@Override
public void onException(Exception exception) {
if (!feed.isConnected()) {
if (log.isTraceEnabled())
log.trace(
"Read of {} in {} gave exception (while not connected or not yet connected): {}",
new Object[] {this, getBriefDescription(), exception});
} else {
logProblem("exception", exception);
}
if (config.hasExceptionHandler()) {
try {
setSensor(config.getOnException().apply(exception));
} catch (Exception e) {
if (feed.isConnected()) {
log.warn("unable to compute " + getBriefDescription() + "; on exception=" + exception, e);
} else {
if (log.isDebugEnabled())
log.debug(
"unable to compute "
+ getBriefDescription()
+ "; exception="
+ exception
+ " (when inactive)",
e);
}
}
}
}
/** Tests change in processing property when processing starts and finishes. */
public void testProcessingPC() {
listener
.expects(once())
.method("propertyChanged")
.with(same(feed), eq(AbstractFeed.PROP_PROCESSING), eq(false), eq(true))
.id("started");
listener
.expects(once())
.method("propertyChanged")
.with(same(feed), eq(AbstractFeed.PROP_PROCESSING), eq(true), eq(false))
.after("started")
.id("finished");
listener
.expects(once())
.method("propertyChanged")
.with(same(feed), eq(AbstractFeed.PROP_PROCESSING), eq(true), eq(false))
.after("finished");
feed.processingStarted();
feed.processingStarted();
feed.processingFinished();
feed.processingFinished();
disableLogging();
feed.processingFinished();
enableLogging();
listener.verify();
}
@SuppressWarnings("unchecked")
@Override
public void onFailure(V val) {
if (!config.hasFailureHandler()) {
onException(
new Exception(
"checkSuccess of "
+ this
+ " from "
+ entity
+ " was false but poller has no failure handler"));
} else {
logProblem("failure", val);
try {
Object v = coerce(config.getOnFailure().apply(val));
if (v != PollConfig.UNSET) {
entity.setAttribute(sensor, v);
}
} catch (Exception e) {
if (feed.isConnected()) {
log.warn("Error computing " + entity + "->" + sensor + "; val=" + val + ": " + e, e);
} else {
if (log.isDebugEnabled())
log.debug(
"Error computing " + entity + " ->" + sensor + "; val=" + val + " (when inactive)",
e);
}
}
}
}
@SuppressWarnings("unchecked")
@Override
public void onSuccess(V val) {
if (lastWasProblem) {
if (currentProblemLoggedAsWarning) {
log.info("Success (following previous problem) reading " + entity + "->" + sensor);
} else {
log.debug("Success (following previous problem) reading " + entity + "->" + sensor);
}
lastWasProblem = false;
currentProblemStartTime = null;
currentProblemLoggedAsWarning = false;
}
lastSuccessTime = System.currentTimeMillis();
if (log.isTraceEnabled())
log.trace("poll for {}->{} got: {}", new Object[] {entity, sensor, val});
try {
Object v = transformValue(val);
if (v != PollConfig.UNSET) {
entity.setAttribute(sensor, v);
}
} catch (Exception e) {
if (feed.isConnected()) {
log.warn("unable to compute " + entity + "->" + sensor + "; on val=" + val, e);
} else {
if (log.isDebugEnabled())
log.debug(
"unable to compute " + entity + " ->" + sensor + "; val=" + val + " (when inactive)",
e);
}
}
}
@Override
public void onSuccess(V val) {
if (lastWasProblem) {
if (currentProblemLoggedAsWarning) {
log.info("Success (following previous problem) reading " + getBriefDescription());
} else {
log.debug("Success (following previous problem) reading " + getBriefDescription());
}
lastWasProblem = false;
currentProblemStartTime = null;
currentProblemLoggedAsWarning = false;
}
lastSuccessTime = System.currentTimeMillis();
if (log.isTraceEnabled())
log.trace("poll for {} got: {}", new Object[] {getBriefDescription(), val});
try {
setSensor(transformValueOnSuccess(val));
} catch (Exception e) {
if (feed.isConnected()) {
log.warn("unable to compute " + getBriefDescription() + "; on val=" + val, e);
} else {
if (log.isDebugEnabled())
log.debug(
"unable to compute " + getBriefDescription() + "; val=" + val + " (when inactive)",
e);
}
}
}
@Override
public void onFailure(V val) {
if (!config.hasFailureHandler()) {
onException(
new Exception(
"checkSuccess of "
+ this
+ " for "
+ getBriefDescription()
+ " was false but poller has no failure handler"));
} else {
logProblem("failure", val);
try {
setSensor(config.hasFailureHandler() ? config.getOnFailure().apply((V) val) : val);
} catch (Exception e) {
if (feed.isConnected()) {
log.warn("Error computing " + getBriefDescription() + "; val=" + val + ": " + e, e);
} else {
if (log.isDebugEnabled())
log.debug(
"Error computing " + getBriefDescription() + "; val=" + val + " (when inactive)",
e);
}
}
}
}
protected void setUp() throws Exception {
super.setUp();
listener = new Mock(IFeedListener.class);
feed = new DummyNetworkFeed();
feed.addListener((IFeedListener) listener.proxy());
}
@SuppressWarnings("unchecked")
@Override
public void onException(Exception exception) {
if (!feed.isConnected()) {
if (log.isDebugEnabled())
log.debug(
"Read of {} from {} gave exception (while not connected or not yet connected): {}",
new Object[] {this, entity, exception});
} else {
logProblem("exception", exception);
}
if (config.hasExceptionHandler()) {
try {
Object v = transformError(exception);
if (v != PollConfig.UNSET) {
entity.setAttribute(sensor, v);
}
} catch (Exception e) {
if (feed.isConnected()) {
log.warn(
"unable to compute " + entity + "->" + sensor + "; on exception=" + exception, e);
} else {
if (log.isDebugEnabled())
log.debug(
"unable to compute "
+ entity
+ " ->"
+ sensor
+ "; exception="
+ exception
+ " (when inactive)",
e);
}
}
}
}
/** Tests firing propery change events on invalidness reasons changes. */
public void testInvalidnessReasonPC() {
listener
.expects(once())
.method("propertyChanged")
.with(same(feed), eq(AbstractFeed.PROP_INVALIDNESS_REASON), NULL, eq("r1"))
.id("1");
listener
.expects(once())
.method("propertyChanged")
.with(same(feed), eq(AbstractFeed.PROP_INVALIDNESS_REASON), eq("r1"), eq("r2"))
.after("1")
.id("2");
listener
.expects(once())
.method("propertyChanged")
.with(same(feed), eq(AbstractFeed.PROP_INVALIDNESS_REASON), eq("r2"), NULL)
.after("2");
feed.setInvalidnessReason("r1");
feed.setInvalidnessReason("r2");
feed.setInvalidnessReason(null);
listener.verify();
}
/** Tests that events for identical values aren't fired. */
public void testSkipIdenticalPropertyValues() {
feed.firePropertyChanged("test", null, null);
feed.firePropertyChanged("test", "a", "a");
listener.verify();
}
