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package eu.etaxonomy.cdm.api.service;
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import java.util.ArrayList;
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import java.util.List;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Propagation;
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import org.springframework.transaction.annotation.Transactional;
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import eu.etaxonomy.cdm.api.service.pager.Pager;
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import eu.etaxonomy.cdm.api.service.pager.impl.AbstractPagerImpl;
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import eu.etaxonomy.cdm.api.service.pager.impl.DefaultPagerImpl;
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import eu.etaxonomy.cdm.model.description.IIdentificationKey;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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import eu.etaxonomy.cdm.persistence.dao.description.IIdentificationKeyDao;
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@Service
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@Transactional(readOnly = true, propagation = Propagation.SUPPORTS)
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public class IdentificationKeyServiceImpl implements IIdentificationKeyService {
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IIdentificationKeyDao dao;
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@Autowired
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public void setDao(IIdentificationKeyDao dao) {
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this.dao = dao;
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}
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public Pager<IIdentificationKey> page(Integer pageSize, Integer pageNumber, List<String> propertyPaths) {
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Integer numberOfResults = dao.count();
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List<IIdentificationKey> results = new ArrayList<IIdentificationKey>();
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pageNumber = pageNumber == null ? 0 : pageNumber;
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if(numberOfResults > 0) { // no point checking again //TODO use AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)
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Integer start = pageSize == null ? 0 : pageSize * pageNumber;
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results = dao.list(pageSize, start, propertyPaths);
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}
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return new DefaultPagerImpl<IIdentificationKey>(pageNumber, numberOfResults, pageSize, results);
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}
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public <T extends IIdentificationKey> Pager<T> findKeysConvering(TaxonBase taxon,
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Class<T> type, Integer pageSize,
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Integer pageNumber, List<String> propertyPaths) {
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Integer numberOfResults = dao.countByTaxonomicScope(taxon, type).intValue();
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List<T> results = new ArrayList<T>();
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if(AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)){
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results = dao.findByTaxonomicScope(taxon, type, pageSize, pageNumber, propertyPaths);
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}
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return new DefaultPagerImpl<T>(pageNumber, numberOfResults, pageSize, results);
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}
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}
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