* either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.interval;

/**
 * The {@code IntervalController} interface defines methods for controlling
 * the delay intervals in a web crawler. It includes constants representing
 * different types of processing states and a method to introduce a delay

                    if (crawlerContext.intervalController != null) {
                        crawlerContext.intervalController.delay(IntervalController.NO_URL_IN_QUEUE);
                    }

                    threadCheckCount++;
                }

                // interval
                if (crawlerContext.intervalController != null) {

        final TestIntervalController controller = new TestIntervalController();

        controller.delay(IntervalController.PRE_PROCESSING);
        controller.delay(IntervalController.POST_PROCESSING);
        controller.delay(IntervalController.NO_URL_IN_QUEUE);
        controller.delay(IntervalController.WAIT_NEW_URL);

        assertEquals(1, controller.beforeProcessingCount);

     * Returns the interval controller.
     * @return The IntervalController.
     */
    public IntervalController getIntervalController() {
        return intervalController;
    }

    /**
     * Sets the interval controller.
     * @param intervalController The IntervalController.
     */
    public void setIntervalController(final IntervalController intervalController) {
        this.intervalController = intervalController;

import org.apache.logging.log4j.Logger;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.codelibs.fess.crawler.interval.IntervalController;

/**
 * An abstract base class for implementing {@link IntervalController}.
 * Provides a common structure for handling delays at different stages of the crawling process.
 * It encapsulates the delay logic and exception handling, allowing subclasses to focus on

     * @return The IntervalController instance.
     */
    public IntervalController getIntervalController() {
        return intervalController;
    }

    /**
     * Sets the interval controller.
     * @param intervalController The IntervalController instance to set.
     */
    public void setIntervalController(final IntervalController intervalController) {

<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="intervalController"
		class="org.codelibs.fess.crawler.interval.impl.DefaultIntervalController"
		instance="prototype">
	</component>

    }

    /**
     * Test run with interval controller.
     */
    public void test_run_withIntervalController() throws Exception {
        final IntervalController intervalController = mock(IntervalController.class);
        crawlerContext.intervalController = intervalController;

        when(urlQueueService.poll(anyString())).thenReturn(null);
        crawlerContext.setStatus(CrawlerStatus.RUNNING);

        @Override
        public boolean hasRule(Rule rule) {
            return false;
        }
    }

    /**
     * Test implementation of IntervalController for testing
     */
    private static class TestIntervalController implements IntervalController {
        @Override
        public void delay(int type) {
        }

        public void delayBeforeProcessing() {
        }

<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<include path="crawler/container.xml" />

	<component name="intervalController"
		class="org.codelibs.fess.crawler.interval.FessIntervalController"
		instance="prototype">
	</component>