### Start Solr Server Command

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/server/README.txt

Command to start the Solr server. Requires setting the SOLR_INSTALL environment variable to the Solr installation directory.

```bash
cd $SOLR_INSTALL
bin/solr start
```

--------------------------------

### Start Solr Server

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/example/films/README.txt

Starts the Solr server. This is a prerequisite for all other Solr operations.

```bash
bin/solr start
```

--------------------------------

### Start Solr with Custom Velocity Templates

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/example/files/README.txt

This command starts the Solr server with a specified system property that allows in-place editing of Velocity templates. It requires the absolute path to the conf/velocity directory. This method avoids the need to re-create or patch Solr collections for configuration changes.

```bash
bin/solr start -Dvelocity.template.base.dir=</full/path/to>/example/files/conf/velocity/
```

--------------------------------

### Solr Cloud Deployment

Source: https://context7.com/eliassih/searchengineetd/llms.txt

Instructions for starting Apache Solr in cloud mode using the provided Solr 8.11.2 distribution.

```APIDOC
## Solr Cloud Deployment

### Description
This command starts an Apache Solr instance in cloud mode, which is essential for distributed search capabilities and fault tolerance. It assumes Solr 8.11.2 is downloaded and extracted.

### Method
Bash Command

### Endpoint
N/A

#### Parameters
- **-c** : Enables SolrCloud mode.
- **-p 8983** : Specifies the port for Solr to run on.

### Command
```bash
cd solr-8.11.2
bin/solr start -c -p 8983
```

### Usage
Run this command from the root directory of your Solr installation.

### Response
#### Success Response
Solr server starts in cloud mode, accessible at `http://localhost:8983`.

#### Error Handling
Ensure Solr is properly installed and Java is configured. Check Solr logs for detailed errors.
```

--------------------------------

### Solr Cloud Deployment Command

Source: https://context7.com/eliassih/searchengineetd/llms.txt

Shell command to start Apache Solr version 8.11.2 in SolrCloud mode. This command navigates to the Solr directory and initiates the Solr server with cloud mode enabled, using ZooKeeper for coordination. It specifies the port to be 8983.

```bash
# Start Solr in cloud mode
cd solr-8.11.2
bin/solr start -c -p 8983

```

--------------------------------

### Configure Jaeger Tracer in solr.xml

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/contrib/jaegertracer-configurator/README.txt

This XML snippet demonstrates how to set up the Jaeger tracer within the solr.xml file. It includes essential parameters like agent host and port, logging preferences, and buffer sizes for span data. Ensure the solr-jaegertracer library is in the classpath.

```xml
<tracerConfig name="tracerConfig" class="org.apache.solr.jaeger.JaegerTracerConfigurator">
  <str name="agentHost">localhost</str>
  <int name="agentPort">5775</int>
  <bool name="logSpans">true</bool>
  <int name="flushInterval">1000</int>
  <int name="maxQueueSize">10000</int>
</tracerConfig>
```

--------------------------------

### Disable Field Guessing in Solr

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/server/README.txt

Example using curl to disable automatic field creation for a specific Solr collection. This is useful when you want to manage your schema explicitly.

```bash
curl http://host:8983/solr/mycollection/config -d '{"set-user-property": {"update.autoCreateFields":"false"}}'
```

--------------------------------

### S3OutputStream Initialization and Writing (Java)

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/NOTICE.txt

Demonstrates how to initialize an S3OutputStream and write data to an S3 bucket. This typically involves specifying the bucket name, object key, and providing the data to be written. Error handling for potential S3 exceptions should be considered.

```java
import io.confluent.connect.s3.storage.S3OutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class S3WriteExample {
    public static void main(String[] args) {
        String bucketName = "your-s3-bucket";
        String objectKey = "path/to/your/file.txt";
        byte[] dataToWrite = "This is the content to write to S3.".getBytes();

        try (OutputStream os = new S3OutputStream(bucketName, objectKey)) {
            os.write(dataToWrite);
            System.out.println("Successfully wrote data to s3://" + bucketName + "/" + objectKey);
        } catch (IOException e) {
            System.err.println("Error writing to S3: " + e.getMessage());
            e.printStackTrace();
        }
    }
}
```

--------------------------------

### Schema Management Examples

Source: https://github.com/eliassih/searchengineetd/blob/main/Queries.txt

Provides examples of adding various common fields to Solr schemas for different collections.

```APIDOC
## POST /solr/{collection}/schema

### Description
Examples of adding common fields to Solr schemas.

### Method
POST

### Endpoint
http://localhost:8983/solr/ETDSearch/schema

### Request Examples

1. **Add 'dc:title' field:**
```json
{
  "add-field": {
    "name": "dc:title",
    "type": "text_general",
    "stored": true,
    "indexed": true
  }
}
```

2. **Add 'dc:description' field:**
```json
{
  "add-field": {
    "name": "dc:description",
    "type": "text_general",
    "stored": true,
    "indexed": true
  }
}
```

3. **Add 'dc:subject' field (multi-valued):**
```json
{
  "add-field": {
    "name": "dc:subject",
    "type": "text_general",
    "stored": true,
    "multiValued": true,
    "indexed": true
  }
}
```

4. **Add 'dc:language' field:**
```json
{
  "add-field": {
    "name": "dc:language",
    "type": "text_general",
    "stored": true
  }
}
```

5. **Add 'dc:date' field (date type with docValues):**
```json
{
  "add-field": {
    "name": "dc:date",
    "type": "pdate",
    "stored": true,
    "docValues": true
  }
}
```

6. **Add 'validLink' field to 'testCollection' (text_general with docValues):**
```json
{
  "add-field": {
    "name": "validLink",
    "type": "text_general",
    "stored": true,
    "docValues": true
  }
}
```

### Response
#### Success Response (200)
- **responseHeader** (object) - Contains information about the request.
- **success** (boolean) - Indicates if the operation was successful.

#### Response Example
```json
{
  "responseHeader": {
    "status": 0,
    "QTime": 5
  },
  "success": true
}
```
```

--------------------------------

### Import Data from hsqldb Database

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/example/example-DIH/README.txt

This endpoint demonstrates how to initiate a full data import from the hsqldb database into the 'db' Solr core.

```APIDOC
## Import Data from hsqldb Database

### Description

This endpoint demonstrates how to initiate a full data import from the hsqldb database into the 'db' Solr core.

### Method

GET

### Endpoint

`/solr/db/dataimport`

### Query Parameters

- **command** (string) - Required - Set to `full-import` to start the data import.

### Request Example

```
http://localhost:8983/solr/db/dataimport?command=full-import
```

### Response

#### Success Response (200)

- **status** (integer) - The status of the import operation.
- **importResponse** (object) - Details about the import process.

#### Response Example

```json
{
  "status": 0,
  "importResponse": {
    "status": "done"
  }
}
```
```

--------------------------------

### Data Import Handler (DIH) - General Usage

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/example/example-DIH/README.txt

The DataImportHandler (DIH) is used to import data into Solr. The following examples show how to trigger a full import for different data sources.

```APIDOC
## Data Import Handler (DIH) - General Usage

### Description

The DataImportHandler (DIH) is used to import data into Solr. The following examples show how to trigger a full import for different data sources.

### Method

GET

### Endpoint

`/solr/<collection_name>/dataimport`

### Query Parameters

- **command** (string) - Required - The command to execute. Use `full-import` for a full data import.

### Request Example

```
http://localhost:8983/solr/<collection_name>/dataimport?command=full-import
```

### Response

#### Success Response (200)

- **status** (integer) - The status of the import operation.
- **importResponse** (object) - Details about the import process.

#### Response Example

```json
{
  "status": 0,
  "importResponse": {
    "status": "done"
  }
}
```
```

--------------------------------

### Browse Interface

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/example/films/README.txt

Provides a web-based interface for browsing indexed movie data.

```APIDOC
## GET /solr/films/browse

### Description
Accesses the Solr browse interface for the 'films' core, allowing interactive exploration of the indexed movie data.

### Method
GET

### Endpoint
http://localhost:8983/solr/films/browse

### Parameters
#### Query Parameters
- **facet.field** (string) - Optional - Specifies a field to use for faceting in the browse interface. Example: `genre`.

### Request Example

**Basic Browse:**
```
http://localhost:8983/solr/films/browse
```

**Browse with Genre Facet:**
```
http://localhost:8983/solr/films/browse?facet.field=genre
```

### Response
#### Success Response (200)
- **HTML Page** - A web page displaying the indexed movie data and available facets.

#### Response Example
(This endpoint returns an HTML page, not JSON. The content will vary based on your Solr configuration and data.)
```

--------------------------------

### Display ChatGPT Query Summary (Jinja2)

Source: https://github.com/eliassih/searchengineetd/blob/main/searchFrontEnd/templates/results.html

This Jinja2 template displays a summary generated by ChatGPT. It's a simple variable substitution for presenting AI-generated content.

```Jinja2
A query summary by ChatGPT

* * *

{{resultGPT}}
```

--------------------------------

### Python URL Validation and Ranking Script

Source: https://context7.com/eliassih/searchengineetd/llms.txt

A Python script that iterates through XML files in a specified directory, validates document URLs using HTTP GET requests, and adds a 'ranking' field to documents with accessible URLs. It utilizes the requests and lxml libraries for network requests and XML parsing, respectively. Errors during URL checking are printed to the console.

```python
import os
import requests
from lxml import etree

def send_get_request(url):
    """Check if a URL is accessible."""
    try:
        response = requests.get(url, timeout=10)
        return response.status_code == 200
    except Exception as e:
        print(f'Error checking {url}: {str(e)}')
        return False

def validate_and_rank(directory):
    """Process XML files and add ranking based on URL validity."""
    for filename in os.listdir(directory):
        file_path = os.path.join(directory, filename)
        if not os.path.isfile(file_path):
            continue

        parser = etree.XMLParser(remove_blank_text=True)
        tree = etree.parse(file_path, parser)
        root = tree.getroot()

        for doc in root.iter('doc'):
            for field in doc.iter('field'):
                if field.attrib.get('name') == 'identifier':
                    url = field.text
                    if send_get_request(url):
                        # Add high ranking for accessible documents
                        ranking = etree.SubElement(doc, 'field')
                        ranking.attrib['name'] = 'ranking'
                        ranking.text = '5'

        # Save updated XML
        with open(file_path, 'wb') as f:
            tree.write(f, pretty_print=True, xml_declaration=True, encoding='utf-8')

# Usage
validate_and_rank('ReformattedData/')

```

--------------------------------

### Create Solr Collection for ETDSearch

Source: https://context7.com/eliassih/searchengineetd/llms.txt

This command creates a new Solr collection named 'ETDSearch' with 2 shards and 2 replicas. Ensure Solr is running before executing this command.

```bash
bin/solr create -c ETDSearch -s 2 -rf 2
```

--------------------------------

### Index Full Text Document with Tika Integration

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/example/example-DIH/README.txt

This endpoint demonstrates indexing a full-text document using Tika integration within the 'tika' Solr core.

```APIDOC
## Index Full Text Document with Tika Integration

### Description

This endpoint demonstrates indexing a full-text document using Tika integration within the 'tika' Solr core.

### Method

GET

### Endpoint

`/solr/tika/dataimport`

### Query Parameters

- **command** (string) - Required - Set to `full-import` to start the data import.

### Request Example

```
http://localhost:8983/solr/tika/dataimport?command=full-import
```

### Response

#### Success Response (200)

- **status** (integer) - The status of the import operation.
- **importResponse** (object) - Details about the import process.

#### Response Example

```json
{
  "status": 0,
  "importResponse": {
    "status": "done"
  }
}
```
```

--------------------------------

### Display Event Log Data with Timezone Handling

Source: https://github.com/eliassih/searchengineetd/blob/main/solr-8.11.2/server/solr-webapp/webapp/partials/logging.html

This snippet demonstrates how to display event log data, dynamically showing either UTC or local time based on user preference. It includes placeholders for event level, core, logger, message, and trace information. No external dependencies are explicitly mentioned, and the output is a formatted log entry.

```html
{{watcher}}
-----------

Time ({{timezone}})

Level

Core

Logger

Message

{{ timezone == "UTC" ? event.utc_time : event.local_time }}

{{ event.level }} {{event.showTrace}}

{{ event.core }}

{{event.loggerBase}}

{{ event.message }}

{{event.trace}}

No Events available

Last Check: {{sinceDisplay}}

Show dates in UTC

Auto-Refresh
```