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package com.sun.enterprise.tools.verifier.apiscan.classfile;
import static com.sun.corba.ee.org.objectweb.asm.Opcodes.*;
import com.sun.corba.ee.org.objectweb.asm.ClassReader;
import com.sun.corba.ee.org.objectweb.asm.MethodVisitor;
import com.sun.corba.ee.org.objectweb.asm.commons.EmptyVisitor;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import java.util.logging.Logger;
/**
* @author Sanjeeb.Sahoo@Sun.COM
*/
class ASMClassFile implements ClassFile {
private static Logger logger = Logger.getLogger("apiscan.classfile"); // NOI18N
private String externalName;
private String internalName;
private String packageName;
private ClassReader cr;
private Set<Method> methods = new HashSet<Method>();
private String internalNameOfSuperClass;
private String[] internalNamesOfInterfaces;
private int access;
public boolean isInterface() {
return (access & ACC_INTERFACE) == ACC_INTERFACE;
}
public Method getMethod(MethodRef methodRef) {
for (Method m : methods) {
if (m.getName().equals(methodRef.getName()) &&
m.getDescriptor().equals(methodRef.getDescriptor())) {
return m;
}
}
return null;
}
public Collection<Method> getMethods() {
return methods;
}
public ASMClassFile(InputStream is)
throws IOException {
cr = new ClassReader(is);
cr.accept(new MyVisitor(this), true);
is.close();
}
public Collection<String> getAllReferencedClassNames() {
throw new UnsupportedOperationException();
}
public Collection getAllReferencedClassNamesInInternalForm() {
throw new UnsupportedOperationException();
}
public String getName() {
return externalName;
}
public String getInternalName() {
return internalName;
}
public String getPackageName() {
return packageName;
}
public String getNameOfSuperClass() {
return Util.convertToExternalClassName(internalNameOfSuperClass);
}
public String getInternalNameOfSuperClass() {
return internalNameOfSuperClass;
}
public String[] getNamesOfInterfaces() {
String[] result = new String[internalNamesOfInterfaces.length];
for(int i = 0; i< internalNamesOfInterfaces.length; ++i){
result[i] = Util.convertToExternalClassName(internalNamesOfInterfaces[i]);
}
return result;
}
public String[] getInternalNamesOfInterfaces() {
return internalNamesOfInterfaces;
}
@Override public String toString() {
StringBuilder sb = new StringBuilder(decodeAccessFlag(access)+ externalName);
if(internalNameOfSuperClass!=null) sb.append(" extends "+getNameOfSuperClass()); // NOI18N
if(internalNamesOfInterfaces.length>0){
sb.append(" implements "); // NOI18N
for(String s : getNamesOfInterfaces()) sb.append(s);
}
sb.append("{\n"); // NOI18N
for(Method m : methods){
sb.append(m).append("\n"); // NOI18N
}
sb.append("}"); // NOI18N
return sb.toString();
}
private static class MyVisitor extends EmptyVisitor {
ASMClassFile cf;
public MyVisitor(ASMClassFile cf) {
this.cf = cf;
}
@Override public void visit(
int version, int access, String name, String signature,
String superName, String[] interfaces) {
logger.entering(
"com.sun.enterprise.tools.verifier.apiscan.classfile.ASMClassFile$MyVisitor", "visit", // NOI18N
new Object[]{version, access, name, signature});
cf.internalName = name;
cf.externalName = Util.convertToExternalClassName(name);
cf.internalNameOfSuperClass = superName;
cf.internalNamesOfInterfaces = interfaces;
int index = name.lastIndexOf('/');
if (index < 0)
cf.packageName = "";
else
cf.packageName = name.substring(0, index);
cf.access = access;
}
@Override public MethodVisitor visitMethod(
int access, String name, String desc, String signature,
String[] exceptions) {
logger.entering(
"com.sun.enterprise.tools.verifier.apiscan.classfile.ASMClassFile$MyVisitor", "visitMethod", // NOI18N
new Object[]{access, name, signature, desc});
ASMMethod method = new ASMMethod(cf, name, desc, access,
signature, exceptions);
cf.methods.add(method);
return method;
}
@Override public void visitEnd() {
logger.entering("ASMClassFile$MyVisitor", "visitEnd", // NOI18N
new Object[]{cf.getName()});
}
}
public static String decodeAccessFlag(int access) {
StringBuilder result = new StringBuilder("");
if ((access & ACC_PRIVATE) == ACC_PRIVATE) {
result.append("private "); // NOI18N
} else if ((access & ACC_PROTECTED) == ACC_PROTECTED) {
result.append("protected "); // NOI18N
} else if ((access & ACC_PUBLIC) == ACC_PUBLIC) {
result.append("public "); // NOI18N
}
if ((access & ACC_ABSTRACT) == ACC_ABSTRACT) {
result.append("abstract "); // NOI18N
} else if ((access & ACC_FINAL) == ACC_FINAL) {
result.append("final "); // NOI18N
}
if ((access & ACC_INTERFACE) == ACC_INTERFACE) {
result.append("interface "); // NOI18N
} else {
result.append("class "); // NOI18N
}
return result.toString();
}
} |