Smack/smack-examples/src/main/java/org/igniterealtime/smack/examples/XmlStringBuilderTest.java

119 lines
4.1 KiB
Java

/**
*
* Copyright 2023 Florian Schmaus
*
* This file is part of smack-examples.
*
* smack-examples is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.igniterealtime.smack.examples;
import java.util.function.Supplier;
import org.jivesoftware.smack.util.XmlStringBuilder;
public class XmlStringBuilderTest {
static int COUNT_OUTER = 500;
static int COUNT_INNER = 50;
public static void main(String[] args) throws Exception {
test1();
test2();
test3();
}
public static void test1() throws Exception {
// CHECKSTYLE:OFF
System.out.println("Test 1");
// CHECKSTYLE:ON
XmlStringBuilder parent = new XmlStringBuilder();
XmlStringBuilder child = new XmlStringBuilder();
XmlStringBuilder child2 = new XmlStringBuilder();
for (int i = 1; i < COUNT_OUTER; i++) {
XmlStringBuilder cs = new XmlStringBuilder();
for (int j = 0; j < COUNT_INNER; j++) {
cs.append("abc");
}
child2.append((CharSequence) cs);
}
child.append((CharSequence) child2);
parent.append((CharSequence) child);
time("test1: parent", () -> "len=" + parent.toString().length());
time("test1: child", () -> "len=" + child.toString().length());
time("test1: child2", () -> "len=" + child2.toString().length());
}
public static void test2() throws Exception {
// CHECKSTYLE:OFF
System.out.println("Test 2: evaluate children first");
// CHECKSTYLE:ON
XmlStringBuilder parent = new XmlStringBuilder();
XmlStringBuilder child = new XmlStringBuilder();
XmlStringBuilder child2 = new XmlStringBuilder();
for (int i = 1; i < COUNT_OUTER; i++) {
XmlStringBuilder cs = new XmlStringBuilder();
for (int j = 0; j < COUNT_INNER; j++) {
cs.append("abc");
}
child2.append((CharSequence) cs);
}
child.append((CharSequence) child2);
parent.append((CharSequence) child);
time("test2: child2", () -> "len=" + child2.toString().length());
time("test2: child", () -> "len=" + child.toString().length());
time("test2: parent", () -> "len=" + parent.toString().length());
}
public static void test3() throws Exception {
// CHECKSTYLE:OFF
System.out.println("Test 3: use append(XmlStringBuilder)");
// CHECKSTYLE:ON
XmlStringBuilder parent = new XmlStringBuilder();
XmlStringBuilder child = new XmlStringBuilder();
XmlStringBuilder child2 = new XmlStringBuilder();
for (int i = 1; i < COUNT_OUTER; i++) {
XmlStringBuilder cs = new XmlStringBuilder();
for (int j = 0; j < COUNT_INNER; j++) {
cs.append("abc");
}
child2.append(cs);
}
child.append(child2);
parent.append(child);
time("test3: parent", () -> "len=" + parent.toString().length());
time("test3: child", () -> "len=" + child.toString().length());
time("test3: child2", () -> "len=" + child2.toString().length());
}
static void time(String name, Supplier<String> block) {
long start = System.currentTimeMillis();
String result = block.get();
long end = System.currentTimeMillis();
// CHECKSTYLE:OFF
System.out.println(name + " took " + (end - start) + "ms: " + result);
// CHECKSTYLE:ONy
}
}