ItemInfoRestController.java

/**
 * Copyright 2008 The University of North Carolina at Chapel Hill
 *
 * 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 edu.unc.lib.dl.cdr.services.rest;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Resource;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.ServletContextAware;

import edu.unc.lib.dl.search.solr.model.BriefObjectMetadata;
import edu.unc.lib.dl.search.solr.model.BriefObjectMetadataBean;
import edu.unc.lib.dl.search.solr.model.IdListRequest;
import edu.unc.lib.dl.search.solr.model.SimpleIdRequest;
import edu.unc.lib.dl.search.solr.service.SolrSearchService;
import edu.unc.lib.dl.util.TripleStoreQueryService;
import edu.unc.lib.dl.acl.util.AccessGroupConstants;
import edu.unc.lib.dl.acl.util.AccessGroupSet;

@Controller
@RequestMapping(value = { "/status/item*", "/status/item" })
public class ItemInfoRestController implements ServletContextAware {
	
	private static final Logger LOG = LoggerFactory.getLogger(ItemInfoRestController.class);
	protected ServletContext servletContext = null;

	@Resource
	private SolrSearchService solrSearchService;
	
	@Resource
	protected TripleStoreQueryService tripleStoreQueryService;

	@Resource(name = "contextUrl")
	protected String contextUrl = null;

	@RequestMapping(value = "{id}/solrRecord", method = RequestMethod.GET)
	public @ResponseBody
	BriefObjectMetadataBean getItemSolrRecord(HttpServletResponse response, @PathVariable("id") String id) {
		response.setContentType("application/xml");
		AccessGroupSet groupSet = new AccessGroupSet(AccessGroupConstants.ADMIN_GROUP);
		SimpleIdRequest idRequest = new SimpleIdRequest(id, groupSet);
		BriefObjectMetadataBean metadata = solrSearchService.getObjectById(idRequest);
		return metadata;
	}

	@RequestMapping(value = "{id}/solrRecord/version", method = RequestMethod.GET)
	public @ResponseBody
	Long getItemLastIndexed(@PathVariable("id") String id) {
		// For when group forwarding is enabled here
		/* AccessGroupSet groupSet = new AccessGroupSet(GroupsThreadStore.getGroups().split(";")); */
		AccessGroupSet groupSet = new AccessGroupSet(AccessGroupConstants.ADMIN_GROUP);
		SimpleIdRequest idRequest = new SimpleIdRequest(id, Arrays.asList("_version_"), groupSet);
		BriefObjectMetadataBean md = solrSearchService.getObjectById(idRequest);
		if (md == null || md.get_version_() == null)
			return null;
		return md.get_version_();
	}
	
	@RequestMapping(value = "solrRecord/version", method = RequestMethod.POST)
	public @ResponseBody
	Map<String, String> getItemsLastIndexed(@RequestParam("ids") String idsString) {
		if (idsString == null)
			return null;
		
		List<String> ids = Arrays.asList(idsString.split("\n"));
		
		// For when group forwarding is enabled here
		/*AccessGroupSet groupSet = new AccessGroupSet(GroupsThreadStore.getGroups().split(";"));*/
		AccessGroupSet groupSet = new AccessGroupSet(AccessGroupConstants.ADMIN_GROUP);
		List<String> resultFields = Arrays.asList("_version_");
		
		IdListRequest listRequest = new IdListRequest(ids, resultFields, groupSet);
		List<BriefObjectMetadata> listResults = solrSearchService.getObjectsById(listRequest);
		Map<String, String> results = new HashMap<String,String>(listResults.size());
		
		for (BriefObjectMetadata result: listResults) {
			results.put(result.getId(), Long.toString(result.get_version_()));
		}
		
		return results;
	}

	public void setSolrSearchService(SolrSearchService solrSearchService) {
		this.solrSearchService = solrSearchService;
	}

	@Override
	public void setServletContext(ServletContext servletContext) {
		this.servletContext = servletContext;
	}

	public void setTripleStoreQueryService(TripleStoreQueryService tripleStoreQueryService) {
		this.tripleStoreQueryService = tripleStoreQueryService;
	}
}