// Test numeric conversions
    @Test
    public void test_numericConversions() {
        // Test integer conversion
        Integer heartbeatInterval = fessConfig.getSearchEngineHeartbeatIntervalAsInteger();
        assertNotNull(heartbeatInterval);
        assertEquals(10000, heartbeatInterval.intValue());

        // Test integer conversion for cleanup days
        int cleanupDays = fessConfig.getDayForCleanup();

import org.opensearch.index.query.RangeQueryBuilder;
import org.opensearch.index.query.RegexpQueryBuilder;
import org.opensearch.index.query.SpanTermQueryBuilder;
import org.opensearch.index.query.TermQueryBuilder;
import org.opensearch.index.query.TermsQueryBuilder;
import org.opensearch.index.query.WildcardQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;

        }

        @Override
        public String getIndexExportScrollSize() {
            return scrollSize;
        }

        @Override
        public Integer getIndexExportScrollSizeAsInteger() {
            return Integer.valueOf(scrollSize);
        }

        @Override
        public String getIndexDocumentSearchIndex() {
            return "fess.search";
        }

        }
    }

    /**
     * Retrieves an integer value from system properties with a default fallback.
     *
     * @param key the property key to look up
     * @param defaultValue the default value if the property is not found or invalid
     * @return the integer value or default value
     */
    protected Integer getDefaultInteger(final String key, final Integer defaultValue) {

import org.opensearch.index.query.RangeQueryBuilder;
import org.opensearch.index.query.RegexpQueryBuilder;
import org.opensearch.index.query.SpanTermQueryBuilder;
import org.opensearch.index.query.TermQueryBuilder;
import org.opensearch.index.query.TermsQueryBuilder;
import org.opensearch.index.query.WildcardQueryBuilder;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;

    # base package of generated classes
    ; basePackage = org.codelibs.fess.opensearch

    # base path to JSON resource, URL or relative path
    ; basePath = ../src/main/config/es

    # settings for indexes
    ; indexMap = map:{
        # Index: fess_user
        ; fess_user.group = map:{
            ; package = user
            ; esclientDiFile = esclient.xml
            ; esfluteDiFile = esflute_user.xml
        }

          },
          "sortOrder" : {
            "type" : "integer"
          },
          "updatedBy" : {
            "type" : "keyword"
          },
          "updatedTime" : {
            "type" : "long"
          },
          "value" : {
            "type" : "keyword"
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1509021056731",

    "aliases" : { },
    "mappings" : {
      "failure_url" : {
        "properties" : {
          "configId" : {
            "type" : "keyword"
          },
          "errorCount" : {
            "type" : "integer"
          },
          "errorLog" : {
            "type" : "keyword"
          },
          "errorName" : {
            "type" : "keyword"
          },
          "lastAccessTime" : {

          },
          "createdBy" : {
            "type" : "keyword"
          },
          "createdTime" : {
            "type" : "long"
          },
          "maxSize" : {
            "type" : "integer"
          },
          "query" : {
            "type" : "keyword"
          },
          "term" : {
            "type" : "keyword"
          },
          "updatedBy" : {
            "type" : "keyword"

          },
          "parameters" : {
            "type" : "keyword"
          },
          "password" : {
            "type" : "keyword"
          },
          "port" : {
            "type" : "integer"
          },
          "protocolScheme" : {
            "type" : "keyword"
          },
          "updatedBy" : {
            "type" : "keyword"
          },
          "updatedTime" : {