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NIFI-1289 added support for refreshing properties - Added _getNewInstance()_ operation to NiFiProperties to ensure there is a way to refresh/reload NiFi properties - Fixed javadocs 

Signed-off-by: Bryan Bende <bbende@apache.org>

This closes #142
This commit is contained in:
Oleg Zhurakousky 2015-12-16 08:29:33 -05:00 committed by Bryan Bende
parent 3189a13da1
commit 2845e93812
2 changed files with 22 additions and 3 deletions
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23
nifi-commons/nifi-properties/src/main/java/org/apache/nifi/util/NiFiProperties.java
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@ -241,10 +241,27 @@ public class NiFiProperties extends Properties {
}
/**
* This is the method through which the NiFiProperties object should be obtained.
* Factory method to create and return a new instance of
* {@link NiFiProperties}. Unlike its {@link #getInstance()} counterpart
* which may return you a cached instance of {@link NiFiProperties} this
* method creates new instance every time it's called. It is suitable for
* cases where properties may change at runtime.
*
* @return the NiFiProperties object to use
* @throws RuntimeException if unable to load properties file
* @return new instance of {@link NiFiProperties}
*/
public static synchronized NiFiProperties getNewInstance() {
instance = null;
return getInstance();
}
/**
* Factory method to create and return a new instance of
* {@link NiFiProperties}. Unlike its {@link #getNewInstance()} counterpart
* which always creates a new instance of {@link NiFiProperties}, this
* method employs a standard singleton pattern by caching the instance if it
* was already obtained
*
* @return instance of {@link NiFiProperties}
*/
public static synchronized NiFiProperties getInstance() {
if (null == instance) {

2
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/test/java/org/apache/nifi/controller/scheduling/TestStandardProcessScheduler.java
View File

@ -48,6 +48,7 @@ import org.apache.nifi.reporting.InitializationException;
import org.apache.nifi.reporting.ReportingContext;
import org.apache.nifi.reporting.ReportingInitializationContext;
import org.apache.nifi.scheduling.SchedulingStrategy;
import org.apache.nifi.util.NiFiProperties;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
@ -60,6 +61,7 @@ public class TestStandardProcessScheduler {
@Before
public void setup() throws InitializationException {
System.setProperty("nifi.properties.file.path", "src/test/resources/nifi.properties");
NiFiProperties.getNewInstance(); // ensures that properties have been reloaded
scheduler = new StandardProcessScheduler(Mockito.mock(Heartbeater.class), Mockito.mock(ControllerServiceProvider.class), null);
scheduler.setSchedulingAgent(SchedulingStrategy.TIMER_DRIVEN, Mockito.mock(SchedulingAgent.class));