSchemasForTable, record, Envelope.FieldName.AFTER);

19
debezium-connector-postgres/src/test/java/io/debezium/connector/postgresql/RecordsStreamProducerIT.java
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@ -7,6 +7,7 @@
package io.debezium.connector.postgresql;
import static io.debezium.connector.postgresql.TestHelper.PK_FIELD;
import static io.debezium.connector.postgresql.TestHelper.topicName;
import static junit.framework.TestCase.assertEquals;
import static org.junit.Assert.assertFalse;
@ -119,7 +120,7 @@ public void shouldReceiveChangesForUpdates() throws Exception {
// the update record should be the last record
SourceRecord updatedRecord = consumer.remove();
String topicName = "public.test_table";
String topicName = topicName("public.test_table");
assertEquals(topicName, updatedRecord.topic());
VerifyRecord.isValidUpdate(updatedRecord, PK_FIELD, 1);
@ -159,7 +160,7 @@ public void shouldReceiveChangesForUpdatesWithColumnChanges() throws Exception {
// the update should be the last record
SourceRecord updatedRecord = consumer.remove();
String topicName = "public.test_table";
String topicName = topicName("public.test_table");
assertEquals(topicName, updatedRecord.topic());
VerifyRecord.isValidUpdate(updatedRecord, PK_FIELD, 1);
@ -204,7 +205,7 @@ public void shouldReceiveChangesForUpdatesWithPKChanges() throws Exception {
recordsProducer.start(consumer);
executeAndWait("UPDATE test_table SET text = 'update', pk = 2");
String topicName = "public.test_table";
String topicName = topicName("public.test_table");
// first should be a delete of the old pk
SourceRecord deleteRecord = consumer.remove();
@ -232,7 +233,7 @@ public void shouldReceiveChangesForDefaultValues() throws Exception {
executeAndWait(statements);
SourceRecord insertRecord = consumer.remove();
assertEquals("public.test_table", insertRecord.topic());
assertEquals(topicName("public.test_table"), insertRecord.topic());
VerifyRecord.isValidInsert(insertRecord, PK_FIELD, 2);
List<SchemaAndValueField> expectedSchemaAndValues = Arrays.asList(
new SchemaAndValueField("text", SchemaBuilder.OPTIONAL_STRING_SCHEMA, "update"),
@ -248,9 +249,11 @@ public void shouldReceiveChangesForDeletes() throws Exception {
consumer = testConsumer(5);
recordsProducer.start(consumer);
executeAndWait(statements);
String topicName = "public.test_table";
assertRecordInserted(topicName, PK_FIELD, 2);
String topicPrefix = "public.test_table";
String topicName = topicName(topicPrefix);
assertRecordInserted(topicPrefix, PK_FIELD, 2);
// first entry removed
SourceRecord record = consumer.remove();
@ -289,7 +292,7 @@ private void assertInsert(String statement, List<SchemaAndValueField> expectedSc
private SourceRecord assertRecordInserted(String expectedTopicName, String pkColumn, int pk) throws InterruptedException {
assertFalse("records not generated", consumer.isEmpty());
SourceRecord insertedRecord = consumer.remove();
assertEquals(expectedTopicName, insertedRecord.topic());
assertEquals(topicName(expectedTopicName), insertedRecord.topic());
VerifyRecord.isValidInsert(insertedRecord, pkColumn, pk);
return insertedRecord;
}

4
debezium-connector-postgres/src/test/java/io/debezium/connector/postgresql/TestHelper.java
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@ -128,4 +128,8 @@ protected static void executeDDL(String ddlFile) throws Exception {
connection.executeWithoutCommitting(statements);
}
}
protected static String topicName(String suffix) {
return TestHelper.TEST_SERVER + "." + suffix;
}
}

2
debezium-core/src/main/java/io/debezium/data/Uuid.java
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@ -16,7 +16,7 @@
*/
public class Uuid {
public static final String LOGICAL_NAME = "io.debezium.data.uuid";
public static final String LOGICAL_NAME = "io.debezium.data.Uuid";
/**
* Returns a {@link SchemaBuilder} for a Uuid field. You can use the resulting SchemaBuilder

2
debezium-core/src/main/java/io/debezium/data/geometry/Point.java
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@ -17,7 +17,7 @@
*/
public class Point {
public static final String LOGICAL_NAME = "io.debezium.data.geometry.point";
public static final String LOGICAL_NAME = "io.debezium.data.geometry.Point";
public static final String X_FIELD = "x";
public static final String Y_FIELD = "y";

2
debezium-core/src/main/java/io/debezium/time/MicroTimestamp.java
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@ -22,7 +22,7 @@
*/
public class MicroTimestamp {
public static final String SCHEMA_NAME = "io.debezium.time.NanoTimestamp";
public static final String SCHEMA_NAME = "io.debezium.time.MicroTimestamp";
/**
* Returns a {@link SchemaBuilder} for a {@link MicroTimestamp}. The resulting schema will describe a field