D-Net

package eu.dnetlib.data.collector;

import java.util.List;

import java.util.Set;

import javax.annotation.Resource;

import javax.xml.ws.wsaddressing.W3CEndpointReference;

import com.google.common.collect.Lists;

import com.google.common.collect.Sets;

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

import eu.dnetlib.data.collector.rmi.CollectorService;

import eu.dnetlib.data.collector.rmi.CollectorServiceException;

import eu.dnetlib.data.collector.rmi.InterfaceDescriptor;

import eu.dnetlib.data.collector.rmi.ProtocolDescriptor;

import eu.dnetlib.enabling.resultset.IterableResultSetFactory;

import eu.dnetlib.enabling.tools.AbstractBaseService;

public class CollectorServiceImpl extends AbstractBaseService implements CollectorService {

	@Resource

	private CollectorPluginEnumerator collectorPluginEnumerator;

	@Resource

	private IterableResultSetFactory iterableResultSetFactory;

	@Override

	public W3CEndpointReference collect(final InterfaceDescriptor ifDescriptor) throws CollectorServiceException {

		return dateRangeCollect(ifDescriptor, null, null);

	}

	@Override

	public W3CEndpointReference dateRangeCollect(

			InterfaceDescriptor ifDescriptor, String from, 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 iterableResultSetFactory.createIterableResultSet(iter);

	}

	@Override

	public List<ProtocolDescriptor> listProtocols() {

		final List<ProtocolDescriptor> list = Lists.newArrayList();

		for (CollectorPlugin plugin : collectorPluginEnumerator.getAll())  {

			list.add(new ProtocolDescriptor(plugin.getProtocol(), plugin.listNameParameters()));

		}

		return list;

	}

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

		return valid.containsAll(curr);

	}

}