Issue #5403: Update MetricsHub connector json schema

src/schemas/json/metricshub-connector.json

@@ -554,6 +554,105 @@
                 "$ref": "#/definitions/resultContent"
               }
             }
+          },
+          {
+            "properties": {
+              "type": {
+                "type": "string",
+                "const": "eventLog"
+              },
+              "forceSerialization": {
+                "type": "boolean"
+              },
+              "computes": {
+                "$ref": "#/definitions/computes"
+              },
+              "executeForEachEntryOf": {
+                "$ref": "#/definitions/executeForEachEntryOf"
+              },
+              "logName": {
+                "type": "string",
+                "description": "Windows Event Log name"
+              },
+              "eventIds": {
+                "type": "array",
+                "description": "List of event IDs to filter",
+                "items": {
+                  "type": "string"
+                }
+              },
+              "sources": {
+                "type": "array",
+                "description": "List of event sources to filter",
+                "items": {
+                  "type": "string"
+                }
+              },
+              "levels": {
+                "type": "array",
+                "description": "List of event log levels to filter. Accepts level names (e.g., 'error', 'warn', 'info', 'success', 'failure') or numeric codes (1-5).",
+                "items": {
+                  "oneOf": [
+                    {
+                      "type": "string"
+                    },
+                    {
+                      "type": "integer",
+                      "minimum": 1,
+                      "maximum": 5
+                    }
+                  ]
+                }
+              },
+              "maxEventsPerPoll": {
+                "type": "integer",
+                "description": "Maximum number of events to retrieve per poll (default: 50, -1 for unlimited)",
+                "default": 50
+              }
+            }
+          },
+          {
+            "properties": {
+              "type": {
+                "type": "string",
+                "const": "file"
+              },
+              "forceSerialization": {
+                "type": "boolean"
+              },
+              "computes": {
+                "$ref": "#/definitions/computes"
+              },
+              "executeForEachEntryOf": {
+                "$ref": "#/definitions/executeForEachEntryOf"
+              },
+              "paths": {
+                "type": "array",
+                "description": "File path patterns to read (e.g., C:\\logs\\*.log, /var/log/app/*.log). Supports wildcards.",
+                "items": {
+                  "type": "string"
+                }
+              },
+              "maxSizePerPoll": {
+                "oneOf": [
+                  {
+                    "type": "integer",
+                    "description": "Maximum number of bytes to read per polling cycle across all files (LOG mode). Use -1 for no limit. Default is 5 MB (5242880 bytes)."
+                  },
+                  {
+                    "type": "string",
+                    "description": "Maximum size per poll as a string (e.g., '5Mb', '10MB'). Supports size units."
+                  }
+                ],
+                "default": 5242880
+              },
+              "mode": {
+                "type": "string",
+                "description": "Processing mode: LOG for incremental reading with cursors, or FLAT for full-file read on each poll (default: LOG).",
+                "enum": ["LOG", "FLAT"],
+                "default": "LOG"
+              }
+            }
           }
         ]
       }

src/schemas/json/metricshub.json

@@ -1300,6 +1300,49 @@
                 "default": 50
               }
             }
+          },
+          {
+            "properties": {
+              "type": {
+                "type": "string",
+                "const": "file"
+              },
+              "forceSerialization": {
+                "type": "boolean"
+              },
+              "computes": {
+                "$ref": "#/definitions/computes"
+              },
+              "executeForEachEntryOf": {
+                "$ref": "#/definitions/executeForEachEntryOf"
+              },
+              "paths": {
+                "type": "array",
+                "description": "File path patterns to read (e.g., C:\\logs\\*.log, /var/log/app/*.log). Supports wildcards.",
+                "items": {
+                  "type": "string"
+                }
+              },
+              "maxSizePerPoll": {
+                "oneOf": [
+                  {
+                    "type": "integer",
+                    "description": "Maximum number of bytes to read per polling cycle across all files (LOG mode). Use -1 for no limit. Default is 5 MB (5242880 bytes)."
+                  },
+                  {
+                    "type": "string",
+                    "description": "Maximum size per poll as a string (e.g., '5Mb', '10MB'). Supports size units."
+                  }
+                ],
+                "default": 5242880
+              },
+              "mode": {
+                "type": "string",
+                "description": "Processing mode: LOG for incremental reading with cursors, or FLAT for full-file read on each poll (default: LOG).",
+                "enum": ["LOG", "FLAT"],
+                "default": "LOG"
+              }
+            }
           }
         ]
       }

src/test/metricshub-connector/metricshub-connector.yaml

@@ -802,3 +802,47 @@ monitors:
           hw.status{hw.type="battery"}: $7
         legacyTextParameters:
           StatusInformation: $8
+  event_log:
+    simple:
+      sources:
+        systemEvents:
+          type: eventLog
+          logName: System
+          eventIds: ['1001', '1002', '6008']
+          sources: ['Microsoft-Windows-Kernel-General', 'EventLog']
+          levels: [error, warning, 1, 2]
+          maxEventsPerPoll: 100
+        applicationEvents:
+          type: eventLog
+          logName: Application
+          eventIds:
+            - '1001'
+            - '1002'
+          levels:
+            - information
+            - warning
+            - error
+          maxEventsPerPoll: 50
+      mapping:
+        source: ${source::systemEvents}
+        metrics:
+          windows.event.count: $1
+  file_log:
+    simple:
+      sources:
+        logFileReader:
+          type: file
+          paths: ['C:\\logs\\*.log', '/var/log/app/*.log']
+          mode: LOG
+          maxSizePerPoll: 10485760
+        flatFileReader:
+          type: file
+          paths:
+            - '/var/log/system.log'
+            - '/var/log/application.log'
+          mode: FLAT
+          maxSizePerPoll: '5Mb'
+      mapping:
+        source: ${source::logFileReader}
+        metrics:
+          log.lines.count: $1

src/test/metricshub/metricshub.yaml

@@ -623,3 +623,22 @@ resourceGroups:
                 source: ${source::monitors.windowsEventLog.collect.sources.systemEvents}
                 metrics:
                   windows.event.count: $1
+          fileLogMonitor:
+            collect:
+              sources:
+                logFileReader:
+                  type: file
+                  paths: ['C:\\logs\\*.log', '/var/log/app/*.log'] # File path patterns with wildcards
+                  mode: LOG # LOG for incremental reading, FLAT for full-file read
+                  maxSizePerPoll: 10485760 # 10 MB per poll (can also use string like '10Mb')
+                flatFileReader:
+                  type: file
+                  paths:
+                    - '/var/log/system.log'
+                    - '/var/log/application.log'
+                  mode: FLAT # Full-file read on each poll
+                  maxSizePerPoll: '5Mb' # String format with size unit
+              mapping:
+                source: ${source::monitors.fileLogMonitor.collect.sources.logFileReader}
+                metrics:
+                  log.lines.count: $1