package com.de22.javabytecode;

/**
 * Copyright Wynne Crisman 1999,2006<p>
 */
public abstract class Component implements ITypeComponent {
	public static final byte[] EMPTY_BYTE_ARRAY = new byte[0];

	private Type type = null;
/**
 * Converts a class name in the java class file format to class name in the java source format.
 * @param type The class to convert to a java format (which except for native non-array types (such as int), can be sent to a class loader).
 * @return The java source formatted class name.
 */
public static String classFileFormatToJavaFormat(String type) {
	String result = null;
	
	if(type.charAt(0) == '[') {
		result = type.replace('/', '.');
	}//if//
	else if(type.charAt(0) == 'L') {
		result = type.substring(1, type.length() - 1).replace('/', '.');
	}//else if//
	else {
		switch(type.charAt(0)) {
			case 'V': {
				result = Void.TYPE.getName();
				break;
			}//case//
			case 'I': {
				result = Integer.TYPE.getName();
				break;
			}//case//
			case 'B': {
				result = Byte.TYPE.getName();
				break;
			}//case//
			case 'C': {
				result = Character.TYPE.getName();
				break;
			}//case//
			case 'S': {
				result = Short.TYPE.getName();
				break;
			}//case//
			case 'Z': {
				result = Boolean.TYPE.getName();
				break;
			}//case//
			case 'D': {
				result = Double.TYPE.getName();
				break;
			}//case//
			case 'F': {
				result = Float.TYPE.getName();
				break;
			}//case//
			case 'J': {
				result = Long.TYPE.getName();
				break;
			}//case//
		}//switch//
	}//else//
	
	return result;
}//classFileFormatToJavaFormat()//
/**
 * Converts class names in the java class file format to class names in the java source format.
 * @param types The classes to convert to a java format.
 * @return The java source formatted class names.
 */
public static String[] classFileFormatToJavaFormat(String[] types) {
	String[] result = new String[types.length];
	
	for(int typeIndex = 0; typeIndex < types.length; typeIndex++) {
		result[typeIndex] = classFileFormatToJavaFormat(types[typeIndex]);
	}//for//
	
	return result;
}//classFileFormatToJavaFormat()//
/**
 * Component constructor.
 */
public Component(Type type) {
	super();

	this.type = type;
}//Component()//
/**
 * Appends a the end of line characters to the buffer.
 * <p>This is a utility method to assist the toString(StringBuffer, int) implementations.
 * @param buffer The buffer to write an end of line to.
 */
protected static void appendEndOfLine(StringBuffer buffer) {
	buffer.append('\r');
	buffer.append('\n');
}//appendEndOfLine()//
/**
 * Appends tab characters to the buffer.
 * <p>This is a utility method to assist the toString(StringBuffer, int) implementations.
 * @param buffer The buffer to write a tabs to.
 * @param tabCount The number of tabs to append.
 */
protected static void appendTabs(StringBuffer buffer, int tabCount) {
	while(tabCount-- != 0) {
		buffer.append('\t');
	}//while//
}//appendTabs()//
/**
 * Gets the class associated with this component.
 * @return The class information that this component is a member of.
 */
protected Type getType() {
	return type;
}//getType()//
/**
 * Displays the component and all subcomponents in human readable string form.
 * @param buffer The buffer to display to.
 * @param tabCount The number of tabs to prepend to each line.
 */
public abstract void toString(StringBuffer buffer, int tabCount);
}//Component//