markap14 commented on a change in pull request #4110: NIFI-7226: Add Connection
Factory configuration properties to Publish…
URL: https://github.com/apache/nifi/pull/4110#discussion_r388478636
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File path:
nifi-nar-bundles/nifi-jms-bundle/nifi-jms-processors/src/main/java/org/apache/nifi/jms/cf/JMSConnectionFactoryProvider.java
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@@ -68,289 +52,36 @@
@SeeAlso(classNames = {"org.apache.nifi.jms.processors.ConsumeJMS",
"org.apache.nifi.jms.processors.PublishJMS"})
public class JMSConnectionFactoryProvider extends AbstractControllerService
implements JMSConnectionFactoryProviderDefinition {
- private final Logger logger =
LoggerFactory.getLogger(JMSConnectionFactoryProvider.class);
-
- private static final List<PropertyDescriptor> PROPERTY_DESCRIPTORS;
-
- private volatile boolean configured;
-
- private volatile ConnectionFactory connectionFactory;
-
- private static final String BROKER = "broker";
- private static final String CF_IMPL = "cf";
- private static final String CF_LIB = "cflib";
-
- public static final PropertyDescriptor CONNECTION_FACTORY_IMPL = new
PropertyDescriptor.Builder()
- .name(CF_IMPL)
- .displayName("MQ ConnectionFactory Implementation")
- .description("A fully qualified name of the JMS ConnectionFactory
implementation "
- + "class (i.e.,
org.apache.activemq.ActiveMQConnectionFactory)")
- .addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
- .required(true)
-
.expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY)
- .build();
- public static final PropertyDescriptor CLIENT_LIB_DIR_PATH = new
PropertyDescriptor.Builder()
- .name(CF_LIB)
- .displayName("MQ Client Libraries path (i.e. /usr/jms/lib)")
- .description("Path to the directory with additional resources
(i.e., JARs, configuration files etc.) to be added "
- + "to the classpath. Such resources typically represent
target MQ client libraries for the "
- + "ConnectionFactory implementation. Required if target is
not ActiveMQ.")
- .addValidator(StandardValidators.createListValidator(true, true,
StandardValidators.createURLorFileValidator()))
- .required(false)
- .dynamicallyModifiesClasspath(true)
-
.expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY)
- .build();
-
- // ConnectionFactory specific properties
- public static final PropertyDescriptor BROKER_URI = new
PropertyDescriptor.Builder()
- .name(BROKER)
- .displayName("Broker URI")
- .description("URI pointing to the network location of the JMS
Message broker. Example for ActiveMQ: "
- + "'tcp://myhost:61616'. Examples for IBM MQ:
'myhost(1414)' and 'myhost01(1414),myhost02(1414)'")
- .addValidator(new NonEmptyBrokerURIValidator())
- .required(false)
-
.expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY)
- .build();
-
- public static final PropertyDescriptor SSL_CONTEXT_SERVICE = new
PropertyDescriptor.Builder()
- .name("SSL Context Service")
- .description("The SSL Context Service used to provide client
certificate information for TLS/SSL connections.")
- .required(false)
- .identifiesControllerService(SSLContextService.class)
- .build();
-
- static {
- PROPERTY_DESCRIPTORS =
Collections.unmodifiableList(Arrays.asList(CONNECTION_FACTORY_IMPL,
CLIENT_LIB_DIR_PATH, BROKER_URI, SSL_CONTEXT_SERVICE));
- }
+ protected JMSConnectionFactoryHandler delegate;
Review comment:
This is not thread-safe. It's a member variable that is accessed without
synchronization/protection. Must be, at a minimum, marked as `volatile`
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