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<button *ngIf="shouldInstall()" class="install" (click)="installPWA()">Install as an application</button>
<button *ngIf="updateAvailable" class="update" (click)="reload()">Update available. Click to refresh</button>

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public updateAvailable: boolean;

constructor(private swUpdate: SwUpdate) {
  this.swUpdate.available.subscribe(evt => {
    this.updateAvailable = true;
  });
}

public reload() {
  this.swUpdate.activateUpdate().then(() => document.location.reload());

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public promptEvent;

@HostListener('window:beforeinstallprompt', ['$event'])
onbeforeinstallprompt(e) {
  e.preventDefault();
  this.promptEvent = e;
}

public installPWA() {
  this.promptEvent.prompt();

HalitTalha

<build>
   <plugins>
      <plugin>
         <artifactId>maven-assembly-plugin</artifactId>
         <version>3.1.1</version>
         <!--$NO-MVN-MAN-VER$-->
         <executions>
            <execution>
               <phase>package</phase>
               <goals>

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<Configuration status="TRACE" monitorInterval="180">
	...
   <!--CHANGE HOST AND PORT PROPERTIES ACCORDING TO YOUR NEEDS-->
   <Appenders>
      <Gelf name="gelf" host="udp:graylog.somedomain.com" port="12211" version="1.1" extractStackTrace="true" filterStackTrace="true" mdcProfiling="true" includeFullMdc="true" maximumMessageSize="8192" originHost="%host{fqdn}">
         <!--THESE FIELD DEFINITIONS ARE NOT MANDATORY, YOU CAN USE DEFAULTS-->
         <Field name="timestamp" pattern="%d{dd MMM yyyy HH:mm:ss,SSS}"/>
         <Field name="level" pattern="%level"/>
         <Field name="simpleClassName" pattern="%C{1}"/>
         <Field name="className" pattern="%C"/>

HalitTalha

<dependencies>
   <dependency>
      <groupId>biz.paluch.logging</groupId>
      <artifactId>logstash-gelf</artifactId>
      <version>1.14.0</version>
   </dependency>
   
   <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>

HalitTalha

import { AfterViewInit, Directive, Host, Optional, Renderer2, Self } from '@angular/core';
import { MatPaginator } from '@angular/material/paginator';
import { MatTable, MatTableDataSource } from '@angular/material/table';
import { CdkTableExporter, DataExtractorService, ServiceLocatorService } from 'cdk-table-exporter';
import { Observable } from 'rxjs';

@Directive({
  selector: '[matTableExporter]', // renamed selector but kept old version for backwards compat.
  exportAs: 'matTableExporter'
})

HalitTalha

import { Component, ViewChild, ElementRef } from '@angular/core';
import * as XLSX from 'xlsx';

export class AppComponent {
  @ViewChild('TABLE', { static: true }) table: ElementRef;
  exportTable() {
    const ws: XLSX.WorkSheet = XLSX.utils.table_to_sheet(this.table.nativeElement);
    const wb: XLSX.WorkBook = XLSX.utils.book_new();
    XLSX.utils.book_append_sheet(wb, ws, 'Sheet1');

HalitTalha

import java.util.Properties;

import javax.jms.ConnectionFactory;
import javax.jms.Destination;
import javax.naming.Context;
import javax.naming.NameNotFoundException;
import javax.naming.NamingException;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

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<?xml version="1.0" encoding="UTF-8"?>
<!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor 
	license agreements. See the NOTICE file distributed with this work for additional 
	information regarding copyright ownership. The ASF licenses this file to 
	You under the Apache License, Version 2.0 (the "License"); you may not use 
	this file except in compliance with the License. You may obtain a copy of 
	the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required 
	by applicable law or agreed to in writing, software distributed under the 
	License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS 
	OF ANY KIND, either express or implied. See the License for the specific