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| package net.sourceforge.pmd.typeresolution; |
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| import net.sourceforge.pmd.typeresolution.visitors.PMDASMVisitor; |
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| import org.objectweb.asm.ClassReader; |
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| import org.objectweb.asm.ClassWriter; |
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| import java.io.IOException; |
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| import java.util.HashMap; |
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| import java.util.HashSet; |
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| import java.util.List; |
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| import java.util.Map; |
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| import java.util.Set; |
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| |
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| public class PMDASMClassLoader extends ClassLoader { |
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| public PMDASMClassLoader() {
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| } |
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| public synchronized Class loadClass(String name) throws ClassNotFoundException {
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| return defineClass(name);
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| } |
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| private Map importedClasses = new HashMap(); |
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| private Set dontBother = new HashSet(); |
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| public Map getImportedClasses(String className) {
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| Map ret = (Map) importedClasses.get(className);
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| return ret == null ? new HashMap() : ret;
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| } |
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| private Class defineClass(String name) throws ClassNotFoundException {
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| if (dontBother.contains(name)) {
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| throw new ClassNotFoundException(name);
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| } |
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| try {
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| if (name.startsWith("java.")) {
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| return Class.forName(name);
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| } |
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| if (importedClasses.containsKey(name)) {
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| if (super.findLoadedClass(name) != null) {
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| return super.findLoadedClass(name);
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| } |
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| } |
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| ClassReader reader = new ClassReader(getResourceAsStream(name.replace('.', '/') + ".class"));
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| PMDASMVisitor asmVisitor = new PMDASMVisitor();
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| reader.accept(asmVisitor, 0);
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| List inner = asmVisitor.getInnerClasses();
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| if (inner != null && !inner.isEmpty()) {
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| for (int ix = 0; ix < inner.size(); ix++) {
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| String str = (String) inner.get(ix);
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| ClassReader innerReader = new ClassReader(getResourceAsStream(str.replace('.', '/') + ".class"));
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| innerReader.accept(asmVisitor, 0);
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| } |
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| } |
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| importedClasses.put(name, asmVisitor.getPackages());
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| ClassWriter writer = new ClassWriter(ClassWriter.COMPUTE_MAXS);
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| reader.accept(writer, 0);
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| byte[] byteCode = writer.toByteArray();
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| return defineClass(name, byteCode, 0, byteCode.length);
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| } catch (ClassNotFoundException e) { |
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| dontBother.add(name);
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| throw e;
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| } catch (IOException e) { |
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| dontBother.add(name);
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| throw new ClassNotFoundException(name, e);
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| } |
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| } |
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| } |