org.ioc.commons.flowcontrol.exceptionparser.ErrorCodeException Maven / Gradle / Ivy

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Library which contains some extension classes for the library IOC-Commons. It provides some interface definitions and some tool classes which are non-dependent from the used technology; i.e. the classes and interfaces from this library do not depend on the choosen ioc-commons-implementation library.

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package org.ioc.commons.flowcontrol.exceptionparser;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.ioc.commons.utils.Format;

public abstract class ErrorCodeException extends Exception {

	public interface NewInstanceResolver> {
		EX newInstance(E errorCode, String exceptionMessage);
	}

	/**
	 * Serial no.
	 */
	private static final long serialVersionUID = 7517651865520807989L;
	private String detailedInfo;

	public ErrorCodeException() {

	}

	public ErrorCodeException(String prefix, Enum errorCode) {
		super(errorCodeToString(prefix, errorCode));
	}

	public ErrorCodeException(String prefix, Enum errorCode, String detailedInfo) {
		super(errorCodeToString(prefix, errorCode) + " " + ensureNoBrackets(detailedInfo));
		this.detailedInfo = detailedInfo;
	}

	public ErrorCodeException(String prefix, Enum errorCode, Throwable cause) {
		super(errorCodeToString(prefix, errorCode), cause);
	}

	public ErrorCodeException(String prefix, Enum errorCode, String detailedInfo, Throwable cause) {
		super(errorCodeToString(prefix, errorCode) + " " + ensureNoBrackets(detailedInfo), cause);
		this.detailedInfo = detailedInfo;
	}

	protected static String ensureNoBrackets(String text) {
		return text != null ? text.replace('[', '(').replace(']', ')') : text;
	}

	protected static String errorCodeToString(String prefix, Enum errorCode) {
		return Format.substitute("[{0}{1}:{2}]", prefix, errorCode.ordinal(), errorCode.name());
	}

	public abstract Enum getErrorCode();

	public String getDetailedInfo() {
		return this.detailedInfo;
	}

	protected static > EX fromMessage(Class exceptionClass,
			Class enumClass, String prefix, String message, NewInstanceResolver newInstanceResolver) {
		String javaPattern = Format.substitute(".*\\Q[{0}\\d*\\:.*\\Q]\\E", prefix);

		Pattern pattern = Pattern.compile(javaPattern);
		Matcher matcher = pattern.matcher(message);

		if (matcher.find()) {
			try {
				String stringCode = matcher.group(0);
				stringCode = stringCode.substring(stringCode.indexOf("[" + prefix));
				String exceptionMessage = message.substring(matcher.start() + matcher.group(0).length());

				String[] parts = stringCode.split(":");
				E errorCode = (E) Enum.valueOf(enumClass, parts[1].substring(0, parts[1].length() - 1));

				return newInstanceResolver.newInstance(errorCode, exceptionMessage);
			} catch (Exception e) {
				System.err.println("Error parsing exception: " + e);
				return null;
			}
		} else {
			return null;
		}
	}
}