/**
* Copyright (c) 2010-2014, openHAB.org and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.openhab.binding.dmx.ola;
import java.util.List;
import ola.OlaClient;
import ola.proto.Ola.DeviceInfo;
import ola.proto.Ola.DeviceInfoReply;
import ola.proto.Ola.PatchAction;
import org.apache.commons.lang.StringUtils;
import org.openhab.binding.dmx.DmxConnection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* DMX Connection Implementation using OLA as the DMX target. This class wraps
* the OLA Client. It defaults to universe 0 and autobinds to all devices.
*/
public class OlaConnection implements DmxConnection {
private static final Logger logger =
LoggerFactory.getLogger(OlaConnection.class);
private final static String DEFAULT_HOST = "localhost";
private final static int DEFAULT_PORT = 9010;
private OlaClient client;
@Override
public void open(String connectionString) throws Exception {
String host = DEFAULT_HOST;
int port = DEFAULT_PORT;
if (StringUtils.isNotBlank(connectionString)) {
String[] connectionStringElements = connectionString.split(":");
if (connectionStringElements.length == 1) {
host = connectionStringElements[0];
} else if (connectionStringElements.length == 2) {
host = connectionStringElements[0];
port = Integer.valueOf(connectionStringElements[1]).intValue();
}
}
client = new OlaClient();
client.connect(host, port);
autoBind();
}
@Override
public void close() {
if (client != null) {
client.close();
}
}
@Override
public boolean isClosed() {
if (client == null) {
return true;
}
return client.isClosed();
}
@Override
public void sendDmx(byte[] arg0) throws Exception {
client.streamDmx(0, arg0);
}
/**
* Auto bind to all available devices unless autobind is disabled.
*/
private void autoBind() {
String autoBind = System.getProperty("net.opendmx.ola.autobind");
if (autoBind == null || !autoBind.equalsIgnoreCase("false")) {
// bind default universe to all devices
logger.info("Starting autobind for universe 0. To disable autobind use -Dnet.opendmx.ola.autobind=false");
DeviceInfoReply devInfoReply = client.getDeviceInfo();
if (devInfoReply == null) {
logger.error("Could not retrieve device list. Binding to OLA aborted.");
return;
}
List<DeviceInfo> devList = devInfoReply.getDeviceList();
for (DeviceInfo devInfo : devList) {
if (client.patchPort(devInfo.getDeviceAlias(), 0,
PatchAction.PATCH, 0)) {
logger.info("Linked universe 0 to device "
+ devInfo.getDeviceName());
} else {
logger.info("Could not link universe 0 to device "
+ devInfo.getDeviceName());
}
}
}
}
}