Class Helper updated. It can search for classes correctly.
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b28129ab97
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413441a26a
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@ -1,9 +1,9 @@
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package haflow.utility;
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import java.io.File;
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import java.io.IOException;
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import java.net.URL;
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import java.net.URLClassLoader;
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import java.net.URLDecoder;
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import java.util.ArrayList;
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import java.util.Enumeration;
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import java.util.List;
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@ -14,117 +14,26 @@ import org.springframework.stereotype.Component;
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@Component
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public class ClassHelper {
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private List<String> getClassNameByFile(String packageName,
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String filePath, List<String> className,
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boolean searchInChildPackage) throws Exception {
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List<String> classNames = new ArrayList<String>();
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String decodedFilePath = URLDecoder.decode(filePath, "utf-8");
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File file = new File(decodedFilePath);
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File[] classFiles = file.listFiles();
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for (File classFile : classFiles) {
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if (classFile.isDirectory()) {
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if (searchInChildPackage) {
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classNames.addAll(getClassNameByFile(packageName,
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classFile.getPath(), classNames,
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searchInChildPackage));
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}
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} else {
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String classFilePath = classFile.getPath();
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if (classFilePath.endsWith(".class")) {
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classFilePath = classFilePath.replace("\\", ".");
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classFilePath = classFilePath.replace("/", ".");
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classFilePath = classFilePath.substring(
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classFilePath.indexOf("classes") + 8,
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classFilePath.lastIndexOf("."));
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classNames.add(classFilePath);
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}
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}
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}
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return classNames;
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}
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private List<String> getClassNameByJar(String jarPath,
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boolean searchInChildPackage) throws Exception {
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List<String> classNames = new ArrayList<String>();
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String[] jarInfo = jarPath.split("!");
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String jarFilePath = jarInfo[0].substring(jarInfo[0].indexOf("/"));
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String decodedJarFilePath = URLDecoder.decode(jarFilePath, "utf-8");
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String packagePath = jarInfo[1].substring(1);
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JarFile jarFile = new JarFile(decodedJarFilePath);
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Enumeration<JarEntry> entrys = jarFile.entries();
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while (entrys.hasMoreElements()) {
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JarEntry jarEntry = entrys.nextElement();
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String entryName = jarEntry.getName();
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if (entryName.endsWith(".class")) {
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if (searchInChildPackage) {
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if (entryName.startsWith(packagePath)) {
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entryName = entryName.replace("/", ".").substring(0,
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entryName.lastIndexOf("."));
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classNames.add(entryName);
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}
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} else {
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int index = entryName.lastIndexOf("/");
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String entryPath;
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if (index != -1) {
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entryPath = entryName.substring(0, index);
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} else {
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entryPath = entryName;
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}
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if (entryPath.equals(packagePath)) {
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entryName = entryName.replace("/", ".").substring(0,
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entryName.lastIndexOf("."));
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classNames.add(entryName);
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}
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}
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}
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}
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jarFile.close();
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return classNames;
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}
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private List<String> getClassNameByJars(URL[] jarFiles, String packagePath,
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boolean searchInChildPackage) throws Exception {
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List<String> classNames = new ArrayList<String>();
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if (jarFiles != null) {
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for (int i = 0; i < jarFiles.length; i++) {
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URL jarFileUrl = jarFiles[i];
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String jarFilePath = jarFileUrl.getPath();
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if (jarFilePath.endsWith("classes/")) {
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continue;
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}
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String jarPath = jarFilePath + "!/" + packagePath;
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classNames.addAll(this.getClassNameByJar(jarPath,
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searchInChildPackage));
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}
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}
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return classNames;
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}
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public List<String> getClassNames(String packageName,
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boolean searchInchildPackage) {
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boolean searchInChildPackage) {
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try {
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List<String> classNames = null;
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ClassLoader classLoader = Thread.currentThread()
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.getContextClassLoader();
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String packagePath = packageName.replace(".", "/");
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URL packageUrl = classLoader.getResource(packagePath);
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if (packageUrl != null) {
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String protocol = packageUrl.getProtocol();
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if (protocol.equals("file")) {
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classNames = this.getClassNameByFile(packageName,
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packageUrl.getPath(), null, searchInchildPackage);
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} else if (protocol.equals("jar")) {
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classNames = this.getClassNameByJar(packageUrl.getPath(),
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searchInchildPackage);
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} else {
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classNames = null;
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List<String> classNames = new ArrayList<String>();
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URLClassLoader classLoader = (URLClassLoader) Thread
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.currentThread().getContextClassLoader();
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URL[] urls = classLoader.getURLs();
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for (URL url : urls) {
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if (url.getProtocol().equals("file")) {
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File file = new File(url.getFile());
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String root = file.getPath();
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if (file.isDirectory()) {
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classNames.addAll(this.getClassNamesFromDirectory(root,
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packageName, searchInChildPackage, file, true));
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} else if (file.getName().endsWith(".jar")) {
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classNames.addAll(this.getClassNameFromJar(packageName,
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searchInChildPackage, file));
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}
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}
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} else {
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classNames = this.getClassNameByJars(
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((URLClassLoader) classLoader).getURLs(), packagePath,
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searchInchildPackage);
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}
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return classNames;
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} catch (Exception e) {
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@ -133,4 +42,83 @@ public class ClassHelper {
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}
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}
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private List<String> getClassNamesFromDirectory(String root,
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String packageName, boolean searchInChildPackage, File directory,
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boolean continueSearch) {
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List<String> classNames = new ArrayList<String>();
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File[] files = directory.listFiles();
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for (File file : files) {
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if (file.isDirectory()) {
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if (searchInChildPackage || continueSearch) {
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boolean needToContinue = continueSearch;
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if (file.getPath().endsWith(packageName.replace(".", "/"))) {
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needToContinue = needToContinue & false;
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}
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classNames.addAll(this.getClassNamesFromDirectory(root,
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packageName, searchInChildPackage, file,
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needToContinue));
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}
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} else {
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if (file.getPath().endsWith(".class")) {
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String classFileName = file.getPath().replace(root + "/",
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"");
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if (classFileName.startsWith(packageName.replace(".", "/"))) {
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String className = classFileName.substring(0,
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classFileName.length() - ".class".length())
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.replace("/", ".");
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classNames.add(className);
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}
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}
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}
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}
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return classNames;
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}
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private List<String> getClassNameFromJar(String packageName,
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boolean searchInChildPackage, File file) {
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List<String> classNames = new ArrayList<String>();
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JarFile jarFile = null;
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try {
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jarFile = new JarFile(file);
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Enumeration<JarEntry> jarEntries = jarFile.entries();
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while (jarEntries.hasMoreElements()) {
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JarEntry jarEntry = jarEntries.nextElement();
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String entryName = jarEntry.getName();
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if (entryName.endsWith(".class")) {
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String packagePath = packageName.replace(".", "/") + "/";
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if (searchInChildPackage) {
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if (entryName.startsWith(packagePath)) {
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entryName = entryName.replace("/", ".").substring(
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0, entryName.lastIndexOf("."));
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classNames.add(entryName);
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}
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} else {
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int index = entryName.lastIndexOf("/");
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String entryPath;
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if (index != -1) {
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entryPath = entryName.substring(0, index);
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} else {
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entryPath = entryName;
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}
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if (entryPath.equals(packagePath)) {
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entryName = entryName.replace("/", ".").substring(
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0, entryName.lastIndexOf("."));
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classNames.add(entryName);
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}
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}
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}
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}
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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if (jarFile != null) {
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try {
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jarFile.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return classNames;
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}
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}
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@ -0,0 +1,20 @@
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package haflow.test;
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import haflow.utility.ClassHelper;
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import org.junit.Test;
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import java.util.List;
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public class ClassHelperTest {
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@Test
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public void test() {
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ClassHelper classHelper = new ClassHelper();
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List<String> classes = classHelper.getClassNames("haflow.module", true);
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if (classes != null) {
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for (String c : classes) {
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System.out.println(c);
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}
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}
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}
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}
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