/*
* Copyright 2012-2017 Aerospike, Inc.
*
* Portions may be licensed to Aerospike, Inc. under one or more contributor
* license agreements WHICH ARE COMPATIBLE WITH THE APACHE LICENSE, VERSION 2.0.
*
* 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 com.aerospike.client.util;
import java.io.ByteArrayOutputStream;
import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.math.BigInteger;
import java.net.SocketException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.aerospike.client.AerospikeException;
public final class Util {
public static void sleep(long millis) {
try {
Thread.sleep(millis);
}
catch (InterruptedException ie) {
}
}
public static String getErrorMessage(Exception e) {
// Connection error messages don't need a stacktrace.
Throwable cause = e.getCause();
if (e instanceof SocketException || e instanceof AerospikeException.Connection ||
cause instanceof SocketTimeoutException) {
return e.getMessage();
}
if (e instanceof EOFException || cause instanceof EOFException) {
return EOFException.class.getName();
}
// Unexpected exceptions need a stacktrace.
StringWriter sw = new StringWriter(1000);
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
return sw.toString();
}
public static byte[] readFile(File file) {
try {
byte[] bytes = new byte[(int)file.length()];
FileInputStream in = new FileInputStream(file);
try {
int pos = 0;
int len = 0;
while (pos < bytes.length) {
len = in.read(bytes, pos, bytes.length - pos);
pos += len;
}
return bytes;
}
finally {
in.close();
}
}
catch (Exception e) {
throw new AerospikeException("Failed to read " + file.getAbsolutePath(), e);
}
}
public static byte[] readResource(ClassLoader resourceLoader, String resourcePath) {
try {
URL url = resourceLoader.getResource(resourcePath);
InputStream is = url.openStream();
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream(8192);
byte[] bytes = new byte[8192];
int length;
while ((length = is.read(bytes)) > 0) {
bos.write(bytes, 0, length);
}
return bos.toByteArray();
}
finally {
is.close();
}
}
catch (Exception e) {
throw new AerospikeException("Failed to read resource " + resourcePath, e);
}
}
/**
* Convert a comma separated array of strings to a BigInteger array.
* Each individual string will be treated as hex if the string prefix is "0x".
*/
public static BigInteger[] toBigIntegerArray(String str) {
String[] strArray = str.split(",");
BigInteger[] bigArray = new BigInteger[strArray.length];
int count = 0;
for (String s : strArray) {
if (s.startsWith("0x")) {
bigArray[count] = new BigInteger(s.substring(2), 16);
}
else if (s.indexOf(':') >= 0) {
// Some certificates show serial numbers in hex pairs delimited by colons.
// Remove those colons before converting to BigInteger.
s = s.replaceAll(":", "");
bigArray[count] = new BigInteger(s, 16);
}
else {
bigArray[count] = new BigInteger(s);
}
count++;
}
return bigArray;
}
/**
* Convert a string to a time stamp using the same algorithm as the Aerospike loader.
*/
public static long toTimeStamp(String dateTime, SimpleDateFormat format, int timeZoneOffset) throws ParseException {
Date formatDate = format.parse(dateTime);
long miliSecondForDate = formatDate.getTime()
- timeZoneOffset;
return miliSecondForDate / 1000;
}
/**
* Convert a string to a time stamp using a string pattern.
*/
public static long toTimeStamp(String dateTime, String pattern, int timeZoneOffset) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat(pattern);
return toTimeStamp(dateTime, format, timeZoneOffset);
}
/**
* Convert a time stamp (time in milliseconds) to a string.
*/
public static String fromTimeStamp(long timeStamp, SimpleDateFormat format){
Date formatDate = new Date(timeStamp);
return format.format(formatDate);
}
/**
* Convert a time stamp (time in milliseconds) to a string using a string pattern.
*/
public static String fromTimeStamp(long timeStamp, String pattern){
SimpleDateFormat format = new SimpleDateFormat(pattern);
return fromTimeStamp(timeStamp, format);
}
/**
* Convert object returned from server to long.
*/
public static long toLong(Object obj) {
// The server always returns numbers as longs if found.
// If not found, the server may return null. Convert null to zero.
return (obj != null)? (Long)obj : 0;
}
/**
* Convert object returned from server to int.
*/
public static int toInt(Object obj) {
// The server always returns numbers as longs, so get long and cast.
return (int)toLong(obj);
}
/**
* Convert object returned from server to short.
*/
public static short toShort(Object obj) {
// The server always returns numbers as longs, so get long and cast.
return (short)toLong(obj);
}
/**
* Convert object returned from server to byte.
*/
public static byte toByte(Object obj) {
// The server always returns numbers as longs, so get long and cast.
return (byte)toLong(obj);
}
/**
* Convert object returned from server to boolean.
*/
public static boolean toBoolean(Object obj) {
// The server always returns booleans as longs, so get long and convert.
return (toLong(obj) != 0) ? true : false;
}
}