@webfaas/webfaas-core/lib/PackageStore/PackageStore.js

WebFaaS Framework - Core

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PackageStore = void 0;
const PackageStoreItemBufferResponse_1 = require("./PackageStoreItemBufferResponse");
/**
 * PackageStore
 */
class PackageStore {
    constructor(name, version, etag, packageBuffer, dataPackageItemDataMap) {
        this.manifest = null;
        this.size = 0;
        this.length = 0;
        this.lastAccess = new Date().getTime();
        this.mainFileFullPath = "";
        this.name = name;
        this.version = version;
        this.key = PackageStore.parseKey(this.name, this.version);
        this.etag = etag;
        this.packageBuffer = packageBuffer || Buffer.alloc(0);
        this.size = this.packageBuffer.length;
        if (dataPackageItemDataMap) {
            this.length = dataPackageItemDataMap.size;
        }
        else {
            this.length = 0;
            dataPackageItemDataMap = new Map();
        }
        this.dataPackageItemDataMap = dataPackageItemDataMap;
        this.seekMainFile();
    }
    static parseKey(name, version) {
        return name + ":" + version;
    }
    updateMetricsAccess() {
        this.lastAccess = new Date().getTime();
    }
    seekMainFile() {
        var manifest;
        var tmpMainFileFullPath = "";
        manifest = this.getManifest();
        if (manifest && manifest.main) {
            if (manifest.main.substring(0, 2) === "./") {
                manifest.main = manifest.main.substring(2);
            }
            if (this.dataPackageItemDataMap.has(manifest.main)) {
                tmpMainFileFullPath = manifest.main;
            }
            else {
                if (manifest.main.indexOf(".") === -1) {
                    if (this.dataPackageItemDataMap.has(manifest.main + "/index.js")) {
                        tmpMainFileFullPath = manifest.main + "/index.js";
                    }
                }
            }
        }
        else {
            if (this.dataPackageItemDataMap.has("index.js")) {
                tmpMainFileFullPath = "index.js";
            }
        }
        if (tmpMainFileFullPath) {
            this.mainFileFullPath = tmpMainFileFullPath;
        }
        else {
            this.mainFileFullPath = "";
        }
    }
    getName() {
        return this.name;
    }
    getVersion() {
        return this.version;
    }
    getKey() {
        return this.key;
    }
    getEtag() {
        return this.etag;
    }
    getSize() {
        return this.size;
    }
    getLength() {
        return this.length;
    }
    getLastAccess() {
        return this.lastAccess;
    }
    getMainFileFullPath() {
        return this.mainFileFullPath;
    }
    getItemBuffer(key) {
        this.updateMetricsAccess();
        var item = this.dataPackageItemDataMap.get(key);
        var extension = key.substring(key.lastIndexOf("."));
        if (item === undefined) {
            if (key.indexOf(".") === -1) {
                extension = ".js";
                item = this.dataPackageItemDataMap.get(key + ".js");
                if (item === undefined) {
                    extension = ".js";
                    item = this.dataPackageItemDataMap.get(key + "/index.js");
                }
                if (item === undefined) {
                    extension = ".json";
                    item = this.dataPackageItemDataMap.get(key + ".json");
                }
            }
        }
        if (item) {
            var end = item.begin + item.size;
            return new PackageStoreItemBufferResponse_1.PackageStoreItemBufferResponse(key, extension, this.packageBuffer.subarray(item.begin, end));
        }
        else {
            return null;
        }
    }
    getMainBuffer() {
        if (this.mainFileFullPath) {
            return this.getItemBuffer(this.mainFileFullPath);
        }
        else {
            return null;
        }
    }
    getManifest() {
        this.updateMetricsAccess();
        if (this.manifest) {
            return this.manifest;
        }
        else {
            var manifestBuffer = this.getItemBuffer("package.json");
            if (manifestBuffer) {
                this.manifest = JSON.parse(manifestBuffer.buffer.toString());
                return this.manifest;
            }
            else {
                return null;
            }
        }
    }
    getPackageBuffer() {
        return this.packageBuffer;
    }
    getDataPackageItemDataMap() {
        return this.dataPackageItemDataMap;
    }
    addItemData(nameItem, itemData) {
        this.removeItemData(nameItem);
        this.dataPackageItemDataMap.set(nameItem, itemData);
        this.size += itemData.size;
        this.length++;
        this.seekMainFile();
    }
    addItemBuffer(nameItem, itemBuffer) {
        var itemData = {};
        itemData.begin = this.packageBuffer.length;
        itemData.name = nameItem;
        itemData.size = itemBuffer.length;
        this.packageBuffer = Buffer.concat([this.packageBuffer, itemBuffer]);
        this.addItemData(nameItem, itemData);
        return itemData;
    }
    removeItemData(nameItem) {
        var itemData = this.dataPackageItemDataMap.get(nameItem);
        if (itemData) {
            this.dataPackageItemDataMap.delete(nameItem);
            this.size -= itemData.size;
            this.length--;
        }
    }
}
exports.PackageStore = PackageStore;
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