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Add redis to node-red-nodes, fix lint etc

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dceejay 2015-06-13 18:47:22 +01:00
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commit 02c21c6e89
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<!--
Copyright 2013 IBM Corp.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<script type="text/x-red" data-template-name="redis out">
<div class="form-row node-input-hostname">
<label for="node-input-hostname"><i class="fa fa-bookmark"></i> Host</label>
<input class="input-append-left" type="text" id="node-input-hostname" placeholder="127.0.0.1" style="width: 40%;" ><button id="node-input-hostname-lookup" class="btn input-append-right"><span class="caret"></span></button>
<label for="node-input-port" style="margin-left: 10px; width: 35px; "> Port</label>
<input type="text" id="node-input-port" placeholder="6379" style="width:45px">
</div>
<div class="form-row">
<label for="node-input-key"><i class="fa fa-key"></i> Key</label>
<input type="text" id="node-input-key" placeholder="Redis Key">
</div>
<div class="form-row">
<label for="node-input-type"><i class="fa fa-th"></i> Type</label>
<select type="text" id="node-input-structtype" style="width: 150px;">
<option value="string">String</option>
<option value="hash">Hash</option>
<option value="set">Set</option>
<option value="list">List</option>
</select>
</div>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips">
If key is blank, the topic will be used as the key.<br>
If type is hash, payload should be an object or field=value string.
</div>
</script>
<script type="text/x-red" data-help-name="redis out">
<p>A Redis output node. Options include Hash, Set, List and String.</p>
<p>To run this you need a local Redis server running. For details see <a href="http://redis.io/" target="_new">the Redis site</a>.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('redis out',{
category: 'storage-output',
color:"#ffaaaa",
defaults: {
hostname: { value:"127.0.0.1",required:true},
port: { value: 6379,required:true},
name: {value:""},
key: {value:""},
structtype: {value:"",required:true}
},
inputs:1,
outputs:0,
icon: "redis.png",
align: "right",
label: function() {
return this.name||this.key+" ("+this.structtype+")";
},
oneditprepare: function() {
var availableServers = [];
var matchedServers = {};
RED.nodes.eachNode(function(node) {
if (node.type == "redis out" && node.hostname && node.port && !matchedServers[node.hostname+":"+node.port]) {
var label = node.hostname+":"+node.port;
matchedServers[label] = true;
availableServers.push({
label:label,
value:node.hostname,
port:node.port
});
}
});
$( "#node-input-hostname" ).autocomplete({
minLength: 0,
source: availableServers,
select: function( event, ui ) {
$("#node-input-port").val(ui.item.port);
}
});
var tt = this;
tt._acOpen = false;
$( "#node-input-hostname" ).on( "autocompleteclose", function( event, ui ) { tt._acOpen = false;} );
$( "#node-input-hostname-lookup" ).click(function(e) {
if (tt._acOpen) {
$( "#node-input-hostname" ).autocomplete( "close");
} else {
$( "#node-input-hostname" ).autocomplete( "search", "" );
}
tt._acOpen = !tt._acOpen;
e.preventDefault();
});
}
});
</script>

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/**
* Copyright 2013 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
module.exports = function(RED) {
"use strict";
var redis = require("redis");
var hashFieldRE = /^([^=]+)=(.*)$/;
var redisConnectionPool = (function() {
var connections = {};
var obj = {
get: function(host,port) {
var id = host+":"+port;
if (!connections[id]) {
connections[id] = redis.createClient(port,host);
connections[id].on("error",function(err) {
RED.log.error(err);
});
connections[id].on("connect",function() {
if (RED.settings.verbose) { RED.log.info("connected to "+host+":"+port); }
});
connections[id]._id = id;
connections[id]._nodeCount = 0;
}
connections[id]._nodeCount += 1;
return connections[id];
},
close: function(connection) {
connection._nodeCount -= 1;
if (connection._nodeCount === 0) {
if (connection) {
clearTimeout(connection.retry_timer);
connection.end();
}
delete connections[connection._id];
}
}
};
return obj;
}());
function RedisOutNode(n) {
RED.nodes.createNode(this,n);
this.port = n.port||"6379";
this.hostname = n.hostname||"127.0.0.1";
this.key = n.key;
this.structtype = n.structtype;
this.client = redisConnectionPool.get(this.hostname,this.port);
if (this.client.connected) {
this.status({fill:"green",shape:"dot",text:"connected"});
} else {
this.status({fill:"red",shape:"ring",text:"disconnected"},true);
}
var node = this;
this.client.on("end", function() {
node.status({fill:"red",shape:"ring",text:"disconnected"});
});
this.client.on("connect", function() {
node.status({fill:"green",shape:"dot",text:"connected"});
});
this.on("input", function(msg) {
var k = this.key || msg.topic;
if (k) {
if (this.structtype == "string") {
this.client.set(k,RED.util.ensureString(msg.payload));
} else if (this.structtype == "hash") {
if (typeof msg.payload == "object") {
this.client.hmset(k,msg.payload);
} else {
var r = hashFieldRE.exec(msg.payload);
if (r) {
this.client.hset(k,r[1],r[2]);
} else {
this.warn("Invalid payload for redis hash");
}
}
} else if (this.structtype == "set") {
this.client.sadd(k,msg.payload);
} else if (this.structtype == "list") {
this.client.rpush(k,msg.payload);
}
} else {
this.warn("No key or topic set");
}
});
this.on("close", function() {
redisConnectionPool.close(node.client);
});
}
RED.nodes.registerType("redis out",RedisOutNode);
}

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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node-red-node-redis
===================
A <a href="http://nodered.org" target="_new">Node-RED</a> node to save data in a Redis database.
**Note** : This is the same node as is/was in the core of Node-RED. If you already
have it installed you do NOT need this node.
Pre-requisite
-------------
To run this you need a local Redis server running. For details see <a href="http://redis.io/" target="_new">the Redis site</a>.
Install
-------
Run the following command in the root directory of your Node-RED install.
Usually this is `~/.node-red` .
npm install node-red-node-redis
Usage
-----
Simple node to save data in a local Redis instance
###Output
A Redis output node. Options include **Hash**, **Set**, **List** and **String**.
If **key** is blank, the **msg.topic** will be used as the key.
If **type** is *hash*, **msg.payload** should be an *object* or *field=value* string.

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{
"name" : "node-red-node-redis",
"version" : "0.0.1",
"description" : "A Node-RED node to save data to an Redis database",
"dependencies" : {
"redis" : "0.12.1"
},
"repository" : {
"type":"git",
"url":"https://github.com/node-red/node-red-nodes/tree/master/storage/redis"
},
"license": "Apache-2.0",
"keywords": [ "node-red", "redis" ],
"node-red" : {
"nodes" : {
"redis": "65-redisout.js"
}
},
"author": {
"name": "Dave Conway-Jones",
"email": "ceejay@vnet.ibm.com",
"url": "http://nodered.org"
}
}