com.cisco.oss.foundation.directory.adapter.NotificationHandlerAdapter Maven / Gradle / Ivy

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Project for Cisco OSS service directory API library.

There is a newer version: 1.2.1-5

package com.cisco.oss.foundation.directory.adapter;

import java.util.Objects;

import com.cisco.oss.foundation.directory.NotificationHandler;
import com.cisco.oss.foundation.directory.entity.InstanceChange;
import com.cisco.oss.foundation.directory.entity.ModelServiceInstance;

import static com.cisco.oss.foundation.directory.entity.OperationalStatus.UP;
import static com.cisco.oss.foundation.directory.utils.ServiceInstanceUtils.toServiceInstance;

/**
 *  Adapter to bridge the 1.2 service instance changes to the 1.1 notifications.
 */
public class NotificationHandlerAdapter extends AbstractModelChangeAdapter {

    /**
     * Constructor.
     *
     * @param a
     *            the NotificationHandler object
     */
    public NotificationHandlerAdapter(NotificationHandler a) {
        super(a);
    }

	@Override
    public void onChange(InstanceChange.ChangeType type, InstanceChange change) throws Exception {
        Objects.requireNonNull(type);
        Objects.requireNonNull(change);
        switch (type) {
            case ADD:
                getAdapter().serviceInstanceChange(toServiceInstance(change.to));
                if (change.to.getStatus()==UP) {
                    getAdapter().serviceInstanceAvailable(toServiceInstance(change.to));
                }else{
                    getAdapter().serviceInstanceUnavailable(toServiceInstance(change.to));
                }
                break;
            case REMOVE:
                getAdapter().serviceInstanceChange(toServiceInstance(change.from));
                getAdapter().serviceInstanceUnavailable(toServiceInstance(change.from));
                break;
            case STATUS:
                Objects.requireNonNull(change.to);
                getAdapter().serviceInstanceChange(toServiceInstance(change.to));
                if (change.to.getStatus()== UP){
                    getAdapter().serviceInstanceAvailable(toServiceInstance(change.to));
                }else{
                    getAdapter().serviceInstanceUnavailable(toServiceInstance(change.to));
                }
                break;
            case URL:
                getAdapter().serviceInstanceChange(toServiceInstance(change.to));
                break;
            case META:
                getAdapter().serviceInstanceChange(toServiceInstance(change.to));
                break;
        }
    }
}