Examples with ThrottleListener jmri.ThrottleListener used on opensource projects

Example 1 with ThrottleListener

use of jmri.ThrottleListener in project JMRI by JMRI.

the class AbstractThrottleManager method notifyThrottleKnown.

/**
     * Handle throttle information when it's finally available, e.g. when a new
     * Throttle object has been created.
     * <P>
     * This method creates a throttle for all ThrottleListeners of that address
     * and notifies them via the ThrottleListener.notifyThrottleFound method.
     */
public void notifyThrottleKnown(DccThrottle throttle, LocoAddress addr, boolean suppressUseIncrements) {
    log.debug("notifyThrottleKnown for " + addr);
    DccLocoAddress dla = (DccLocoAddress) addr;
    Addresses ads = null;
    if (!addressThrottles.containsKey(dla)) {
        log.debug("Address " + addr + "doesn't already exists so will add");
        ads = new Addresses(throttle);
        addressThrottles.put(dla, ads);
    } else {
        addressThrottles.get(dla).setThrottle(throttle);
    }
    ArrayList<WaitingThrottle> a = throttleListeners.get(dla);
    if (a == null) {
        log.debug("notifyThrottleKnown with zero-length listeners: " + addr);
    } else {
        for (int i = 0; i < a.size(); i++) {
            ThrottleListener l = a.get(i).getListener();
            log.debug("Notify listener " + (i + 1) + " of " + a.size());
            l.notifyThrottleFound(throttle);
            if (suppressUseIncrements == false) {
                // this is a new throttle
                addressThrottles.get(dla).incrementUse();
            } else {
                // requestThrottle() found an existing throttle, we're re-using that one
                log.debug("incrementUse suppressed");
            }
            addressThrottles.get(dla).addListener(l);
            if (ads != null && a.get(i).getRosterEntry() != null && throttle.getRosterEntry() == null) {
                throttle.setRosterEntry(a.get(i).getRosterEntry());
            }
        }
        throttleListeners.remove(dla);
    }
    ArrayList<WaitingThrottle> p = listenerOnly.get(dla);
    if (p == null) {
        log.debug("notifyThrottleKnown with zero-length propertyChangeListeners: " + addr);
    } else {
        for (int i = 0; i < p.size(); i++) {
            PropertyChangeListener l = p.get(i).getPropertyChangeListener();
            log.debug("Notify propertyChangeListener");
            l.propertyChange(new PropertyChangeEvent(this, "throttleAssigned", null, dla));
            if (ads != null && p.get(i).getRosterEntry() != null && throttle.getRosterEntry() == null) {
                throttle.setRosterEntry(p.get(i).getRosterEntry());
            }
            throttle.addPropertyChangeListener(l);
        }
        listenerOnly.remove(dla);
    }
}

Example 2 with ThrottleListener

use of jmri.ThrottleListener in project JMRI by JMRI.

the class AbstractThrottleManager method failedThrottleRequest.

/**
     * If the system-specific ThrottleManager has been unable to create the DCC
     * throttle then it needs to be removed from the throttleListeners,
     * otherwise any subsequent request for that address results in the address
     * being reported as already in use, if singleUse is set. This also sends a
     * notification message back to the requestor with a string reason as to why
     * the request has failed.
     *
     * @param address The DCC Loco Address that the request failed on.
     * @param reason  A text string passed by the ThrottleManae as to why
     */
public void failedThrottleRequest(DccLocoAddress address, String reason) {
    ArrayList<WaitingThrottle> a = throttleListeners.get(address);
    if (a == null) {
        log.warn("failedThrottleRequest with zero-length listeners: " + address);
    } else {
        for (int i = 0; i < a.size(); i++) {
            ThrottleListener l = a.get(i).getListener();
            l.notifyFailedThrottleRequest(address, reason);
        }
    }
    throttleListeners.remove(address);
    ArrayList<WaitingThrottle> p = listenerOnly.get(address);
    if (p == null) {
        log.debug("failedThrottleRequest with zero-length PropertyChange listeners: " + address);
    } else {
        for (int i = 0; i < p.size(); i++) {
            PropertyChangeListener l = p.get(i).getPropertyChangeListener();
            l.propertyChange(new PropertyChangeEvent(this, "attachFailed", address, null));
        }
    }
    listenerOnly.remove(address);
}

Example 3 with ThrottleListener

use of jmri.ThrottleListener in project JMRI by JMRI.

the class AbstractAutomaton method getThrottle.

/**
     * Obtains a DCC throttle, including waiting for the command station
     * response.
     *
     * @param address     Numeric address value
     * @param longAddress true if this is a long address, false for a short
     *                    address
     * @param waitSecs    number of seconds to wait for throttle to acquire
     *                    before returning null
     * @return A usable throttle, or null if error
     */
public DccThrottle getThrottle(int address, boolean longAddress, int waitSecs) {
    log.debug("requesting DccThrottle for addr " + address);
    if (!inThread) {
        log.warn("getThrottle invoked from invalid context");
    }
    throttle = null;
    ThrottleListener throttleListener = new ThrottleListener() {

        @Override
        public void notifyThrottleFound(DccThrottle t) {
            throttle = t;
            synchronized (self) {
                // should be only one thread waiting, but just in case
                self.notifyAll();
            }
        }

        @Override
        public void notifyFailedThrottleRequest(jmri.DccLocoAddress address, String reason) {
            log.error("Throttle request failed for " + address + " because " + reason);
            failedThrottleRequest = true;
            synchronized (self) {
                // should be only one thread waiting, but just in case
                self.notifyAll();
            }
        }
    };
    boolean ok = InstanceManager.getDefault(ThrottleManager.class).requestThrottle(address, longAddress, throttleListener);
    // check if reply is coming
    if (!ok) {
        log.info("Throttle for loco " + address + " not available");
        //kill the pending request
        InstanceManager.getDefault(ThrottleManager.class).cancelThrottleRequest(address, throttleListener);
        return null;
    }
    // now wait for reply from identified throttle
    int waited = 0;
    while (throttle == null && failedThrottleRequest == false && waited <= waitSecs) {
        log.debug("waiting for throttle");
        //  1 seconds
        wait(1000);
        waited++;
        if (throttle == null) {
            log.warn("Still waiting for throttle " + address + "!");
        }
    }
    if (throttle == null) {
        log.debug("canceling request for Throttle " + address);
        //kill the pending request
        InstanceManager.getDefault(ThrottleManager.class).cancelThrottleRequest(address, throttleListener);
    }
    return throttle;
}

Example 4 with ThrottleListener

use of jmri.ThrottleListener in project JMRI by JMRI.

the class AbstractThrottleTest method testRelease_ThrottleListener.

/**
     * Test of release method, of class AbstractThrottle.
     */
public void testRelease_ThrottleListener() {
    ThrottleListener l = null;
    AbstractThrottle instance = new AbstractThrottleImpl();
    instance.release(l);
}

Example 5 with ThrottleListener

use of jmri.ThrottleListener in project JMRI by JMRI.

the class AbstractAutomaton method getThrottle.

/**
     * Obtains a DCC throttle, including waiting for the command station
     * response.
     *
     * @param re       specifies the desired locomotive
     * @param waitSecs number of seconds to wait for throttle to acquire before
     *                 returning null
     * @return A usable throttle, or null if error
     */
public DccThrottle getThrottle(BasicRosterEntry re, int waitSecs) {
    log.debug("requesting DccThrottle for rosterEntry " + re.getId());
    if (!inThread) {
        log.warn("getThrottle invoked from invalid context");
    }
    throttle = null;
    ThrottleListener throttleListener = new ThrottleListener() {

        @Override
        public void notifyThrottleFound(DccThrottle t) {
            throttle = t;
            synchronized (self) {
                // should be only one thread waiting, but just in case
                self.notifyAll();
            }
        }

        @Override
        public void notifyFailedThrottleRequest(jmri.DccLocoAddress address, String reason) {
            log.error("Throttle request failed for " + address + " because " + reason);
            failedThrottleRequest = true;
            synchronized (self) {
                // should be only one thread waiting, but just in case
                self.notifyAll();
            }
        }
    };
    boolean ok = InstanceManager.throttleManagerInstance().requestThrottle(re, throttleListener);
    // check if reply is coming
    if (!ok) {
        log.info("Throttle for loco " + re.getId() + " not available");
        //kill the pending request
        InstanceManager.getDefault(ThrottleManager.class).cancelThrottleRequest(re, throttleListener);
        return null;
    }
    // now wait for reply from identified throttle
    int waited = 0;
    while (throttle == null && failedThrottleRequest == false && waited <= waitSecs) {
        log.debug("waiting for throttle");
        //  1 seconds
        wait(1000);
        waited++;
        if (throttle == null) {
            log.warn("Still waiting for throttle " + re.getId() + "!");
        }
    }
    if (throttle == null) {
        log.debug("canceling request for Throttle " + re.getId());
        //kill the pending request
        InstanceManager.getDefault(ThrottleManager.class).cancelThrottleRequest(re, throttleListener);
    }
    return throttle;
}