110 lines
4.9 KiB
Java
110 lines
4.9 KiB
Java
package eu.openaire.urls_controller.controllers;
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import eu.openaire.urls_controller.configuration.ImpalaConnector;
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import eu.openaire.urls_controller.services.StatsService;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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/**
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* This controller returns statistics for the database.
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*/
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@RestController
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@RequestMapping("/stats")
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public class StatsController {
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private static final Logger logger = LoggerFactory.getLogger(StatsController.class);
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@Autowired
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private StatsService statsService;
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/**
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* This endpoint returns the total number of payloads existing in the database, independently of the way they were aggregated.
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* This includes the payloads created by other pieces of software, before the PDF-Aggregation-Service was created.
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* */
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@GetMapping("getNumberOfAllPayloads")
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public ResponseEntity<?> getNumberOfAllPayloads() {
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logger.info("Received a \"getNumberOfAllPayloads\" request.");
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final String getPayloadsNumberQuery = "select count(id) from " + ImpalaConnector.databaseName + ".payload";
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return statsService.getNumberOfPayloads(getPayloadsNumberQuery, "payloads");
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}
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/**
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* This endpoint returns the number of payloads aggregated by the PDF-Aggregated-Service itself.
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* It excludes the payloads aggregated by other methods, by applying a Date-filter for the records created in 2021 or later.
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* */
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@GetMapping("getNumberOfPayloadsAggregatedByService")
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public ResponseEntity<?> getNumberOfPayloadsAggregatedByService() {
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logger.info("Received a \"getNumberOfPayloadsAggregatedByService\" request.");
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String getPayloadsAggregatedQuery = "select count(id) from " + ImpalaConnector.databaseName + ".payload where `date` >= cast(cast('2021-01-01' as timestamp) as bigint)";
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return statsService.getNumberOfPayloads(getPayloadsAggregatedQuery, "payloads retrieved by the PDF Aggregation Service");
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}
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/**
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* This endpoint returns the number of payloads related to the given datasourceID.
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* */
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@GetMapping("getNumberOfPayloadsForDatasource")
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public ResponseEntity<?> getNumberOfPayloadsForDatasource(@RequestParam String datasourceId) {
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logger.info("Received a \"getNumberOfPayloadsForDatasource\" request.");
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final String getPayloadsNumberForDatasourceQuery =
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"select count(p.id) from " + ImpalaConnector.databaseName + ".payload p\n" +
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" join " + ImpalaConnector.databaseName + ".publication pu on pu.id=p.id and pu.datasourceid=\"" + datasourceId + "\"";
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if ( logger.isTraceEnabled() )
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logger.trace("getPayloadsNumberForDatasourceQuery:\n" + getPayloadsNumberForDatasourceQuery);
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return statsService.getNumberOfPayloads(getPayloadsNumberForDatasourceQuery, "payloads related to datasourceId \"" + datasourceId + "\"");
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}
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// TODO - Add an endpoint to get the publication year as a param and return the number of payloads for the publications of that year.
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// select count(p.id) from payload p
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// join publication pu on pu.id=p.id and pu.year=<GIVEN_YEAR>
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// TODO - Add an endpoint to return the info of all datasources in the database with the count of their payloads (including 0).
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// Maybe have a param "numTopDatasources" which will work a a "limit" in the following query.
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// In case the "numTopDatasources" param is not given or is less or equal to 0, then no limit will be added to the query.
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/*
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select d.id, d.name, d.type, d.allow_harvest, count(p.id) as payload_count from datasource d
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join publication pu on pu.datasourceid=d.id
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left join payload p on p.id=pu.id -- We want the datasources with 0 payloads too, so we use "left join".
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group by d.id, d.name, d.type, d.allow_harvest
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order by payload_count desc
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*/
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/**
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* This endpoint returns the total number of distinct full-text files existing in the database.
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* */
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@GetMapping("getNumberOfAllDistinctFullTexts")
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public ResponseEntity<?> getNumberOfAllDistinctFullTexts() {
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logger.info("Received a \"getNumberOfAllDistinctFullTexts\" request.");
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final String getPayloadsNumberQuery = "select count(distinct `hash`) from " + ImpalaConnector.databaseName + ".payload";
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return statsService.getNumberOfPayloads(getPayloadsNumberQuery, "distinct full-text files");
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}
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/**
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* This endpoint returns the number of records inspected by the PDF-Aggregation-Service.
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* */
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@GetMapping("getNumberOfRecordsInspected")
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public ResponseEntity<?> getNumberOfRecordsInspected()
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{
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return statsService.getNumberOfRecordsInspected();
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}
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}
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