Java tutorial
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We also recommend that a * file or class name and description of purpose be included on the * same "printed page" as the copyright notice for easier * identification within third-party archives. * * Copyright 2014 Edgar Espina * * Licensed 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 language governing permissions and * limitations under the License. */ package org.jooby.internal; import com.google.common.base.Strings; import com.typesafe.config.Config; import org.jooby.Route; import org.jooby.WebSocket; import org.slf4j.Logger; import java.util.Set; import java.util.function.Function; public class AppPrinter { private Set<Route.Definition> routes; private Set<WebSocket.Definition> sockets; private String[] urls; private boolean http2; private boolean h2cleartext; public AppPrinter(final Set<Route.Definition> routes, final Set<WebSocket.Definition> sockets, final Config conf) { this.routes = routes; this.sockets = sockets; String host = conf.getString("application.host"); String port = conf.getString("application.port"); String path = conf.getString("application.path"); this.urls = new String[2]; this.urls[0] = "http://" + host + ":" + port + path; if (conf.hasPath("application.securePort")) { this.urls[1] = "https://" + host + ":" + conf.getString("application.securePort") + path; } http2 = conf.getBoolean("server.http2.enabled"); h2cleartext = conf.getBoolean("server.http2.cleartext"); } public void printConf(final Logger log, final Config conf) { if (log.isDebugEnabled()) { String desc = configTree(conf.origin().description()); log.debug("config tree:\n{}", desc); } } private String configTree(final String description) { return configTree(description.split(":\\s+\\d+,|,"), 0); } private String configTree(final String[] sources, final int i) { if (i < sources.length) { return new StringBuilder().append(Strings.padStart("", i, ' ')).append(" ").append(sources[i]) .append("\n").append(configTree(sources, i + 1)).toString(); } return ""; } @Override public String toString() { StringBuilder buffer = new StringBuilder(); routes(buffer); String[] h2 = { h2(" ", http2 && h2cleartext), h2("", http2) }; buffer.append("\nlistening on:"); for (int i = 0; i < urls.length; i++) { if (urls[i] != null) { buffer.append("\n ").append(urls[i]).append(h2[i]); } } return buffer.toString(); } private String h2(final String prefix, final boolean h2) { return h2 ? prefix + " +h2" : ""; } private void routes(final StringBuilder buffer) { Function<Route.Definition, String> p = route -> { Route.Filter filter = route.filter(); if (filter instanceof Route.Before) { return "{before}" + route.pattern(); } else if (filter instanceof Route.After) { return "{after}" + route.pattern(); } else if (filter instanceof Route.Complete) { return "{complete}" + route.pattern(); } return route.pattern(); }; int verbMax = 0, routeMax = 0, consumesMax = 0, producesMax = 0; for (Route.Definition route : routes) { verbMax = Math.max(verbMax, route.method().length()); routeMax = Math.max(routeMax, p.apply(route).length()); consumesMax = Math.max(consumesMax, route.consumes().toString().length()); producesMax = Math.max(producesMax, route.produces().toString().length()); } String format = " %-" + verbMax + "s %-" + routeMax + "s %" + consumesMax + "s %" + producesMax + "s (%s)\n"; for (Route.Definition route : routes) { buffer.append(String.format(format, route.method(), p.apply(route), route.consumes(), route.produces(), route.name())); } sockets(buffer, Math.max(verbMax, "WS".length()), routeMax, consumesMax, producesMax); } private void sockets(final StringBuilder buffer, final int verbMax, int routeMax, int consumesMax, int producesMax) { for (WebSocket.Definition socket : sockets) { routeMax = Math.max(routeMax, socket.pattern().length()); consumesMax = Math.max(consumesMax, socket.consumes().toString().length() + 2); producesMax = Math.max(producesMax, socket.produces().toString().length() + 2); } String format = " %-" + verbMax + "s %-" + routeMax + "s %" + consumesMax + "s %" + producesMax + "s\n"; for (WebSocket.Definition socket : sockets) { buffer.append(String.format(format, "WS", socket.pattern(), "[" + socket.consumes() + "]", "[" + socket.produces() + "]")); } } }