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[solax] Implementation of refresh command and improved thread safety (#15958)
* Implementation of refresh command and better multi-thread handling --------- Signed-off-by: Konstantin Polihronov <polychronov@gmail.com>
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@ -26,7 +26,7 @@ import org.openhab.core.thing.ThingTypeUID;
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@NonNullByDefault
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public class SolaxBindingConstants {
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private static final String BINDING_ID = "solax";
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protected static final String BINDING_ID = "solax";
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private static final String THING_LOCAL_CONNECT_INVERTER_ID = "local-connect-inverter";
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// List of all Thing Type UIDs
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@ -19,6 +19,7 @@ import java.util.List;
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import java.util.Set;
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import java.util.concurrent.ScheduledFuture;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.locks.ReentrantLock;
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import javax.measure.Quantity;
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import javax.measure.Unit;
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@ -42,6 +43,7 @@ import org.openhab.core.thing.ThingStatus;
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import org.openhab.core.thing.ThingStatusDetail;
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import org.openhab.core.thing.binding.BaseThingHandler;
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import org.openhab.core.types.Command;
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import org.openhab.core.types.RefreshType;
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import org.openhab.core.types.UnDefType;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@ -69,6 +71,8 @@ public class SolaxLocalAccessHandler extends BaseThingHandler {
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private final Set<String> unsupportedExistingChannels = new HashSet<String>();
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private final ReentrantLock retrieveDataCallLock = new ReentrantLock();
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public SolaxLocalAccessHandler(Thing thing) {
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super(thing);
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}
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@ -88,19 +92,25 @@ public class SolaxLocalAccessHandler extends BaseThingHandler {
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}
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private void retrieveData() {
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try {
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String rawJsonData = localHttpConnector.retrieveData();
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logger.debug("Raw data retrieved = {}", rawJsonData);
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if (retrieveDataCallLock.tryLock()) {
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try {
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String rawJsonData = localHttpConnector.retrieveData();
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logger.debug("Raw data retrieved = {}", rawJsonData);
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if (rawJsonData != null && !rawJsonData.isEmpty()) {
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updateFromData(rawJsonData);
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} else {
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updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
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SolaxBindingConstants.I18N_KEY_OFFLINE_COMMUNICATION_ERROR_JSON_CANNOT_BE_RETRIEVED);
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if (rawJsonData != null && !rawJsonData.isEmpty()) {
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updateFromData(rawJsonData);
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} else {
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updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
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SolaxBindingConstants.I18N_KEY_OFFLINE_COMMUNICATION_ERROR_JSON_CANNOT_BE_RETRIEVED);
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}
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} catch (IOException e) {
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logger.debug("Exception received while attempting to retrieve data via HTTP", e);
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updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
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} finally {
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retrieveDataCallLock.unlock();
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}
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} catch (IOException e) {
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logger.debug("Exception received while attempting to retrieve data via HTTP", e);
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updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR, e.getMessage());
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} else {
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logger.debug("Unable to retrieve data because a request is already in progress.");
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}
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}
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@ -283,7 +293,11 @@ public class SolaxLocalAccessHandler extends BaseThingHandler {
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@Override
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public void handleCommand(ChannelUID channelUID, Command command) {
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// Nothing to do here as of now. Maybe implement a REFRESH command in the future.
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if (command instanceof RefreshType) {
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scheduler.execute(this::retrieveData);
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} else {
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logger.debug("Binding {} only supports refresh command", SolaxBindingConstants.BINDING_ID);
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}
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}
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@Override
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