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package eu.dnetlib.data.mapreduce.hbase.index.config;
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import java.util.*;
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import com.google.common.base.Predicate;
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import com.google.common.base.Predicates;
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import com.google.common.collect.Lists;
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import com.google.common.collect.Sets;
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import eu.dnetlib.data.mapreduce.util.RelDescriptor;
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import eu.dnetlib.data.proto.TypeProtos;
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import eu.dnetlib.data.proto.TypeProtos.Type;
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import org.apache.commons.collections.CollectionUtils;
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public class EntityConfigTable extends HashMap<TypeProtos.Type, EntityConfig> {
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private static final long serialVersionUID = 6087987206844928698L;
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public Collection<LinkDescriptor> getDescriptors(final Type source) {
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final EntityConfig entityConfig = super.get(source);
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if (entityConfig == null) return Lists.newArrayList();
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return Lists.newArrayList(entityConfig.getLinks().values());
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}
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public LinkDescriptor getDescriptor(final Type type, final RelDescriptor relDescriptor) {
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return super.get(type).getLinks().get(relDescriptor);
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}
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public Set<String> getFilter(final Type type, final RelDescriptor relDescriptor) {
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final LinkDescriptor ld = getDescriptor(type, relDescriptor);
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return ld != null ? Sets.newHashSet(ld.getFields()) : new HashSet<>();
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}
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public boolean includeDuplicates(final Type type) {
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return super.get(type).getIndexDuplicates();
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}
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public boolean hasIncludeFields(final Type type){
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final EntityConfig config = super.get(type);
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if (config == null) {
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throw new IllegalArgumentException("the configuration table does not contain type: " + type.toString());
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}
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return CollectionUtils.isNotEmpty(config.getIncludeFields());
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}
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public boolean hasExcludeFields(final Type type){
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return CollectionUtils.isNotEmpty(super.get(type).getExcludeFields());
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}
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public List<String> getIncludeFields(final Type type){
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return super.get(type).getIncludeFields();
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}
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public List<String> getExcludeFields(final Type type){
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return super.get(type).getExcludeFields();
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}
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public Predicate<String> getIncludeFilter(final Type type, final RelDescriptor relDescriptor){
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final Set<String> filter = getFilter(type, relDescriptor);
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return fieldName -> filter.contains(fieldName);
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}
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public Predicate<String> getFilter(final Type type){
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if(hasIncludeFields(type)){
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return getIncludeFilter(type);
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}
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if(hasExcludeFields(type)){
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return getExcludeFilter(type);
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}
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return Predicates.alwaysTrue();
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}
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private Predicate<String> getIncludeFilter(final Type type) {
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return fieldName -> {
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if(getIncludeFields(type) == null || getIncludeFields(type).isEmpty()) return false;
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return getIncludeFields(type).contains(fieldName);
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};
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}
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private Predicate<String> getExcludeFilter(final Type type) {
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return fieldName -> {
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if(getExcludeFields(type) == null || getExcludeFields(type).isEmpty()) return true;
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return !getExcludeFields(type).contains(fieldName);
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};
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}
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}
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