private Ingester[] ingesters = {};

    public synchronized void add(final Ingester ingester) {
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", ingester.getClass().getSimpleName());
        }
        final Ingester[] newIngesters = Arrays.copyOf(ingesters, ingesters.length + 1);
        newIngesters[ingesters.length] = ingester;

        factory.add(new TestIngester(2));
        factory.add(new TestIngester(1));
        Ingester[] ingesters = factory.getIngesters();
        assertEquals(1, ingesters[0].getPriority());
        assertEquals(2, ingesters[1].getPriority());
        assertEquals(3, ingesters[2].getPriority());
    }

    private static class TestIngester extends Ingester {
        public TestIngester(int priority) {
            this.priority = priority;

import org.codelibs.fess.crawler.entity.ResponseData;
import org.codelibs.fess.crawler.entity.ResultData;
import org.codelibs.fess.entity.DataStoreParams;
import org.codelibs.fess.util.ComponentUtil;

public abstract class Ingester {

    protected int priority = 99;

    public int getPriority() {
        return priority;
    }

    public void setPriority(final int priority) {
        this.priority = priority;
    }

            return resultData;
        }
        ResultData target = resultData;
        for (final Ingester ingester : ingestFactory.getIngesters()) {
            try {
                target = ingester.process(target, responseData);
            } catch (final Exception e) {
                logger.warn("Failed to process Ingest[{}]", ingester.getClass().getSimpleName(), e);
            }
        }
        return target;
    }

            return map;
        }
        Map<String, Object> target = map;
        for (final Ingester ingester : ingestFactory.getIngesters()) {
            try {
                target = ingester.process(target, accessResult);
            } catch (final Exception e) {
                logger.warn("Failed to process Ingest[{}]", ingester.getClass().getSimpleName(), e);
            }
        }
        return target;
    }

            return dataMap;
        }
        Map<String, Object> target = dataMap;
        for (final Ingester ingester : ingestFactory.getIngesters()) {
            try {
                target = ingester.process(target, paramMap);
            } catch (final Exception e) {
                logger.warn("Failed to process Ingest[{}]", ingester.getClass().getSimpleName(), e);
            }
        }
        return target;
    }