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package com.rbmhtechnology.vind.api.result;
import com.rbmhtechnology.vind.SearchServerException;
import com.rbmhtechnology.vind.api.SearchServer;
import com.rbmhtechnology.vind.api.query.FulltextSearch;
import com.rbmhtechnology.vind.api.query.division.Page;
import com.rbmhtechnology.vind.api.query.division.ResultSubset;
import java.util.List;
/**
* Created by fonso on 31.03.17.
*/
public class BeanPageResult extends BeanSearchResult {
private Page page;
/**
* DEPRECATED: use the signature providing the time the query took.{@link BeanPageResult#BeanPageResult(long, long, List, FulltextSearch, FacetResults, SearchServer, Class)}
* Creates a new instance of {@link BeanPageResult}.
*
* @param numOfResults Number of documents returned by the search server instance.
* @param results A list of results parsed to T.
* @param query The fulltext query executed to retrieve this set of results.
* @param facetResults The different faceted results of the query.
* @param server A search server implementation.
* @param c Annotated class to parse the results to.
*/
@Deprecated
public BeanPageResult(long numOfResults, List results, FulltextSearch query, FacetResults facetResults, SearchServer server, Class c) {
super(numOfResults, results, query, facetResults, server, c);
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());
}
}
/**
* Creates a new instance of {@link BeanPageResult}.
*
* @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 T.
* @param query The fulltext query executed to retrieve this set of results.
* @param facetResults The different faceted results of the query.
* @param server A search server implementation.
* @param c Annotated class to parse the results to.
*/
public BeanPageResult(long numOfResults, long queryTime ,List results, FulltextSearch query, FacetResults facetResults, SearchServer server, Class c) {
super(numOfResults, queryTime, results, query, facetResults, server, c);
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 BeanSearchResult containing the next page results.
* @throws {@link SearchServerException} When something goes wrong with the search execution.
*/
public BeanSearchResult nextPage() {
try{
return server.execute(query.copy().page(this.page.next()), annotatedClass);
} 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 {@link BeanSearchResult} containing the previous page results.
* @throws {@link SearchServerException} When something goes wrong with the search execution.
*/
public BeanSearchResult previousPage() {
try{
return server.execute(query.copy().page(this.page.previous()), annotatedClass);
} 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()));
}
}
