com.rbmhtechnology.vind.api.result.InverseSearchPageResult Maven / Gradle / Ivy
package com.rbmhtechnology.vind.api.result;
import com.rbmhtechnology.vind.SearchServerException;
import com.rbmhtechnology.vind.api.SearchServer;
import com.rbmhtechnology.vind.api.query.division.Page;
import com.rbmhtechnology.vind.api.query.division.ResultSubset;
import com.rbmhtechnology.vind.api.query.inverseSearch.InverseSearch;
import com.rbmhtechnology.vind.model.InverseSearchQuery;
import com.rbmhtechnology.vind.model.DocumentFactory;
import java.util.List;
/**
*/
public class InverseSearchPageResult extends InverseSearchResult {
private Page page;
/**
* Creates a new instance of {@link InverseSearchPageResult}.
*
* @param numOfResults Number of documents returned by the search server instance.
* @param queryTime the time the query took in the backend.
* @param results A list of results parsed to Document.
* @param searchQuery The fulltext query executed to retrieve this set of results.
* @param server A search server implementation.
* @param docFactory document factory holding the schema configuration of documents to parse the results to.
*/
public InverseSearchPageResult(long numOfResults, long queryTime, List results, InverseSearch searchQuery, SearchServer server, DocumentFactory docFactory) {
super(numOfResults, queryTime, results, searchQuery, server, docFactory);
if (query.getResultSet().getType().equals(ResultSubset.DivisionType.page)) {
this.page = (Page) query.getResultSet();
} else {
throw new RuntimeException("Search result set is not configured as page: Result set type is "+query.getResultSet().getType());
}
}
/**
* Gets the next page of results.
* @return Instance of {@link InverseSearchResult} containing the next page results.
* @throws {@link SearchServerException} thrown when the server is not able to execute the query.
*/
public InverseSearchResult nextPage() {
try{
return server.execute(query.copy().page(this.page.next()), factory);
} catch (SearchServerException e) {
log.error("Unable to retrieve from search server next result", e);
throw e;
}
}
/**
* Gets the previous page of results.
* @return Instance of BeanSearchResult containing the previous page results.
* @throws {@link SearchServerException} thrown when the server is not able to execute the query.
*/
public InverseSearchResult previousPage() {
try{
return server.execute(query.copy().page(this.page.previous()), factory);
} catch (SearchServerException e) {
log.error("Unable to retrieve from search server previous result", e);
throw e;
}
}
/**
* Checks whether this result has a next page or not.
* @return true if there is a next page.
*/
public boolean hasNextPage() {
return this.page.getPage() < getNumberOfPages();
}
/**
* Checks whether this result has a previous page or not.
* @return true if there is a previous page.
*/
public boolean hasPreviousPage() {
return this.page.getPage() > 1;
}
/**
* Gets the actual page details.
* @return the page details.
*/
public int getPage() {
return this.page.getPage();
}
/**
* Gets the number of results in the actual page configuration.
* @return a number of results.
*/
public int getPagesize() {
return this.page.getPagesize();
}
/**
* Gets the number of pages for the query and with the actual page configuration.
* @return a number of pages.
*/
public int getNumberOfPages() {
return (int) Math.ceil(numOfResults/((double)this.page.getPagesize()));
}
}