I have a given FTP Server. I can connect to the server per WinSCP and other programs. I had allready a connection via Java to the server but after a while I can not connect. Per WinSCP I can connect the whole time. Now there is the question if the server is the reason of the problem or the program.
There is my Code:
private FTPClient ftpClient = null;
public FtpServerConnector() throws Exception {
ftpClient = new FTPClient();
ftpClient.connect(url);
ftpClient.login(username, password);
}
public List<FTPFile> getDirectory(String directoryPath) throws Exception {
FTPFile[] files = ftpClient.listFiles(directoryPath);
List<FTPFile> result = new ArrayList<FTPFile>();
for (FTPFile ftpFile : files) {
if (ftpFile.getTimestamp().getTime().getTime() >= Long.parseLong("1451606400000")) {
result.add(ftpFile);
}
}
return result;
}
public static void main(String[] args) {
try {
FtpServerConnector ftpServerConnector = new FtpServerConnector();
List<FTPFile> folders = ftpServerConnector.getDirectory("/");
for (FTPFile ftpFile : folders) {
System.out.println(ftpFile.getName());
}
} catch (Exception e) {
e.printStackTrace();
}
}
There is the Exception:
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
at java.net.SocketInputStream.read(SocketInputStream.java:170)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
at java.io.InputStreamReader.read(InputStreamReader.java:184)
at java.io.BufferedReader.fill(BufferedReader.java:161)
at java.io.BufferedReader.read(BufferedReader.java:182)
at org.apache.commons.net.io.CRLFLineReader.readLine(CRLFLineReader.java:58)
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:314)
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:294)
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:483)
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:608)
at org.apache.commons.net.ftp.FTP.port(FTP.java:932)
at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:812)
at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:759)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3293)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:3271)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2930)
at com.kianaanalytics.eventManagement.util.FtpServerConnector.getDirectory(FtpServerConnector.java:38)
at com.kianaanalytics.eventManagement.util.ImportWorker.getAllNewFairFolders(ImportWorker.java:19)
It appeared that the directory has "too many" files inside of it - enough to be too long to throw SocketTimeout Exception.
You didn't mention what version are you using in FTP-client,
This issue seems to handle something similar - I would consider upgrading version if its lower than 3.4.
https://issues.apache.org/jira/browse/NET-552
Related
I am trying to read a text file twice in order to calculate an average (calcAverage) and then to filter on the average to get a results list (processFile). When the second step is run the exception,
java.io.UncheckedIOException: java.io.IOException: Stream closed
is thrown.
Below is a simplified version of my failing code and a unit-test to drive the code.
A parameter (source) of type Reader is passed into App from a unit test and is a FileReader to a text file. I dont know how to access the File handler (or filename) from the Reader object to re-open it - I've tried implementing this inside App and this would fix the problem. The method signature of runProcess (Reader source) can not be changed - the other method signatures however can be.
I am using a try-with-resources block to open the Reader object and to read it through - its then closed automatically - which is all fine. I just need a way to re-open the file from the Reader to perform the filtering for pass-2.
I have read from similar questions, that the BufferedReader is like an iterator and you can only read it once.
I have tried using the mark() and reset() methods on my source object, but this throws an exception that these aren't supported.
I could read the whole file into a List object and then use this to calculate both steps but I dont know how large my file is going to be and so if possible would like to try and find a solution using the approach below.
Does anyone know how I can implement this ?
public class App {
public static void runProcess(Reader source) {
Collection<?> col = calcAverage(source);
processFile(source).forEach(x -> System.out.println(x));
}
private static Collection processFile(Reader source) {
Collection<?> col = processFile(source, ((BufferedReader reader) -> reader.lines()
.skip(1)
.collect(Collectors.toList()))
);
return col;
}
private static Collection<?> calcAverage(Reader source) {
Collection<?> col = processFile(source, ((BufferedReader reader) -> reader.lines()
.skip(1)
.collect(Collectors.toList())));
return col;
}
private static Collection<?> processFile(Reader source, BufferedReaderProcessor p){
try (BufferedReader reader = new BufferedReader(source)) {
return p.process(reader);
}catch (FileNotFoundException f){
f.printStackTrace();
return null;
}catch (IOException e){
e.printStackTrace();
return null;
}catch (Exception ex){
ex.printStackTrace();
return null;
}
}
#FunctionalInterface
public interface BufferedReaderProcessor {
Collection<?> process(BufferedReader b) throws IOException;
}
}
public class AppTest {
#Test
public void shouldReadFileTwice() throws FileNotFoundException {
App.runProcess(openFile("src/main/java/functions/example4/resources/list-of-fruits"));
}
private static Reader openFile(String filename) throws FileNotFoundException {
return new FileReader(new File(filename));
}
}
I believe you shouldn't use try with resources. It calls close on its BufferedReader which causes all the incapsulated readers to be closed.
I.e. it closes BufferedReader, Reader and FileReader.
When you invoke calcAverage in App::runProcess it closes all the readers. Then you're trying to read closed Reader when calling processFile on the next line.
i am trying drill-jdbc connectivity through java code.
Error is:-
java.sql.SQLException: Failure in connecting to Drill: oadd.org.apache.drill.exec.rpc.RpcException: CONNECTION : java.net.ConnectException: Connection refused: no further information: localhost/127.0.0.1:31010
So the steps followed are below:-
wget http://www-eu.apache.org/dist/drill/drill-1.12.0/apache-drill-1.12.0.tar.gz
tar -xvf apache-drill-1.12.0.tar.gz
cd apache-drill-1.12.0
cd bin
./drillbit.sh start -Ddrill.exec.http.port=8765
To check check its running under zookeeeper
cd /usr/hdp/current/zookeeper-client
./zkCli.sh
ls /drill
In apache-drill-1.12.0/bin
started drill-localhost # ./drill-localhost
received contents "OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512M; support was removed in 8.0 apache drill 1.12.0"
normal database queries were working properly
is there any dependancy between jdk -version?
Java Code:-
import java.sql.*;
public class DrillJDBCExample {
static final String JDBC_DRIVER = "org.apache.drill.jdbc.Driver";
static final String DB_URL = "jdbc:drill:drillbit=localhost:";//"jdbc:drill:zk=localhost:2181";
//"jdbc:drill:drillbit=localhost";
static final String USER = "admin";
static final String PASS = "admin";
public static void main(String[] args) throws ClassNotFoundException, SQLException {
/* Class.forName("org.apache.drill.jdbc.Driver");
Connection connection =DriverManager.getConnection("jdbc:drill:drillbit=127.0.0.1:8765");
Statement st = connection.createStatement();
ResultSet rs = st.executeQuery("SELECT * from cp.`employee`");
while(rs.next()){
System.out.println(rs.getString(1));
}
}*/
Connection conn = null;
Statement stmt = null;
try{
Class.forName(JDBC_DRIVER);
conn = DriverManager.getConnection(DB_URL,USER,PASS);
stmt = conn.createStatement();
// Perform a select on data in the classpath storage plugin.
String sql = "select employee_id,first_name,last_name from cp.`employee.json`";
ResultSet rs = stmt.executeQuery(sql);
while(rs.next()) {
int id = rs.getInt("employee_id");
String first = rs.getString("first_name");
String last = rs.getString("last_name");
System.out.print("ID: " + id);
System.out.print(", First: " + first);
System.out.println(", Last: " + last);
}
rs.close();
stmt.close();
conn.close();
} catch(SQLException se) {
//Handle errors for JDBC
se.printStackTrace();
} catch(Exception e) {
//Handle errors for Class.forName
e.printStackTrace();
} finally {
try{
if(stmt!=null)
stmt.close();
} catch(SQLException se2) {
}
try {
if(conn!=null)
conn.close();
} catch(SQLException se) {
se.printStackTrace();
}
}
}
}
Error Logs:-
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
java.sql.SQLException: Failure in connecting to Drill: oadd.org.apache.drill.exec.rpc.RpcException: HANDSHAKE_COMMUNICATION : Channel closed /127.0.0.1:60181 <--> localhost/127.0.0.1:8765.
at org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnectionImpl.java:162)
at org.apache.drill.jdbc.impl.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:64)
at org.apache.drill.jdbc.impl.DrillFactory.newConnection(DrillFactory.java:69)
at oadd.net.hydromatic.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:126)
at org.apache.drill.jdbc.Driver.connect(Driver.java:72)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.mapr.drill.DrillJDBCExample.main(DrillJDBCExample.java:29)
Caused by: oadd.org.apache.drill.exec.rpc.RpcException: HANDSHAKE_COMMUNICATION : Channel closed /127.0.0.1:60181 <--> localhost/127.0.0.1:8765.
at oadd.org.apache.drill.exec.client.DrillClient$FutureHandler.connectionFailed(DrillClient.java:675)
at oadd.org.apache.drill.exec.rpc.user.QueryResultHandler$ChannelClosedHandler.connectionFailed(QueryResultHandler.java:389)
at oadd.org.apache.drill.exec.rpc.BasicClient$ConnectionMultiListener$HandshakeSendHandler.failed(BasicClient.java:254)
at oadd.org.apache.drill.exec.rpc.RequestIdMap$RpcListener.setException(RequestIdMap.java:134)
at oadd.org.apache.drill.exec.rpc.RequestIdMap$SetExceptionProcedure.apply(RequestIdMap.java:74)
at oadd.org.apache.drill.exec.rpc.RequestIdMap$SetExceptionProcedure.apply(RequestIdMap.java:64)
at oadd.com.carrotsearch.hppc.IntObjectHashMap.forEach(IntObjectHashMap.java:692)
at oadd.org.apache.drill.exec.rpc.RequestIdMap.channelClosed(RequestIdMap.java:58)
at oadd.org.apache.drill.exec.rpc.RemoteConnection.channelClosed(RemoteConnection.java:175)
at oadd.org.apache.drill.exec.rpc.RpcBus$ChannelClosedHandler.operationComplete(RpcBus.java:167)
at oadd.org.apache.drill.exec.rpc.RpcBus$ChannelClosedHandler.operationComplete(RpcBus.java:146)
at oadd.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
at oadd.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:567)
at oadd.io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:406)
at oadd.io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)
at oadd.io.netty.channel.AbstractChannel$CloseFuture.setClosed(AbstractChannel.java:943)
at oadd.io.netty.channel.AbstractChannel$AbstractUnsafe.doClose0(AbstractChannel.java:592)
at oadd.io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:584)
at oadd.io.netty.channel.DefaultChannelPipeline$HeadContext.close(DefaultChannelPipeline.java:1099)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeClose(AbstractChannelHandlerContext.java:615)
at oadd.io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:600)
at oadd.io.netty.channel.ChannelOutboundHandlerAdapter.close(ChannelOutboundHandlerAdapter.java:71)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeClose(AbstractChannelHandlerContext.java:615)
at oadd.io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:600)
at oadd.io.netty.channel.ChannelDuplexHandler.close(ChannelDuplexHandler.java:73)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeClose(AbstractChannelHandlerContext.java:615)
at oadd.io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:600)
at oadd.io.netty.channel.AbstractChannelHandlerContext.close(AbstractChannelHandlerContext.java:466)
at oadd.org.apache.drill.exec.rpc.RpcExceptionHandler.exceptionCaught(RpcExceptionHandler.java:39)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
at oadd.io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
at oadd.io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
at oadd.io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
at oadd.io.netty.channel.ChannelHandlerAdapter.exceptionCaught(ChannelHandlerAdapter.java:79)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:253)
at oadd.io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:275)
at oadd.io.netty.channel.AbstractChannelHandlerContext.notifyHandlerException(AbstractChannelHandlerContext.java:809)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:341)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at oadd.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at oadd.io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
at oadd.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
at oadd.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
at oadd.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)
at oadd.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
at oadd.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
at oadd.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
at oadd.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
at oadd.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
at oadd.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
at java.lang.Thread.run(Unknown Source)
Caused by: oadd.org.apache.drill.exec.rpc.ChannelClosedException: Channel closed /127.0.0.1:60181 <--> localhost/127.0.0.1:8765.
at oadd.org.apache.drill.exec.rpc.RpcBus$ChannelClosedHandler.operationComplete(RpcBus.java:166)
... 52 more
Followed documents are:-
1) https://drill.apache.org/docs/
2) https://community.hortonworks.com/articles/10551/apache-drill-unofficial-introduction.html
I'm developing a spring boot application which reads data from an ftp connection. Have been referring this article. http://docs.spring.io/spring-integration/reference/html/ftp.html I've added below dependency to pom.xml:
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-ftp</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
Here is my Spring boot application:
#SpringBootApplication
public class FtpApplication {
public static void main(String[] args) {
SpringApplication.run(FtpApplication.class, args);
}
#Bean
public SessionFactory<FTPFile> ftpSessionFactory() {
DefaultFtpSessionFactory sf = new DefaultFtpSessionFactory();
sf.setHost("localhost");
sf.setPort(14147);
sf.setUsername("root");
sf.setPassword("root");
return new CachingSessionFactory<FTPFile>(sf);
}
#Bean
public FtpInboundFileSynchronizer ftpInboundFileSynchronizer() {
FtpInboundFileSynchronizer fileSynchronizer = new FtpInboundFileSynchronizer(ftpSessionFactory());
fileSynchronizer.setDeleteRemoteFiles(false);
fileSynchronizer.setRemoteDirectory("/");
fileSynchronizer.setFilter(new FtpSimplePatternFileListFilter("*.xml"));
return fileSynchronizer;
}
#Bean
#InboundChannelAdapter(channel = "ftpChannel")
public MessageSource<File> ftpMessageSource() {
FtpInboundFileSynchronizingMessageSource source = new FtpInboundFileSynchronizingMessageSource(
ftpInboundFileSynchronizer());
source.setLocalDirectory(new File("ftp-inbound"));
source.setAutoCreateLocalDirectory(true);
source.setLocalFilter(new AcceptOnceFileListFilter<File>());
return source;
}
#Bean
#ServiceActivator(inputChannel = "ftpChannel")
public MessageHandler handler() {
return new MessageHandler() {
#Override
public void handleMessage(Message<?> message) throws MessagingException {
File file = (File) message.getPayload();
BufferedReader br;
String sCurrentLine;
try {
br = new BufferedReader(new FileReader(file.getPath()));
while ((sCurrentLine = br.readLine()) != null) {
System.out.println(sCurrentLine);
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println(message.getPayload());
}
};
}
#Bean(name = PollerMetadata.DEFAULT_POLLER)
public PollerMetadata defaultPoller() {
PollerMetadata pollerMetadata = new PollerMetadata();
pollerMetadata.setTrigger(new PeriodicTrigger(10));
return pollerMetadata;
}
}
From the windows explorer I'm adding a file. Now when the control comes to the MessageHandler function, I see the below error. But I can neatly get the file and I see the contents correctly when I read it. But I'm unable to figure out what is the error all about:
2016-09-27 08:25:07.548 ERROR 10292 --- [ask-scheduler-1] o.s.integration.handler.LoggingHandler : org.springframework.messaging.MessagingException: Problem occurred while synchronizing remote to local directory; nested exception is org.springframework.messaging.MessagingException: Failed to obtain pooled item; nested exception is java.lang.IllegalStateException: failed to create FTPClient
at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:274)
at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizingMessageSource.doReceive(AbstractInboundFileSynchronizingMessageSource.java:193)
at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizingMessageSource.doReceive(AbstractInboundFileSynchronizingMessageSource.java:59)
at org.springframework.integration.endpoint.AbstractMessageSource.receive(AbstractMessageSource.java:134)
at org.springframework.integration.endpoint.SourcePollingChannelAdapter.receiveMessage(SourcePollingChannelAdapter.java:209)
at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:245)
at org.springframework.integration.endpoint.AbstractPollingEndpoint.access$000(AbstractPollingEndpoint.java:58)
at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:190)
at org.springframework.integration.endpoint.AbstractPollingEndpoint$1.call(AbstractPollingEndpoint.java:186)
at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller$1.run(AbstractPollingEndpoint.java:353)
at org.springframework.integration.util.ErrorHandlingTaskExecutor$1.run(ErrorHandlingTaskExecutor.java:55)
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
at org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:51)
at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.run(AbstractPollingEndpoint.java:344)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.messaging.MessagingException: Failed to obtain pooled item; nested exception is java.lang.IllegalStateException: failed to create FTPClient
at org.springframework.integration.util.SimplePool.getItem(SimplePool.java:178)
at org.springframework.integration.file.remote.session.CachingSessionFactory.getSession(CachingSessionFactory.java:123)
at org.springframework.integration.file.remote.RemoteFileTemplate.execute(RemoteFileTemplate.java:433)
at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:232)
... 22 more
Caused by: java.lang.IllegalStateException: failed to create FTPClient
at org.springframework.integration.ftp.session.AbstractFtpSessionFactory.getSession(AbstractFtpSessionFactory.java:169)
at org.springframework.integration.ftp.session.AbstractFtpSessionFactory.getSession(AbstractFtpSessionFactory.java:41)
at org.springframework.integration.file.remote.session.CachingSessionFactory$1.createForPool(CachingSessionFactory.java:81)
at org.springframework.integration.file.remote.session.CachingSessionFactory$1.createForPool(CachingSessionFactory.java:78)
at org.springframework.integration.util.SimplePool.doGetItem(SimplePool.java:188)
at org.springframework.integration.util.SimplePool.getItem(SimplePool.java:169)
... 25 more
Caused by: org.apache.commons.net.MalformedServerReplyException: Could not parse response code.
Server Reply: FZS ..... some speacial characters here.....
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:336)
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:292)
at org.apache.commons.net.ftp.FTP._connectAction_(FTP.java:418)
at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:966)
at org.apache.commons.net.ftp.FTPClient._connectAction_(FTPClient.java:954)
at org.apache.commons.net.SocketClient.connect(SocketClient.java:189)
at org.apache.commons.net.SocketClient.connect(SocketClient.java:209)
at org.springframework.integration.ftp.session.AbstractFtpSessionFactory.createClient(AbstractFtpSessionFactory.java:191)
at org.springframework.integration.ftp.session.AbstractFtpSessionFactory.getSession(AbstractFtpSessionFactory.java:166)
... 30 more
I'm new to spring integration, please help. Let me know the concepts that I should still consider preparing.
You are most probably connecting to the FileZilla FTP server administrative port (14147).
That port uses a proprietary protocol used by a "FileZilla Server Interface", not FTP, and you are not supposed to connect to it with your application.
Connect to the FTP port instead. By default that is 21. It is configured in "FileZilla Server Interface" on "General Settings" page of the "FileZilla Server Options" as "Listen to these ports".
I'm developing an app that processes files in ODS format.The code snippet is as follows:
public static void main(String[] args) throws IOException {
// Set the platform L&F.
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
e.printStackTrace();
}
display();
//print();
}
private static void display() throws IOException {
// Load the spreadsheet.
final OpenDocument doc = new OpenDocument();
doc.loadFrom("temperature3.ods");
String styleName = "Calibri";
StyleHeader header = new StyleHeader();
header.setStyleDisplay("Testing");
StyleMasterPage page = new StyleMasterPage();
page.setStyleHeader(header);
page.setStyleName(styleName);
OfficeMasterStyles off = new OfficeMasterStyles();
off.addMasterPage(off.getMasterPageFromStyleName(styleName));
doc.setMasterStyles(off);
// Show time !
final JFrame mainFrame = new JFrame("Viewer");
DefaultDocumentPrinter printer = new DefaultDocumentPrinter();
ODSViewerPanel viewerPanel = new ODSViewerPanel(doc, true);
mainFrame.setContentPane(viewerPanel);
mainFrame.pack();
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setLocation(10, 10);
mainFrame.setVisible(true);
}
I intend loading the file into a jcomponent for easy manipulation but I'm having this error message in the netbeans console:
Exception in thread "main" java.lang.IllegalArgumentException: Unable to find StyleMasterPage named:Calibri
at org.jopendocument.model.office.OfficeMasterStyles.getMasterPageFromStyleName(Unknown Source)
at starzsmarine1.PrintSpreadSheet.display(PrintSpreadSheet.java:60)
at starzsmarine1.PrintSpreadSheet.main(PrintSpreadSheet.java:45)
Is there an alternative API for this purpose?
I have requirement in which i need to connect to datasource each individual target.
If datsource has two target then i need to connect to both target one by one.
I am using below code for datasource connection.
Need to know how to connect to individual target of datasource
public class ConnectWLSDataSource {
public static void main(String[] args) {
Connection conn;
Statement stmt;
ResultSet rs;
String str1;
try {
Properties prop = new Properties();
prop.put(Context.INITIAL_CONTEXT_FACTORY, “weblogic.jndi.WLInitialContextFactory”);
prop.put(Context.PROVIDER_URL, “t3://HOST_NAME:PORT_NUMBER”);
Context ctx = new InitialContext(prop);
Object obj = ctx.lookup(“DATA_SOURCE_NAME”); // java:comp/env/CPDS
System.out.println(“Data Source Found….”);
DataSource ds = (DataSource) obj;
conn = ds.getConnection();
System.out.println(“Data Source User Name::”+conn.getMetaData().getUserName());
stmt = conn.createStatement();
String query = “select 1 from dual”;
System.out.println(“Query ” + query);
rs = stmt.executeQuery(query);
if (rs != null) {
System.out.println(“Some Data Found in Query”);
} else {
System.out.println(“No Data Found in Query”);
}
ctx.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
All you need to do is change the PROVIDER_URL to the specific host you want. For instance we have 4 servers running in a cluster and can choose to use a load balancer if we want to round-robin the connections or we can pick one specific server in the cluster.
we face issue when using this code, and get below exception. in all if 100 requests are serviced one fails with the below exception.
javax.naming.CommunicationException [Root exception is java.net.ConnectException: t3://prod.abc.com:7114: Destination unreachable; nested exception is:
java.net.SocketTimeoutException: Read timed out; No available router to destination].