I am getting below error in executing live query ,
Code to register :
List<ODocument> result = db.getRawGraph().query(new OLiveQuery<ODocument>("live select from TEST", listener));
liveToken = result.get(0).field("token");
i followed live query document to create the listener
ERROR :
com.orientechnologies.orient.core.command.OCommandExecutorNotFoundException: Cannot find a command executor for the command request: sql.live select from TEST
at com.orientechnologies.orient.core.sql.OCommandExecutorSQLDelegate.parse(OCommandExecutorSQLDelegate.java:72)
at com.orientechnologies.orient.core.sql.OCommandExecutorSQLDelegate.parse(OCommandExecutorSQLDelegate.java:42)
at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.command(OAbstractPaginatedStorage.java:1517)
at com.orientechnologies.orient.core.sql.query.OSQLQuery.run(OSQLQuery.java:72)
at com.orientechnologies.orient.core.sql.query.OSQLSynchQuery.run(OSQLSynchQuery.java:85)
at com.orientechnologies.orient.core.query.OQueryAbstract.execute(OQueryAbstract.java:33)
at com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.command(ONetworkProtocolBinary.java:1319)
at com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.executeRequest(ONetworkProtocolBinary.java:396)
at com.orientechnologies.orient.server.network.protocol.binary.OBinaryNetworkProtocolAbstract.execute(OBinaryNetworkProtocolAbstract.java:223)
at com.orientechnologies.common.thread.OSoftThread.run(OSoftThread.java:77)
Pom.xml - orient.version - 2.1.7
<dependency>
<groupId>com.orientechnologies</groupId>
<artifactId>orientdb-core</artifactId>
<version>${orient.version}</version>
</dependency>
<dependency>
<groupId>com.orientechnologies</groupId>
<artifactId>orientdb-client</artifactId>
<version>${orient.version}</version>
</dependency>
<dependency>
<groupId>com.orientechnologies</groupId>
<artifactId>orientdb-enterprise</artifactId>
<version>${orient.version}</version>
</dependency>
<dependency>
<groupId>com.orientechnologies</groupId>
<artifactId>orientdb-graphdb</artifactId>
<version>${orient.version}</version>
</dependency>
am i missing something ?
Related
I found out that this code doesn't injects the parameters to the SQL query.
#Query(value = "SELECT * FROM schema.table WHERE schema.table.name = ':name'", nativeQuery = true)
Optional findByName(#Param("name") String name);
In this case the database receives this:
SELECT * FROM schema.table WHERE schema.table.name = ':name'
I tried with #Param too, then this is the case:
#Query(value = "SELECT * FROM schema.table WHERE schema.table.name = '?1'", nativeQuery = true)
Optional findByName(String name);
Then the database receives this:
SELECT * FROM schema.table WHERE schema.table.name = '?1'
I tried without the single apostrophes (') as well.
Without #Query:
Optional findByName(String name);
The DB receives this:
... WHERE myclass.name = $1
What could be the problem? I saw this solution many times and it worked for them. Basis queries are working, so that's not the problem I can't access the DB or something like that.
My application.properties:
spring.datasource.url=jdbc:postgresql://localhost:5432/postgres
spring.datasource.username=
spring.datasource.password=
spring.jpa-hibernate.ddl-auto=create-drop
spring-jpa.show-sql=false
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgresPlusDialect
spring.jpa.properties.hibernate.format_sql=true
And my pom.xml:
<properties>
<maven.compiler.source>18</maven.compiler.source>
<maven.compiler.target>18</maven.compiler.target>
<spring.version>2.6.6</spring.version>
<tomcat7-maven-plugin.version>2.2</tomcat7-maven-plugin.version>
<maven-war-plugin.version>3.3.2</maven-war-plugin.version>
<javax.servlet-api.version>4.0.1</javax.servlet-api.version>
<javax.persistence-api.version>2.2</javax.persistence-api.version>
<spring-data-jpa.version>2.6.4</spring-data-jpa.version>
<postgresql.version>42.3.4</postgresql.version>
<commons-lang3.version>3.12.0</commons-lang3.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>${postgresql.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>${javax.persistence-api.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${javax.servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
I'm trying to get the name of the current cucumber scenario.
I'm using JUnit 4.10. When I add the #Before without any arguments then the method is successfully called. However if I include the argument Scenario then I get:
cucumber.runtime.CucumberException: Can't invoke
stepDefinitions.beforeScenarios(Scenario)
import cucumber.annotation.Before;
import gherkin.formatter.model.Scenario;
public class stepDefinitions {
public Scenario scenario = null;
#Before
public void beforeScenarios(Scenario scenario) {
System.out.println("Method called");
}
...
Any ideas what I'm doing wrong?
I'm updated my pom.xml with:
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>3.141.5</version>
</dependency>
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-java</artifactId>
<version>4.3.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.cucumber</groupId>
<artifactId>cucumber-junit</artifactId>
<version>4.3.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
Below are right API to be imported.
#Before - import cucumber.api.java.Before;
Scenario - import cucumber.api.Scenario;
I am working with tess4j (4.3.1 version) so that I can convert image files to text file for preparing index for Lucene.It does its work but at the end gives an warning
Warning: Parameter not found: enable_new_segsearch
Here is my pom.xml
<dependencies>
<dependency>
<groupId>org.ghost4j</groupId>
<artifactId>ghost4j</artifactId>
<version>1.0.1</version>
</dependency>
<dependency>
<groupId>net.java.dev.jna</groupId>
<artifactId>jna</artifactId>
<version>5.3.1</version>
</dependency>
<dependency>
<groupId>net.sourceforge.tess4j</groupId>
<artifactId>tess4j</artifactId>
<version>4.3.1</version>
</dependency>
<dependency>
<groupId>com.github.jai-imageio</groupId>
<artifactId>jai-imageio-core</artifactId>
<version>1.4.0</version>
</dependency>
<dependency>
<groupId>net.sourceforge.lept4j</groupId>
<artifactId>lept4j</artifactId>
<version>1.12.0</version>
</dependency>
</dependencies>
And my java main class:
File imageFile = new File("samples/eurotext.pdf");
ITesseract instance = new Tesseract();
instance.setDatapath("E:\\tessdata");
try {
String result = instance.doOCR(imageFile);
System.out.println(result);
} catch (TesseractException e) {
System.err.println(e.getMessage());
}
Using following VM arguments:
-Djna.library.path=${workspace_loc:/ocr-tess4j-example}/dlls/x64
Contents of dlls/x64 folder:
gsdll64.dll
liblept1760.dll
libtesseract400.dll
How can I get rid of the warning message?
Try:
instance.setTessVariable("debug_file", "/dev/null");
Language data was not correct.Downloaded whole tessdata from [https://github.com/tesseract-ocr/tessdata] . Error gone. Got the idea from here
https://pdfc.inetsoftware.de/public/help/tesseract4/p/optical-character-recognition
So I know that in Mongo Shell, you use dot notation to get the field you want in any document.
How is dot notation achieved in MongoDB Scala. I'm confused as to how it works. Here is the code that fetches a document from a collection:
val record = collection.find().projection(fields(include("offset"), excludeId())).limit(1)
EDIT:
I'm trying to work on a mechanism to basically re-consume Kafka records at a point where the consumer was shutdown. To do this, I store my kafka records in an external database, and then try to fetch the most recent offset from there and start consuming from that point. Here is my Scala method that should do that:
def getLatestCommitOffsetFromDB(collectionName: String): Long = {
import com.mongodb.Block
import org.bson.Document
val printBlock = new Block[Document]() {
override def apply(document: Document): Unit = {
println(document.toJson)
}
}
import com.mongodb.async.SingleResultCallback
val callbackWhenFinished = new SingleResultCallback[Void]() {
override def onResult(result: Void, t: Throwable): Unit = {
System.out.println("Latest offset fetched from database.")
}
}
var obj: String = " "
try {
val record = collection.find().projection(fields(include("offset"), excludeId())).limit(1)
//TODO FIND A WAY TO GET THE VALUE AND STORE IT IN A VARIABLE
} catch {
case e: RuntimeException =>
logger.error(s"MongoDB Server Error : Unable to fetch data from collection : $collection")
logger.error(e.printStackTrace().toString())
}
obj.toLong
}
The problem isn't that I can fetch documents from Mongo, more-so that I'm trying to access a particular field in Mongo. The Document has four fields in it: topic, partition, message, and offset. I want to get the "offset" field and store that in a variable, so I can use it as a restarting point to re-consume Kafka records.
where do I go from there?
POM.xml
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>OffsetManagementPoC</groupId>
<artifactId>OffsetManagementPoC</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-clients</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka_2.12</artifactId>
<version>1.0.0</version>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-compiler</artifactId>
<version>2.11.8</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>org.apache.kafka</groupId>
<artifactId>kafka-streams</artifactId>
<version>0.10.0.1</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-streaming-kafka-0-10 -->
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
<version>2.2.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.6.5</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.6.5</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.6.5</version>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>casbah_2.12</artifactId>
<version>3.1.1</version>
<type>pom</type>
</dependency>
<dependency>
<groupId>com.typesafe</groupId>
<artifactId>config</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>org.mongodb.scala</groupId>
<artifactId>mongo-scala-driver_2.12</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-compiler</artifactId>
<version>2.11.8</version>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.4.2</version>
</dependency>
<dependency>
<groupId>org.mongodb.scala</groupId>
<artifactId>mongo-scala-driver_2.11</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>bson</artifactId>
<version>3.3.0</version>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongodb-driver-async</artifactId>
<version>3.4.3</version>
</dependency>
<dependency>
<groupId>org.mongodb.scala</groupId>
<artifactId>mongo-scala-bson_2.11</artifactId>
<version>2.1.0</version>
</dependency>
</dependencies>
You can modify your query this way:
import com.mongodb.MongoClient
import com.mongodb.client.MongoCollection
import com.mongodb.client.model.Projections
def getLatestCommitOffsetFromDB(
databaseName: String,
collectionName: String
): Long = {
val mongoClient = new MongoClient("localhost", 27017);
val collection =
mongoClient.getDatabase(databaseName).getCollection(collectionName)
val record = collection
.find()
.projection(
Projections
.fields(Projections.include("offset"), Projections.excludeId()))
.first
record.get("offset").asInstanceOf[Double].toLong
}
I think you were missing the com.mongodb.client.model.Projections imports in order to use fields, include and excludeId
I used first instead of limit(1) to make it easier to extract the result.
first returns a Document object on which you can call get to retrieve the value of the requested field.
But in fact, since you just want one record and one field, you can remove the projection!:
val record = collection.find().first
According to the documentation, collection.find() accepts a com.mongodb.DBObject
One of the implementations of that interface that you can use is BasicDBObject which is basically like a mutable.Map[String, Object]. You can use the constructor which accepts a map like:
val query = new com.mongodb.BasicDBObject(Map(
"foo.bar" -> "value1"
"bar.foo" -> "value2"
))
val record = collection.find(query)....
When I am trying to use JJWT from Stormpath, it is throwing a run time Exception java.lang.ClassNotFoundException: io.jsonwebtoken.Jwts. I am using Jersey2 embedded on GlassFish 4.1; here is the code that is throwing the exception:
private String issueToken(String login) {
Key key = keyGenerator.generateKey();
//Key key = MacProvider.generateKey();
String jwtToken = Jwts.builder()
.setIssuer(uriInfo.getAbsolutePath().toString())
//.setIssuer("http://trustyapp.com/")
.setSubject(login)
.setIssuedAt(new Date())
.setExpiration(toDate(LocalDateTime.now().plusMinutes(15L)))
.signWith(SignatureAlgorithm.HS512, key)
.compact();
logger.info("#### generating token for a key : " + jwtToken + " - " + key);
return jwtToken;
}
I have imported io.jsonwebtoken.Jwts and my pom.xml has :
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.8.2</version>
<scope>compile</scope>
</dependency>
i also tried it without the above dependency in case the below dependency which is on my pom.xml is enough:
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.7.0</version>
<scope>compile</scope>
</dependency>
I tried the recommendations from this and this but it did not work, please help
The problem is solved after adding the following dependencies into my pom.xml:
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
<version>${version.jersey}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-jdk-http</artifactId>
<version>${version.jersey}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>${version.jersey}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>${version.jersey}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>${version.jersey}</version>
</dependency>
I assumed that such dependencies are not required since i am using Jersey 2 which is embedded on the GlassFish4.1.1 Server.