protected String content;

    /**
     * Constructs a new ExtractData.
     */
    public ExtractData() {
        // Default constructor
    }

    /**
     * Constructs a new ExtractData with the specified content.
     *
     * @param content the content to set
     */
    public ExtractData(final String content) {
        this.content = content;
    }

    /**

```java
public class CustomExtractor extends AbstractExtractor {
    @Override
    public ExtractData getText(final InputStream inputStream, final Map<String, String> params) {
        // Custom extraction logic
        ExtractData extractData = new ExtractData();
        // ... implementation
        return extractData;
    }
}

// Register custom extractor