393 lines
14 KiB
Java
393 lines
14 KiB
Java
package eu.dnetlib.repo.manager.service;
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import com.fasterxml.jackson.databind.JsonNode;
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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.repo.manager.shared.BrokerException;
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import eu.dnetlib.repo.manager.shared.Term;
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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 org.json.JSONException;
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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.*;
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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.UriComponents;
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import org.springframework.web.util.UriComponentsBuilder;
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import javax.annotation.PostConstruct;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.*;
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@Service("brokerService")
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public class BrokerServiceImpl implements BrokerService {
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@Autowired
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private RepositoryServiceImpl repoAPI;
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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}/${services.broker.api}")
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private String apiPath;
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@Value("${topic_types.url}")
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private String topicsURL;
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private static final org.apache.log4j.Logger LOGGER = org.apache.log4j.Logger
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.getLogger(BrokerServiceImpl.class);
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@Autowired
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RestTemplate restTemplate ;
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private HttpHeaders httpHeaders;
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private HashMap<String,Term> topics = new HashMap<String, Term>();
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@Autowired
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private EmailUtils emailUtils;
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@PostConstruct
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private void initDnetTopicsMap() {
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httpHeaders = new HttpHeaders();
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httpHeaders.set("Content-Type", "application/json");
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LOGGER.debug("Init dnet topics!");
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InputStream is = null;
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try {
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is = new URL(topicsURL).openStream();
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ObjectMapper mapper = new ObjectMapper();
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JsonNode root = mapper.readTree(is);
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for (JsonNode term : root.path("terms") )
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topics.put(term.path("code").textValue(), parseTerm(term));
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} catch (IOException e) {
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LOGGER.debug("Exception on initDnetTopicsMap" , e);
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emailUtils.reportException(e);
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}
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}
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private Term parseTerm(JsonNode term) {
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return new Term(term.path("englishName").textValue(),term.path("nativeName").textValue(),
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term.path("encoding").textValue(),term.path("code").textValue());
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}
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@Override
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public DatasourcesBroker getDatasourcesOfUser(String user,String includeShared,String includeByOthers) throws JSONException {
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DatasourcesBroker ret = new DatasourcesBroker();
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try {
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ret.setDatasourcesOfUser(getDatasourcesOfUserType(getRepositoriesOfUser(user)));
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//TODO fix bug when values are true
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if (Boolean.parseBoolean(includeShared)) {
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List<String> sharedDatasourceIds = new ArrayList<String>();
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ret.setSharedDatasources(getDatasourcesOfUserType(getRepositoriesByIds(sharedDatasourceIds)));
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}
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if (Boolean.parseBoolean(includeByOthers)) {
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ret.setDatasourcesOfOthers(getDatasourcesOfUserType(getRepositoriesOfUser(user)));
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}
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} catch (BrokerException e) {
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LOGGER.debug("Exception on getDatasourcesOfUser" , e);
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emailUtils.reportException(e);
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}
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return ret;
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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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final String service = "/topicsForDatasource";
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(openairePath + service)
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.queryParam("ds", datasourceName);
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ResponseEntity<List<BrowseEntry>> resp;
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try {
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resp = restTemplate.exchange(
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builder.build().encode().toUri(),
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HttpMethod.GET,
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null,
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new ParameterizedTypeReference<List<BrowseEntry>>() {
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});
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} catch (RestClientException e) {
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LOGGER.debug("Exception on getTopicsForDatasource" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return resp.getBody();
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}
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@Override
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public EventsPage advancedShowEvents(String page,
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String size,
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AdvQueryObject advQueryObject) throws BrokerException, JSONException ,IOException {
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final String service = "/events/{page}/{pageSize}";
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Map<String, Long> uriParams = new HashMap<>();
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uriParams.put("page", Long.parseLong(page));
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uriParams.put("pageSize", Long.parseLong(size));
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(openairePath + service);
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MultiValueMap<String, String> headers = new LinkedMultiValueMap<>();
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advQueryObject.setPage(Long.parseLong(page));
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HttpEntity<AdvQueryObject> entity = new HttpEntity<>(advQueryObject, httpHeaders);
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ResponseEntity<EventsPage> resp;
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try {
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resp = restTemplate.exchange(
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builder.buildAndExpand(uriParams).encode().toUri(),
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HttpMethod.POST,
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entity,
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new ParameterizedTypeReference<EventsPage>() {
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}
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);
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} catch (RestClientException e) {
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LOGGER.debug("Exception on advancedShowEvents" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return resp.getBody();
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}
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private List<Tuple<BrowseEntry, String>> getDatasourcesOfUserType(List<Repository> repositories) throws BrokerException {
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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 : 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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private List<Repository> getRepositoriesOfUser(String userEmail) throws JSONException {
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int page = 0;
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int size = 50;
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List<Repository> rs ;
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List<Repository> resultSet = new ArrayList<>();
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while (true){
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rs = repoAPI.getRepositoriesOfUser(userEmail, String.valueOf(page), String.valueOf(size));
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resultSet.addAll(rs);
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page+=1;
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if(rs.size() == 0) break;
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}
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return resultSet;
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}
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private List<Repository> getRepositoriesByIds(List<String> sharedDatasourceIds) {
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return null;
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}
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@Override
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public EventsPage showEvents(String datasourceName,
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String topic,
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String page,
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String size) throws BrokerException, JSONException {
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final String service = "/events";
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(openairePath + service)
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.queryParam("ds", datasourceName)
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.queryParam("topic", topic)
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.path("/{page}/{size}/");
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ResponseEntity<EventsPage> resp;
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try {
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resp = restTemplate.exchange(
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builder.build().expand(page, size).encode().toUri(),
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HttpMethod.GET,
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null,
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new ParameterizedTypeReference<EventsPage>() {
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});
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} catch (RestClientException e) {
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LOGGER.debug("Exception on showEvents" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return resp.getBody();
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}
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@Override
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public Map<String, List<SimpleSubscriptionDesc>> getSimpleSubscriptionsOfUser(String userEmail)
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throws BrokerException {
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final String service = "/subscriptions";
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(openairePath + service)
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.queryParam("email", userEmail);
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LOGGER.debug(builder.build().encode().toUri());
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ResponseEntity<Map<String, List<SimpleSubscriptionDesc>>> resp;
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try {
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resp = restTemplate.exchange(
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builder.build().encode().toUri(),
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HttpMethod.GET,
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null,
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new ParameterizedTypeReference<Map<String, List<SimpleSubscriptionDesc>>>() {
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});
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} catch (RestClientException e) {
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LOGGER.debug("Exception on getSimpleSubscriptionsOfUser" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return resp.getBody();
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}
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@Override
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public Subscription subscribe(OpenaireSubscription obj) throws BrokerException {
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final String service = "/subscribe";
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//build the uri params
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(openairePath + service);
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HttpEntity<OpenaireSubscription> entity = new HttpEntity<>(obj, httpHeaders);
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//create new template engine
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RestTemplate template = new RestTemplate();
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template.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
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ResponseEntity<Subscription> resp;
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try {
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//communicate with endpoint
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resp = restTemplate.exchange(
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builder.build().encode().toUri(),
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HttpMethod.POST,
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entity,
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new ParameterizedTypeReference<Subscription>() {
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});
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} catch (RestClientException e) {
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LOGGER.debug("Exception on OpenaireSubscription" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return resp.getBody();
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}
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@Override
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public ResponseEntity<Object> unsubscribe(String subscriptionId) throws BrokerException {
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final String service = "/subscriptions/" + subscriptionId;
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//build the uri params
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(apiPath + service);
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try {
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//communicate with endpoint
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restTemplate.exchange(
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builder.build().encode().toUri(),
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HttpMethod.DELETE,
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null,
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new ParameterizedTypeReference<Void>() {
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});
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} catch (RestClientException e) {
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LOGGER.debug("Exception on unsubscribe" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return new ResponseEntity<>("OK",HttpStatus.OK);
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}
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@Override
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public Subscription getSubscription( String subscriptionId) throws BrokerException {
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final String service = "/subscriptions/" + subscriptionId;
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//build the uri params
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UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(apiPath + service);
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ResponseEntity<Subscription> resp;
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try {
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//communicate with endpoint
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resp = restTemplate.exchange(
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builder.build().encode().toUri(),
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HttpMethod.GET,
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null,
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new ParameterizedTypeReference<Subscription>() {
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});
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} catch (RestClientException e) {
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LOGGER.debug("Exception on getSubscription" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return resp.getBody();
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}
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@Override
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public Map<String, Term> getDnetTopics() throws BrokerException {
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return topics;
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}
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@Override
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public EventsPage getNotificationsBySubscriptionId(String subscriptionId,
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String page,
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String size) throws BrokerException {
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UriComponents uriComponents = UriComponentsBuilder
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.fromHttpUrl(openairePath + "/notifications/")
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.path("/{id}/{page}/{size}/")
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.build().expand(subscriptionId,page, size).encode();
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ResponseEntity<EventsPage> resp;
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try {
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resp = restTemplate.exchange(
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uriComponents.toUri(),
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HttpMethod.GET,
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null,
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new ParameterizedTypeReference<EventsPage>() {
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});
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} catch (RestClientException e) {
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LOGGER.debug("Exception on getNotificationsBySubscriptionId" , e);
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emailUtils.reportException(e);
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throw new BrokerException(e);
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}
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return resp.getBody();
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}
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//@Override
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public Map<String, List<Subscription>> getSubscriptionsOfUser(String userEmail)
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throws BrokerException {
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Map<String, List<SimpleSubscriptionDesc>> simpleSubs = getSimpleSubscriptionsOfUser(userEmail);
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Map<String,List<Subscription>> subs = new HashMap<>();
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List<Subscription> subscriptions = null;
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for(String s:simpleSubs.keySet()){
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List<SimpleSubscriptionDesc> simpleSubscriptionDescs = simpleSubs.get(s);
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for(SimpleSubscriptionDesc simpleSubscriptionDesc : simpleSubscriptionDescs) {
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subscriptions = new ArrayList<>();
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subscriptions.add(getSubscription(simpleSubscriptionDesc.getId()));
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}
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subs.put(s,subscriptions);
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}
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return subs;
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}
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}
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