/** Make a clone of the given object. */
protected static Object makeClone(Object obj) {
Object clone_obj = obj;
if (obj instanceof String) {
String string = (String) obj;
clone_obj = (Object) new String(string);
} else if (obj instanceof Integer) {
clone_obj = new Integer(((Integer) obj).intValue());
} else if (obj instanceof Float) {
clone_obj = new Float(((Float) obj).floatValue());
} else if (obj instanceof Double) {
clone_obj = new Double(((Double) obj).doubleValue());
} else if (obj instanceof Long) {
clone_obj = new Long(((Long) obj).longValue());
} else {
// If a clone method exists for the object, then
// invoke it
try {
Class cl = obj.getClass();
Method meth = cl.getMethod("clone", null);
clone_obj = meth.invoke(obj, null);
} catch (SecurityException ex) {
clone_obj = obj;
} catch (IllegalArgumentException ex) {
InternalErrorHandler.handleException(ex);
} catch (IllegalAccessException ex) {
clone_obj = obj;
} catch (InvocationTargetException ex) {
clone_obj = obj;
} catch (NoSuchMethodException ex) {
clone_obj = obj;
}
}
return clone_obj;
}
public static boolean isMySubclass(Class other) {
try {
return Class.forName(SIP_PACKAGE + ".GenericObject").isAssignableFrom(other);
} catch (Exception ex) {
InternalErrorHandler.handleException(ex);
}
return false;
}
public static Class getClassFromName(String className) {
try {
return Class.forName(className);
} catch (Exception ex) {
InternalErrorHandler.handleException(ex);
return null;
}
}
/**
* Do a recursive find and replace of objects pointed to by this object.
*
* @since v1.0
* @param objectText is the canonical string representation of the object that we want to replace.
* @param replacement is the object that we want to replace it with.
* @param matchSubstring a boolean which tells if we should match a substring of the target object
* A replacement will occur if a portion of the structure is found with matching encoded text
* (a substring if matchSubstring is true) as objectText and with the same class as
* replacement.
*/
public void replace(String objectText, GenericObject replacement, boolean matchSubstring)
throws IllegalArgumentException {
if (objectText == null || replacement == null) {
throw new IllegalArgumentException("null argument!");
}
Class replacementClass = replacement.getClass();
Class myclass = getClass();
Field[] fields = myclass.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
Field f = fields[i];
Class fieldType = f.getType();
if (!getClassFromName(SIP_PACKAGE + ".GenericObject").isAssignableFrom(fieldType)
&& !getClassFromName(SIP_PACKAGE + ".GenericObjectList").isAssignableFrom(fieldType)) {
continue;
} else if ((f.getModifiers() & Modifier.PRIVATE) == Modifier.PRIVATE) {
continue;
}
try {
if (fieldType.equals(replacementClass)) {
if (GenericObject.isMySubclass(replacementClass)) {
GenericObject obj = (GenericObject) f.get(this);
if (!matchSubstring) {
if (objectText.compareTo(obj.encode()) == 0) {
f.set(this, replacement);
}
} else {
// Substring match is specified
if (obj.encode().indexOf(objectText) >= 0) {
f.set(this, replacement);
}
}
}
} else if (GenericObjectList.isMySubclass(replacementClass)) {
GenericObjectList obj = (GenericObjectList) f.get(this);
if (!matchSubstring) {
if (objectText.compareTo(obj.encode()) == 0) {
f.set(this, replacement);
}
} else {
if (obj.encode().indexOf(objectText) >= 0) {
f.set(this, replacement);
}
}
} else if (getClassFromName(SIP_PACKAGE + ".GenericObject").isAssignableFrom(fieldType)) {
GenericObject g = (GenericObject) f.get(this);
g.replace(objectText, replacement, matchSubstring);
} else if (getClassFromName(SIP_PACKAGE + ".GenericObjectList")
.isAssignableFrom(fieldType)) {
GenericObjectList g = (GenericObjectList) f.get(this);
g.replace(objectText, replacement, matchSubstring);
}
} catch (IllegalAccessException ex) {
InternalErrorHandler.handleException(ex);
}
}
}
/** Make a clone of this object. */
public Object clone() {
Class myclass = this.getClass();
Object newObject = null;
try {
newObject = myclass.newInstance();
} catch (Exception ex) {
InternalErrorHandler.handleException(ex);
}
GenericObject gobj = (GenericObject) newObject;
if (this.inputText != null) gobj.inputText = new String(this.inputText);
return newObject;
}
/**
* An introspection based equality predicate for GenericObjects.
*
* @other the other object to test against.
*/
public boolean equals(Object that) {
if (!this.getClass().equals(that.getClass())) return false;
Class myclass = this.getClass();
Field[] fields = myclass.getDeclaredFields();
Class hisclass = that.getClass();
Field[] hisfields = hisclass.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
Field f = fields[i];
Field g = hisfields[i];
// Only print protected and public members.
int modifier = f.getModifiers();
if ((modifier & Modifier.PRIVATE) == Modifier.PRIVATE) continue;
Class fieldType = f.getType();
String fieldName = f.getName();
if (fieldName.compareTo("stringRepresentation") == 0) {
continue;
}
if (fieldName.compareTo("indentation") == 0) {
continue;
}
if (fieldName.compareTo("inputText") == 0) {
continue;
}
try {
// Primitive fields are printed with type: value
if (fieldType.isPrimitive()) {
String fname = fieldType.toString();
if (fname.compareTo("int") == 0) {
if (f.getInt(this) != g.getInt(that)) return false;
} else if (fname.compareTo("short") == 0) {
if (f.getShort(this) != g.getShort(that)) return false;
} else if (fname.compareTo("char") == 0) {
if (f.getChar(this) != g.getChar(that)) return false;
} else if (fname.compareTo("long") == 0) {
if (f.getLong(this) != g.getLong(that)) return false;
} else if (fname.compareTo("boolean") == 0) {
if (f.getBoolean(this) != g.getBoolean(that)) return false;
} else if (fname.compareTo("double") == 0) {
if (f.getDouble(this) != g.getDouble(that)) return false;
} else if (fname.compareTo("float") == 0) {
if (f.getFloat(this) != g.getFloat(that)) return false;
}
} else if (g.get(that) == f.get(this)) return true;
else if (f.get(this) == null) return false;
else if (g.get(that) == null) return false;
else return f.get(this).equals(g.get(that));
} catch (IllegalAccessException ex1) {
InternalErrorHandler.handleException(ex1);
}
}
return false;
}
/** An assertion checking utility. */
protected void Assert(boolean condition, String msg) {
if (!condition) InternalErrorHandler.handleException(msg);
}
/**
* Generic print formatting function: Does depth-first descent of the structure and recursively
* prints all non-private objects pointed to by this object. <bf> Warning - the following generic
* string routine will bomb (go into infinite loop) if there are any circularly linked structures
* so if you have these, they had better be private! </bf> We dont have to worry about such things
* for our structures (we never use circular linked structures).
*/
public String toString() {
stringRepresentation = "";
Class myclass = getClass();
sprint(myclass.getName());
sprint("{");
sprint("inputText:");
sprint(inputText);
Field[] fields = myclass.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
Field f = fields[i];
// Only print protected and public members.
int modifier = f.getModifiers();
if ((modifier & Modifier.PRIVATE) == Modifier.PRIVATE) continue;
Class fieldType = f.getType();
String fieldName = f.getName();
if (fieldName.compareTo("stringRepresentation") == 0) {
// avoid nasty recursions...
continue;
}
if (fieldName.compareTo("indentation") == 0) {
// formatting stuff - not relevant here.
continue;
}
sprint(fieldName + ":");
try {
// Primitive fields are printed with type: value
if (fieldType.isPrimitive()) {
String fname = fieldType.toString();
sprint(fname + ":");
if (fname.compareTo("int") == 0) {
int intfield = f.getInt(this);
sprint(intfield);
} else if (fname.compareTo("short") == 0) {
short shortField = f.getShort(this);
sprint(shortField);
} else if (fname.compareTo("char") == 0) {
char charField = f.getChar(this);
sprint(charField);
} else if (fname.compareTo("long") == 0) {
long longField = f.getLong(this);
sprint(longField);
} else if (fname.compareTo("boolean") == 0) {
boolean booleanField = f.getBoolean(this);
sprint(booleanField);
} else if (fname.compareTo("double") == 0) {
double doubleField = f.getDouble(this);
sprint(doubleField);
} else if (fname.compareTo("float") == 0) {
float floatField = f.getFloat(this);
sprint(floatField);
}
} else if (Class.forName(SIP_PACKAGE + ".GenericObject").isAssignableFrom(fieldType)) {
if (f.get(this) != null) {
sprint(((GenericObject) f.get(this)).toString(indentation + 1));
} else {
sprint("<null>");
}
} else if (Class.forName(SIP_PACKAGE + ".GenericObjectList").isAssignableFrom(fieldType)) {
if (f.get(this) != null) {
sprint(((GenericObjectList) f.get(this)).toString(indentation + 1));
} else {
sprint("<null>");
}
} else {
// Dont do recursion on things that are not
// of our header type...
if (f.get(this) != null) {
sprint(f.get(this).getClass().getName() + ":");
} else {
sprint(fieldType.getName() + ":");
}
sprint("{");
if (f.get(this) != null) {
sprint(f.get(this).toString());
} else {
sprint("<null>");
}
sprint("}");
}
} catch (IllegalAccessException ex1) {
continue; // we are accessing a private field...
} catch (Exception ex) {
InternalErrorHandler.handleException(ex);
}
}
sprint("}");
return stringRepresentation;
}
/**
* An introspection based predicate matching using a template object. Allows for partial match of
* two protocl Objects.
*
* @other the match pattern to test against. The match object has to be of the same type (class).
* Primitive types and non-sip fields that are non null are matched for equality. Null in any
* field matches anything. Some book-keeping fields are ignored when making the comparison.
*/
public boolean match(Object other) {
if (other == null) return true;
if (!this.getClass().equals(other.getClass())) return false;
GenericObject that = (GenericObject) other;
Class myclass = this.getClass();
Field[] fields = myclass.getDeclaredFields();
Class hisclass = other.getClass();
Field[] hisfields = hisclass.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
Field f = fields[i];
Field g = hisfields[i];
// Only print protected and public members.
int modifier = f.getModifiers();
if ((modifier & Modifier.PRIVATE) == Modifier.PRIVATE) continue;
Class fieldType = f.getType();
String fieldName = f.getName();
if (fieldName.compareTo("stringRepresentation") == 0) {
continue;
}
if (fieldName.compareTo("indentation") == 0) {
continue;
}
if (fieldName.compareTo("inputText") == 0) {
continue;
}
try {
// Primitive fields are printed with type: value
if (fieldType.isPrimitive()) {
String fname = fieldType.toString();
if (fname.compareTo("int") == 0) {
if (f.getInt(this) != g.getInt(that)) return false;
} else if (fname.compareTo("short") == 0) {
if (f.getShort(this) != g.getShort(that)) return false;
} else if (fname.compareTo("char") == 0) {
if (f.getChar(this) != g.getChar(that)) return false;
} else if (fname.compareTo("long") == 0) {
if (f.getLong(this) != g.getLong(that)) return false;
} else if (fname.compareTo("boolean") == 0) {
if (f.getBoolean(this) != g.getBoolean(that)) return false;
} else if (fname.compareTo("double") == 0) {
if (f.getDouble(this) != g.getDouble(that)) return false;
} else if (fname.compareTo("float") == 0) {
if (f.getFloat(this) != g.getFloat(that)) return false;
}
} else {
Object myObj = f.get(this);
Object hisObj = g.get(that);
if (hisObj == myObj) return true;
else if (hisObj != null && myObj == null) return false;
else if (GenericObject.isMySubclass(myObj.getClass())
&& !((GenericObject) myObj).match(hisObj)) return false;
else if (hisObj instanceof java.lang.String && myObj instanceof java.lang.String) {
if (((String) myObj).compareToIgnoreCase((String) hisObj) != 0) return false;
} else if (GenericObjectList.isMySubclass(myObj.getClass())
&& !((GenericObjectList) myObj).match(hisObj)) return false;
}
} catch (IllegalAccessException ex1) {
InternalErrorHandler.handleException(ex1);
}
}
return true;
}
