Mercurial > pub > ImplabJs

annotate src/implab/messaging/Listener.js @ 11:67a5de7581ad

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fixed typo in djol/WFSSource
author cin
date Mon, 21 Aug 2017 18:06:30 +0300
parents fc2517695ee1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 define([ "dojo/_base/declare", "dojo/_base/lang", "./Client" ],
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2
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3 function(declare, lang, Client) {
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4 return declare([ Client ], {
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5 _listener : null,
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6
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7 constructor : function(session, destination, options) {
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8 if (!options || !options.listener)
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9 throw new Error("A listener is required");
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10 this._listener = options.listener;
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11 if (options.transform)
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12 this._transform = options.transform;
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13 },
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14
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15 getMode : function() {
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16 return "listener";
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17 },
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18
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19 process : function(result) {
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20 switch (result.type) {
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21 case "message":
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22 try {
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23 this._handleMessage(result.message);
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24 } catch (ex) {
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25 var err = new Error("Failed to handle message");
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26 err.envelope = result.message;
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27 err.innerException = ex;
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28 this._handleError(err);
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29 }
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30 break;
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31 case "error":
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32 this._handleError(result.error);
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33 break;
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34 }
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35
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36 },
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37
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38 _transform : function(envelope) {
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39 return envelope;
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40 },
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41
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42 _handleMessage : function(envelope) {
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43 this.log(
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44 "MESSAGE type = ${0}, headers = ${2}: ${1}",
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45 envelope.bodyType,
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46 envelope.body,
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47 JSON.stringify(envelope.headers));
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48 var data = this._transform(envelope);
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49 this._listener(data);
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50 this.emit("message", data);
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51 },
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52
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53 _handleError : function(ex) {
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54 if (ex.innerException)
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55 this.error(
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56 "ERROR: ${0} -> ${1}",
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57 ex.message,
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58 ex.innerException.message);
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59 else
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60 this.error("ERROR: ${0}", ex.message);
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61 this.emit("error", ex);
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62 }
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63 });
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64 });