/**
     * During normal command line build, ClassWorld is loaded by jvm system classloader, which only includes
     * plexus-classworlds jar and possibly javaagent classes, see https://issues.apache.org/jira/browse/MNG-4747.
     * <p>
     * Using ClassWorld to determine plugin/extensions realm parent classloaders gives m2e and integration test harness

## 다른 검색 제공자에서의 마이그레이션

[MIGRATION.md](MIGRATION.md)를 참조하십시오.

## 데이터 저장소

현재 Fess는 다음 [저장소 위치 및 API](https://fess.codelibs.org/15.3/admin/dataconfig-guide.html)를 크롤링할 수 있습니다:

 - [Confluence/Jira](https://github.com/codelibs/fess-ds-atlassian)
 - [Box](https://github.com/codelibs/fess-ds-box)
 - [CSV](https://github.com/codelibs/fess-ds-csv)
 - [Database](https://github.com/codelibs/fess-ds-db)

## Technology Stack

- **Java**: 21+ (requires Java 21 or higher)
- **Build System**: Maven 3.x
- **DI Container**: LastaFlute DI
- **HTTP Client**: Apache HttpComponents
- **Content Extraction**: Apache Tika, Apache POI, PDFBox
- **Testing**: JUnit 4, UTFlute, Testcontainers
- **Storage Backends**: OpenSearch, Memory-based

## Quick Start

### Prerequisites

- Java 21 or higher
- Maven 3.6 or higher

## 他の検索プロバイダーからの移行

[MIGRATION.md](MIGRATION.md)を参照してください。

## データストア

現在、Fessは以下の[ストレージロケーションとAPI](https://fess.codelibs.org/15.3/admin/dataconfig-guide.html)のクロールをサポートしています：

 - [Confluence/Jira](https://github.com/codelibs/fess-ds-atlassian)
 - [Box](https://github.com/codelibs/fess-ds-box)
 - [CSV](https://github.com/codelibs/fess-ds-csv)
 - [Database](https://github.com/codelibs/fess-ds-db)

        } else {
            cmdList.add("-Dfess.log.level=" + logLevel);
            if ("debug".equalsIgnoreCase(logLevel)) {
                cmdList.add("-Dorg.apache.tika.service.error.warn=true");
            }
        }
        stream(fessConfig.getJvmCrawlerOptionsAsArray())
                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(value -> cmdList.add(value)));

The python program below waits on the queue exchange `bucketevents` and prints event notifications on the console. We use [Pika Python Client](https://www.rabbitmq.com/tutorials/tutorial-three-python.html) library to do this.

```py
#!/usr/bin/env python
import pika

connection = pika.BlockingConnection(pika.ConnectionParameters(
        host='localhost'))
channel = connection.channel()

                </excludes>
                <compilerArgs>
                  <!--
                      Make includes/excludes fully work:
                      https://issues.apache.org/jira/browse/MCOMPILER-174
                      (Compare what guava-gwt has to do for maven-javadoc-plugin.)
                  -->
                  <arg>-sourcepath</arg>
                  <arg>doesnotexist</arg>

                </excludes>
                <compilerArgs>
                  <!--
                      Make includes/excludes fully work:
                      https://issues.apache.org/jira/browse/MCOMPILER-174
                      (Compare what guava-gwt has to do for maven-javadoc-plugin.)
                  -->
                  <arg>-sourcepath</arg>
                  <arg>doesnotexist</arg>

        final String content = extractData.getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
    }

    // TODO tika needs to support pdfbox 2.0
    //    public void test_getTika_pdf() {
    //        final InputStream in = ResourceUtil
    //                .getResourceAsStream("extractor/test.pdf");

            context.slf4jConfiguration.setRootLoggerLevel(context.loggerLevel);
        } else {
            // fall back to default log level specified in conf
            // see https://issues.apache.org/jira/browse/MNG-2570 and https://github.com/apache/maven/issues/11199
            context.loggerLevel = Slf4jConfiguration.Level.INFO; // default for display purposes
        }
    }