VocabularyController.java

/*
 * Copyright 2018 Global Crop Diversity Trust
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.genesys.server.api.v1;

import java.io.IOException;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.UUID;

import javax.servlet.ServletException;

import org.genesys.blocks.model.JsonViews;
import org.genesys.server.api.ApiBaseController;
import org.genesys.server.api.FilteredPage;
import org.genesys.server.api.Pagination;
import org.genesys.server.exception.InvalidApiUsageException;
import org.genesys.server.model.filters.ControlledVocabularyFilter;
import org.genesys.server.model.vocab.ControlledVocabulary;
import org.genesys.server.model.vocab.VocabularyTerm;
import org.genesys.server.service.GeoService;
import org.genesys.server.service.InstituteService;
import org.genesys.server.service.VocabularyService;
import org.genesys.server.service.ShortFilterService.FilterInfo;
import org.genesys.server.service.worker.ShortFilterProcessor;
import org.springdoc.api.annotations.ParameterObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Sort;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import com.fasterxml.jackson.annotation.JsonView;

import io.swagger.annotations.Api;

/**
 * The Class VocabularyController.
 *
 * @author Matija Obreza
 */
@RestController("vocabularyApi1")
@RequestMapping(VocabularyController.CONTROLLER_URL)
@Api(tags = { "vocabulary" })
public class VocabularyController extends ApiBaseController {

	/** The Constant CONTROLLER_URL. */
	public static final String CONTROLLER_URL = ApiBaseController.APIv1_BASE + "/vocabulary";

	public static final String FAO_WIEWS_UUID = "36b4a674-e2eb-4ba1-a05a-71cfc2af862e";

	/**
	 * ISO 3166-1 alpha-2 representation of names of countries and their
	 * subdivisions, contains two-letter country codes
	 * https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
	 */
	public static final String ISO3166_2ALPHA_UUID = "3e39a73e-d1ed-40b0-9944-ac5795128686";

	/**
	 * ISO 3166-1 alpha-2 representation of names of countries and their
	 * subdivisions, contains three-letter country codes
	 * https://en.wikipedia.org/wiki/ISO_3166-1_alpha-3
	 */
	public static final String ISO3166_3ALPHA_UUID = "39a3d6a2-20e6-4fab-8bfe-acb1f9fe774c";

	/**
	 * ISO 3166-1 numeric representation of names of countries and their
	 * subdivisions, contains three-digit country codes
	 * https://en.wikipedia.org/wiki/ISO_3166-1_numeric
	 */
	public static final String ISO3166_NUMERIC_UUID = "bd45f660-853f-4034-a434-ed50679579cc";

	@Autowired
	private VocabularyService vocabularyService;

	/** The short filter service. */
	@Autowired
	protected ShortFilterProcessor shortFilterProcessor;

	/// Proxied vocabularies
	@Autowired
	private InstituteService instituteService;

	@Autowired
	private GeoService geoService;

	/**
	 * Gets the.
	 *
	 * @param uuid the uuid
	 * @return the controlled vocabulary
	 */
	@GetMapping(value = "/{uuid}")
	public ControlledVocabulary get(@PathVariable("uuid") final UUID uuid) {
		return vocabularyService.getVocabulary(uuid);
	}

	/**
	 * Gets the term.
	 *
	 * @param uuid the uuid
	 * @param code the code
	 * @return the term
	 */
	@GetMapping(value = "/{uuid}/{code}")
	public VocabularyTerm getTerm(@PathVariable("uuid") final UUID uuid, @PathVariable("code") final String code) throws IOException, ServletException {

		switch (uuid.toString()) {
		case FAO_WIEWS_UUID:
			return instituteService.getInstituteTerm(code);
		case ISO3166_2ALPHA_UUID:
			return geoService.get3166Alpha2Term(code);
		case ISO3166_3ALPHA_UUID:
			return geoService.get3166Alpha3Term(code);
		case ISO3166_NUMERIC_UUID:
			return geoService.get3166NumericTerm(code);
		default:
			return vocabularyService.getVocabularyTerm(uuid, code);
		}
	}

	/**
	 * Autocomplete term.
	 *
	 * @param uuid the uuid
	 * @param like the like
	 * @return the list
	 */
	@PostMapping(value = "/{uuid}/autocomplete")
	@JsonView({ JsonViews.Public.class })
	public List<VocabularyTerm> autocompleteTerm(@PathVariable("uuid") final UUID uuid, @RequestParam("q") final String like) {
		return vocabularyService.autocompleteTerms(uuid, like);
	}

	@PostMapping(value = "/{uuid}/decode")
	public Map<String, String> decodeTerms(@PathVariable("uuid") final UUID uuid,
        @RequestParam(value = "locale", defaultValue = "en", required = false) final String locale, @RequestBody(required = false) Set<String> codes) {
		switch (uuid.toString()) {
			case FAO_WIEWS_UUID:
				return instituteService.decodeCodes(codes);
			case ISO3166_3ALPHA_UUID:
				return geoService.decode3166Alpha3Terms(codes, Locale.forLanguageTag(locale));
			default:
				throw new InvalidApiUsageException("No decoding for such vocabulary");
		}
	}

	/**
	 * List terms.
	 *
	 * @param uuid the uuid
	 * @param page the page
	 * @return the page
	 */
	@PostMapping(value = "/{uuid}/terms")
	@JsonView({ JsonViews.Public.class })
	public Page<VocabularyTerm> listTerms(@PathVariable("uuid") final UUID uuid, @ParameterObject final Pagination page) {
		// LOG.warn("Loading vocab");
		final ControlledVocabulary vocabulary = vocabularyService.getVocabulary(uuid);
		// LOG.warn("Loading terms");

		switch (uuid.toString()) {
		case FAO_WIEWS_UUID:
			return instituteService.listTerms(page.toPageRequest(MAX_PAGE_SIZE, DEFAULT_PAGE_SIZE, Sort.Direction.ASC, "code"));
		case ISO3166_2ALPHA_UUID:
			return geoService.list3166Alpha2Terms(page.toPageRequest(MAX_PAGE_SIZE, DEFAULT_PAGE_SIZE, Sort.Direction.ASC, "code2"));
		case ISO3166_3ALPHA_UUID:
			return geoService.list3166Alpha3Terms(page.toPageRequest(MAX_PAGE_SIZE, DEFAULT_PAGE_SIZE, Sort.Direction.ASC, "code3"));
		case ISO3166_NUMERIC_UUID:
			return geoService.list3166NumericTerms(page.toPageRequest(MAX_PAGE_SIZE, DEFAULT_PAGE_SIZE, Sort.Direction.ASC, "codeNum"));
		default:
			return vocabularyService.listTerms(vocabulary, page.toPageRequest(MAX_PAGE_SIZE, DEFAULT_PAGE_SIZE, Sort.Direction.ASC, "code"));
		}
	}

	/**
	 * Delete.
	 *
	 * @param uuid the uuid
	 * @param version the version
	 * @return the controlled vocabulary
	 */
	@DeleteMapping(value = "/{uuid},{version}")
	public ControlledVocabulary delete(@PathVariable("uuid") final UUID uuid, @PathVariable("version") final int version) {
		return vocabularyService.deleteVocabulary(vocabularyService.getVocabulary(uuid, version));
	}

	/**
	 * Creates the.
	 *
	 * @param source the source
	 * @return the controlled vocabulary
	 */
	@PostMapping(value = "/create")
	public ControlledVocabulary create(@RequestBody final ControlledVocabulary source) {
		return vocabularyService.createVocabulary(source);
	}

	/**
	 * Update controlled vocabulary.
	 *
	 * @param source the source
	 * @return the controlled vocabulary
	 */
	@PostMapping(value = "/update")
	public ControlledVocabulary updateControlledVocabulary(@RequestBody final ControlledVocabulary source) {
		return vocabularyService.updateVocabulary(source);
	}

	/**
	 * List controlled vocabularies.
	 *
	 * @param page the page
	 * @param filter the controlled vocabulary filter
	 * @return the page
	 * @throws IOException
	 */
	@PostMapping(value = "/list")
	public FilteredPage<ControlledVocabulary, ControlledVocabularyFilter> list(@RequestParam(name = "f", required = false) String filterCode, @ParameterObject final Pagination page,
			@RequestBody(required = false) ControlledVocabularyFilter filter) throws IOException {

		FilterInfo<ControlledVocabularyFilter> filterInfo = shortFilterProcessor.processFilter(filterCode, filter, ControlledVocabularyFilter.class);
		return new FilteredPage<>(filterInfo.filterCode, filterInfo.filter, vocabularyService.listVocabularies(filterInfo.filter, page.toPageRequest(MAX_PAGE_SIZE, DEFAULT_PAGE_SIZE, Sort.Direction.ASC,
			"id")));
	}
}