if (StringUtil.isBlank(mimeType)) {
            return defaultMaxLength;
        }
        final Long maxLength = maxLengthMap.get(mimeType);
        if (maxLength != null && maxLength >= 0L) {
            return maxLength;
        }
        return defaultMaxLength;
    }

    public long getDefaultMaxLength() {
        return defaultMaxLength;
    }

<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="contentLengthHelper"
		class="org.codelibs.fess.crawler.helper.ContentLengthHelper" instance="singleton">
		<property name="defaultMaxLength">10485760</property><!-- 10M -->
		<postConstruct name="addMaxLength">
			<arg>"text/html"</arg>
			<arg>2621440</arg><!-- 2.5M -->
		</postConstruct>
	</component>