Examples with WriteChannel io.openems.api.channel.WriteChannel used on opensource projects

Example 6 with WriteChannel

use of io.openems.api.channel.WriteChannel in project openems by OpenEMS.

the class ChannelRestlet method setValue.

/**
 * handle HTTP POST request
 *
 * @param thingId
 * @param channelId
 * @param jHttpPost
 */
private void setValue(Channel channel, JsonObject jHttpPost) {
    // check for writable channel
    if (!(channel instanceof WriteChannel<?>)) {
        throw new ResourceException(Status.CLIENT_ERROR_METHOD_NOT_ALLOWED);
    }
    // parse value
    JsonElement jValue;
    if (jHttpPost.has("value")) {
        jValue = jHttpPost.get("value");
    } else {
        throw new ResourceException(Status.CLIENT_ERROR_BAD_REQUEST, "Value is missing");
    }
    // set channel value
    if (channel instanceof ConfigChannel<?>) {
        // is a ConfigChannel
        ConfigChannel<?> configChannel = (ConfigChannel<?>) channel;
        try {
            configChannel.updateValue(jValue, true);
            log.info("Updated Channel [" + channel.address() + "] to value [" + jValue.toString() + "].");
        } catch (NotImplementedException e) {
            throw new ResourceException(Status.CLIENT_ERROR_BAD_REQUEST, "Conversion not implemented");
        }
    } else if (channel instanceof WriteChannel<?>) {
        /*
			 * WriteChannel
			 */
        WriteChannel<?> writeChannel = (WriteChannel<?>) channel;
        WriteObject writeObject = new WriteJsonObject(jValue).onFirstSuccess(() -> {
            Notification.EDGE_CHANNEL_UPDATE_SUCCESS.writeToLog(log, "set " + channel.address() + " => " + jValue);
        }).onFirstError((e) -> {
            Notification.EDGE_CHANNEL_UPDATE_FAILED.writeToLog(log, "set " + channel.address() + " => " + jValue);
        }).onTimeout(() -> {
            Notification.EDGE_CHANNEL_UPDATE_TIMEOUT.writeToLog(log, "set " + channel.address() + " => " + jValue);
        });
        this.apiWorker.addValue(writeChannel, writeObject);
    }
}