DjalimSimaila/PackageViewer
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added searchPackage and getPackageTree to arch impl

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This commit is contained in:
Capelier-Marla 2022-12-09 21:29:07 +01:00
parent 5c0b0e115b
commit 513ba715b6
3 changed files with 94 additions and 73 deletions
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134
src/main/java/fr/packageviewer/ArchParser/ArchParser.java
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@ -1,85 +1,96 @@
package fr.packageviewer.ArchParser;
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.json.JSONObject;
import java.net.http.*;
import org.json.*;
public class ArchParser {
/**
* Will return the String json of the package from the Arch Linux API
* @param packageName the package name to get the json from
* @return json of the package
*/
public String getPackageFromAPI(String packageName){
// create a new http client
HttpClient client = HttpClient.newHttpClient();
// and create its url
HttpRequest request = HttpRequest.newBuilder(URI.create("https://archlinux.org/packages/search/json/?name="+packageName)).build();
// send its url and return the string given
try {
return client.send(request, HttpResponse.BodyHandlers.ofString()).body();
} catch (IOException|InterruptedException e) {
e.printStackTrace();
}
// if there's an error, return an empty string
return "";
}
String jsonStr = """
{
"version": 2,
"limit": 250,
"valid": true,
"results": [
{
"pkgname": "bash",
"pkgbase": "bash",
"repo": "core",
"arch": "x86_64",
"pkgver": "5.1.016",
"pkgrel": "1",
"epoch": 0,
"pkgdesc": "The GNU Bourne Again shell",
"url": "https://www.gnu.org/software/bash/bash.html",
"filename": "bash-5.1.016-1-x86_64.pkg.tar.zst",
"compressed_size": 1707705,
"installed_size": 8592907,
"build_date": "2022-01-08T18:31:11Z",
"last_update": "2022-01-09T19:38:32.491Z",
"flag_date": "2022-09-26T16:50:03.401Z",
"maintainers": [
"felixonmars",
"anthraxx",
"grazzolini"
],
"packager": "felixonmars",
"groups": [],
"licenses": [
"GPL"
],
"conflicts": [],
"provides": [
"sh"
],
"replaces": [],
"depends": [
"glibc",
"libreadline.so=8-64",
"ncurses",
"readline"
],
"optdepends": [
"bash-completion: for tab completion"
],
"makedepends": [],
"checkdepends": []
}
],
"num_pages": 1,
"page": 1
}""";
return jsonStr;
}
/**
* Will parse the given json and store data in a Package
* @param packageName the packag name to search
* Search for a package and return a list of packages
* @param packageName the package name to search
* @return
*/
public List<SearchedPackage> searchPackage(String packageName){
HttpClient client = HttpClient.newHttpClient();
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create("https://archlinux.org/packages/search/json/?q="+packageName))
.build();
HttpResponse<String> response;
try{
response = client.send(request, HttpResponse.BodyHandlers.ofString());
}catch(IOException|InterruptedException e){
e.printStackTrace();
return null;
}
JSONObject json = new JSONObject(response.body());
List<SearchedPackage> searchedPackagesList = new ArrayList<>();
// iterate for every package in the list
for (Object searchResultObj : json.getJSONArray("results")) {
// convert object into String
JSONObject searchResultJson = (JSONObject) searchResultObj;
// add package into to list
searchedPackagesList.add(new SearchedPackage(
searchResultJson.getString("pkgname"),
searchResultJson.getString("pkgver"),
searchResultJson.getString("repo"),
searchResultJson.getString("pkgdesc")
));
}
return searchedPackagesList;
}
/**
* Will generate a dependencies tree of depth 'depth' given the package name
* @param packageName the package name to search
* @param depth depth to search dependencies
* @return new Package
*/
public Package getPackageTree(String packageName, int depth){
String name, version, repo, description;
List<Package> deps = new ArrayList<>();
// parse the json
JSONObject json = new JSONObject(getPackageFromAPI(packageName));
//
JSONArray resultsArrayJson = json.getJSONArray("results");
if(resultsArrayJson.length()==0){
// unknown package, probably an abstract dependency
return null;
}
JSONObject resultJson = json.getJSONArray("results").getJSONObject(0);
// get infos except dependencies
@ -92,7 +103,8 @@ public class ArchParser {
if(depth==0){
return new Package(name, version, repo, description, Collections.emptyList());
} else {
for (Object depPackageNameObj : json.getJSONArray("depends")) {
// iterate for every package in the list
for (Object depPackageNameObj : resultJson.getJSONArray("depends")) {
// convert object into String
String depPackageName = (String) depPackageNameObj;
// add package into Package List

13
src/main/java/fr/packageviewer/ArchParser/Package.java
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@ -2,18 +2,11 @@ package fr.packageviewer.ArchParser;
import java.util.List;
public class Package {
String name;
String version;
String repo;
String description;
public class Package extends SearchedPackage {
List<Package> deps;
public Package(String name, String version, String repo, String desciption, List<Package> deps) {
this.name = name;
this.version = version;
this.repo = repo;
this.description = desciption;
public Package(String name, String version, String repo, String description, List<Package> deps) {
super(name, version, repo, description);
this.deps = deps;
}

16
src/main/java/fr/packageviewer/ArchParser/SearchedPackage.java Normal file
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@ -0,0 +1,16 @@
package fr.packageviewer.ArchParser;
public class SearchedPackage {
String name;
String version;
String repo;
String description;
public SearchedPackage(String name, String version, String repo, String desciption) {
this.name = name;
this.version = version;
this.repo = repo;
this.description = desciption;
}
}