@dollhousemcp/mcp-server/dist/metrics/collectors/DefaultElementProviderCollector.js

DollhouseMCP - A Model Context Protocol (MCP) server that enables dynamic AI persona management from markdown files, allowing Claude and other compatible AI assistants to activate and switch between different behavioral personas.

import { DefaultElementProvider } from '../../portfolio/DefaultElementProvider.js';
export class DefaultElementProviderCollector {
    name = 'element-provider';
    description = 'Buffer pool metrics from DefaultElementProvider.';
    statsFn;
    constructor(statsFn) {
        this.statsFn = statsFn ?? DefaultElementProvider.getPerformanceStats.bind(DefaultElementProvider);
    }
    collect() {
        try {
            const stats = this.statsFn();
            const bp = stats.bufferPool;
            return [
                {
                    type: 'counter',
                    name: 'portfolio.buffer_pool.hits_total',
                    source: 'DefaultElementProvider',
                    unit: 'count',
                    description: 'Total number of buffer pool hits.',
                    value: bp.hits,
                },
                {
                    type: 'counter',
                    name: 'portfolio.buffer_pool.misses_total',
                    source: 'DefaultElementProvider',
                    unit: 'count',
                    description: 'Total number of buffer pool misses.',
                    value: bp.misses,
                },
                {
                    type: 'counter',
                    name: 'portfolio.buffer_pool.created_total',
                    source: 'DefaultElementProvider',
                    unit: 'count',
                    description: 'Total number of buffers created (pool was empty).',
                    value: bp.created,
                },
                {
                    type: 'gauge',
                    name: 'portfolio.buffer_pool.hit_rate',
                    source: 'DefaultElementProvider',
                    unit: 'ratio',
                    description: 'Buffer pool hit rate (0–1).',
                    value: bp.hitRate,
                },
                {
                    type: 'gauge',
                    name: 'portfolio.buffer_pool.size_current',
                    source: 'DefaultElementProvider',
                    unit: 'count',
                    description: 'Current number of buffers held in the pool.',
                    value: bp.poolSize,
                },
                {
                    type: 'gauge',
                    name: 'portfolio.buffer_pool.size_max',
                    source: 'DefaultElementProvider',
                    unit: 'count',
                    description: 'Maximum configured buffer pool size.',
                    value: bp.maxPoolSize,
                },
            ];
        }
        catch {
            return [];
        }
    }
}
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