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/*
* Copyright (c) 2001, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 4463560
* @requires (os.family == "windows")
* @summary Tests that datatransfer doesn't take too much time to complete
* @key headful
* @library /test/lib
* @run main/timeout=300 ClipboardPerformanceTest
*/
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
public class ClipboardPerformanceTest {
public static final int CODE_FAILURE = 1;
public static final int CODE_OTHER_FAILURE = 2;
static String eoln;
static char[] text;
public static final int ARRAY_SIZE = 100000;
public static final int RATIO_THRESHOLD = 10;
public static void main(String[] args) throws Exception {
if (args.length == 0) {
ClipboardPerformanceTest clipboardPerformanceTest = new ClipboardPerformanceTest();
clipboardPerformanceTest.initialize();
return;
}
long before, after, oldTime, newTime;
float ratio;
try {
Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
before = System.currentTimeMillis();
String ss = (String) t.getTransferData(new DataFlavor("text/plain; class=java.lang.String"));
after = System.currentTimeMillis();
System.err.println("Size: " + ss.length());
newTime = after - before;
System.err.println("Time consumed: " + newTime);
initArray();
StringBuffer buf = new StringBuffer(new String(text));
int eoln_len = eoln.length();
before = System.currentTimeMillis();
for (int i = 0; i + eoln_len <= buf.length(); i++) {
if (eoln.equals(buf.substring(i, i + eoln_len))) {
buf.replace(i, i + eoln_len, "\n");
}
}
after = System.currentTimeMillis();
oldTime = after - before;
System.err.println("Old algorithm: " + oldTime);
ratio = oldTime / newTime;
System.err.println("Ratio: " + ratio);
if (ratio < RATIO_THRESHOLD) {
System.out.println("Time ratio failure!!");
System.exit(CODE_FAILURE);
}
} catch (Throwable e) {
e.printStackTrace();
System.exit(CODE_OTHER_FAILURE);
}
System.out.println("Test Pass!");
}
public static void initArray() {
text = new char[ARRAY_SIZE + 2];
for (int i = 0; i < ARRAY_SIZE; i += 3) {
text[i] = '\r';
text[i + 1] = '\n';
text[i + 2] = 'a';
}
eoln = "\r\n";
}
public void initialize() throws Exception {
initArray();
Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
cb.setContents(new StringSelection(new String(text)), null);
ProcessBuilder pb = ProcessTools.createTestJavaProcessBuilder(
ClipboardPerformanceTest.class.getName(),
"child"
);
Process process = ProcessTools.startProcess("Child", pb);
OutputAnalyzer outputAnalyzer = new OutputAnalyzer(process);
if (!process.waitFor(15, TimeUnit.SECONDS)) {
process.destroyForcibly();
throw new TimeoutException("Timed out waiting for Child");
}
outputAnalyzer.shouldHaveExitValue(0);
}
}
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