I don't know what type of encoding is it.
Dose any body know it?
<encrypted>
GE4dGgsGABAaSU9SRUIEGwsOHEJJQ04NAAQJAAIOGwpPRV9DTgscHAAADgwKSERFQgYPCAAaERZE SVRPTwwLABsLCwEHCQZOQk9PBAYLAAsZDQgADR1JT1JFQhYHAgALDgAHTkJPTxcEAQsHGxtCRVlJ SRwJAwBERU5IDgoKRElUT08SDA1ISRI=
</encrypted>
line one decode base64
\u0018N\u001d\u001a\v\u0006\0\u0010\u001aIOREB\u0004\u001b\v\u000e\u001cBICN\r\0\u0004\t\0\u0002\u000e\u001b\nOE_CN\v\u001c\u001c\0\0\u000e\f\nHDEB\u0006\u000f\b\0\u001a\u0011\u0016D
/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
import javax.xml.bind.DatatypeConverter;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
public static void main (String[] args) throws java.lang.Exception
{
byte[] bytes = DatatypeConverter.parseBase64Binary("CEwcBxcZHAAYSFJOWl4UGQoTAF1VU0wMHRgWHBIMGhdTWkNTTAoBAB8cHg4LVVhaXhYNCR0GDgpU S1VSUxMXEBkKFh0YFRZMQ1JTGxobAgoEERccHR9IUk5aXgYFAx0XERwXTENSUwgYEQkGBgddWUlL SAEVHBxUR09VEhUWVEtVUlMNEB1KSA8=");
String pass = "Username";
for (int i = 0; i < bytes.length; i++) {
bytes[i] ^= (byte)pass.charAt(i % pass.length());
System.out.print((char)bytes[i]);
}
}
}
Related
I have a problem connecting to the postgres database using PgPool and ResulSet, then the Statement of sql. Here is my class of service.
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.servlet.http.HttpSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.web.context.annotation.ApplicationScope;
//import io.vertx.reactivex.pgclient.PgPool;
import io.vertx.axle.pgclient.PgPool;
import ml.kalansow.domain.StudentFees;
import ml.kalansow.service.KalansowService;
#Service
#ApplicationScope
public class StudentFeesService implements KalansowService {
private static final Logger LOG = LoggerFactory.getLogger(StudentFeesService.class);
PgPool client;
// ----Constructor------------------------------------------
public StudentFeesService() {
// TODO Auto-generated constructor stub
};
// ------------------------------Method---------------------------------
#Override
public String getServiceName() {
return this.getClass().getName();
}
public void processGetFeesDetails(HttpSession session) {
String strStudentId = (String) session.getAttribute("StudentId");
StudentFees studentFees = new StudentFees();
if (strStudentId != null) {
// This is mandatory before calling the next method
studentFees.setStudentId(strStudentId);
populateFeesInfo(studentFees);
session.setAttribute("studentFees", studentFees);
} else {
LOG.error("Student Id is null");
}
}
private void populateFeesInfo(StudentFees studentFees) {
String strStudentI = studentFees.getStudentId();
io.vertx.sqlclient.impl.Connection connection = null;
Statement statement = null;
ResultSet resultSet = null;
StringBuffer sbQuery = new StringBuffer();
sbQuery.append("SELECT * FROM STUDENT_FEES WHERE STUDENT_I=");
sbQuery.append("" + strStudentI + "''");
if (strStudentI != null) {
//connection = DatabaseService.getDBConnection();
connection=(io.vertx.sqlclient.impl.Connection) client.getConnection();
try {
statement = ((Connection) connection).createStatement();
resultSet = statement.executeQuery(sbQuery.toString());
resultSet.next();
studentFees.setJanAcad(resultSet.getString("JAN_ACAD"));
studentFees.setFebAcad(resultSet.getString("FEB_ACAD"));
studentFees.setMarAcad(resultSet.getString("MAR_ACAD"));
studentFees.setAprAcad(resultSet.getString("APR_ACAD"));
studentFees.setMayAcad(resultSet.getString("MAY_ACAD"));
studentFees.setJunAcad(resultSet.getString("JUN_ACAD"));
studentFees.setJulAcad(resultSet.getString("JUL_ACAD"));
studentFees.setAugAcad(resultSet.getString("AUG_ACAD"));
studentFees.setSepAcad(resultSet.getString("SEP_ACAD"));
studentFees.setOctAcad(resultSet.getString("OCT_ACAD"));
studentFees.setNovAcad(resultSet.getString("NOV_ACAD"));
studentFees.setDecAcad(resultSet.getString("DEC_ACAD"));
} catch (SQLException e) {
LOG.error(e.getMessage());
} finally {
/*DatabaseService.closeDBConnection(statement, resultSet);
DatabaseService.realeaseDBConnection();*/
client.close();
}
} else {
LOG.error("Student id is null");
}
}
}
My application properties file contain datasource properties
quarkus.datasource.driver=org.postgresql.Driver
quarkus.reactive-datasource.url=vertx-reactive:postgresql://localhost:5432/test
quarkus.reactive-datasource.username=test
quarkus.reactive-datasource.password=test
And console is here
ERROR [io.qua.dev.DevModeMain] Failed to start Quarkus: java.lang.IllegalArgumentException: Multiple matching properties for name "datasource.url" property was matched by both public java.util.Optional io.quarkus.agroal.runtime.DataSourceRuntimeConfig.url and public java.util.Optional io.quarkus.reactive.pg.client.runtime.DataSourceConfig.url. This is likely because you have an incompatible combination of extensions that both define the same properties (e.g. including both reactive and blocking database extensions)
at io.quarkus.deployment.configuration.matching.PatternMapBuilder.addMember(PatternMapBuilder.java:71)
at io.quarkus.deployment.configuration.matching.PatternMapBuilder.addGroup(PatternMapBuilder.java:60)
at io.quarkus.deployment.configuration.matching.PatternMapBuilder.addMember(PatternMapBuilder.java:85)
at io.quarkus.deployment.configuration.matching.PatternMapBuilder.addGroup(PatternMapBuilder.java:60)
at io.quarkus.deployment.configuration.matching.PatternMapBuilder.makePatterns(PatternMapBuilder.java:35)
at io.quarkus.deployment.configuration.BuildTimeConfigurationReader.(BuildTimeConfigurationReader.java:107)
at io.quarkus.deployment.ExtensionLoader.loadStepsFrom(ExtensionLoader.java:174)
at io.quarkus.deployment.QuarkusAugmentor.run(QuarkusAugmentor.java:85)
at io.quarkus.runner.RuntimeRunner.run(RuntimeRunner.java:114)
at io.quarkus.dev.DevModeMain.doStart(DevModeMain.java:178)
at io.quarkus.dev.DevModeMain.start(DevModeMain.java:96)
You cannot use both the Agroal extension and the Reactive datasources together for the time being.
We are discussing possible ways to fix that here: https://groups.google.com/d/msg/quarkus-dev/3r0lquVsUsc/DVxX7SvQAQAJ .
But for now, your only choice is to use either one or the other.
We're developing a system that we're basing on OrientDB graphs (OrientDB 2.1.3). In the application, we have a thin pojo->graph persistence layer that should do the work properly, but I get OConcurrentModificationException when having multiple threads updating the database.
Here's an example scenario:
Create a Product vertex with edge to Color "Blue"
Simultaneously (while the transaction for creating Product 1 is open) create another Product vertex is created and also adds an edge to Color "Blue".
OConcurrentModificationException is thrown since the version of Color "Blue" vertex is updated. Note that I'm not trying to save or modify the Color "Blue" vertex itself.
As I understood the docs at http://orientdb.com/docs/2.1/Concurrency.html#concurrency-on-adding-edges setting -DridBag.embeddedToSbtreeBonsaiThreshold=-1 should help me avoid my problem, although it still doesn't work.
What am I missing? Is there anything else I can do to avoid this?
Update:
Stacktrace of the exception:
Error on releasing database 'infogileorientdatabasetest' in pool
com.orientechnologies.orient.core.exception.OConcurrentModificationException: Cannot UPDATE the record #40:1 because the version is not the latest. Probably you are updating an old record or it has been modified by another user (db=v34 your=v33)
at com.orientechnologies.orient.core.conflict.OVersionRecordConflictStrategy.checkVersions(OVersionRecordConflictStrategy.java:55)
at com.orientechnologies.orient.core.conflict.OVersionRecordConflictStrategy.onUpdate(OVersionRecordConflictStrategy.java:42)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.checkAndIncrementVersion(OAbstractPaginatedStorage.java:2279)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.doUpdateRecord(OAbstractPaginatedStorage.java:1911)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.commitEntry(OAbstractPaginatedStorage.java:2364)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.commit(OAbstractPaginatedStorage.java:1111)
at com.orientechnologies.orient.core.tx.OTransactionOptimistic.doCommit(OTransactionOptimistic.java:609)
at com.orientechnologies.orient.core.tx.OTransactionOptimistic.commit(OTransactionOptimistic.java:156)
at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2582)
at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.commit(ODatabaseDocumentTx.java:2551)
at com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.commit(ONetworkProtocolBinary.java:1221)
at com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.executeRequest(ONetworkProtocolBinary.java:400)
at com.orientechnologies.orient.server.network.protocol.binary.OBinaryNetworkProtocolAbstract.execute(OBinaryNetworkProtocolAbstract.java:223)
at com.orientechnologies.common.thread.OSoftThread.run(OSoftThread.java:77)
Update 2 - test case
I have reproduced the error using this test case. I would be delighted if there's something else I've done wrong to cause the problem... :-)
Update 3 Updated test case with OGlobalConfiguration.RID_BAG_EMBEDDED_TO_SBTREEBONSAI_THRESHOLD.setValue(-1) in a static block.
package se.infogile.persistence.orientdb;
import com.orientechnologies.orient.client.remote.OServerAdmin;
import com.orientechnologies.orient.core.config.OGlobalConfiguration;
import com.orientechnologies.orient.core.db.OPartitionedDatabasePool;
import com.orientechnologies.orient.core.db.OPartitionedDatabasePoolFactory;
import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx;
import com.orientechnologies.orient.core.exception.OConcurrentModificationException;
import com.orientechnologies.orient.core.exception.OConfigurationException;
import com.orientechnologies.orient.core.exception.OStorageException;
import com.orientechnologies.orient.core.tx.OTransaction;
import com.orientechnologies.orient.enterprise.channel.binary.OResponseProcessingException;
import com.orientechnologies.orient.server.OServer;
import com.orientechnologies.orient.server.OServerMain;
import com.orientechnologies.orient.server.config.OServerConfiguration;
import com.orientechnologies.orient.server.config.OServerConfigurationLoaderXml;
import com.orientechnologies.orient.server.config.OServerNetworkListenerConfiguration;
import com.tinkerpop.blueprints.Vertex;
import com.tinkerpop.blueprints.impls.orient.OrientGraph;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.*;
/**
* Created by heintz on 14/10/15.
*/
public class OrientDBEdgeProblemTest {
static {
OGlobalConfiguration.RID_BAG_EMBEDDED_TO_SBTREEBONSAI_THRESHOLD.setValue(-1);
}
private static OPartitionedDatabasePoolFactory dbPoolFactory = new OPartitionedDatabasePoolFactory(100);
private static Logger logger = LoggerFactory.getLogger(OrientDBEdgeProblemTest.class);
private OServer server = null;
private static ExecutorService executorService = Executors.newFixedThreadPool(10);
private static final String dbName = "edgeproblemtest";
#Test
public void testVersionIncrementError() throws Throwable {
OrientGraph graph = getGraph(dbName);
graph.getRawGraph().setDefaultTransactionMode();
graph.createVertexType("Product");
graph.createVertexType("Color");
graph.createEdgeType("HasColor");
graph.getRawGraph().begin(OTransaction.TXTYPE.OPTIMISTIC);
// graph.begin();
Vertex v1 = graph.addVertex("Color", "name", "Blue");
graph.commit();
graph.shutdown();
char[] alphabet = new char[] {'A','B','C','D','E','F','G'};
List<Future> futures = new ArrayList<>();
for (int i = 0; i < 2; i++) {
int pos = i;
futures.add(executorService.submit(new Callable<Object>() {
#Override
public Object call() throws Exception {
OrientGraph g = getGraph(dbName);
try {
g.begin();
Vertex v2 = g.addVertex("Product", "name", "Product "+alphabet[pos]);
g.addEdge(null, v2, v1, "HasColor");
Thread.sleep(200);
g.commit();
} catch (OConcurrentModificationException ocme) {
logger.error("Exception while saving: ", ocme);
Assert.fail("OConcurrentModificationException");
} finally {
g.shutdown();
}
return null;
}
}));
}
for (Future f : futures) {
f.get();
}
executorService.shutdown();
executorService.awaitTermination(5, TimeUnit.SECONDS);
}
#AfterSuite
public void tearDown() throws Exception {
logger.info("Shutting down OrientDB");
if (server != null) {
server.shutdown();
}
}
private OrientGraph getGraph(String dbName) {
String _db = "remote:localhost:3424";
String url = _db + "/" + dbName;
ODatabaseDocumentTx db = null;
try {
OPartitionedDatabasePool pool = dbPoolFactory.get(url,
"root",
"admin");
db = pool.acquire();
} catch (OResponseProcessingException | OConfigurationException | OStorageException oce) {
try {
logger.info("creating new database named " + dbName);
System.err.println("Before DB creation");
OServerAdmin serverAdmin = new OServerAdmin(_db).connect(
"root",
"admin"
);
serverAdmin.createDatabase(dbName, "document", "plocal");
serverAdmin.close();
System.err.println("After DB creation");
} catch (IOException ex) {
logger.error("Unable to create database " + dbName, ex);
}
OPartitionedDatabasePool pool = dbPoolFactory.get(url,
"root",
"admin");
db = pool.acquire();
}
return new OrientGraph(db);
}
#BeforeSuite
public void setUpDatabase() throws Exception {
File f = new File(".");
InputStream is = GraphPersistenceServiceTest.class.getResourceAsStream("/orientdb.config");
Assert.assertNotNull(is);
logger.info("Starting OrientDB");
server = OServerMain.create();
OServerConfigurationLoaderXml loaderXml = new OServerConfigurationLoaderXml(OServerConfiguration.class, GraphPersistenceServiceTest.class.getResourceAsStream("/orientdb.config"));
OServerConfiguration oServerConfiguration = new OServerConfiguration(loaderXml);
System.setProperty("ORIENTDB_ROOT_PASSWORD", "admin");
System.setProperty("RUNMODE", "UNITTEST");
OServerNetworkListenerConfiguration networkConfig = oServerConfiguration.network.listeners.iterator().next();
networkConfig.portRange = "3424-3430";
server.setServerRootDirectory("./target/orientdb");
server.startup(oServerConfiguration);
File serverDir = new File("./target/orientdb");
if (serverDir.exists()) {
FileUtils.deleteDirectory(serverDir);
}
serverDir.mkdirs();
File dbDir = new File(serverDir, "databases");
dbDir.mkdirs();
server.activate();
OGlobalConfiguration.dumpConfiguration(System.out);
Thread.sleep(2000);
}
}
Hi that is because when you add edges to the vertex, vertex itself is modified to store this information, but you may work in mode when information about edges is stored in separate object. Merely use property
-DridBag.embeddedToSbtreeBonsaiThreshold=true and you will rid off this exception.
I am trying to understand the difference between behavior of any byte oriented stream (say FileInputStream) and any Character oriented stream (say FileReader).
I went through the following: http://docs.oracle.com/javase/tutorial/essential/io/charstreams.html
First program:
`import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class CopyBytes {
public static void main(String[] args) throws IOException {
FileInputStream in = null;
FileOutputStream out = null;
try {
in = new FileInputStream("xanadu.txt");
out = new FileOutputStream("outagain.txt");
int c;
while ((c = in.read()) != -1) {
out.write(c);
}
} finally {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
}
}
}
`
Second program:
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class CopyCharacters {
public static void main(String[] args) throws IOException {
FileReader inputStream = null;
FileWriter outputStream = null;
try {
inputStream = new FileReader("xanadu.txt");
outputStream = new FileWriter("characteroutput.txt");
int c;
while ((c = inputStream.read()) != -1) {
outputStream.write(c);
}
} finally {
if (inputStream != null) {
inputStream.close();
}
if (outputStream != null) {
outputStream.close();
}
}
}
}
It says:
in CopyCharacters, the int variable holds a character value in its last 16 bits; in CopyBytes, the int variable holds a byte value in its last 8 bits.
My question is: I wanted to check this above sentence so printed value of c (integer defined in program) while it was being copied. Now the value of c must be different at consecutive reads because in byte stream it reads byte by byte, so have byte value, while in character stream it reads character by character, so has character ASCII value. But it is giving same values of c. Why?
Tried to think it in different way, If my source file has only one character say 'a'.
Now CopyBytes should run while loop atleast 2 times because character takes 2 bytes. But it is running only once.
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
//in CopyCharacters, the int variable holds a character value in its last 16 bits;
//in CopyBytes, the int variable holds a byte value in its last 8 bits.
public class CopyCharacters {
public static void main(String[] args) throws IOException {
FileReader inputStream = null;
FileWriter outputStream = null;
try {
inputStream = new FileReader("source.txt");
outputStream = new FileWriter("characteroutput.txt");
int c;
while ((c = inputStream.read()) != -1) {
System.out.println("one");
outputStream.write(c);
}
} finally {
if (inputStream != null) {
inputStream.close();
}
if (outputStream != null) {
outputStream.close();
}
}
}
}
Here one is printed only once
I am reading a excel file now I want to pass it to the jsp file.
I need to pass the test object to the jsp file so that I can display it to the browser.
import java.io.IOException;
import java.io.*;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
public class Readexcl
{
private String inputFile;
public void setInputFile(String inputFile) {
this.inputFile = inputFile;
}
public void read() throws IOException {
File inputWorkbook = new File(inputFile);
Workbook w;
try {
w = Workbook.getWorkbook(inputWorkbook);
Sheet sheet = w.getSheet(0);
for (int i = 0; i < sheet.getRows(); i++)
{
Cell cell = sheet.getCell(0, i);
System.out.print(cell.getContents()+" ");
cell = sheet.getCell(1, i);
System.out.println(cell.getContents()+" ");
//cell = sheet.getCell(2, i);
//System.out.println(cell.getContents());
}
}
catch (BiffException e)
{
e.printStackTrace();
}
}
public static void main(String[] args) throws IOException {
Readexcl test = new Readexcl();
test.setInputFile("c:\\DATA.xls");
test.read();
}
}
If you are in a servlet (but the same is valid if you are in a jsp) you don't need to pass anything...just set the apptopriate content type in response, get the ServletOutputStream, read the xls and write using that stream
If you are in a main it unusual but not impossible...just create a servlet that accept base64 encoded data. In your main read the file, encode the stream in base64band then make an http post call to that servlet, posting the encoded data. In your servlet doPost() method decode the data and write out using ServletOutputStream
I am very new to Flex. I want to retrieve file's binary content using flex but failed. Here is the code so far:
// ActionScript file
package source.fileApi{
import flash.display.Sprite;
import flash.external.ExternalInterface;
import flash.system.Security;
import flash.utils.setTimeout;
import flash.net.FileReference;
import flash.net.FileFilter;
import flash.events.IOErrorEvent;
import flash.events.Event;
import flash.utils.ByteArray;
import mx.utils.URLUtil;
public class FileAPIMain {
private var debug:Boolean = false;
private var dataReaded:String;
private var fr:FileReference;
public function FileAPIMain():void{
ExternalInterface.addCallback("setDebug", setDebug);
ExternalInterface.addCallback("onLoadFileClick", onLoadFileClick);
ExternalInterface.call("FileReader.__onFlashInitialized");
}
public function log(message:String):void {
if (debug) {
ExternalInterface.call("FileReader.__log", encodeURIComponent("[FileReader] " + message));
}
}
public function setDebug(val:Boolean):void {
debug = val;
if (val) {
log("debug enabled");
}
}
public function onLoadFileClick():void{
//create the FileReference instance
fr = new FileReference();
//listen for when they select a file
fr.addEventListener(Event.SELECT, onFileSelect);
//listen for when then cancel out of the browse dialog
fr.addEventListener(Event.CANCEL,onCancel);
//open a native browse dialog that filters for text files
fr.browse();
}
private function onFileSelect(e:Event):void{
fr.removeEventListener(Event.SELECT, onFileSelect);
//listen for when the file has loaded
fr.addEventListener(Event.COMPLETE, onLoadComplete);
//listen for any errors reading the file
fr.addEventListener(IOErrorEvent.IO_ERROR, onLoadError);
//load the content of the file
fr.load();
}
private function onCancel(e:Event):void{
log("File Browse Canceled");
fr = null;
}
private function onLoadComplete(e:Event):void{
fr.removeEventListener(Event.COMPLETE, onLoadComplete);
//get the data from the file as a ByteArray
var data:ByteArray = fr.data as ByteArray;
dataReaded = data.readUTFBytes(data.bytesAvailable);
ExternalInterface.call("FileReader.__getSize", fr.size);
ExternalInterface.call("FileReader.__getName", fr.name);
ExternalInterface.call("FileReader.__getData", dataReaded);
ExternalInterface.call("FileReader.__takeAction");
//clean up the FileReference instance
fr = null;
}
private function onLoadError(e:IOErrorEvent):void{
log("Error loading file : " + e.text);
}
}
}
But this did not give me the binary content of the file.. Could any one please tell me how to retrieve the full binary content of the given file using Flex (I am using FP 10.0).....
If you user FLashPlayer 10+ then make use of FileReference.
See the pure AS3 sample below
var buttonShape:Shape = new Shape();
buttonShape.graphics.beginFill(0x336699);
buttonShape.graphics.drawCircle(50, 50, 25);
var button = new SimpleButton(buttonShape, buttonShape, buttonShape, buttonShape);
addChild(button);
var fileRef:FileReference= new FileReference();
button.addEventListener(MouseEvent.CLICK, onButtonClick);
function onButtonClick(e:MouseEvent):void
{
fileRef.browse([new FileFilter("Images", "*.jpg;*.gif;*.png")]);
fileRef.addEventListener(Event.SELECT, onFileSelected);
}
function onFileSelected(e:Event):void
{
fileRef.addEventListener(Event.COMPLETE, onFileLoaded);
fileRef.load();
}
function onFileLoaded(e:Event):void
{
// here we get the data
var theData:Object = e.target.data;
// next you can manipulate the data as you like! ;) depending on the type
}