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luwak | A java library for stored queries | Search Engine library

 by   flaxsearch Java Version: Current License: Non-SPDX

 by   flaxsearch Java Version: Current License: Non-SPDX

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kandi X-RAY | luwak Summary

luwak is a Java library typically used in Database, Search Engine applications. luwak has no bugs, it has no vulnerabilities, it has build file available and it has low support. However luwak has a Non-SPDX License. You can download it from GitHub, Maven.
A java library for stored queries
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Support
Quality
Quality
Security
Security
License
License
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kandi-support Support

  • luwak has a low active ecosystem.
  • It has 363 star(s) with 86 fork(s). There are 52 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 14 open issues and 69 have been closed. On average issues are closed in 33 days. There are 9 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of luwak is current.
luwak Support
Best in #Search Engine
Average in #Search Engine
luwak Support
Best in #Search Engine
Average in #Search Engine

quality kandi Quality

  • luwak has 0 bugs and 0 code smells.
luwak Quality
Best in #Search Engine
Average in #Search Engine
luwak Quality
Best in #Search Engine
Average in #Search Engine

securitySecurity

  • luwak has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • luwak code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
luwak Security
Best in #Search Engine
Average in #Search Engine
luwak Security
Best in #Search Engine
Average in #Search Engine

license License

  • luwak has a Non-SPDX License.
  • Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.
luwak License
Best in #Search Engine
Average in #Search Engine
luwak License
Best in #Search Engine
Average in #Search Engine

buildReuse

  • luwak releases are not available. You will need to build from source code and install.
  • Deployable package is available in Maven.
  • Build file is available. You can build the component from source.
  • Installation instructions are not available. Examples and code snippets are available.
luwak Reuse
Best in #Search Engine
Average in #Search Engine
luwak Reuse
Best in #Search Engine
Average in #Search Engine
Top functions reviewed by kandi - BETA

kandi has reviewed luwak and discovered the below as its top functions. This is intended to give you an instant insight into luwak implemented functionality, and help decide if they suit your requirements.

  • Increment the next token .
    • Decodes a BooleanQuery
      • This method is used to purge the cache .
        • Prepare the query cache .
          • Builds the query .
            • Finds all highlights for the given query .
              • Loads the documents .
                • Builds the filter clause .
                  • Partitions a batch of documents into batches .
                    • Drains the given number of elements from the given queue into the given buffer .

                      Get all kandi verified functions for this library.

                      Get all kandi verified functions for this library.

                      luwak Key Features

                      A java library for stored queries

                      default

                      copy iconCopydownload iconDownload
                      Based on the open source Lucene search library, Luwak is a high performance stored query engine. Simply put, it allows you to define a set of search queries and then monitor a stream of documents for any that might match these queries: a function also known as 'reverse search' and 'document routing'. Flax developed Luwak for clients who monitor high volumes of news using often extremely complex Boolean expressions. Luwak is being used by companies including Infomedia, Bloomberg http://www.flax.co.uk/blog/2016/03/08/helping-bloomberg-build-real-time-news-search-engine/ and Booz Allen Hamilton.
                      
                      You can find out a bit more about how Flax use Luwak for media monitoring applications in
                      this video from Lucene Revolution 2013 http://www.youtube.com/watch?v=rmRCsrJp2A8 and this video
                      from Berlin Buzzwords 2014 http://berlinbuzzwords.de/session/turning-search-upside-down-search-queries-documents and how we combined it with Apache Samza (including a great illustration of how Luwak internals work) http://www.flax.co.uk/blog/2015/08/26/real-time-full-text-search-with-luwak-and-samza/
                      
                      Here's some tests we did to compare Luwak to Elasticsearch Percolator:
                      http://www.flax.co.uk/blog/2015/07/27/a-performance-comparison-of-streamed-search-implementations/
                      
                      Scott Stults of Open Source Connections wrote "How to use Luwak to run preset queries against incoming documents":
                      http://opensourceconnections.com/blog/2016/02/05/luwak and Ryan Walker wrote a complete streaming search implementation with Luwak http://insightdataengineering.com/blog/streaming-search/
                      
                      Get the artifacts
                      -----------------
                      
                      ```
                      <dependency>
                        <groupId>com.github.flaxsearch</groupId>
                        <artifactId>luwak</artifactId>
                        <version>1.4.0</version>
                      </dependency>
                      ```
                      
                      Using the monitor
                      -----------------
                      
                      Basic usage looks like this:
                      
                      ```java
                      Monitor monitor = new Monitor(new LuceneQueryParser("field"), new TermFilteredPresearcher());
                      
                      MonitorQuery mq = new MonitorQuery("query1", "field:text");
                      List<QueryError> errors = monitor.update(mq);
                      
                      // match one document at a time
                      InputDocument doc = InputDocument.builder("doc1")
                                              .addField(textfield, document, new StandardAnalyzer())
                                              .build();
                      Matches<QueryMatch> matches = monitor.match(doc, SimpleMatcher.FACTORY);
                      
                      // or match a batch of documents
                      Matches<QueryMatch> matches = monitor.match(DocumentBatch.of(listOfDocuments), SimpleMatcher.FACTORY);
                      ```
                      
                      Adding queries

                      Is there a migration document from Luwak to the new Lucene version?

                      copy iconCopydownload iconDownload
                      Analyzer analyzer = new StandardAnalyzer();
                      QueryParser parser = new QueryParser("content", analyzer);
                      
                      Monitor monitor = new Monitor(analyzer);
                      
                      MonitorQuery mq = new MonitorQuery("query1", parser.parse("content:test"));
                      monitor.register(mq);
                          
                      
                      Document doc = new Document();
                      doc.add(new TextField("content", "This is a test document", Field.Store.YES));
                      
                      MatchingQueries<QueryMatch> matches = monitor.match(doc, QueryMatch.SIMPLE_MATCHER);
                      

                      Community Discussions

                      Trending Discussions on luwak
                      • Failed to collect dependencies at org.bouncycastle:bc-fips:jar:1.0.2.3
                      • Is there a migration document from Luwak to the new Lucene version?
                      Trending Discussions on luwak

                      QUESTION

                      Failed to collect dependencies at org.bouncycastle:bc-fips:jar:1.0.2.3

                      Asked 2022-Mar-01 at 03:17

                      I got an error when I try to build my project using Jenkins

                      >     [ERROR] Failed to execute goal on project luwak-task-storage: Could not resolve dependencies for project
                      > com.trendmicro.luwak:luwak-task-storage:jar:3.0.0-SNAPSHOT: Failed to
                      > collect dependencies at org.bouncycastle:bc-fips:jar:1.0.2.3: Failed
                      > to read artifact descriptor for org.bouncycastle:bc-fips:jar:1.0.2.3:
                      > Could not transfer artifact org.bouncycastle:bc-fips:pom:1.0.2.3
                      > from/to central
                      > (https://nexus.trendmicro.com/nexus/repository/maven-central/):
                      > sun.security.validator.ValidatorException: PKIX path building failed:
                      > sun.security.provider.certpath.SunCertPathBuilderException: unable to
                      > find valid certification path to requested target -> [Help 1]
                      

                      I got a dependency called org.bouncycastle:bc-fips:pom:1.0.2.3, it is the library that cannot be resolved, but I don't know why. I can build my project successfully on local, but when using Jenkins, I got this error. I have read some threads but none of them resolve my issue. Please help.

                      ANSWER

                      Answered 2022-Mar-01 at 03:17

                      I got a dependency called org.bouncycastle:bc-fips:pom:1.0.2.3, it is the library that cannot be resolved, but I don't know why?

                      Because your server don't have that dependency/library yet and failed prior to get those required artifacts due to the following reason:

                      Your system (Jenkins server) is unable to validate the server identity from where it is trying pulling the artifacts and hence unable to establish a proper channel for communication.

                      If you recognized & trust target server then you can add the CA certs on Jenkins server (most probably in java keystore utilize by Jenkins) to validate the handshake process.

                      https://stackoverflow.com/a/63491078/9926179

                      Source https://stackoverflow.com/questions/71303272

                      Community Discussions, Code Snippets contain sources that include Stack Exchange Network

                      Vulnerabilities

                      No vulnerabilities reported

                      Install luwak

                      You can download it from GitHub, Maven.
                      You can use luwak like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the luwak component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

                      Support

                      For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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