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package org.apache.cayenne.event;

import java.util.Collection;
import java.util.Collections;
import java.util.Map;

import org.apache.cayenne.CayenneRuntimeException;

/**
 * A factory of XMPPBridge. Note that to deploy an XMPPBridge, you need to have
 * smack.jar library in the runtime.
 * 
 * @since 1.2
 * @author Andrus Adamchik
 */
public class XMPPBridgeFactory implements EventBridgeFactory {

    public static final String XMPP_HOST_PROPERTY = "cayenne.XMPPBridge.xmppHost";

    /**
     * An optional property, port 5222 is used as default XMPP port.
     */
    public static final String XMPP_PORT_PROPERTY = "cayenne.XMPPBridge.xmppPort";

    /**
     * An optional property, "conference" is used as default chat service.
     */
    public static final String XMPP_CHAT_SERVICE_PROPERTY = "cayenne.XMPPBridge.xmppChatService";

    public static final String XMPP_SECURE_CONNECTION_PROPERTY = "cayenne.XMPPBridge.xmppSecure";
    public static final String XMPP_LOGIN_PROPERTY = "cayenne.XMPPBridge.xmppLogin";
    public static final String XMPP_PASSWORD_PROPERTY = "cayenne.XMPPBridge.xmppPassword";

    /**
     * @deprecated since 1.2, as we now need to support multiple subjects.
     */
    public EventBridge createEventBridge(EventSubject localSubject, Map properties) {
        return createEventBridge(Collections.singleton(localSubject), EventBridge
                .convertToExternalSubject(localSubject), properties);
    }

    public EventBridge createEventBridge(
            Collection localSubjects,
            String externalSubject,
            Map properties) {

        String chatService = (String) properties.get(XMPP_CHAT_SERVICE_PROPERTY);
        String host = (String) properties.get(XMPP_HOST_PROPERTY);

        String loginId = (String) properties.get(XMPP_LOGIN_PROPERTY);
        String password = (String) properties.get(XMPP_PASSWORD_PROPERTY);

        String secureConnectionString = (String) properties
                .get(XMPP_SECURE_CONNECTION_PROPERTY);
        boolean secureConnection = "true".equalsIgnoreCase(secureConnectionString);

        String portString = (String) properties.get(XMPP_PORT_PROPERTY);
        int port = -1;
        if (portString != null) {

            try {
                port = Integer.parseInt(portString);
            }
            catch (NumberFormatException e) {
                throw new CayenneRuntimeException("Invalid port: " + portString);
            }
        }

        XMPPBridge bridge = new XMPPBridge(localSubjects, externalSubject);

        bridge.setXmppHost(host);
        bridge.setXmppPort(port);
        bridge.setChatService(chatService);
        bridge.setSecureConnection(secureConnection);
        bridge.setLoginId(loginId);
        bridge.setPassword(password);

        return bridge;
    }
}