| 1 | const Logger = { |
| 2 | Logger: require("./src/logger.js"), |
| 3 | Event: require("./src/event.js"), |
| 4 | Statement: require("./src/statement.js"), |
| 5 | Queue: require("./src/queue.js") |
| 6 | } |
| 7 |
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| 8 |
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| 9 | var MyLogger = new Logger.Logger({ |
| 10 | name: "MyLogger", // This serves no use in the creation of log files, it's just identification for the program |
| 11 | locations: { // The names of locations and their corresponding log directories |
| 12 | "node": "./log/node", |
| 13 | "http": "./log/http" |
| 14 | }, |
| 15 | }); |
| 16 |
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| 17 | let NodeLogQueue = MyLogger.queue("node"); // selects the "node" location log queue |
| 18 |
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| 19 | let LoadEvent = new Logger.Event(); // creates a new Event, a nest for Statements |
| 20 |
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| 21 | // Statement objects contain [timestamp, verbosity, tag, message] variables and are the containers for all data |
| 22 |
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| 23 | // Queue.push(statement); |
| 24 | // Queue.push(verbosity, tag, message); - implicitly creates a Statement object |
| 25 | // Queue.push(event); - in this case, the Queue object pushes the `event.statements` table |
| 26 | NodeLogQueue.push(LoadEvent); // This places LoadEvent at the front of the to-write-to-node-log queue. |
| 27 | // Note in most scenarios you would want to empty the queue as soon as it's populated, so waiting until |
| 28 | // the event is written before emptying isn't wise. In this case, because NodeLogQueue has an event |
| 29 | // pushed to it before the event is finished, the event could be prematurely processed by another |
| 30 | // synchronous `.write()` call to the queue object. This demonstration is only okay because there is |
| 31 | // only one `.write()` call to the queue object, which is after the Event object is written. |
| 32 |
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| 33 |
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| 34 | // Although not used here, the Statement object is created with the same parameters used below (verbosity, tag, message) |
| 35 | // Event.push(verbosity, tag, message); - implicitly creates a Statement object |
| 36 | // Event.push(event); - in this case, the Event object pushes the `event.statements` table |
| 37 |
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| 38 | LoadEvent.push("INFO", "INIT", "Acquiring needed top-level packages."); |
| 39 |
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| 40 |
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| 41 | let LowerNestedEvent = new Logger.Event(); |
| 42 |
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| 43 | LowerNestedEvent.push("INFO", "INIT", "Loading fs..."); |
| 44 | LowerNestedEvent.push("DEBUG", "INIT", "fs loaded."); // Verbosity levels and tags are still available for result filtering |
| 45 |
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| 46 | LowerNestedEvent.push("INFO", "INIT", "Loading http..."); |
| 47 | LowerNestedEvent.push("DEBUG", "INIT", "http loaded."); |
| 48 |
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| 49 | LowerNestedEvent.push("INFO", "INIT", "Loading jsonwebtoken..."); |
| 50 | LowerNestedEvent.push("DEBUG", "INIT", "jsonwebtoken loaded."); |
| 51 |
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| 52 | LowerNestedEvent.push("INFO", "INIT", "Loading lognestmonster..."); |
| 53 | LowerNestedEvent.push("DEBUG", "INIT", "lognestmonster loaded."); |
| 54 |
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| 55 |
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| 56 |
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| 57 | LoadEvent.push(LowerNestedEvent); |
| 58 | LoadEvent.push("INFO", "INIT", "Finished."); |
| 59 |
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| 60 | NodeLogQueue.write(); // Makes the queue append all to file and empty itself |
| 61 |
|
| 62 | /* |
| 63 | |
| 64 | A possible parsing system may look like this: |
| 65 | |
| 66 | ------------------------------------------------------------------------------------- |
| 67 | |
| 68 | |
| 69 | [[NAME]] |
| 70 | [[TIMESTAMP]] |
| 71 | [[LOG FILESIZE]] |
| 72 | [[LOG ITEM COUNT]] |
| 73 | > 3 ITEMS |
| 74 | |
| 75 | |
| 76 | ------------------------------------------------------------------------------------- |
| 77 | |
| 78 | |
| 79 | [[NAME]] |
| 80 | [[TIMESTAMP]] |
| 81 | [[LOG FILESIZE]] |
| 82 | [[LOG ITEM COUNT]] |
| 83 | v 3 ITEMS |
| 84 | TIMESTAMP - INFO - INIT - Acquiring needed top-level packages. |
| 85 | > 4 ITEMS |
| 86 | TIMESTAMP - INFO - INIT - Finished. |
| 87 | |
| 88 | |
| 89 | ------------------------------------------------------------------------------------- |
| 90 | |
| 91 | |
| 92 | [[NAME]] |
| 93 | [[TIMESTAMP]] |
| 94 | [[LOG FILESIZE]] |
| 95 | [[LOG ITEM COUNT]] |
| 96 | v 3 ITEMS |
| 97 | TIMESTAMP - INFO - INIT - Acquiring needed top-level packages. |
| 98 | v 4 ITEMS |
| 99 | TIMESTAMP - INFO - INIT - Loading fs... |
| 100 | TIMESTAMP - INFO - INIT - Loading http... |
| 101 | TIMESTAMP - INFO - INIT - Loading jsonwebtoken... |
| 102 | TIMESTAMP - INFO - INIT - Loading lognestmonster... |
| 103 | TIMESTAMP - INFO - INIT - Finished. |
| 104 | |
| 105 | |
| 106 | */ |
| 107 |
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| 108 |
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| 109 | console.log(JSON.stringify(LoadEvent.statements)); |
| 110 |
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| 111 |
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