DjalimSimaila/PackageViewer
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async implementation in Fedora

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Thomas Rubini 2022-12-13 19:41:11 +01:00
parent 5a27c77642
commit 6f36838ab5
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1 changed files with 45 additions and 60 deletions
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105
src/main/java/fr/packageviewer/distribution/FedoraDistribution.java
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@ -2,13 +2,11 @@ package fr.packageviewer.distribution;
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.*;
import java.net.http.*;
import fr.packageviewer.Pair;
import fr.packageviewer.parser.AsyncRequestsParser;
import org.json.*;
import java.util.concurrent.CompletableFuture;
import fr.packageviewer.pack.Package;
@ -17,25 +15,54 @@ import fr.packageviewer.LoggerManager;
import fr.packageviewer.pack.Package;
import fr.packageviewer.pack.SearchedPackage;
public class FedoraDistribution implements Distribution {
public class FedoraDistribution extends AsyncRequestsParser implements Distribution {
private String getPackageFromAPI(String packageName) {
protected CompletableFuture<Pair<Package, Set<String>>> getPackageFromAPI(String packageName) {
// create a new http client
HttpClient client = HttpClient.newHttpClient();
// and create its url
String url = "https://mdapi.fedoraproject.org/rawhide/pkg/"+packageName+"";
HttpRequest request = HttpRequest.newBuilder(URI.create(url)).build();
// send its url and return the string given
try {
String response = client.send(request, HttpResponse.BodyHandlers.ofString()).body();
if(response.contains("404: Not Found")) return "";
return response;
} catch (IOException|InterruptedException e) {
e.printStackTrace();
}
CompletableFuture<Pair<Package, Set<String>>> futureResult = new CompletableFuture<>();
client.sendAsync(request, HttpResponse.BodyHandlers.ofString()).thenAccept(result->{
String body = result.body();
if(body.contains("404: Not Found")) {
futureResult.complete(null);
return;
}
JSONObject json = new JSONObject(result.body());
// get infos
Set<String> dependenciesNames = new HashSet<>();
for (Object depPackageObj : json.getJSONArray("requires")) {
// convert object into String
JSONObject depPackageJson = (JSONObject) depPackageObj;
// add package into Package List
String depName = depPackageJson.getString("name");
if (depName.contains(".so"))
continue;
if (depName.contains("/"))
continue;
dependenciesNames.add(depName);
}
futureResult.complete(new Pair<>(
new Package(
json.getString("basename"),
json.getString("version"),
json.getString("repo"),
json.getString("description")
),
dependenciesNames
));
});
// if there's an error, return an empty string
return "";
return futureResult;
}
@Override
@ -73,46 +100,4 @@ public class FedoraDistribution implements Distribution {
}
return searchedPackagesList;
}
public Package getPackageTreeInternal(String packageName, int depth) {
String name, version, repo, description;
List<Package> deps = new ArrayList<>();
// parse the json
String response = getPackageFromAPI(packageName);
if (response == "") {
return new Package(packageName + "(not found)", "N/A", "N/A", "N/A", Collections.emptyList());
}
JSONObject json = new JSONObject(response);
// get infos except dependencies
name = json.getString("basename");
version = json.getString("version");
repo = "rpms/" + packageName;
description = json.getString("description");
// if we're at the maximum depth, return the package without its dependencies
if (depth == 0) {
return new Package(name, version, repo, description, Collections.emptyList());
} else {
// iterate for every package in the list
for (Object depPackageNameObj : json.getJSONArray("requires")) {
// convert object into String
JSONObject depPackageJSONObj = (JSONObject) depPackageNameObj;
// add package into Package List
String depName = depPackageJSONObj.getString("name");
if (depName.contains(".so"))
continue;
if (depName.contains("/"))
continue;
deps.add(getPackageTreeInternal(depName, depth - 1));
}
return new Package(name, version, repo, description, deps);
}
}
public CompletableFuture<Package> getPackageTree(String packageName, int depth){
return CompletableFuture.supplyAsync(()->{
return getPackageTreeInternal(packageName, depth);
});
}
}