AppletFriendlyXMLEncoder.java
| Index Score | ||
|---|---|---|
 |
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org.microplatform.web.applet |
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 |
JGraph |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| JAVA0034 | JAVA0034 Missing braces in if statement |  |
| LINE_COMMENT | Number of line comments | |
| PARAMS | Number of formal parameter declarations | |
| EXEC_COMMENTS | Comments in executable code | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| CYCLOMATIC | Cyclomatic complexity | |
| COMPARISONS | Number of comparison operators | |
| RETURNS | Number of return points from functions | |
| UNIQUE_OPERANDS | Number of unique operands | |
| PROGRAM_LENGTH | Halstead program length | |
| OPERANDS | Number of operands | |
| OPERATORS | Number of operators | |
| SIZE | Size of the file in bytes | |
| LOOPS | Number of loops | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| EXITS | Procedure exits | |
| ELOC | Effective lines of code | |
| JAVA0166 | JAVA0166 Generic exception caught | |
| LOC | Lines of code | |
| LINES | Number of lines in the source file | |
| LOGICAL_LINES | Number of statements | |
| BLOCKS | Number of blocks | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
| JAVA0254 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0118 | JAVA0118 Missing javadoc: type 'type' | |
| COMMENTS | Comment lines | |
| FUNCTIONS | Number of function declarations | |
| JAVA0117 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0265 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| NEST_DEPTH | Maximum nesting depth | |
| UNIQUE_OPERATORS | Number of unique operators | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0173 | JAVA0173 Unused method parameter | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0267 | JAVA0267 Use of System.err | |
| JAVA0110 | JAVA0110 Incorrect javadoc: no @return tag | |
package org.microplatform.web.applet;
import java.awt.Color;
import java.awt.Font;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.beans.BeanInfo;
import java.beans.DefaultPersistenceDelegate;
import java.beans.Encoder;
import java.beans.EventSetDescriptor;
import java.beans.Expression;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PersistenceDelegate;
import java.beans.PropertyDescriptor;
import java.beans.Statement;
import java.beans.XMLEncoder;
import java.io.OutputStream;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.AbstractCollection;
import java.util.AbstractList;
import java.util.AbstractMap;
import java.util.AbstractSet;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Dictionary;
import java.util.EventListener;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeSet;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.undo.UndoableEditSupport;
/**
* We set persistence delegates where the no argument constructor can't be used
* Warning, the java bug #4741757 is really annoying there when we want to
* deploy as unsigned applet or web start app because it breaks the security
* sandbox. We work arround that bug by taking inspiration from the great Violet
* UML code form Cay Horstmann TODO: use a simpler solution (new
* DefaultPersistenceDelegate(new String[]...)) when Java mustang will be the
* norm or when the fix is retrofited to most of clients.
*
* @author Raphael Valyi (with parts copied from Sun).
*
*/
public class AppletFriendlyXMLEncoder extends XMLEncoder {
protected static AppletFriendlyPersistenceDelegate delegate1 = new AppletFriendlyPersistenceDelegate();
protected static AppletFriendlyDefaultPersistenceDelegate delegate2 = new AppletFriendlyDefaultPersistenceDelegate();
public AppletFriendlyXMLEncoder(OutputStream out) {
super(out);
}
public static Class typeToClass(Class type) {
return type;// TODO: the following is the code Sun code for jre > 1.4. I
// don't know what is the benefit...
/*
* return type.isPrimitive() ? ObjectHandler.typeNameToClass(type
* .getName()) : type;
*/
}
static boolean equals(Object o1, Object o2) {
return (o1 == null) ? (o2 == null) : o1.equals(o2);
}
/**
* Should you have some persistence delegates, you can register them inside
* that method But warning, the bug #4741757 is lurking behind you.
*/
public PersistenceDelegate getPersistenceDelegate(Class type) {
// will manage quickly with the super class without requesting any
// BeanInfo:
if (type == null)
return super.getPersistenceDelegate(type);
if (type.isArray())
return super.getPersistenceDelegate(type);
if (isPrimitive(type))
return super.getPersistenceDelegate(type);
if (type == Object.class)
return delegate1;
// Now there are some common types we know we will need a persistence
// delegate
// those are present in java.beans.Metada (f#ck!) but aren't public so
// we copied them
// here again:
if (type == String.class)
return new java_lang_String_PersistenceDelegate();
if (type == Class.class)
return new java_lang_Class_PersistenceDelegate();
if (type == Map.class || type == AbstractMap.class
|| type == Hashtable.class) //TODO this won't handle the cell
// user object properly, why??
return new java_util_Map_PersistenceDelegate();
if (type == List.class || type == AbstractList.class)
return new java_util_List_PersistenceDelegate();
if (type == Collection.class || type == AbstractCollection.class
|| type == HashSet.class || type == AbstractSet.class
|| type == TreeSet.class)// sure?
return new java_util_Collection_PersistenceDelegate();
if (type == DefaultMutableTreeNode.class)
return new javax_swing_tree_DefaultMutableTreeNode_PersistenceDelegate();
if (type == Color.class)
return new java_awt_Color_PersistenceDelegate();
if (type == Point2D.Double.class)
return new java_awt_geom_Point2D$Double_PersistenceDelegate();
if (type == Rectangle2D.class)
return new java_awt_geom_Rectangle2D_PersistenceDelegate();
if (type == Font.class)
return new java_awt_Font_PersistenceDelegate();
if (isJRETypeOKWithDefaultDelegate(type))// OK, a JRE type that use
// to work with the
// DefaultPersistenceDelegat
// from sun
return delegate1;
// now that the boring part: the BeanInfo of the following will be
// requested
// they are two ways of avoiding it that: lazily load the BeanInfo you
// are
// likely to encounter during the Startup or provide your own delegate
// earlier.
if (type.getName().indexOf(".util") > 0)// almost all collections have
// specialized persistence
// delegates
return super.getPersistenceDelegate(type);
if (type.getName().indexOf(".awt") > 0)// you could try to provide your
// own delegates for awt as they
// are few
return super.getPersistenceDelegate(type);
if (type.getName().indexOf(".swing") > 0)// swing hardely complies
// with
// DefaultPersistenceDelegate
return super.getPersistenceDelegate(type);
if (type.getName().indexOf(".beans") > 0)// hopefully you won't have
// many
return super.getPersistenceDelegate(type);
if (type.getName().indexOf(".reflect") > 0)// hopefully you won't have
// many
return super.getPersistenceDelegate(type);
// else our smart persistence delegate will avoid the BeanInfo lookup
return delegate1;
}
/**
* Hook for subclassers: according to the types you may encounter in the
* bean you want to serialize, you may subclass it and tells that other
* types from the JRE can do well with the
* AppletFriendlyPersistenceDelegate. Basically the fastest way to know that
* is to test if it works for your type (it will work every time
* java.beans.DefaultPersistenceDelagate would have worked).
*
* @param type
*/
protected boolean isJRETypeOKWithDefaultDelegate(Class type) {
if (type == UndoableEditSupport.class || type == Dictionary.class
|| type == AbstractSet.class || type == Point2D.class
|| type == Rectangle2D.class || type == ArrayList.class
|| type == Point2D.class || type == Rectangle2D.class
|| type == Object.class || type == ArrayList.class)
return true;
return false;
}
/**
* Hook for subclassers. This where to put custom delegate for types for
* your won hierarchy if they don't respect the javabeans conventions and
* can't be serialized using the DefaultPersistenceDelegate as such.
*
* @param type
* @return
*/
protected PersistenceDelegate getDelegateForOurType(Class type) {
return delegate1;// by default we respect javabeans conventions for
// our types and we don't need any custom delegate.
}
/**
* Our DefaultPersistenceDelegate delegate
*
* @author rvalyi
*/
public static class AppletFriendlyDefaultPersistenceDelegate extends
DefaultPersistenceDelegate {
public Expression instantiateBreaker(Object oldInstance, Encoder out) {
return this.instantiate(oldInstance, out);
}
protected boolean mutatesToBreaker(Object oldInstance,
Object newInstance) {
return this.mutatesTo(oldInstance, newInstance);
}
protected void initialize(Class type, Object oldInstance,
Object newInstance, Encoder out) {
delegate1.initialize(type, oldInstance, newInstance, out);
}
protected void initializeBreaker(Class type, Object oldInstance,
Object newInstance, Encoder out) {
super.initialize(type, oldInstance, newInstance, out);
}
static void invokeStatementAppletFirendly(Object instance, String methodName,
Object[] args, Encoder out) {
out.writeStatement(new Statement(instance, methodName, args));
}
}
/**
* We can't subclass only the DefaultPersistenceDelegatev because we will
* need to access the initialisze method of PersistenceDelegate and this
* method is protected. We would then have to acces it via super.initialize,
* but we don't want that because it would force the BeanInfo lookup in the
* DefaultPersistenceDelegate class! On the contrary, if we decide to
* subclass only PersistenceDelegate, then we still want some of the
* conveninent default method of the defaultPersistenceDelegate, so we use a
* defaultPersistenceDelegate delegate (yes, I said that!) to do that.
*
* @author Raphael Valyi
*/
public static class AppletFriendlyPersistenceDelegate extends
PersistenceDelegate {
protected Expression instantiate(Object oldInstance, Encoder out) {
return delegate2.instantiateBreaker(oldInstance, out);
}
protected boolean mutatesTo(Object oldInstance, Object newInstance) {
return delegate2.mutatesToBreaker(oldInstance, newInstance);
}
public void writeObject(Object oldInstance, Encoder out) {
delegate2.writeObject(oldInstance, out);
}
/**
* Conform copy of java.beans.DefaultPersistenceDelegate's method
*/
public void initialize(Class type, Object oldInstance,
Object newInstance, Encoder out) {
super.initialize(type, oldInstance, newInstance, out);
if (oldInstance.getClass() == type) {
initBean(type, oldInstance, newInstance, out);
}
}
/**
* Conform copy of java.beans.DefaultPersistenceDelegate's method
*
* @param type
* @param oldInstance
* @param newInstance
* @param out
*/
public void initializeBreaker(Class type, Object oldInstance,
Object newInstance, Encoder out) {
this.initialize(type, oldInstance, newInstance, out);
}
/**
* Conform copy of java.beans.DefaultPersistenceDelegate's method
*
* @param instance
* @param methodName
* @param args
* @param out
*/
static void invokeStatement(Object instance, String methodName,
Object[] args, Encoder out) {
out.writeStatement(new Statement(instance, methodName, args));
}
/**
* Conform copy of java.beans.DefaultPersistenceDelegate's method except
* we use the IGNORE_ALL_BEANINFO flag
*
* @param type
* @param oldInstance
* @param newInstance
* @param out
*/
private void initBean(Class type, Object oldInstance,
Object newInstance, Encoder out) {
// System.out.println("initBean: " + oldInstance);
BeanInfo info = null;
try {
info = Introspector.getBeanInfo(type,
Introspector.IGNORE_ALL_BEANINFO);
} catch (IntrospectionException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
return;
}
// Properties
PropertyDescriptor[] propertyDescriptors = info
.getPropertyDescriptors();
for (int i = 0; i < propertyDescriptors.length; ++i) {
try {
doProperty(type, propertyDescriptors[i], oldInstance,
newInstance, out);
} catch (Exception e) {
out.getExceptionListener().exceptionThrown(e);
}
}
if (!java.awt.Component.class.isAssignableFrom(type)) {
return; // Just handle the listeners of Components for now.
}
EventSetDescriptor[] eventSetDescriptors = info
.getEventSetDescriptors();
for (int e = 0; e < eventSetDescriptors.length; e++) {
EventSetDescriptor d = eventSetDescriptors[e];
Class listenerType = d.getListenerType();
// The ComponentListener is added automatically, when
// Contatiner:add is called on the parent.
if (listenerType == java.awt.event.ComponentListener.class) {
continue;
}
// JMenuItems have a change listener added to them in
// their "add" methods to enable accessibility support -
// see the add method in JMenuItem for details. We cannot
// instantiate this instance as it is a private inner class
// and do not need to do this anyway since it will be created
// and installed by the "add" method. Special case this for now,
// ignoring all change listeners on JMenuItems.
if (listenerType == javax.swing.event.ChangeListener.class
&& type == javax.swing.JMenuItem.class) {
continue;
}
EventListener[] oldL = new EventListener[0];
EventListener[] newL = new EventListener[0];
try {
Method m = d.getGetListenerMethod();
oldL = (EventListener[]) m.invoke(oldInstance,
new Object[] {});
newL = (EventListener[]) m.invoke(newInstance,
new Object[] {});
} catch (Throwable e2) {
try {
Method m = type.getMethod("getListeners",
new Class[] { Class.class });
oldL = (EventListener[]) m.invoke(oldInstance,
new Object[] { listenerType });
newL = (EventListener[]) m.invoke(newInstance,
new Object[] { listenerType });
} catch (Exception e3) {
return;
}
}
// Asssume the listeners are in the same order and that there
// are no gaps.
// Eventually, this may need to do true differencing.
String addListenerMethodName = d.getAddListenerMethod()
.getName();
for (int i = newL.length; i < oldL.length; i++) {
// System.out.println("Adding listener: " +
// addListenerMethodName + oldL[i]);
invokeStatement(oldInstance, addListenerMethodName,
new Object[] { oldL[i] }, out);
}
String removeListenerMethodName = d.getRemoveListenerMethod()
.getName();
for (int i = oldL.length; i < newL.length; i++) {
invokeStatement(oldInstance, removeListenerMethodName,
new Object[] { oldL[i] }, out);
}
}
}
/**
* Conform copy of java.beans.DefaultPersistenceDelegate's method
*
* @param type
* @param pd
* @param oldInstance
* @param newInstance
* @param out
* @throws Exception
*/
private void doProperty(Class type, PropertyDescriptor pd,
Object oldInstance, Object newInstance, Encoder out)
throws Exception {
Method getter = pd.getReadMethod();
Method setter = pd.getWriteMethod();
if (getter != null && setter != null && !isTransient(type, pd)) {
Expression oldGetExp = new Expression(oldInstance, getter
.getName(), new Object[] {});
Expression newGetExp = new Expression(newInstance, getter
.getName(), new Object[] {});
Object oldValue = oldGetExp.getValue();
Object newValue = newGetExp.getValue();
out.writeExpression(oldGetExp);
if (!AppletFriendlyXMLEncoder.equals(newValue, out
.get(oldValue))) {
// Search for a static constant with this value;
Object e = pd.getValue("enumerationValues");
if (e instanceof Object[] && Array.getLength(e) % 3 == 0) {
Object[] a = (Object[]) e;
for (int i = 0; i < a.length; i = i + 3) {
try {
Field f = type.getField((String) a[i]);
if (f.get(null).equals(oldValue)) {
out.remove(oldValue);
out.writeExpression(new Expression(
oldValue, f, "get",
new Object[] { null }));
}
} catch (Exception ex) {
}
}
}
invokeStatement(oldInstance, setter.getName(),
new Object[] { oldValue }, out);
}
}
}
/**
* Conform copy of java.beans.DefaultPersistenceDelegate's method except
* we use the IGNORE_ALL_BEANINFO flag
*
* @param type
* @param pd
* @return
*/
private boolean isTransient(Class type, PropertyDescriptor pd) {
if (type == null) {
return false;
}
String pName = pd.getName();
BeanInfo info = null;
try {
info = Introspector.getBeanInfo(type,
Introspector.IGNORE_ALL_BEANINFO);
} catch (IntrospectionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return false;
}
PropertyDescriptor[] propertyDescriptors = info
.getPropertyDescriptors();
for (int i = 0; i < propertyDescriptors.length; ++i) {
PropertyDescriptor pd2 = propertyDescriptors[i];
if (pName.equals(pd2.getName())) {
Object value = pd2.getValue("transient");
if (value != null) {
return Boolean.TRUE.equals(value);
}
}
}
return isTransient(type.getSuperclass(), pd);
}
}
public static boolean isPrimitive(Class type) {
return primitiveTypeFor(type) != null;
}
public static Class primitiveTypeFor(Class wrapper) {
if (wrapper == Boolean.class)
return Boolean.TYPE;
if (wrapper == Byte.class)
return Byte.TYPE;
if (wrapper == Character.class)
return Character.TYPE;
if (wrapper == Short.class)
return Short.TYPE;
if (wrapper == Integer.class)
return Integer.TYPE;
if (wrapper == Long.class)
return Long.TYPE;
if (wrapper == Float.class)
return Float.TYPE;
if (wrapper == Double.class)
return Double.TYPE;
if (wrapper == Void.class)
return Void.TYPE;
return null;
}
public static class java_lang_String_PersistenceDelegate extends
PersistenceDelegate {
protected Expression instantiate(Object oldInstance, Encoder out) {
return null;
}
public void writeObject(Object oldInstance, Encoder out) {
// System.out.println("NullPersistenceDelegate:writeObject " +
// oldInstance);
}
}
public static class java_lang_Class_PersistenceDelegate extends
PersistenceDelegate {
protected Expression instantiate(Object oldInstance, Encoder out) {
Class c = (Class) oldInstance;
// As of 1.3 it is not possible to call Class.forName("int"),
// so we have to generate different code for primitive types.
// This is needed for arrays whose subtype may be primitive.
if (c.isPrimitive()) {
Field field = null;
try {
field = typeToClass(c).getDeclaredField("TYPE");
} catch (NoSuchFieldException ex) {
System.err.println("Unknown primitive type: " + c);
}
return new Expression(oldInstance, field, "get",
new Object[] { null });
} else if (oldInstance == String.class) {
return new Expression(oldInstance, "", "getClass",
new Object[] {});
} else if (oldInstance == Class.class) {
return new Expression(oldInstance, String.class, "getClass",
new Object[] {});
} else {
return new Expression(oldInstance, Class.class, "forName",
new Object[] { c.getName() });
}
}
}
public static class java_util_Map_PersistenceDelegate extends
AppletFriendlyDefaultPersistenceDelegate {
public void initialize(Class type, Object oldInstance,
Object newInstance, Encoder out) {
// System.out.println("Initializing: " + newInstance);
java.util.Map oldMap = (java.util.Map) oldInstance;
java.util.Map newMap = (java.util.Map) newInstance;
// Remove the new elements.
// Do this first otherwise we undo the adding work.
if (newMap != null) {
java.util.Iterator newKeys = newMap.keySet().iterator();
while (newKeys.hasNext()) {
Object newKey = newKeys.next();
// PENDING: This "key" is not in the right environment.
if (!oldMap.containsKey(newKey)) {
invokeStatementAppletFirendly(oldInstance, "remove",
new Object[] { newKey }, out);
}
}
}
// Add the new elements.
java.util.Iterator oldKeys = oldMap.keySet().iterator();
while (oldKeys.hasNext()) {
Object oldKey = oldKeys.next();
Expression oldGetExp = new Expression(oldInstance, "get",
new Object[] { oldKey });
// Pending: should use newKey.
Expression newGetExp = new Expression(newInstance, "get",
new Object[] { oldKey });
try {
Object oldValue = oldGetExp.getValue();
Object newValue = newGetExp.getValue();
out.writeExpression(oldGetExp);
if (!AppletFriendlyXMLEncoder.equals(newValue, out
.get(oldValue))) {
invokeStatementAppletFirendly(oldInstance, "put", new Object[] {
oldKey, oldValue }, out);
}
} catch (Exception e) {
out.getExceptionListener().exceptionThrown(e);
}
}
}
/*
* public void initialize(Class type, Object oldInstance, Object
* newInstance, Encoder out) { // System.out.println("Initializing: " +
* newInstance); java.util.Map oldMap = (java.util.Map) oldInstance;
* java.util.Map newMap = (java.util.Map) newInstance; // Remove the new
* elements. // Do this first otherwise we undo the adding work. if
* (newMap != null) { Object newKey; Iterator it =
* newMap.keySet().iterator(); while (it.hasNext()) { newKey =
* it.next(); // PENDING: This "key" is not in the right environment. if
* (!oldMap.containsKey(newKey)) { invokeStatement(oldInstance,
* "remove", new Object[] { newKey }, out); } } } // Add the new
* elements. Object oldKey; Iterator it = oldMap.keySet().iterator();
* while (it.hasNext()) { oldKey = it.next(); Expression oldGetExp = new
* Expression(oldInstance, "get", new Object[] { oldKey }); // Pending:
* should use newKey. Expression newGetExp = new Expression(newInstance,
* "get", new Object[] { oldKey }); try { Object oldValue =
* oldGetExp.getValue(); Object newValue = newGetExp.getValue();
* out.writeExpression(oldGetExp); if
* (!AppletFriendlyXMLEncoder.equals(newValue, out .get(oldValue))) {
* invokeStatement(oldInstance, "put", new Object[] { oldKey, oldValue },
* out); } else if ((newValue == null) && !newMap.containsKey(oldKey)) { //
* put oldValue(=null?) if oldKey is absent in newMap
* invokeStatement(oldInstance, "put", new Object[] { oldKey, oldValue },
* out); } } catch (Exception e) {
* out.getExceptionListener().exceptionThrown(e); } } }
*/
}
public static class java_util_List_PersistenceDelegate extends
AppletFriendlyDefaultPersistenceDelegate {
public void initialize(Class type, Object oldInstance,
Object newInstance, Encoder out) {
java.util.List oldO = (java.util.List) oldInstance;
java.util.List newO = (java.util.List) newInstance;
int oldSize = oldO.size();
int newSize = (newO == null) ? 0 : newO.size();
if (oldSize < newSize) {
invokeStatementAppletFirendly(oldInstance, "clear", new Object[] {}, out);
newSize = 0;
}
for (int i = 0; i < newSize; i++) {
Object index = new Integer(i);
Expression oldGetExp = new Expression(oldInstance, "get",
new Object[] { index });
Expression newGetExp = new Expression(newInstance, "get",
new Object[] { index });
try {
Object oldValue = oldGetExp.getValue();
Object newValue = newGetExp.getValue();
out.writeExpression(oldGetExp);
if (!AppletFriendlyXMLEncoder.equals(newValue, out
.get(oldValue))) {
invokeStatementAppletFirendly(oldInstance, "set", new Object[] {
index, oldValue }, out);
}
} catch (Exception e) {
out.getExceptionListener().exceptionThrown(e);
}
}
for (int i = newSize; i < oldSize; i++) {
invokeStatementAppletFirendly(oldInstance, "add",
new Object[] { oldO.get(i) }, out);
}
}
}
public static class java_util_Collection_PersistenceDelegate extends
AppletFriendlyDefaultPersistenceDelegate {
public void initialize(Class type, Object oldInstance,
Object newInstance, Encoder out) {
java.util.Collection oldO = (java.util.Collection) oldInstance;
java.util.Collection newO = (java.util.Collection) newInstance;
if (newO.size() != 0) {
invokeStatementAppletFirendly(oldInstance, "clear", new Object[] {}, out);
}
for (Iterator i = oldO.iterator(); i.hasNext();) {
invokeStatementAppletFirendly(oldInstance, "add", new Object[] { i.next() },
out);
}
}
}
public static class javax_swing_tree_DefaultMutableTreeNode_PersistenceDelegate
extends AppletFriendlyDefaultPersistenceDelegate {
public void initialize(Class type, Object oldInstance,
Object newInstance, Encoder out) {
super.initialize(type, oldInstance, newInstance, out);
javax.swing.tree.DefaultMutableTreeNode m = (javax.swing.tree.DefaultMutableTreeNode) oldInstance;
javax.swing.tree.DefaultMutableTreeNode n = (javax.swing.tree.DefaultMutableTreeNode) newInstance;
for (int i = n.getChildCount(); i < m.getChildCount(); i++) {
invokeStatementAppletFirendly(oldInstance, "add", new Object[] { m
.getChildAt(i) }, out);
}
}
}
// fix for bug #4741757
public static class java_awt_Color_PersistenceDelegate extends
AppletFriendlyDefaultPersistenceDelegate {
protected Expression instantiate(Object oldInstance, Encoder out) {
Color p = (Color) oldInstance;
Object[] constructorArgs = new Object[] { new Integer(p.getRed()),
new Integer(p.getGreen()), new Integer(p.getBlue()),
new Integer(p.getAlpha()) };
return new Expression(oldInstance, oldInstance.getClass(), "new",
constructorArgs);
}
};
// fix for bug #4741757
public static class java_awt_geom_Point2D$Double_PersistenceDelegate extends
AppletFriendlyDefaultPersistenceDelegate {
public void initialize(Class type, Object oldInstance,
Object newInstance, Encoder out) {
super.initialize(type, oldInstance, newInstance, out);
Point2D p = (Point2D) oldInstance;
out
.writeStatement(new Statement(oldInstance, "setLocation",
new Object[] { new Double(p.getX()),
new Double(p.getY()) }));
}
};
public static class java_awt_geom_Rectangle2D_PersistenceDelegate extends
AppletFriendlyDefaultPersistenceDelegate {
protected Expression instantiate(Object oldInstance, Encoder out) {
Rectangle2D p = (Rectangle2D) oldInstance;
Object[] constructorArgs = new Object[] {
new Double(p.getHeight()), new Double(p.getWidth()),
new Double(p.getX()), new Double(p.getY()), };
return new Expression(oldInstance, oldInstance.getClass(), "new",
constructorArgs);
}
};
public static class java_awt_Font_PersistenceDelegate extends
AppletFriendlyDefaultPersistenceDelegate {
protected Expression instantiate(Object oldInstance, Encoder out) {
Font p = (Font) oldInstance;
Object[] constructorArgs = new Object[] { new String(p.getName()),
new Integer(p.getStyle()), new Integer(p.getSize()) };
return new Expression(oldInstance, oldInstance.getClass(), "new",
constructorArgs);
}
};
}
The table below shows all metrics for AppletFriendlyXMLEncoder.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 84.00 | Number of blocks | |
| BLOCK_COMMENT | 30.00 | Number of block comment lines | |
| COMMENTS | 187.00 | Comment lines | |
| COMMENT_DENSITY | 0.46 | Comment density | |
| COMPARISONS | 88.00 | Number of comparison operators | |
| CYCLOMATIC | 126.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 15.00 | Comments in declarations | |
| DOC_COMMENT | 97.00 | Number of javadoc comment lines | |
| ELOC | 410.00 | Effective lines of code | |
| EXEC_COMMENTS | 30.00 | Comments in executable code | |
| EXITS | 77.00 | Procedure exits | |
| FUNCTIONS | 33.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 79.93 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 162.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 0.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 1.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 1.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 1.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 0.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 0.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 30.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 0.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 0.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 0.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 2.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 0.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 1.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 0.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 0.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 0.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 0.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 1.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 0.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 0.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 2.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 0.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 7.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 10.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 0.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 0.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 0.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 0.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 0.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 0.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 1957.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 0.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 6.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 1.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 1.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 0.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 0.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 3.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 0.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 0.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 2.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 1.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 3.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 1.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 739.00 | Number of lines in the source file | |
| LINE_COMMENT | 60.00 | Number of line comments | |
| LOC | 491.00 | Lines of code | |
| LOGICAL_LINES | 220.00 | Number of statements | |
| LOOPS | 12.00 | Number of loops | |
| NEST_DEPTH | 7.00 | Maximum nesting depth | |
| OPERANDS | 1305.00 | Number of operands | |
| OPERATORS | 2393.00 | Number of operators | |
| PARAMS | 86.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 3698.00 | Halstead program length | |
| PROGRAM_VOCAB | 449.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 76.00 | Number of return points from functions | |
| SIZE | 25943.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 400.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 49.00 | Number of unique operators | |
| WHITESPACE | 61.00 | Number of whitespace lines | |