public class EnvironmentUtils {

    private static Properties envVars;

    /**
     * Adds the environment variables in the form of properties whose keys are prefixed with {@code env.}, e.g. {@code
     * env.PATH}. Unlike native environment variables, properties are always case-sensitive. For the sake of
     * determinism, the environment variable names will be normalized to upper case on platforms with case-insensitive
     * variable lookup.
     *

import org.opensearch.common.settings.Settings;
import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

public class KuromojiNumberFilterFactory extends AbstractTokenFilterFactory {

    public KuromojiNumberFilterFactory(IndexSettings indexSettings, Environment environment, String name, Settings settings) {
        super(indexSettings, name, settings);

import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

public class KuromojiReadingFormFilterFactory extends AbstractTokenFilterFactory {

    private final boolean useRomaji;

    public KuromojiReadingFormFilterFactory(IndexSettings indexSettings, Environment environment, String name, Settings settings) {

  throw new GradleException("You must set the VAULT_ADDR environment variable to use this init script.")
}

if (System.getenv('VAULT_ROLE_ID') == null && System.getenv('VAULT_SECRET_ID') == null && System.getenv('VAULT_TOKEN') == null) {
  throw new GradleException("You must set either the VAULT_ROLE_ID and VAULT_SECRET_ID environment variables, " +
    "or the VAULT_TOKEN environment variable to use this init script.")
}

    private final boolean digit;

    private final boolean letter;

    public CharTypeFilterFactory(final IndexSettings indexSettings, final Environment environment, final String name,
            final Settings settings) {
        super(indexSettings, name, settings);

        alphabetic = settings.getAsBoolean("alphabetic", true);
        digit = settings.getAsBoolean("digit", true);
        letter = settings.getAsBoolean("letter", true);

import org.opensearch.env.Environment;
import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractCharFilterFactory;

public class ProlongedSoundMarkCharFilterFactory extends AbstractCharFilterFactory {
    private char replacement;

    public ProlongedSoundMarkCharFilterFactory(final IndexSettings indexSettings, final Environment env, final String name,
            final Settings settings) {

    validations:
      required: false
  - type: textarea
    id: environment
    attributes:
      label: Your Environment (optional)
      description: |
        Include as many relevant details about the environment you experienced the bug in
    validations:

    private Pattern pattern2;

    public PatternConcatenationFilterFactory(final IndexSettings indexSettings, final Environment environment, final String name,
            final Settings settings) {
        super(indexSettings, name, settings);

        final String pattern1Str = settings.get("pattern1");
        final String pattern2Str = settings.get("pattern2", ".*");

        if (logger.isDebugEnabled()) {

        }
    }

    /**
     * Get the environment map.
     * @return The environment map.
     */
    protected Map<String, String> getEnvMap() {
        if (envMap != null) {
            return envMap;
        }
        return System.getenv();
    }

    /**
     * Set the environment map.
     * @param envMap The environment map.
     */

				if err != nil {
					return tls.Certificate{}, fmt.Errorf("Unable to load KES client certificate as specified by the shell environment: %v", err)
				}
				keyBytes, err := os.ReadFile(keyFile)
				if err != nil {
					return tls.Certificate{}, fmt.Errorf("Unable to load KES client private key as specified by the shell environment: %v", err)
				}
				privateKeyPEM, rest := pem.Decode(bytes.TrimSpace(keyBytes))
				if len(rest) != 0 {