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mirror of https://github.com/fhem/fhem-mirror.git synced 2025-03-04 23:46:35 +00:00
fhem-mirror/fhem/FHEM/10_MQTT_DEVICE.pm
ntruchsess 1bb364e78c MQTT: update doc
git-svn-id: https://svn.fhem.de/fhem/trunk@6935 2b470e98-0d58-463d-a4d8-8e2adae1ed80
2014-11-09 20:35:34 +00:00

242 lines
7.9 KiB
Perl

##############################################
#
# fhem bridge to mqtt (see http://mqtt.org)
#
# Copyright (C) 2014 Norbert Truchsess
#
# This file is part of fhem.
#
# Fhem is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# Fhem is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with fhem. If not, see <http://www.gnu.org/licenses/>.
#
# $Id$
#
##############################################
use strict;
use warnings;
my %gets = (
"version" => "",
);
sub MQTT_DEVICE_Initialize($) {
my $hash = shift @_;
# Consumer
$hash->{DefFn} = "MQTT::DEVICE::Define";
$hash->{UndefFn} = "MQTT::Client_Undefine";
$hash->{SetFn} = "MQTT::DEVICE::Set";
$hash->{AttrFn} = "MQTT::DEVICE::Attr";
$hash->{AttrList} =
"IODev ".
"qos:".join(",",keys %MQTT::qos)." ".
"retain:0,1 ".
"publishSet ".
"publishSet_.* ".
"subscribeReading_.* ".
"autoSubscribeReadings ".
$main::readingFnAttributes;
main::LoadModule("MQTT");
}
package MQTT::DEVICE;
use strict;
use warnings;
use GPUtils qw(:all);
use Net::MQTT::Constants;
BEGIN {
MQTT->import(qw(:all));
GP_Import(qw(
CommandDeleteReading
CommandAttr
readingsSingleUpdate
Log3
))
};
sub Define() {
my ( $hash, $def ) = @_;
$hash->{sets} = {};
return MQTT::Client_Define($hash,$def);
};
sub Set($$$@) {
my ($hash,$name,$command,@values) = @_;
return "Need at least one parameters" unless defined $command;
return "Unknown argument $command, choose one of " . join(" ", map {$hash->{sets}->{$_} eq "" ? $_ : "$_:".$hash->{sets}->{$_}} sort keys %{$hash->{sets}})
if(!defined($hash->{sets}->{$command}));
my $msgid;
if (@values) {
my $value = join " ",@values;
$msgid = send_publish($hash->{IODev}, topic => $hash->{publishSets}->{$command}->{topic}, message => $value, qos => $hash->{qos}, retain => $hash->{retain});
readingsSingleUpdate($hash,$command,$value,1);
} else {
$msgid = send_publish($hash->{IODev}, topic => $hash->{publishSets}->{""}->{topic}, message => $command, qos => $hash->{qos}, retain => $hash->{retain});
readingsSingleUpdate($hash,"state",$command,1);
}
$hash->{message_ids}->{$msgid}++ if defined $msgid;
readingsSingleUpdate($hash,"transmission-state","outgoing publish sent",1);
return undef;
}
sub Attr($$$$) {
my ($command,$name,$attribute,$value) = @_;
my $hash = $main::defs{$name};
ATTRIBUTE_HANDLER: {
$attribute =~ /^subscribeReading_(.+)/ and do {
if ($command eq "set") {
unless (defined $hash->{subscribeReadings}->{$value} and $hash->{subscribeReadings}->{$value} eq $1) {
unless (defined $hash->{subscribeReadings}->{$value}) {
client_subscribe_topic($hash,$value);
}
$hash->{subscribeReadings}->{$value} = $1;
}
} else {
foreach my $topic (keys %{$hash->{subscribeReadings}}) {
if ($hash->{subscribeReadings}->{$topic} eq $1) {
client_unsubscribe_topic($hash,$topic);
delete $hash->{subscribeReadings}->{$topic};
CommandDeleteReading(undef,"$hash->{NAME} $1");
last;
}
}
}
last;
};
$attribute eq "autoSubscribeReadings" and do {
if ($command eq "set") {
unless (defined $hash->{'.autoSubscribeTopic'} and $hash->{'.autoSubscribeTopic'} eq $value) {
if (defined $hash->{'.autoSubscribeTopic'}) {
client_unsubscribe_topic($hash,$hash->{'.autoSubscribeTopic'});
}
$hash->{'.autoSubscribeTopic'} = $value;
$hash->{'.autoSubscribeExpr'} = topic_to_regexp($value);
client_subscribe_topic($hash,$value);
}
} else {
if (defined $hash->{'.autoSubscribeTopic'}) {
client_unsubscribe_topic($hash,$hash->{'.autoSubscribeTopic'});
delete $hash->{'.autoSubscribeTopic'};
delete $hash->{'.autoSubscribeExpr'};
}
}
last;
};
$attribute =~ /^publishSet(_?)(.*)/ and do {
if ($command eq "set") {
my @values = split ("[ \t]+",$value);
my $topic = pop @values;
$hash->{publishSets}->{$2} = {
'values' => \@values,
topic => $topic,
};
if ($2 eq "") {
foreach my $set (@values) {
$hash->{sets}->{$set}="";
}
} else {
$hash->{sets}->{$2}=join(",",@values);
}
} else {
if ($2 eq "") {
foreach my $set (@{$hash->{publishSets}->{$2}->{'values'}}) {
delete $hash->{sets}->{$set};
}
} else {
CommandDeleteReading(undef,"$hash->{NAME} $2");
delete $hash->{sets}->{$2};
}
delete $hash->{publishSets}->{$2};
}
last;
};
client_attr($hash,$command,$name,$attribute,$value);
}
}
sub onmessage($$$) {
my ($hash,$topic,$message) = @_;
if (defined (my $reading = $hash->{subscribeReadings}->{$topic})) {
Log3($hash->{NAME},5,"calling readingsSingleUpdate($hash->{NAME},$reading,$message,1");
readingsSingleUpdate($hash,$reading,$message,1);
} elsif ($topic =~ $hash->{'.autoSubscribeExpr'}) {
Log3($hash->{NAME},5,"calling readingsSingleUpdate($hash->{NAME},$1,$message,1");
CommandAttr(undef,"$hash->{NAME} subscribeReading_$1 $topic");
readingsSingleUpdate($hash,$1,$message,1);
}
}
1;
=pod
=begin html
<a name="MQTT_DEVICE"></a>
<h3>MQTT_DEVICE</h3>
<ul>
<p>acts as a fhem-device that is mapped to <a href="http://mqtt.org/">mqtt</a>-topics.</p>
<p>requires a <a href="#MQTT">MQTT</a>-device as IODev<br/>
Note: this module is based on <a href="https://metacpan.org/pod/distribution/Net-MQTT/lib/Net/MQTT.pod">Net::MQTT</a> which needs to be installed from CPAN first.</p>
<a name="MQTT_DEVICEdefine"></a>
<p><b>Define</b></p>
<ul>
<p><code>define &lt;name&gt; MQTT_DEVICE</code><br/>
Specifies the MQTT device.</p>
</ul>
<a name="MQTT_DEVICEset"></a>
<p><b>Set</b></p>
<ul>
<li>
<p><code>set &lt;name&gt; &lt;command&gt;</code><br/>
sets reading 'state' and publishes the command to topic configured via attr publishSet</p>
</li>
<li>
<p><code>set &lt;name&gt; &lt;h;reading&gt; &lt;value&gt;</code><br/>
sets reading &lt;h;reading&gt; and publishes the command to topic configured via attr publishSet_&lt;h;reading&gt;</p>
</li>
</ul>
<a name="MQTT_DEVICEattr"></a>
<p><b>Attributes</b></p>
<ul>
<li>
<p><code>attr &lt;name&gt; publishSet [&lt;commands&gt;] &lt;topic&gt;</code><br/>
configures set commands that may be used to both set reading 'state' and publish to configured topic</p>
</li>
<li>
<p><code>attr &lt;name&gt; publishSet_&lt;reading&gt; [&lt;values&gt;] &lt;topic&gt;</code><br/>
configures reading that may be used to both set 'reading' (to optionally configured values) and publish to configured topic</p>
</li>
<li>
<p><code>attr &lt;name&gt; autoSubscribeReadings &lt;topic&gt;</code><br/>
specify a mqtt-topic pattern with wildcard (e.c. 'myhouse/kitchen/+') and MQTT_DEVICE automagically creates readings based on the wildcard-match<br/>
e.g a message received with topic 'myhouse/kitchen/temperature' would create and update a reading 'temperature'</p>
</li>
<li>
<p><code>attr &lt;name&gt; subscribeReading_&lt;reading&gt; &lt;topic&gt;</code><br/>
mapps a reading to a specific topic. The reading is updated whenever a message to the configured topic arrives</p>
</li>
</ul>
</ul>
=end html
=cut