forked from D-Net/dnet-hadoop
69 lines
1.8 KiB
Java
69 lines
1.8 KiB
Java
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package eu.dnetlib.dhp.broker.oa.matchers;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.apache.commons.codec.digest.DigestUtils;
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import org.apache.commons.lang3.StringUtils;
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import eu.dnetlib.dhp.broker.oa.util.UpdateInfo;
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import eu.dnetlib.dhp.schema.oaf.Field;
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public abstract class UpdateMatcher<K, T> {
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private final boolean multipleUpdate;
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public UpdateMatcher(final boolean multipleUpdate) {
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this.multipleUpdate = multipleUpdate;
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}
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public Collection<UpdateInfo<T>> searchUpdatesForRecord(final K res, final Collection<K> others) {
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final Map<String, UpdateInfo<T>> infoMap = new HashMap<>();
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for (final K source : others) {
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if (source != res) {
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for (final UpdateInfo<T> info : findUpdates(source, res)) {
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final String s = DigestUtils.md5Hex(info.getHighlightValueAsString());
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if (!infoMap.containsKey(s) || infoMap.get(s).getTrust() < info.getTrust()) {
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} else {
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infoMap.put(s, info);
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}
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}
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}
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}
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final Collection<UpdateInfo<T>> values = infoMap.values();
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if (values.isEmpty() || multipleUpdate) {
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return values;
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} else {
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final UpdateInfo<T> v = values
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.stream()
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.sorted((o1, o2) -> Float.compare(o1.getTrust(), o2.getTrust()))
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.findFirst()
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.get();
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return Arrays.asList(v);
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}
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}
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protected abstract List<UpdateInfo<T>> findUpdates(K source, K target);
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protected abstract UpdateInfo<T> generateUpdateInfo(final T highlightValue,
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final K source,
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final K target);
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protected static boolean isMissing(final List<Field<String>> list) {
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return list == null || list.isEmpty() || StringUtils.isBlank(list.get(0).getValue());
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}
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protected boolean isMissing(final Field<String> field) {
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return field == null || StringUtils.isBlank(field.getValue());
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}
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}
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