BlueJ Testprojekt entfernt
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import schule.ngb.zm.Zeichenmaschine;
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import java.util.List;
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/**
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* Beschreiben Sie hier die Klasse BluejTest.
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*
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* @author (Ihr Name)
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* @version (eine Versionsnummer oder ein Datum)
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*/
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public class BluejTest extends Zeichenmaschine
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{
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public void setup() {
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if( !IN_BLUEJ ) {
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drawing.clear(schule.ngb.zm.Color.HGRED);
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} else {
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drawing.clear(schule.ngb.zm.Color.HGGREEN);
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}
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}
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public void listClasses() {
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// find all classes in classpath
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List<String> allClasses = ClasspathInspector.getAllKnownClassNames();
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System.out.printf("There are %s classes available in the classpath\n", allClasses.size());
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for (String clazz : allClasses) {
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if( clazz.contains("Boot") || clazz.contains("Main") ) {
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System.out.printf("%s\n", clazz);
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}
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}
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}
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}
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@ -1,283 +0,0 @@
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import java.io.File;
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import java.io.FilenameFilter;
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import java.io.Serializable;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Enumeration;
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import java.util.List;
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import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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/**
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* Find classes in the classpath (reads JARs and classpath folders).
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*
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* @author Pål Brattberg, brattberg@gmail.com
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* @see http://gist.github.com/pal
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*/
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@SuppressWarnings("unchecked")
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public class ClasspathInspector {
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static boolean DEBUG = false;
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public static List<String> getAllKnownClassNames() {
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List<String> classNames = new ArrayList<String>();
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List<File> classLocations = getClassLocationsForCurrentClasspath();
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for (File file : classLocations) {
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classNames.addAll(getClassNamesFromPath(file));
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}
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return classNames;
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}
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public static List<Class> getAllKnownClasses() {
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List<Class> classFiles = new ArrayList<Class>();
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List<File> classLocations = getClassLocationsForCurrentClasspath();
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for (File file : classLocations) {
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classFiles.addAll(getClassesFromPath(file));
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}
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return classFiles;
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}
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public static List<Class> getMatchingClasses(Class interfaceOrSuperclass) {
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List<Class> matchingClasses = new ArrayList<Class>();
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List<Class> classes = getAllKnownClasses();
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log("checking %s classes", classes.size());
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for (Class clazz : classes) {
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if (interfaceOrSuperclass.isAssignableFrom(clazz)) {
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matchingClasses.add(clazz);
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log("class %s is assignable from %s", interfaceOrSuperclass, clazz);
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}
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}
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return matchingClasses;
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}
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public static List<Class> getMatchingClasses(String validPackagePrefix, Class interfaceOrSuperclass) {
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throw new IllegalStateException("Not yet implemented!");
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}
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public static List<Class> getMatchingClasses(String validPackagePrefix) {
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throw new IllegalStateException("Not yet implemented!");
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}
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private static Collection<? extends Class> getClassesFromPath(File path) {
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if (path.isDirectory()) {
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return getClassesFromDirectory(path);
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} else {
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return getClassesFromJarFile(path);
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}
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}
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private static Collection<String> getClassNamesFromPath(File path) {
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if (path.isDirectory()) {
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return getClassNamesFromDirectory(path);
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} else {
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return getClassNamesFromJarFile(path);
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}
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}
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private static String fromFileToClassName(final String fileName) {
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return fileName.substring(0, fileName.length() - 6).replaceAll("/|\\\\", "\\.");
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}
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private static List<Class> getClassesFromJarFile(File path) {
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List<Class> classes = new ArrayList<Class>();
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log("getClassesFromJarFile: Getting classes for " + path);
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try {
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if (path.canRead()) {
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JarFile jar = new JarFile(path);
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Enumeration<JarEntry> en = jar.entries();
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while (en.hasMoreElements()) {
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JarEntry entry = en.nextElement();
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if (entry.getName().endsWith("class")) {
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String className = fromFileToClassName(entry.getName());
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log("\tgetClassesFromJarFile: found " + className);
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Class claz = Class.forName(className);
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classes.add(claz);
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}
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}
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}
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} catch (Exception e) {
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throw new RuntimeException("Failed to read classes from jar file: " + path, e);
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}
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return classes;
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}
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private static List<String> getClassNamesFromJarFile(File path) {
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List<String> classes = new ArrayList<>();
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log("getClassNamesFromJarFile: Getting classes for " + path);
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try {
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if (path.canRead()) {
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JarFile jar = new JarFile(path);
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Enumeration<JarEntry> en = jar.entries();
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while (en.hasMoreElements()) {
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JarEntry entry = en.nextElement();
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if (entry.getName().endsWith("class")) {
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String className = fromFileToClassName(entry.getName());
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classes.add(className);
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log("\tgetClassesFromJarFile: found " + className);
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}
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}
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}
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} catch (Exception e) {
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throw new RuntimeException("Failed to read classnames from jar file: " + path, e);
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}
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return classes;
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}
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private static List<Class> getClassesFromDirectory(File path) {
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List<Class> classes = new ArrayList<Class>();
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log("getClassesFromDirectory: Getting classes for " + path);
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// get jar files from top-level directory
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List<File> jarFiles = listFiles(path, new FilenameFilter() {
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@Override
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public boolean accept(File dir, String name) {
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return name.endsWith(".jar");
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}
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}, false);
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for (File file : jarFiles) {
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classes.addAll(getClassesFromJarFile(file));
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}
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// get all class-files
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List<File> classFiles = listFiles(path, new FilenameFilter() {
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@Override
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public boolean accept(File dir, String name) {
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return name.endsWith(".class");
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}
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}, true);
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// List<URL> urlList = new ArrayList<URL>();
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// List<String> classNameList = new ArrayList<String>();
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int substringBeginIndex = path.getAbsolutePath().length() + 1;
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for (File classfile : classFiles) {
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String className = classfile.getAbsolutePath().substring(substringBeginIndex);
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className = fromFileToClassName(className);
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log("Found class %s in path %s: ", className, path);
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try {
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classes.add(Class.forName(className));
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} catch (Throwable e) {
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log("Couldn't create class %s. %s: ", className, e);
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}
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}
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return classes;
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}
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private static List<String> getClassNamesFromDirectory(File path) {
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List<String> classes = new ArrayList<>();
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log("getClassNamesFromDirectory: Getting classes for " + path);
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// get jar files from top-level directory
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List<File> jarFiles = listFiles(path, new FilenameFilter() {
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@Override
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public boolean accept(File dir, String name) {
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return name.endsWith(".jar");
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}
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}, false);
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for (File file : jarFiles) {
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classes.addAll(getClassNamesFromJarFile(file));
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}
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// get all class-files
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List<File> classFiles = listFiles(path, new FilenameFilter() {
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@Override
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public boolean accept(File dir, String name) {
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return name.endsWith(".class");
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}
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}, true);
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// List<URL> urlList = new ArrayList<URL>();
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// List<String> classNameList = new ArrayList<String>();
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int substringBeginIndex = path.getAbsolutePath().length() + 1;
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for (File classfile : classFiles) {
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String className = classfile.getAbsolutePath().substring(substringBeginIndex);
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className = fromFileToClassName(className);
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log("Found class %s in path %s: ", className, path);
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classes.add(className);
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}
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return classes;
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}
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private static List<File> listFiles(File directory, FilenameFilter filter, boolean recurse) {
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List<File> files = new ArrayList<File>();
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File[] entries = directory.listFiles();
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// Go over entries
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for (File entry : entries) {
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// If there is no filter or the filter accepts the
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// file / directory, add it to the list
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if (filter == null || filter.accept(directory, entry.getName())) {
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files.add(entry);
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}
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// If the file is a directory and the recurse flag
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// is set, recurse into the directory
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if (recurse && entry.isDirectory()) {
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files.addAll(listFiles(entry, filter, recurse));
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}
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}
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// Return collection of files
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return files;
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}
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public static List<File> getClassLocationsForCurrentClasspath() {
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List<File> urls = new ArrayList<File>();
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String javaClassPath = System.getProperty("java.class.path");
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if (javaClassPath != null) {
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for (String path : javaClassPath.split(File.pathSeparator)) {
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urls.add(new File(path));
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}
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}
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return urls;
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}
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// todo: this is only partial, probably
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public static URL normalize(URL url) throws MalformedURLException {
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String spec = url.getFile();
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// get url base - remove everything after ".jar!/??" , if exists
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final int i = spec.indexOf("!/");
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if (i != -1) {
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spec = spec.substring(0, spec.indexOf("!/"));
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}
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// uppercase windows drive
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url = new URL(url, spec);
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final String file = url.getFile();
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final int i1 = file.indexOf(':');
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if (i1 != -1) {
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String drive = file.substring(i1 - 1, 2).toUpperCase();
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url = new URL(url, file.substring(0, i1 - 1) + drive + file.substring(i1));
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}
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return url;
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}
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private static void log(String pattern, final Object... args) {
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if (DEBUG)
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System.out.printf(pattern + "\n", args);
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}
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public static void main(String[] args) {
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// find all classes in classpath
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List<Class> allClasses = ClasspathInspector.getAllKnownClasses();
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System.out.printf("There are %s classes available in the classpath\n", allClasses.size());
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// find all classes that implement/subclass an interface/superclass
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List<Class> serializableClasses = ClasspathInspector.getMatchingClasses(Serializable.class);
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for (Class clazz : serializableClasses) {
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System.out.printf("%s is Serializable\n", clazz);
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}
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}
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}
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@ -1,42 +0,0 @@
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#BlueJ package file
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dependency1.from=BluejTest
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dependency1.to=ClasspathInspector
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dependency1.type=UsesDependency
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editor.fx.0.height=0
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editor.fx.0.width=0
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editor.fx.0.x=0
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editor.fx.0.y=0
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objectbench.height=94
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objectbench.width=776
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package.divider.horizontal=0.6
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package.divider.vertical=0.8305369127516778
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package.editor.height=488
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package.editor.width=661
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package.editor.x=374
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package.editor.y=158
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package.frame.height=660
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package.frame.width=800
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package.numDependencies=1
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package.numTargets=2
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package.showExtends=true
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package.showUses=true
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project.charset=UTF-8
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readme.height=60
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readme.name=@README
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readme.width=48
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readme.x=10
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readme.y=10
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target1.height=70
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target1.name=BluejTest
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target1.showInterface=false
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target1.type=ClassTarget
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target1.width=120
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target1.x=70
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target1.y=10
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target2.height=70
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target2.name=ClasspathInspector
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target2.showInterface=false
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target2.type=ClassTarget
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target2.width=130
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target2.x=380
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target2.y=30
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