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Solr Insertion Using java

import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.HttpSolrServer;
import org.apache.solr.common.SolrInputDocument;
import java.io.IOException;
public class FeedIntoSolr{
public static void main(String[] args) throws IOException, SolrServerException {
HttpSolrServer server = new HttpSolrServer("http://localhost:8983/solr");
for(int i=0;i<1000;++i) {
SolrInputDocument doc = new SolrInputDocument();
doc.addField("cat", "book");
doc.addField("id", "book-" + i);
doc.addField("name", "The Legend of the Hobbit part " + i);
server.add(doc);
if(i%100==0)
server.commit(); // periodically flush
}
server.commit();
}
}
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/http/client/methods/HttpRequestBase
at FeedIntoSolr.main(FeedIntoSolr.java:9)
Caused by: java.lang.ClassNotFoundException: org.apache.http.client.methods.HttpRequestBase
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 1 more

You are missing httpclient's jar in your classpath.
Ensure you have this jar in your classpath and you should get rid of this error.

You need to add http client implementation
You can update your pom.xml with maven
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.1</version>
</dependency>
Or download it at https://hc.apache.org/downloads.cgi and add it to the classpath in Eclipse with Project > Properties > Build Path

Thanks to all for responding..I got the answer of question asked by me.
1)first of all you need to add the jar files which is already available in solr folder(you will see when you unzipped it)
2)Jar Files in the folder solr-5.2.1->dist( add only solr-solrj-5.2.1.jar in classpath) and solr->dist->solrj-lib(add all jar in classpath)
3)you have to add two another file commons-logging-1.2.jar and slf4j-simple-1.7.12.jar
This is working for me..

Error using sphinx4 jars without Maven

I have a problem with the API Sphinx4 and I can't figure out why it doesn't work.
I try to write a little class for capture the voice of an user and write his speaking on a file.
1) I have create a new java project on Eclispe.
2) I have create the class TranscriberDemo.
3) I have create a folder "file".
4) I have copy the folder "en-us" and the files "cmudict-en-us.dict", "en-us.lm.dmp", "10001-90210-01803.wav" on the folder "file".
5) I don't use maven, so I have just include the jar files "sphinx4-core-1.0-SNAPSHOT.jar" and "sphinx4-data-1.0-SNAPSHOT.jar".
you can download them here:
core: https://1fichier.com/?f3y6vqupdr
data: https://1fichier.com/?lpzz8jyerv
I know that the source code is available
here: https://github.com/erka/sphinx-java-api
or here: http://sourceforge.net/projects/cmusphinx/files/sphinx4
But I don't use maven so I can't compile them.
My class:
import java.io.InputStream;
import edu.cmu.sphinx.api.Configuration;
import edu.cmu.sphinx.api.SpeechResult;
import edu.cmu.sphinx.api.StreamSpeechRecognizer;
import edu.cmu.sphinx.result.WordResult;
public class TranscriberDemo
{
public static void main(String[] args) throws Exception
{
System.out.println("Loading models...");
Configuration configuration = new Configuration();
// Load model from the jar
configuration.setAcousticModelPath("file:en-us");
configuration.setDictionaryPath("file:cmudict-en-us.dict");
configuration.setLanguageModelPath("file:en-us.lm.dmp");
StreamSpeechRecognizer recognizer = new StreamSpeechRecognizer(configuration);
InputStream stream = TranscriberDemo.class.getResourceAsStream("file:10001-90210-01803.wav");
stream.skip(44);
// Simple recognition with generic model
recognizer.startRecognition(stream);
SpeechResult result;
while ((result = recognizer.getResult()) != null)
{
System.out.format("Hypothesis: %s\n", result.getHypothesis());
System.out.println("List of recognized words and their times:");
for (WordResult r : result.getWords())
{
System.out.println(r);
}
System.out.println("Best 3 hypothesis:");
for (String s : result.getNbest(3))
System.out.println(s);
}
recognizer.stopRecognition();
}
}
My log:
Loading models...
Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/base/Function
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:191)
at edu.cmu.sphinx.util.props.ConfigurationManager.getPropertySheet(ConfigurationManager.java:91)
at edu.cmu.sphinx.util.props.ConfigurationManagerUtils.listAllsPropNames(ConfigurationManagerUtils.java:556)
at edu.cmu.sphinx.util.props.ConfigurationManagerUtils.setProperty(ConfigurationManagerUtils.java:609)
at edu.cmu.sphinx.api.Context.setLocalProperty(Context.java:198)
at edu.cmu.sphinx.api.Context.setAcousticModel(Context.java:88)
at edu.cmu.sphinx.api.Context.<init>(Context.java:61)
at edu.cmu.sphinx.api.Context.<init>(Context.java:44)
at edu.cmu.sphinx.api.AbstractSpeechRecognizer.<init>(AbstractSpeechRecognizer.java:37)
at edu.cmu.sphinx.api.StreamSpeechRecognizer.<init>(StreamSpeechRecognizer.java:35)
at TranscriberDemo.main(TranscriberDemo.java:27)
Caused by: java.lang.ClassNotFoundException: com.google.common.base.Function
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 12 more
Thanks for your help =)

There are multiple issues with your code and your actions:
3) I have create a folder "file".
Not needed
4) I have copy the folder "en-us" and the files "cmudict-en-us.dict", "en-us.lm.dmp", "10001-90210-01803.wav" on the folder "file".
Not needed, you already have models as part of sphinx4-data package.
5) I don't use maven, so I have just include the jar files "sphinx4-core-1.0-SNAPSHOT.jar" and "sphinx4-data-1.0-SNAPSHOT.jar".
This is very wrong because you took outdated jars from unauthorized location. The right place to download jars is listed in tutorial http://oss.sonatype.org
https://oss.sonatype.org/service/local/repositories/snapshots/content/edu/cmu/sphinx/sphinx4-core/1.0-SNAPSHOT/sphinx4-core-1.0-20150223.210646-7.jar
https://oss.sonatype.org/service/local/repositories/snapshots/content/edu/cmu/sphinx/sphinx4-data/1.0-SNAPSHOT/sphinx4-data-1.0-20150223.210601-7.jar
You took malicious jars from some random website which might have a virus or rootkit in them.
here: https://github.com/erka/sphinx-java-api
This is a wrong link too. The correct link is http://github.com/cmusphinx/sphinx4
InputStream stream = TranscriberDemo.class.getResourceAsStream("file:10001-90210-01803.wav");
Here you use file: URL scheme which points to files in inappropriate context. If you want to create InputStream from file do like this:
InputStream stream = new FileInputStream(new File("10001-90210-01803.wav"));
Exception in thread "main" java.lang.NoClassDefFoundError: com/google/common/base/Function
This error is caused by the fact you took a jar from other place and it said you need additional dependencies. When you see ClassDefFoundError it means you need to add additional jar into your classpath. With official sphinx4 you should not see this error.

Solved.
In fact it was a silly mistake...
Thank you #Nikolay for your answer. I already accept your answer but I resume the process here:
1) Download the sphinx4-core and sphinx4-data jars from https://oss.sonatype.org/#nexus-search;quick~sphinx4.
2) Include them in your project.
3) Test your code.
import edu.cmu.sphinx.api.Configuration;
import edu.cmu.sphinx.api.LiveSpeechRecognizer;
import edu.cmu.sphinx.api.SpeechResult;
public class SpeechToText
{
public static void main(String[] args) throws Exception
{
Configuration configuration = new Configuration();
configuration.setAcousticModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us");
configuration.setDictionaryPath("resource:/edu/cmu/sphinx/models/en-us/cmudict-en-us.dict");
configuration.setLanguageModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us.lm.dmp");
LiveSpeechRecognizer recognizer = new LiveSpeechRecognizer(configuration);
recognizer.startRecognition(true);
SpeechResult result;
while ((result = recognizer.getResult()) != null)
{
System.out.println(result.getHypothesis());
}
recognizer.stopRecognition();
}
}
And that is all!
If you need the source code of Sphinx4: https://github.com/cmusphinx/sphinx4

Workaround for java.lang.UnsupportedClassVersionError to not show it

After migration to Java 8, my tool throw the follwing exception if somebody try to run it on earlier Java environments.
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/myapp/MyTool: Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Is there some way to not show this error, and show nice error message with proposition to upgrade Java.
As I understood I should create some small class like:
public class CheckerJavaVersion {
public static void main(String args[]) {
String sVersion = System.getProperty("java.version");
sVersion = sVersion.substring(0, 3);
Float f = Float.valueOf(sVersion);
if (f.floatValue() < (float) 1.8) {
System.out.println("Please upgrate your Java to 1.8 version");
System.exit(1);
}
}
}
and compile it via older compiler. I need some solution how to run this class firstly before the main method of MyToll class starts.
PS. Aplication is packed in jar.

The problem is that the error occurs when the class is loaded, so you'd either have to use a "starter app" which starts the actual application in a separate process or dynamically load the application after the Java version has been checked.
I didn't test it but what might work is something like this:
public static void main(String args[]) {
if( javaVersionOk ) {
Class.forName("actual.mainclass.name").getMethod("actual.main.method.name").invoke();
}
}
The idea is to access the class via its name and thus make the runtime load and initialize it at that time. I'm not sure, however, if you can delay class loading like that in all cases so you'd have to go on from there.
And btw, IIRC there already are applications/libraries that provide this kind of functionality, I just don't rember their names. So a search might be worth your while.
Edit: you might want to have a look at appstart if not for using it then for inspiration.
Another launcher would be Apache Commons Launcher.
Alternatives:
Alternatively you could just provide a launch script for each platform you want to support , call java -version and check the returned version before launching the application.
Another alternative would be to use JNLP/WebStart locally, which allows you to specify a minimum version and which AFAIK even provides for download/upgrade functionality.

Unable to run java with an external library

I saw this post but I wasn't clear on what the resolution was.
I'm trying to run a java program from command line utilizing an external library. Here is the total output of my session:
grifter#host:~/java$ cat ExtractTest.java
import java.io.IOException;
import org.apache.pdfbox.util.PDFTextStripper;
import org.apache.pdfbox.pdmodel.PDDocument;
import java.io.File;
public class ExtractTest {
public static void main(String[] args) throws IOException {
System.out.println("About to open PDF");
File fh = new File("/home/grifter/test.pdf");
PDDocument d = PDDocument.load(fh);
System.out.println("Here");
PDFTextStripper ts = new PDFTextStripper();
System.out.println(ts.getText(d));
}
}
grifter#host:~/java$ javac -cp .:/home/grifter/pdfbox-1.8.5/pdfbox/target/pdfbox-1.8.5.jar ExtractTest.java
grifter#host:~/java$ java -classpath .:/home/grifter/pdfbox-1.8.5/pdfbox/target/pdfbox-1.8.5.jar ExtractTest
About to open PDF
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.pdfbox.pdfparser.BaseParser.<clinit>(BaseParser.java:68)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1219)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1187)
at org.apache.pdfbox.pdmodel.PDDocument.load(PDDocument.java:1158)
at ExtractTest.main(ExtractTest.java:12)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 5 more
Could someone please point me in the right direction?
Any help is appreciated.

pdf box uses dependencies, which also needs to be added to your class path. You can read about the dependecies here

The jar commons-logging and the dependencies is missing in your classpath.
You can download it here

java.lang.NoClassDefFoundError when running with cmd

I have some problems testing a program from a java programming book. I wrote the code in eclipse and succeded running it, but when I compile the .java file via the command line and then run it with java ConsoleEcho, I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError: ConsoleEcho (wrong na
me: einausgabe/ConsoleEcho)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14
2)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
The code for my program is:
package einausgabe;
import java.io.IOException;
import static java.lang.System.*;
public class ConsoleEcho {
public static void main( String args[] ) throws IOException {
while( true ) {
int code = in.read();
out.write(code);
}
}
}
The commands I used are:
javac ConsoleEcho
java ConsoleEcho
I run this from the directory ..\Java\ProgrammierenMitJava2\src\einausgabe
I don't get any errors by compiling. Tried java einausgabe.ConsoleEcho and then I get this error message:
Error: Could not find or load main class einausgabe.ConsoleEcho

You need to include the package name in the command line, something like:
java einausgabe.ConsoleEcho
you appear to just have the class name in your command.

It seems that you forgot the package name
Use
java einausgabe.ConsoleEcho