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org.apache.rocketmq.client.java.misc.Utilities Maven / Gradle / Ivy
/*
* 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 language governing permissions and
* limitations under the License.
*/
package org.apache.rocketmq.client.java.misc;
import apache.rocketmq.v2.ReceiveMessageRequest;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.nio.ByteBuffer;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.Enumeration;
import java.util.Locale;
import java.util.Map;
import java.util.Random;
import java.util.zip.CRC32;
import java.util.zip.DeflaterOutputStream;
import java.util.zip.InflaterInputStream;
import org.apache.rocketmq.shaded.commons.lang3.StringUtils;
public class Utilities {
public static final int MASTER_BROKER_ID = 0;
public static final Locale LOCALE = new Locale("zh", "CN");
private static final String OS_NAME = "os.name";
private static final String OS_VERSION = "os.version";
private static final Random RANDOM = new SecureRandom();
private static final int PROCESS_ID_NOT_SET = -2;
private static final int PROCESS_ID_NOT_FOUND = -1;
private static int processId = PROCESS_ID_NOT_SET;
private static final String HOST_NAME_NOT_FOUND = "HOST_NAME_NOT_FOUND";
private static final ThreadLocal PROTOCOL_VERSION_THREAD_LOCAL = new ThreadLocal<>();
private static final ThreadLocal HOST_NAME_THREAD_LOCAL = new ThreadLocal<>();
private static final ThreadLocal MAC_ADDRESS_THREAD_LOCAL = new ThreadLocal<>();
/**
* Used to build output as Hex
*/
private static final char[] DIGITS_LOWER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
'e', 'f'};
/**
* Used to build output as Hex
*/
private static final char[] DIGITS_UPPER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D',
'E', 'F'};
private Utilities() {
}
public static byte[] macAddress() {
byte[] macAddress = MAC_ADDRESS_THREAD_LOCAL.get();
if (null != macAddress) {
return macAddress.clone();
}
try {
final Enumeration networkInterfaces = NetworkInterface.getNetworkInterfaces();
while (networkInterfaces.hasMoreElements()) {
final NetworkInterface networkInterface = networkInterfaces.nextElement();
final byte[] mac = networkInterface.getHardwareAddress();
if (null == mac) {
continue;
}
macAddress = mac;
MAC_ADDRESS_THREAD_LOCAL.set(macAddress);
return macAddress.clone();
}
} catch (Throwable ignore) {
// Ignore on purpose.
}
byte[] randomBytes = new byte[6];
RANDOM.nextBytes(randomBytes);
macAddress = randomBytes;
MAC_ADDRESS_THREAD_LOCAL.set(macAddress);
return macAddress.clone();
}
public static String getProtocolVersion() {
String protocolVersion = PROTOCOL_VERSION_THREAD_LOCAL.get();
if (null != protocolVersion) {
return protocolVersion;
}
protocolVersion = ReceiveMessageRequest.class.getName().split("\\.")[2];
PROTOCOL_VERSION_THREAD_LOCAL.set(protocolVersion);
return protocolVersion;
}
public static int processId() {
if (processId != PROCESS_ID_NOT_SET) {
return processId;
}
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
// Format: "pid@hostname"
String name = runtime.getName();
try {
processId = Integer.parseInt(name.substring(0, name.indexOf('@')));
} catch (Throwable ignore) {
processId = PROCESS_ID_NOT_FOUND;
}
return processId;
}
public static String hostName() {
String hostName = HOST_NAME_THREAD_LOCAL.get();
if (null != hostName) {
return hostName;
}
try {
hostName = InetAddress.getLocalHost().getHostName();
HOST_NAME_THREAD_LOCAL.set(hostName);
return hostName;
} catch (Throwable ignore) {
hostName = HOST_NAME_NOT_FOUND;
HOST_NAME_THREAD_LOCAL.set(hostName);
return hostName;
}
}
public static byte[] compressBytesGzip(final byte[] src, final int level) throws IOException {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(src.length);
java.util.zip.Deflater defeater = new java.util.zip.Deflater(level);
DeflaterOutputStream deflaterOutputStream =
new DeflaterOutputStream(byteArrayOutputStream, defeater);
try {
deflaterOutputStream.write(src);
deflaterOutputStream.finish();
deflaterOutputStream.close();
return byteArrayOutputStream.toByteArray();
} finally {
try {
byteArrayOutputStream.close();
} catch (IOException ignore) {
// Exception not expected here.
}
defeater.end();
}
}
public static byte[] uncompressBytesGzip(final byte[] src) throws IOException {
byte[] uncompressData = new byte[src.length];
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(src);
InflaterInputStream inflaterInputStream = new InflaterInputStream(byteArrayInputStream);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(src.length);
try {
int length;
while ((length = inflaterInputStream.read(uncompressData, 0, uncompressData.length)) > 0) {
byteArrayOutputStream.write(uncompressData, 0, length);
}
byteArrayOutputStream.flush();
return byteArrayOutputStream.toByteArray();
} finally {
try {
byteArrayInputStream.close();
} catch (IOException ignore) {
// Exception not expected here.
}
try {
inflaterInputStream.close();
} catch (IOException ignore) {
// Exception not expected here.
}
try {
byteArrayOutputStream.close();
} catch (IOException ignore) {
// Exception not expected here.
}
}
}
public static String encodeHexString(ByteBuffer byteBuffer, boolean toLowerCase) {
return new String(encodeHex(byteBuffer, toLowerCase));
}
public static char[] encodeHex(ByteBuffer byteBuffer, boolean toLowerCase) {
return encodeHex(byteBuffer, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
}
public static String encodeHexString(final byte[] data, final boolean toLowerCase) {
return new String(encodeHex(data, toLowerCase));
}
public static char[] encodeHex(final byte[] data, final boolean toLowerCase) {
return encodeHex(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
}
protected static char[] encodeHex(final ByteBuffer data, final char[] toDigits) {
return encodeHex(data.array(), toDigits);
}
protected static char[] encodeHex(final byte[] data, final char[] toDigits) {
final int l = data.length;
final char[] out = new char[l << 1];
// Two characters form the hex value.
for (int i = 0, j = 0; i < l; i++) {
out[j++] = toDigits[(0xF0 & data[i]) >>> 4];
out[j++] = toDigits[0x0F & data[i]];
}
return out;
}
public static String crc32CheckSum(byte[] array) {
CRC32 crc32 = new CRC32();
// Do not use crc32.update(array) directly for the compatibility, which has been marked as 'since Java1.9'.
crc32.update(array, 0, array.length);
return Long.toHexString(crc32.getValue()).toUpperCase(LOCALE);
}
public static String md5CheckSum(byte[] array) throws NoSuchAlgorithmException {
final MessageDigest digest = MessageDigest.getInstance("MD5");
digest.update(array);
return encodeHexString(digest.digest(), false);
}
public static String sha1CheckSum(byte[] array) throws NoSuchAlgorithmException {
final MessageDigest digest = MessageDigest.getInstance("SHA-1");
digest.update(array);
return encodeHexString(digest.digest(), false);
}
public static String stackTrace() {
return stackTrace(Thread.getAllStackTraces());
}
public static String stackTrace(Map map) {
StringBuilder result = new StringBuilder();
try {
for (Map.Entry entry : map.entrySet()) {
StackTraceElement[] elements = entry.getValue();
Thread thread = entry.getKey();
if (elements != null && elements.length > 0) {
String threadName = entry.getKey().getName();
result.append(String.format("%-40sTID: %d STATE: %s%n", threadName, thread.getId(),
thread.getState()));
for (StackTraceElement el : elements) {
result.append(String.format("%-40s%s%n", threadName, el.toString()));
}
result.append("\n");
}
}
} catch (Throwable e) {
result.append(e);
}
return result.toString();
}
public static String getOsDescription() {
final String osName = Utilities.getOsName();
if (null == osName) {
return StringUtils.EMPTY;
}
String version = Utilities.getOsVersion();
return null != version ? osName + StringUtils.SPACE + version : osName;
}
public static String getOsName() {
try {
return System.getProperty(OS_NAME);
} catch (Throwable t) {
// ignore on purpose.
return null;
}
}
public static String getOsVersion() {
try {
return System.getProperty(OS_VERSION);
} catch (Throwable t) {
// ignore on purpose.
return null;
}
}
}
