ag-grid/dist/lib/rowModels/cache/rowNodeBlockLoader.js

Advanced Data Grid / Data Table supporting Javascript / React / AngularJS / Web Components

/**
 * ag-grid - Advanced Data Grid / Data Table supporting Javascript / React / AngularJS / Web Components
 * @version v18.1.2
 * @link http://www.ag-grid.com/
 * @license MIT
 */
"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
Object.defineProperty(exports, "__esModule", { value: true });
var rowNodeBlock_1 = require("./rowNodeBlock");
var logger_1 = require("../../logger");
var context_1 = require("../../context/context");
var utils_1 = require("../../utils");
var RowNodeBlockLoader = (function () {
    function RowNodeBlockLoader(maxConcurrentRequests) {
        this.activeBlockLoadsCount = 0;
        this.blocks = [];
        this.active = true;
        this.maxConcurrentRequests = maxConcurrentRequests;
    }
    RowNodeBlockLoader.prototype.setBeans = function (loggerFactory) {
        this.logger = loggerFactory.create('RowNodeBlockLoader');
    };
    RowNodeBlockLoader.prototype.addBlock = function (block) {
        this.blocks.push(block);
    };
    RowNodeBlockLoader.prototype.removeBlock = function (block) {
        utils_1._.removeFromArray(this.blocks, block);
    };
    RowNodeBlockLoader.prototype.destroy = function () {
        this.active = false;
    };
    RowNodeBlockLoader.prototype.loadComplete = function () {
        this.activeBlockLoadsCount--;
    };
    RowNodeBlockLoader.prototype.checkBlockToLoad = function () {
        if (!this.active) {
            return;
        }
        this.printCacheStatus();
        if (this.activeBlockLoadsCount >= this.maxConcurrentRequests) {
            this.logger.log("checkBlockToLoad: max loads exceeded");
            return;
        }
        var blockToLoad = null;
        this.blocks.forEach(function (block) {
            if (block.getState() === rowNodeBlock_1.RowNodeBlock.STATE_DIRTY) {
                blockToLoad = block;
            }
        });
        if (blockToLoad) {
            blockToLoad.load();
            this.activeBlockLoadsCount++;
            this.logger.log("checkBlockToLoad: loading page " + blockToLoad.getBlockNumber());
            this.printCacheStatus();
        }
        else {
            this.logger.log("checkBlockToLoad: no pages to load");
        }
    };
    RowNodeBlockLoader.prototype.getBlockState = function () {
        var result = {};
        this.blocks.forEach(function (block) {
            var nodeIdPrefix = block.getNodeIdPrefix();
            var stateItem = {
                blockNumber: block.getBlockNumber(),
                startRow: block.getStartRow(),
                endRow: block.getEndRow(),
                pageStatus: block.getState()
            };
            if (utils_1._.exists(nodeIdPrefix)) {
                result[nodeIdPrefix + block.getBlockNumber()] = stateItem;
            }
            else {
                result[block.getBlockNumber()] = stateItem;
            }
        });
        return result;
    };
    RowNodeBlockLoader.prototype.printCacheStatus = function () {
        if (this.logger.isLogging()) {
            this.logger.log("printCacheStatus: activePageLoadsCount = " + this.activeBlockLoadsCount + ","
                + (" blocks = " + JSON.stringify(this.getBlockState())));
        }
    };
    __decorate([
        __param(0, context_1.Qualifier('loggerFactory')),
        __metadata("design:type", Function),
        __metadata("design:paramtypes", [logger_1.LoggerFactory]),
        __metadata("design:returntype", void 0)
    ], RowNodeBlockLoader.prototype, "setBeans", null);
    return RowNodeBlockLoader;
}());
exports.RowNodeBlockLoader = RowNodeBlockLoader;