PoolInfoMsgHandler.java

package org.dcache.services.info.gathers.poolmanager;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import dmg.cells.nucleus.UOID;

import org.dcache.services.info.base.BooleanStateValue;
import org.dcache.services.info.base.IntegerStateValue;
import org.dcache.services.info.base.StatePath;
import org.dcache.services.info.base.StateUpdate;
import org.dcache.services.info.base.StateUpdateManager;
import org.dcache.services.info.gathers.CellMessageHandlerSkel;
import org.dcache.services.info.gathers.MessageMetadataRepository;

public class PoolInfoMsgHandler extends CellMessageHandlerSkel
{
    private static final Logger LOGGER = LoggerFactory.getLogger(PoolInfoMsgHandler.class);

    private static final StatePath POOLS_PATH = new StatePath("pools");

    public PoolInfoMsgHandler(StateUpdateManager sum,
            MessageMetadataRepository<UOID> msgMetaRepo)
    {
        super(sum, msgMetaRepo);
    }

    @Override
    public void process(Object msgPayload, long metricLifetime)
    {
        StateUpdate update = new StateUpdate();

        if (!msgPayload.getClass().isArray()) {
            LOGGER.error("received a message that isn't an array");
            return;
        }

        Object[] array = (Object []) msgPayload;

        if (array.length != 6) {
            LOGGER.error("unexpected array size: {}", array.length);
            return;
        }

        Boolean isEnabled = (Boolean) array[3];
        Long heartBeat = (Long) array[4];
        Boolean isReadOnly = (Boolean) array [5];

        String poolName = array[0].toString();

        StatePath thisPoolPath = POOLS_PATH.newChild(poolName);

        addItems(update, thisPoolPath.newChild("poolgroups"), (Object []) array [1], metricLifetime);
        addItems(update, thisPoolPath.newChild("links"), (Object []) array [2], metricLifetime);

        update.appendUpdate(thisPoolPath.newChild("read-only"),
                new BooleanStateValue(isReadOnly, metricLifetime));

        update.appendUpdate(thisPoolPath.newChild("enabled"),
                new BooleanStateValue(isEnabled, metricLifetime));

        update.appendUpdate(thisPoolPath.newChild("last-heartbeat"),
                new IntegerStateValue(heartBeat.intValue(), metricLifetime));

        applyUpdates(update);
    }
}