public long getDefaultMaxLength() {
        return defaultMaxLength;
    }

    /**
     * Sets the default maximum content length.
     * @param defaultMaxLength The default maximum content length to set.
     */
    public void setDefaultMaxLength(final long defaultMaxLength) {
        if (defaultMaxLength < 0) {
            throw new CrawlerSystemException("The value of defaultMaxLength is invalid.");
        }

<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>