D-Net

package eu.dnetlib.data.collector;

import java.util.ArrayList;

import java.util.List;

import java.util.Map;

import java.util.Set;

import java.util.stream.Collectors;

import com.google.common.collect.Sets;

import eu.dnetlib.enabling.resultset.factory.ResultSetFactory;

import eu.dnetlib.enabling.tools.AbstractBaseService;

import eu.dnetlib.rmi.common.ResultSet;

import eu.dnetlib.rmi.data.*;

import eu.dnetlib.rmi.data.plugin.CollectorPlugin;

import org.springframework.beans.factory.annotation.Autowired;

public class CollectorServiceImpl extends AbstractBaseService implements CollectorService {

	@Autowired

	private CollectorPluginEnumerator collectorPluginEnumerator;

	@Autowired

	private ResultSetFactory resultSetFactory;

	@Override

	public ResultSet<String> collect(final InterfaceDescriptor ifDescriptor) throws CollectorServiceException {

		return dateRangeCollect(ifDescriptor, null, null);

	}

	@Override

	public ResultSet<String> dateRangeCollect(

			final InterfaceDescriptor ifDescriptor, final String from, final String until)

			throws CollectorServiceException {

		final CollectorPlugin plugin = collectorPluginEnumerator.get(ifDescriptor.getProtocol());

		if (!verifyParams(ifDescriptor.getParams().keySet(), Sets.newHashSet(plugin.listNameParameters()))) {

			throw new CollectorServiceException(

					"Invalid parameters, valid: " + plugin.listNameParameters() + ", current: " + ifDescriptor.getParams().keySet());

		}

		final Iterable<String> iter = plugin.collect(ifDescriptor, from, until);

		return resultSetFactory.createResultSet(iter);

	}

	@Override

	public List<ProtocolDescriptor> listProtocols() {

		return collectorPluginEnumerator.getAll().stream().map(CollectorPlugin::getProtocolDescriptor).collect(Collectors.toList());

	}

	@Override

	public List<ProtocolParameterValue> listValidValuesForParam(final String protocol,

			final String baseUrl,

			final String param,

			final Map<String, String> otherParams) throws CollectorServiceException {

		final CollectorPlugin plugin = collectorPluginEnumerator.get(protocol);

		for (ProtocolParameter pp : plugin.getProtocolDescriptor().getParams()) {

			if (pp.getName().equals(param) && pp.isFunctionPopulated()) { return pp.getPopulateFunction().findValues(baseUrl, otherParams); }

		}

		return new ArrayList<>();

	}

	private boolean verifyParams(final Set<String> curr, final Set<String> valid) {

		return valid.containsAll(curr);

	}

}