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[FEATURE] Методы работы с Jar(JarHelper)
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package ru.gravit.utils.helper;
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import java.io.IOException;
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import java.nio.file.Path;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.jar.JarInputStream;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipInputStream;
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public class JarHelper {
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@FunctionalInterface
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interface ZipWalkCallback
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{
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void process(ZipInputStream input, ZipEntry e);
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}
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@FunctionalInterface
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interface JarWalkCallback
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{
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void process(ZipInputStream input, ZipEntry e, String fullClassName, String clazz);
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}
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public static void zipWalk(ZipInputStream input, ZipWalkCallback callback) throws IOException
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{
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ZipEntry e = input.getNextEntry();
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while (e != null)
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{
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callback.process(input, e);
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e = input.getNextEntry();
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}
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}
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public static void jarWalk(JarInputStream input, JarWalkCallback callback) throws IOException
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{
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zipWalk(input, (in, e) -> {
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String filename = e.getName();
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if(filename.endsWith(".class"))
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{
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String classFull = filename.replaceAll("/", ".").substring(0,
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filename.length() - ".class".length());
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String clazz = classFull.substring(classFull.lastIndexOf('.'));
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callback.process(in,e, classFull, clazz);
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}
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});
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}
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public static Map<String, String> jarMap(JarInputStream input, boolean overwrite) throws IOException
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{
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Map<String, String> map = new HashMap<>();
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jarMap(input, map, overwrite);
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return map;
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}
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public static void jarMap(JarInputStream input, Map<String, String> map, boolean overwrite) throws IOException
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{
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jarWalk(input, (in, e, classFull, clazz) -> {
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if(overwrite) map.put(clazz, classFull);
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else map.putIfAbsent(clazz, classFull);
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});
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}
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public static Map<String, String> jarMap(Path file, boolean overwrite) throws IOException
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{
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try(JarInputStream inputStream = new JarInputStream(IOHelper.newZipInput(file)))
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{
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return jarMap(inputStream,overwrite);
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}
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}
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public static void jarMap(Path file, Map<String, String> map, boolean overwrite) throws IOException
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{
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try(JarInputStream inputStream = new JarInputStream(IOHelper.newZipInput(file)))
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{
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jarMap(inputStream, map,overwrite);
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}
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}
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public static Map<String, String> jarMap(Class clazz, boolean overwrite) throws IOException
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{
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Path file = IOHelper.getCodeSource(clazz);
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return jarMap(file, overwrite);
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}
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public static void jarMap(Class clazz, Map<String, String> map, boolean overwrite) throws IOException
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{
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Path file = IOHelper.getCodeSource(clazz);
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jarMap(file, map, overwrite);
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}
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}
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