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package eu.dnetlib.repo.manager.server.services;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import eu.dnetlib.domain.data.Repository;
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import eu.dnetlib.gwt.server.service.SpringGwtRemoteServiceServlet;
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import eu.dnetlib.repo.manager.client.services.BrokerService;
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import eu.dnetlib.repo.manager.service.controllers.BrokerApi;
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import eu.dnetlib.repo.manager.service.controllers.RepositoryApi;
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import eu.dnetlib.repo.manager.shared.BrokerException;
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import eu.dnetlib.repo.manager.shared.RepositoryServiceException;
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import eu.dnetlib.repo.manager.shared.Tuple;
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import eu.dnetlib.repo.manager.shared.broker.*;
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import eu.dnetlib.repos.RepoApi;
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import org.apache.log4j.Logger;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.core.ParameterizedTypeReference;
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import org.springframework.http.HttpEntity;
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import org.springframework.http.HttpMethod;
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import org.springframework.http.ResponseEntity;
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import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
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import org.springframework.stereotype.Service;
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import org.springframework.util.LinkedMultiValueMap;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.client.RestClientException;
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import org.springframework.web.client.RestTemplate;
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import org.springframework.web.util.UriComponentsBuilder;
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import javax.servlet.ServletConfig;
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import javax.servlet.ServletException;
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import java.io.IOException;
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import java.util.*;
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/**
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* Created by stefanos on 10/26/16.
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*/
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@SuppressWarnings("serial")
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@Service("brokerService")
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public class BrokerServiceImpl extends SpringGwtRemoteServiceServlet implements BrokerService {
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private static final Logger LOGGER = Logger
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.getLogger(BrokerServiceImpl.class);
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@Autowired
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private RepoApi repoAPI;
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@Autowired
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private RepositoryApi repositoryApi;
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@Autowired
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private BrokerApi brokerApi;
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@Override
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public void init(ServletConfig config) throws ServletException {
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super.init(config);
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LOGGER.info("broker service init");
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}
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@Value("${services.broker.url}:${services.broker.port}/${services.broker.api}${services.broker.openaire}")
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private String openairePath;
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@Value("${services.broker.url}:${services.broker.port}/${services.broker.api}")
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private String apiPath;
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/**
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* @param datasourceName the name of the data source
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* @return a list of BrowseEvent entries for that datasource
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* @throws BrokerException containing the error code from the server
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* @author stefanos
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*/
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@Override
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public List<BrowseEntry> getTopicsForDatasource(String datasourceName) throws BrokerException {
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return brokerApi.getTopicsForDatasource(datasourceName);
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}
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/**
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* @param datasourceName the name of the datasource
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* @param topic the name of the topic to filter
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* @param page the page number
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* @return an Events page with a constant 50 max number of entires
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* @throws BrokerException containing the error code from the server
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*/
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@Override
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public EventsPage showEvents(String datasourceName, String topic, long page) throws BrokerException{
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JSONObject params = new JSONObject();
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try {
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params.put("datasourceName",datasourceName);
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params.put("topic",topic);
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params.put("page",String.valueOf(page));
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return brokerApi.showEvents(params.toString());
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} catch (JSONException e) {
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LOGGER.debug("Error on show events",e);
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}
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return null;
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}
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/**
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* @param advQueryObject a pojo class containing the filter parameters
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* @param page the number of the page
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* @param pageSize the page size
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* @return
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* @throws BrokerException
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*/
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@Override
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public EventsPage advancedShowEvents(AdvQueryObject advQueryObject, long page, long pageSize) throws BrokerException {
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JSONObject jsonObject = new JSONObject();
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try {
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jsonObject.put("page",String.valueOf(page));
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jsonObject.put("pagesize",String.valueOf(pageSize));
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ObjectMapper mapper = new ObjectMapper();
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String json_advQueryObject = mapper.writeValueAsString(advQueryObject);
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jsonObject.put("advQueryObject",json_advQueryObject);
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return brokerApi.advancedShowEvents(jsonObject.toString());
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} catch (Exception e) {
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LOGGER.debug("Error on advanced show events",e);
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}
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return null;
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}
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@Override
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public DatasourcesBroker getDatasourcesOfUser(String userEmail, boolean includeShared, boolean includeByOthers)
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throws BrokerException {
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JSONObject params = new JSONObject();
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try {
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params.put("userEmail",userEmail);
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params.put("includeShared",includeShared);
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params.put("includeByOthers",includeByOthers);
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return brokerApi.getDatasourcesOfUser(params.toString());
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} catch (JSONException e) {
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LOGGER.debug("Error on get datasources of user",e);
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}
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return null;
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/* DatasourcesBroker ret = new DatasourcesBroker();
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try {
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LOGGER.debug("In getDatasourcesOfUser");
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//set for user
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ret.setDatasourcesOfUser(getDatasourcesOfUserType(this.repoAPI.getRepositoriesOfUser(userEmail, false)));
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//set for shared
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if (includeShared) {
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//TODO whatever nikonas was saying
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List<String> sharedDatasourceIds = new ArrayList<String>();
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ret.setSharedDatasources(getDatasourcesOfUserType(this.repoAPI.getReposByIds(sharedDatasourceIds)));
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}
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//set others
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if (includeByOthers) {
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ret.setDatasourcesOfOthers(getDatasourcesOfUserType(this.repoAPI.getRepositoriesOfUser(userEmail, true)));
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}
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} catch (RepositoryServiceException e) {
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e.printStackTrace();
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throw new BrokerException(e);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return ret;*/
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}
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@Override
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public Map<String, List<SimpleSubscriptionDesc>> getSubscriptionsOfUser(String userEmail) throws BrokerException {
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return brokerApi.getSubscriptionsOfUser(userEmail);
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}
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@Override
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public Subscription subscribe(OpenaireSubscription obj) throws BrokerException {
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return brokerApi.subscribe(obj);
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}
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@Override
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public void unsubscribe(String subscriptionId) throws BrokerException {
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brokerApi.unsubscribe(subscriptionId);
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}
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@Override
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public Subscription getSubscription(String subscriptionId) throws BrokerException {
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return brokerApi.getSubscription(subscriptionId);
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}
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@Override
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public void unsubscribe(List<String> subscriptionIds) throws BrokerException {
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for (String subscriptionId : subscriptionIds) {
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unsubscribe(subscriptionId);
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}
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}
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/**
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* Helper class to aggregate the datasources topic sizes by datasource name.
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*
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* @param repositories to be aggregated
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* @return a List of BrowseEntry with the official name and the number of topics for each repo and logo url
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* @throws BrokerException
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*/
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private List<Tuple<BrowseEntry, String>> getDatasourcesOfUserType(List<Repository> repositories) throws BrokerException {
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//get user entries
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LOGGER.debug("getDatasourcesOfUserType : " + repositories.size());
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List<Tuple<BrowseEntry, String>> entries = new ArrayList<>();
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for (Repository repo : repositories) {
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BrowseEntry temp = new BrowseEntry();
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temp.setValue(repo.getOfficialName());
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temp.setSize(new Long(0));
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for (BrowseEntry e : this.getTopicsForDatasource(repo.getOfficialName())) {
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temp.setSize(temp.getSize() + e.getSize());
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}
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Tuple<BrowseEntry, String> tup = new Tuple<>(temp, repo.getLogoUrl());
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entries.add(tup);
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}
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// sort the collection by the second field of the tuple which is size
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Collections.sort(entries, new Comparator<Tuple<BrowseEntry, String>>() {
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@Override
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public int compare(Tuple<BrowseEntry, String> e1, Tuple<BrowseEntry, String> e2) {
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return (int) (e2.getFirst().getSize().longValue() - e1.getFirst().getSize().longValue());
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}
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});
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return entries;
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}
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}
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