I'm trying to put an InputStream into a file and getting the following stacktrace:
org.springframework.amqp.rabbit.listener.ListenerExecutionFailedException: Listener method 'handleMessage' threw exception
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.reflect.UndeclaredThrowableException
... 1 more
Caused by: java.io.EOFException: Unexpected end of ZLIB input stream
at java.util.zip.InflaterInputStream.fill(InflaterInputStream.java:240)
at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:158)
Here is the snippet that is causing it
HSLFSlideShow ppt = new HSLFSlideShow(fs)
ObjectData[] embeddes = ppt.getEmbeddedObjects()
embeddes.eachWithIndex { ObjectData entry, int i ->
File f = new File (fileToSave)
f.withOutputStream { w ->
w << entry.getData() //This causes the error
}
}
Here is the link to the ObjectData class getData() method https://poi.apache.org/apidocs/org/apache/poi/hslf/usermodel/ObjectData.html#getData()
I'm using Apache POI 3.10-FINAL
Related
I'm having a very confusing issue with Kafka - specifically trying to obtain the Key of a message.
The key seems to think it's both a String and a byte[]
The following code produces the exception below:
Map<String, Integer> topicCount = new HashMap<>();
topicCount.put(myConsumer.getTopic(), 1);
Map<String, List<KafkaStream<byte[], byte[]>>> consumerStreams = myConsumer.getConsumer().createMessageStreams(topicCount);
List<KafkaStream<byte[], byte[]>> streams = consumerStreams.get(myConsumer.getTopic());
System.out.println("Listening to topic " + myConsumer.getTopic());
for (final KafkaStream stream : streams) {
ConsumerIterator<String, byte[]> it = stream.iterator();
while (it.hasNext()) {
System.out.println("Message received from topic");
MessageAndMetadata<String, byte[]> o = it.next();
Object messageKey = o.key();
System.out.println("messageKey is type: " + messageKey.getClass().getName());
System.out.println("messageKey is type: " + messageKey.getClass().getCanonicalName());
System.out.println("o keyDecoder: " + o.keyDecoder());
System.out.println("Key from message: " + o.key()); //This throws exception - [B cannot be cast to java.lang.String
//System.out.println("Key as String: " + new String(o.key(), StandardCharsets.UTF_8)); //uncomment this compile Exception - no suitable constructor found for String(java.lang.String,java.nio.charset.Charset)
byte[] bytesIn = o.message(); //getting the bytes is fine
System.out.println("MessageAndMetadata: " + o);
///other code cut
}
}
Exception:
Listening to topic MyKafkaTopic
Message received from topic
messageKey is type: [B
messageKey is type: byte[]
o decoder: kafka.serializer.DefaultDecoder#2e0d0acd
[WARNING]
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassCastException: [B cannot be cast to java.lang.String
at com.foo.bar.KafkaCFS.process(KafkaCFS.java:153)
at com.foo.bar.KafkaCFS.run(KafkaCFS.java:63)
at com.foo.bar.App.main(App.java:90)
... 6 more
Maven:
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka_2.10</artifactId>
<version>0.9.0.1</version>
</dependency>
If I uncomment the System.out line then I cannot even compile:
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /C:/Dev/main/java/com/foo/bar/KafkaCFS.java:[152,56] no suitable constructor found for String(java.lang.String,java.nio.charset.Charset)
constructor java.lang.String.String(byte[],int) is not applicable
(argument mismatch; java.lang.String cannot be converted to byte[])
How is it that the compiler thinks the Key is a String (which is what I expected it to be) but that runtime it's a byte array?
What can I do to get the Key as a String?
Thanks,
KA.
This did not match! You are declare streams as KafkaStream<byte[], byte[]> and then you expect ConsumerIterator<String, byte[]> it = stream.iterator(); it should be ConsumerIterator<byte[], byte[]> it = stream.iterator(); to match generics. Then you can get o.key() and create a string from it via new String(o.key());
Better off setting KafkaStream generic parameter type is (byte[], byte[]). Try to change code like this:
ConsumerIterator<byte[], byte[]> it = stream.iterator();
while (it.hasNext()) {
String key = new String(it.next().key());
...
}
sdf
I am doing this assignment and I got stuck at the very first. I can't even read the given text file. Help me guys. please check the attachment and see where I am wrong
Exception in thread "main" java.io.FileNotFoundException: popData.txt (The system cannot find the file specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at dd.main(dd.java:13)
try use standard Java classes
BufferedReader br = new BufferedReader(
new InputStreamReader(new FileInputStream(fileName)));
try {
String line;
while ((line = br.readLine()) != null) {
// process line
}
} finally {
br.close();
}
I have setup single Cassandra node on VM. i have to create a table with 70000 columns. for this i have written java code that read json file and create table.
here is my java code snippet.
When i run my java code it throws exception after creation some columns.
Exception stack is
public void createTable(String keyspaceName, String tableName) throws FileNotFoundException{
JSONParser jsonParser = new JSONParser();
FileReader fileReader;
String filePath = "";
String columnHeader = "";
//String completeColumnHeader = "";
try{
System.out.println("Inside Create Table");
session.executeAsync("DROP TABLE IF EXISTS "+keyspaceName+"."+tableName+";");
String createQuery = "CREATE TABLE "+keyspaceName+"."+tableName +"(\"P:LanguageID\" text, "
+ "\"P:PdmarticleID\" text, PRIMARY KEY(\"P:PdmarticleID\",\"P:LanguageID\"));";
session.execute(createQuery);
System.out.println("Table created");
filePath = "CassandraTableColumnHeader/FixColumnHeader.json";
fileReader = new FileReader(filePath);
JSONObject jsonObject = (JSONObject) jsonParser.parse(fileReader);
JSONArray jsonArray = (JSONArray) jsonObject.get("columnHeaderName");
int columnHeaderSize = jsonArray.size();
int columnHeaderBatchSize = 1000;
int fromIndex = 0;
int toIndex = columnHeaderBatchSize;
while(columnHeaderSize > 0){
columnHeaderSize -=columnHeaderBatchSize;
for(int i = fromIndex; i < toIndex; i++) {
columnHeader = (String) jsonArray.get(i);
if(columnHeader.equals("P:PdmarticleID")||columnHeader.equals("P:LanguageID")){
continue;
}
session.execute("ALTER TABLE "+keyspaceName+"."+tableName +" ADD "+"\""+columnHeader+"\""+" text;");
}
fromIndex = toIndex;
if(columnHeaderSize < columnHeaderBatchSize){
toIndex += columnHeaderSize;
}else{
toIndex = toIndex + columnHeaderBatchSize;
}
}
}catch(FileNotFoundException fnfe){
throw fnfe;
}catch (ParseException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
Exception in thread "main" com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.1:9042 (com.datastax.driver.core.exceptions.DriverException: Host replied with server error: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.FileNotFoundException: C:\apache-cassandra-new\data\data\system\schema_columnfamilies-45f5b36024bc3f83a3631034ea4fa697\system-schema_columnfamilies-tmplink-ka-4839-Data.db (The process cannot access the file because it is being used by another process)))
at com.datastax.driver.core.exceptions.NoHostAvailableException.copy(NoHostAvailableException.java:84)
at com.datastax.driver.core.DefaultResultSetFuture.extractCauseFromExecutionException(DefaultResultSetFuture.java:265)
at com.datastax.driver.core.DefaultResultSetFuture.getUninterruptibly(DefaultResultSetFuture.java:179)
at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:52)
at com.datastax.driver.core.AbstractSession.execute(AbstractSession.java:36)
at com.exportstagging.SparkTest.DataLoaderInCassandra.createTable(DataLoaderInCassandra.java:89)
at com.exportstagging.SparkTest.DataLoaderInCassandra.main(DataLoaderInCassandra.java:216)
Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.1:9042 (com.datastax.driver.core.exceptions.DriverException: Host replied with server error: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.FileNotFoundException: C:\apache-cassandra-new\data\data\system\schema_columnfamilies-45f5b36024bc3f83a3631034ea4fa697\system-schema_columnfamilies-tmplink-ka-4839-Data.db (The process cannot access the file because it is being used by another process)))
at com.datastax.driver.core.RequestHandler.reportNoMoreHosts(RequestHandler.java:216)
at com.datastax.driver.core.RequestHandler.access$900(RequestHandler.java:45)
at com.datastax.driver.core.RequestHandler$SpeculativeExecution.sendRequest(RequestHandler.java:276)
at com.datastax.driver.core.RequestHandler$SpeculativeExecution$1.run(RequestHandler.java:374)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I have stuck here. Please help me. Thanks in advance.
If I were you I might reevaluate creating a table with 70k column headers. Your partition key P:PdmarticleID and full primary key (P:PdmarticleID, P:LanguageID) are the only two pieces of information you will be able to use to get results anyway. So having these other pieces of information explicitly stored in columns is not buying you anything.
A collection (eg. map) can hold onto 64k items, with certain other limitations (see http://wiki.apache.org/cassandra/CassandraLimitations). Is there a way you can split the columns such that you can create multiple tables, with some pieces of information stored in one table and some in another?
I have a method in Java for unmarshalling XML-files with the given URL.
For URL's like "http:// ..." everything works fine, but for URL's like "file://localhost/C:/Users/.../filename.xml" I receive following exception.
I have no idea why he won't accept my "file://localhost/"-URL's.
javax.xml.bind.UnmarshalException
- with linked exception:
[org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.]
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.createUnmarshalException(AbstractUnmarshallerImpl.java:335)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.createUnmarshalException(UnmarshallerImpl.java:563)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:249)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:214)
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:157)
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:204)
at preferee.data.access.IO_transfer.jaxb.XMLconverter.getItemFromStream(XMLconverter.java:40)
at preferee.data.access.IO_transfer.jaxb.XMLconverter.getItemFromURL(XMLconverter.java:57)
at preferee.data.access.testServer.LocalTestServer.<init>(LocalTestServer.java:42)
at preferee.data.access.testServer.TestProvider.<init>(TestProvider.java:16)
at preferee.data.access.Providers.createTestProvider(Providers.java:29)
at preferee.tests.FakeServerTests.MovieDao_TEST.run(MovieDao_TEST.java:22)
at preferee.tests.FakeServerTests.MovieDao_TEST.main(MovieDao_TEST.java:16)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)
at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1436)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:999)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:243)
By the way this is my method-implementation:
Class classObject = ... ;
public T getItemFromURL(String url) throws DataAccessException {
JAXBContext jc = null;
T item = null;
try (InputStream XML_Stream = new URL(url).openStream();)
{
jc = JAXBContext.newInstance(classObject);
item = (T) jc.createUnmarshaller().unmarshal(XML_Stream);
} catch (IOException e) {
throw new DataAccessException("( originele error: " + e.getClass() +" ) " + e.getMessage() + ": Kon Bestand niet ophalen of lezen." );
} catch (JAXBException e) {
throw new DataAccessException(e.getMessage());
}
return item;
}
Your URL for hitting your file system is not correct. It should be like:
file:///c|/path/to/file
Update
Will this "file:///" work on other systems like mac, linux?
You can use a file URL on any OS. Of course the URL needs to match the file layout there (i.e. no C drive in Linux).
And is there any way to convert c:\ ... to c|/ ... / easily?
File file = new File("C:/Users/.../filename.xml");
String url = file.toURI().toURL().toString();
i am trying to load an image to be used as a texture and i keep getting input==null errors; This is my code where i am trying to load the image and where most of the errors are pointing to.
package com.mime.minefront.graphics;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
public class Texture {
public static Render floor = loadBitmap("/C:\\Users\\Danny\\Documents\\NetBeansProjects\\MyFirstgame\\src\\res\\textures\\floor.png");
public static Render loadBitmap(String fileName) {
try {
BufferedImage image = ImageIO.read(Texture.class.getResource(fileName));
int width = image.getWidth();
int height = image.getHeight();
Render result = new Render(width, height);
image.getRGB(0, 0, width, height, result.pixels, 0, width);
return result;
} catch (Exception e) {
System.out.println("CRASH!");
throw new RuntimeException(e);
}
}
}
and the errors i am getting are as followed.
Exception in thread "Thread-2" java.lang.ExceptionInInitializerError
at com.mime.minefront.graphics.Render3D.floor(Render3D.java:42)
at com.mime.minefront.graphics.Screen.render(Screen.java:28)
at com.mime.minefront.Display.render(Display.java:144)
at com.mime.minefront.Display.run(Display.java:112)
at java.lang.Thread.run(Thread.java:724)
Caused by: java.lang.RuntimeException: java.lang.IllegalArgumentException: input == null!
at com.mime.minefront.graphics.Texture.loadBitmap(Texture.java:19)
at com.mime.minefront.graphics.Texture.<clinit>(Texture.java:8)
... 5 more
Caused by: java.lang.IllegalArgumentException: input == null!
at javax.imageio.ImageIO.read(ImageIO.java:1388)
at com.mime.minefront.graphics.Texture.loadBitmap(Texture.java:11)
... 6 more
BUILD SUCCESSFUL (total time: 4 seconds)
Please help