114 lines
4.4 KiB
Java
114 lines
4.4 KiB
Java
package org.schabi.newpipe.extractor.services.soundcloud;
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import com.grack.nanojson.JsonArray;
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import com.grack.nanojson.JsonObject;
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import com.grack.nanojson.JsonParser;
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import com.grack.nanojson.JsonParserException;
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import org.schabi.newpipe.extractor.*;
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import org.schabi.newpipe.extractor.downloader.Downloader;
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import org.schabi.newpipe.extractor.exceptions.ExtractionException;
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import org.schabi.newpipe.extractor.exceptions.ParsingException;
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import org.schabi.newpipe.extractor.linkhandler.SearchQueryHandler;
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import org.schabi.newpipe.extractor.search.InfoItemsSearchCollector;
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import org.schabi.newpipe.extractor.search.SearchExtractor;
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import org.schabi.newpipe.extractor.utils.Parser;
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import javax.annotation.Nonnull;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.net.MalformedURLException;
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import java.net.URL;
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import static org.schabi.newpipe.extractor.services.soundcloud.SoundcloudSearchQueryHandlerFactory.ITEMS_PER_PAGE;
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public class SoundcloudSearchExtractor extends SearchExtractor {
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private JsonArray searchCollection;
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public SoundcloudSearchExtractor(StreamingService service, SearchQueryHandler linkHandler) {
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super(service, linkHandler);
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}
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@Override
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public String getSearchSuggestion() {
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return null;
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}
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@Nonnull
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@Override
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public InfoItemsPage<InfoItem> getInitialPage() throws IOException, ExtractionException {
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return new InfoItemsPage<>(collectItems(searchCollection), getNextPageUrl());
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}
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@Override
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public String getNextPageUrl() throws IOException, ExtractionException {
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return getNextPageUrlFromCurrentUrl(getUrl());
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}
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@Override
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public InfoItemsPage<InfoItem> getPage(String pageUrl) throws IOException, ExtractionException {
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final Downloader dl = getDownloader();
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try {
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final String response = dl.get(pageUrl, getExtractorLocalization()).responseBody();
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searchCollection = JsonParser.object().from(response).getArray("collection");
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} catch (JsonParserException e) {
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throw new ParsingException("Could not parse json response", e);
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}
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return new InfoItemsPage<>(collectItems(searchCollection), getNextPageUrlFromCurrentUrl(pageUrl));
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}
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@Override
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public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
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final Downloader dl = getDownloader();
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final String url = getUrl();
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try {
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final String response = dl.get(url, getExtractorLocalization()).responseBody();
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searchCollection = JsonParser.object().from(response).getArray("collection");
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} catch (JsonParserException e) {
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throw new ParsingException("Could not parse json response", e);
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}
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if (searchCollection.size() == 0) {
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throw new SearchExtractor.NothingFoundException("Nothing found");
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}
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}
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private InfoItemsCollector<InfoItem, InfoItemExtractor> collectItems(JsonArray searchCollection) {
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final InfoItemsSearchCollector collector = getInfoItemSearchCollector();
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for (Object result : searchCollection) {
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if (!(result instanceof JsonObject)) continue;
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//noinspection ConstantConditions
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JsonObject searchResult = (JsonObject) result;
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String kind = searchResult.getString("kind", "");
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switch (kind) {
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case "user":
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collector.commit(new SoundcloudChannelInfoItemExtractor(searchResult));
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break;
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case "track":
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collector.commit(new SoundcloudStreamInfoItemExtractor(searchResult));
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break;
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case "playlist":
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collector.commit(new SoundcloudPlaylistInfoItemExtractor(searchResult));
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break;
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}
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}
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return collector;
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}
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private String getNextPageUrlFromCurrentUrl(String currentUrl)
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throws MalformedURLException, UnsupportedEncodingException {
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final int pageOffset = Integer.parseInt(
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Parser.compatParseMap(
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new URL(currentUrl)
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.getQuery())
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.get("offset"));
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return currentUrl.replace("&offset=" +
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Integer.toString(pageOffset),
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"&offset=" + Integer.toString(pageOffset + ITEMS_PER_PAGE));
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}
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}
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