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package org.onap.config.test;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.onap.config.api.Configuration;
import org.onap.config.api.ConfigurationChangeListener;
import org.onap.config.api.ConfigurationManager;
import org.onap.config.util.ConfigTestConstant;
import org.onap.config.util.TestUtil;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Properties;
/**
* Pre-requisite - set -Dconfig.location=${"user.home"}/TestResources/ while running test
* Created by sheetalm on 10/19/2016.
* Scenario 24
* Unregister notification and verify listener
*/
public class UnregisterNotificationTest {
public final static String NAMESPACE = "UnregisterNotification";
private String updatedValue = null;
@Before
public void setUp() throws IOException {
String data = "{name:\"SCM\"}";
TestUtil.writeFile(data);
}
@Test
public void testNotification() throws IOException, InterruptedException {
Configuration config = ConfigurationManager.lookup();
System.out.println(config.getAsString(NAMESPACE, ConfigTestConstant.ARTIFACT_NAME_MAXLENGTH));
PropertyListener propListener = new PropertyListener();
config.addConfigurationChangeListener(NAMESPACE, ConfigTestConstant.ARTIFACT_NAME_MAXLENGTH,propListener);
updateValue("20");
Thread.sleep(35000);
System.out.println(config.getAsString(NAMESPACE,ConfigTestConstant.ARTIFACT_NAME_MAXLENGTH));
//Verify listener is invoked and updated value to 20
Assert.assertEquals("20" , updatedValue);
config.removeConfigurationChangeListener(NAMESPACE,ConfigTestConstant.ARTIFACT_NAME_MAXLENGTH,propListener);
updateValue("22");
Thread.sleep(35000);
//When listener is unregistered updating value does not invoke any listener and value from listener should remain unchanged
Assert.assertEquals("20" , updatedValue);
//Verify value is updated even if listener is unregistered
Assert.assertEquals("22" , config.getAsString(NAMESPACE,ConfigTestConstant.ARTIFACT_NAME_MAXLENGTH));
}
private void updateValue(String newValue) throws IOException {
Properties props = new Properties();
props.setProperty(ConfigTestConstant.ARTIFACT_NAME_MAXLENGTH, newValue);
props.setProperty("_config.namespace",NAMESPACE);
props.setProperty("_config.mergeStrategy","override");
File f = new File(TestUtil.jsonSchemaLoc+"config.properties");
try (OutputStream out = new FileOutputStream(f)) {
props.store(out, "Override Config Property at Conventional Resource");
}
}
private class PropertyListener implements ConfigurationChangeListener {
@Override
public void notify(String key, Object oldValue, Object newValue) {
System.out.println("received notification::oldValue=="+oldValue+" newValue=="+newValue);
updatedValue = newValue.toString();
}
}
@After
public void tearDown() throws Exception {
TestUtil.cleanUp();
File f = new File(TestUtil.jsonSchemaLoc+"config.properties");
if(f.exists()) {
f.delete();
}
}
}
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