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KAFKA-8774: Regex can be found anywhere in config value #7197

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merged 3 commits into from Aug 13, 2019
Merged

KAFKA-8774: Regex can be found anywhere in config value #7197

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197021b
KAFKA-8774: Regex can be found anywhere in config value
wicknicks Aug 12, 2019
2d86b8e
KAFKA-8774: Add more cases for unit tests
wicknicks Aug 13, 2019
6160724
KAFKA-8774: Update system tests to cover case
wicknicks Aug 13, 2019
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5 changes: 3 additions & 2 deletions connect/runtime/src/main/java/org/apache/kafka/connect/runtime/AbstractHerder.java
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Expand Up @@ -598,12 +598,13 @@ public static List<Map<String, String>> reverseTransform(String connName,
return result;
}

private static Set<String> keysWithVariableValues(Map<String, String> rawConfig, Pattern pattern) {
// Visible for testing
static Set<String> keysWithVariableValues(Map<String, String> rawConfig, Pattern pattern) {
Set<String> keys = new HashSet<>();
for (Map.Entry<String, String> config : rawConfig.entrySet()) {
if (config.getValue() != null) {
Matcher matcher = pattern.matcher(config.getValue());
if (matcher.matches()) {
if (matcher.find()) {
keys.add(config.getKey());
}
}
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21 changes: 21 additions & 0 deletions connect/runtime/src/test/java/org/apache/kafka/connect/runtime/AbstractHerderTest.java
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Expand Up @@ -20,6 +20,7 @@
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.config.ConfigDef;
import org.apache.kafka.common.config.ConfigException;
import org.apache.kafka.common.config.ConfigTransformer;
import org.apache.kafka.common.config.SaslConfigs;
import org.apache.kafka.common.security.oauthbearer.internals.unsecured.OAuthBearerUnsecuredLoginCallbackHandler;
import org.apache.kafka.connect.connector.ConnectRecord;
Expand Down Expand Up @@ -62,6 +63,7 @@
import java.util.Set;
import java.util.stream.Collectors;

import static org.apache.kafka.connect.runtime.AbstractHerder.keysWithVariableValues;
import static org.powermock.api.easymock.PowerMock.verifyAll;
import static org.powermock.api.easymock.PowerMock.replayAll;
import static org.easymock.EasyMock.strictMock;
Expand Down Expand Up @@ -474,6 +476,25 @@ public void testReverseTransformConfigs() {
assertFalse(reverseTransformed.get(0).containsKey(TEST_KEY3));
}

@Test
public void testConfigProviderRegex() {
testConfigProviderRegex("${file:/tmp/somefile.txt:somevar}");
testConfigProviderRegex("\"${file:/tmp/somefile.txt:somevar}\"");
testConfigProviderRegex("plain.PlainLoginModule required username=\"${file:/tmp/somefile.txt:somevar}\"");
testConfigProviderRegex("plain.PlainLoginModule required username=${file:/tmp/somefile.txt:somevar}");
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testConfigProviderRegex("plain.PlainLoginModule required username", false);
}

private void testConfigProviderRegex(String rawConnConfig) {
testConfigProviderRegex(rawConnConfig, true);
}

private void testConfigProviderRegex(String rawConnConfig, boolean expected) {
Set<String> keys = keysWithVariableValues(Collections.singletonMap("key", rawConnConfig), ConfigTransformer.DEFAULT_PATTERN);
boolean actual = keys != null && !keys.isEmpty() && keys.contains("key");
assertEquals(String.format("%s should have matched regex", rawConnConfig), expected, actual);
}

private AbstractHerder createConfigValidationHerder(Class<? extends Connector> connectorClass,
ConnectorClientConfigOverridePolicy connectorClientConfigOverridePolicy) {

Expand Down