Use of transformation services in a binding

scherer · November 1, 2019, 1:45pm

I’m trying to use a MAP transformation service in a new binding, but I’m not sure how to wire the transformation service in.

One of the existing 2.x bindings (globalcache) uses:

TransformationHelper.getTransformationService(bundleContext, "MAP");

But since the use of bundleContext is now deprecated, what is the correct way to access a transformation service from my handler? Is there any example code?

tmrobert8 · November 6, 2019, 6:53pm

Don’t do it in the binding but grab the transformation helper from the factory and pass it into the binding. Here’s an example of how I do it in the sony binding:

github.com

tmrobert8/openhab2-addons/blob/1234-Sony/bundles/org.openhab.binding.sony/src/main/java/org/openhab/binding/sony/internal/SonyHandlerFactory.java

/**
 * Copyright (c) 2010-2019 Contributors to the openHAB project
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 */
package org.openhab.binding.sony.internal;

import java.util.Objects;

import org.apache.commons.lang.StringUtils;
import org.eclipse.jdt.annotation.NonNullByDefault;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.jetty.websocket.client.WebSocketClient;

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