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JMeter add-on that defines a number of samplers for load testing WebSocket applications.
/*
* Copyright © 2016, 2017, 2018 Peter Doornbosch
*
* This file is part of JMeter-WebSocket-Samplers, a JMeter add-on for load-testing WebSocket applications.
*
* JMeter-WebSocket-Samplers is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* JMeter-WebSocket-Samplers 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 Lesser General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see result = new ArrayList<>();
for (String element : bytes) {
if (element.startsWith("0x"))
result.add(Integer.decode(element).byteValue());
else {
for (int i = 0; i < element.length(); i += 2) {
String hexByte = element.substring(i, Math.min(element.length(), i+2));
result.add((byte) Integer.parseInt(hexByte, 16));
}
}
}
return toByteArray(result);
}
else
return new byte[0];
}
public static String formatBinary(byte[] data) {
StringBuilder builder = new StringBuilder();
for (byte b: data)
builder.append(String.format("%#04x ", b)); // # defines the leading 0x, which takes 2 chars, hence width is 2 + 2 = 4
return builder.toString().trim();
}
public static String formatBinaryInTable(byte[] data, int rowLength, boolean showRowAddress, boolean showAscii) {
return formatBinaryInTable(data, data.length, rowLength, showRowAddress, showAscii);
}
public static String formatBinaryInTable(byte[] data, int dataSize, int rowLength, boolean showRowAddress, boolean showAscii) {
StringBuilder builder = new StringBuilder();
int i;
for (i = 0; i < dataSize; i++) {
if (showRowAddress && i % rowLength == 0)
builder.append(String.format("%04x ", i));
builder.append(String.format("%02x", data[i]));
if ((i + 1) % rowLength == 0) {
if (showAscii) {
builder.append(" ");
for (int j = i + 1 - rowLength; j <= i; j++) {
if (isPrintableChar((char) data[j]))
builder.append((char) data[j]);
else
builder.append(".");
if ((j + 1) % rowLength % 8 == 0 && (j + 1) % rowLength != 0)
builder.append(" ");
}
}
builder.append("\n");
} else if ((i + 1) % rowLength % 8 == 0)
builder.append(" ");
else if (i != dataSize - 1)
builder.append(" ");
else {
if (showAscii) {
for (int j = i + 1; j % rowLength != 0; j++) {
builder.append(" ");
if (j % rowLength % 8 == 0)
builder.append(" ");
}
builder.append(" ");
int j;
for (j = i - (i % rowLength); j <= i; j++) {
if (isPrintableChar((char) data[j]))
builder.append((char) data[j]);
else
builder.append(".");
if ((j + 1) % rowLength % 8 == 0 && (j + 1) % rowLength != 0)
builder.append(" ");
}
}
builder.append("\n");
}
}
return builder.toString();
}
public static String formatBinary(byte[] data, int maxBytes, String truncationSuffix) {
StringBuilder builder = new StringBuilder();
int byteCount = Math.min(data.length, maxBytes);
for (int i = 0; i < byteCount; i++)
builder.append(String.format("%#04x ", data[i])); // # defines the leading 0x, which takes 2 chars, hence width is 2 + 2 = 4
if (byteCount < data.length)
return builder.toString().trim() + truncationSuffix;
else
return builder.toString().trim();
}
public static boolean contains(byte[] source, byte[] value) {
if (value.length == 0)
return false;
for (int i = 0; i < source.length; i++) {
if (value[0] == source[i]) {
boolean equal = true;
for (int j = 0; equal && j < value.length; j++) {
if (i+j >= source.length || value[j] != source[i+j])
equal = false;
}
if (equal)
return true;
}
}
return false;
}
private static byte[] toByteArray(List bytes) {
byte[] result = new byte[bytes.size()];
for (int i = 0; i < bytes.size(); i++)
result[i] = bytes.get(i);
return result;
}
public static boolean isPrintableChar( char c ) {
Character.UnicodeBlock block = Character.UnicodeBlock.of( c );
return (!Character.isISOControl(c)) &&
c != KeyEvent.CHAR_UNDEFINED &&
block != null &&
block != Character.UnicodeBlock.SPECIALS;
}
}