1515 * credit to Alviann (https://github.com/Alviannn/DependencyHelper)
1616 */
1717public class DependencyHelper {
18+
1819 private final ClassLoader classLoader ;
1920
2021 public DependencyHelper (ClassLoader classLoader ) {
2122 this .classLoader = classLoader ;
2223 }
2324
24- public DependencyHelper (Class <?> clazz ) {
25- this .classLoader = clazz .getClassLoader ();
26- }
27-
2825 /**
2926 * downloads a dependency file
3027 *
@@ -55,89 +52,11 @@ public void download(String fileName, String fileUrl, Path dirPath) throws IOExc
5552 }
5653 }
5754
58- /**
59- * downloads a dependency file
60- * <p>
61- * without file name parameter, it will automatically take the name from the URL (might not work sometimes)
62- *
63- * @param fileUrl the file url
64- * @param dirPath the directory path
65- * @throws IOException if the download fails
66- */
67- @ Deprecated
68- @ SuppressWarnings ("ResultOfMethodCallIgnored" )
69- public void download (String fileUrl , Path dirPath ) throws IOException {
70- File dir = dirPath .toFile ();
71- if (!dir .exists ()) {
72- dir .mkdir ();
73- }
74-
75- String [] strArray = fileUrl .split ("/" );
76- String fileName = strArray [strArray .length - 1 ];
77-
78- File file = new File (dir , fileName );
79- if (file .exists ()) {
80- return ;
81- }
82-
83- try {
84- URL url = new URL (fileUrl );
85- try (InputStream stream = url .openStream ()) {
86- Files .copy (stream , file .toPath ());
87- }
88- } catch (Exception e ) {
89- throw new IOException ("Failed to download " + fileName );
90- }
91- }
92-
93- /**
94- * loads the dependency file
95- *
96- * @param fileName the name
97- * @param fileUrl the file url
98- * @param dirPath the directory path
99- * @throws IOException if the dependency file doesn't exists
100- * @throws IllegalAccessException if the dependency file isn't a .jar
101- */
102- public void load (String fileName , String fileUrl , Path dirPath ) throws IOException , IllegalAccessException {
103- File dir = dirPath .toFile ();
104- if (!dir .exists ()) {
105- return ;
106- }
107-
108- File file = new File (dir , fileName );
109- if (!file .exists ()) {
110- throw new FileNotFoundException ("Cannot file " + fileName + "!" );
111- }
112- if (!file .getName ().endsWith (".jar" )) {
113- throw new IllegalAccessException ("Cannot load file that aren't .jar(s)!" );
114- }
115-
116- ClassLoader previousLoader = Thread .currentThread ().getContextClassLoader ();
117- Thread .currentThread ().setContextClassLoader (classLoader );
118-
119- if (classLoader instanceof URLClassLoader ) {
120- URLClassLoader loader = (URLClassLoader ) classLoader ;
121- try {
122- Method addURL = URLClassLoader .class .getDeclaredMethod ("addURL" , URL .class );
123- addURL .setAccessible (true );
124- addURL .invoke (loader , file .toURI ().toURL ());
125- } catch (Exception e ) {
126- Thread .currentThread ().setContextClassLoader (previousLoader );
127- throw new RuntimeException ("Failed to load " + fileName + "!" );
128- }
129- } else {
130- Thread .currentThread ().setContextClassLoader (previousLoader );
131- throw new RuntimeException ("Failed to cast class loader!" );
132- }
133- Thread .currentThread ().setContextClassLoader (previousLoader );
134- }
135-
13655 /**
13756 * loads the dependency file
13857 *
13958 * @param file the file
140- * @throws IOException if the dependency file doesn't exists
59+ * @throws IOException if the dependency file doesn't exist
14160 * @throws IllegalAccessException if the dependency file isn't a .jar
14261 */
14362 public void load (File file ) throws IOException , IllegalAccessException {
@@ -172,7 +91,7 @@ public void load(File file) throws IOException, IllegalAccessException {
17291 * loads all dependencies on a specific directory
17392 *
17493 * @param dirPath the directory path
175- * @throws IOException if the dependency file doesn't exists
94+ * @throws IOException if the dependency file doesn't exist
17695 * @throws IllegalAccessException if the dependency file isn't a .jar
17796 */
17897 @ SuppressWarnings ("ConstantConditions" )
@@ -190,20 +109,6 @@ public void loadDir(Path dirPath) throws IOException, IllegalAccessException {
190109 }
191110 }
192111
193- /**
194- * loads the dependencies
195- *
196- * @param dependencies the dependencies
197- * @param dirPath the directory path
198- * @throws IOException if the dependency file doesn't exists
199- * @throws IllegalAccessException if the dependency file isn't a .jar
200- */
201- public void load (Map <String , String > dependencies , Path dirPath ) throws IOException , IllegalAccessException {
202- for (Map .Entry <String , String > entry : dependencies .entrySet ()) {
203- this .load (entry .getKey (), entry .getValue (), dirPath );
204- }
205- }
206-
207112 /**
208113 * downloads the dependencies
209114 *
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