BaseException.java

package com.hundsun.jresplus.exception;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.hundsun.jresplus.common.util.StringUtil;

/** 
 * <p></p>
 * @author: hanyin
 * @since: 8 Feb 2014  10:04:30
 * @history:
 ************************************************
 * @file: BaseException.java
 * @Copyright: 2013 恒生电子股份有限公司.
 * All right reserved.
 ************************************************/

public class BaseException extends RuntimeException {
	private static final long serialVersionUID = -6853310712844466349L;
	private static final Object[] EMPTY_PARAMS = new Object[0];

	private String errorCode = "-1";
	private String errorMessage = "";

	/** 错误参数清单 */
	private Object[] errorParams;

	/** 按照put的顺序保存错误参数 */
	private List<String> errorPropNames = new ArrayList<String>();
	private Map<String, Object> errorProperties = new HashMap<String, Object>();

	public BaseException(String errorCode) {
		this.errorCode = errorCode;
	}

	public BaseException(String errorCode, Object... errorParams) {
		this.errorCode = errorCode;
		this.errorParams = errorParams;
	}

	public BaseException(Throwable cause, String errorCode) {
		super(cause);
		this.errorCode = errorCode;
	}

	public BaseException(Throwable cause, String errorCode, Object[] errorParams) {
		super(cause);
		this.errorCode = errorCode;
		this.errorParams = errorParams;
	}

	public BaseException put(String name, Object prop) {
		if (name != null) {
			errorPropNames.add(name);
			errorProperties.put(name, prop);
		}
		return this;
	}

	public void setErrorMessage(String errorMessage) {
		this.errorMessage = errorMessage;
	}

	public String getErrorMessage() {
		return errorMessage;
	}

	public String getErrorCode() {
		return errorCode;
	}

	public Object[] getErrorParams() {
		Object[] errorParams = EMPTY_PARAMS;
		if (this.errorParams != null) {
			errorParams = this.errorParams;
		}
		if (errorPropNames.size() == 0) {
			return errorParams;
		}
		// 如果存在带key的参数则追加在返回结果中
		ArrayList<Object> params = new ArrayList<Object>(
				Arrays.asList(errorParams));
		for (String name : errorPropNames) {
			params.add(errorProperties.get(name));
		}
		return params.toArray();
	}

	public List<String> getErrorPropNames() {
		return errorPropNames;
	}

	public Map<String, Object> getErrorProperties() {
		return errorProperties;
	}

	public void setErrorCode(String errorCode) {
		this.errorCode = errorCode;
	}

	public void setErrorParams(Object[] errorParams) {
		this.errorParams = errorParams;
	}

	public void setErrorPropNames(List<String> errorPropNames) {
		this.errorPropNames = errorPropNames;
	}

	public void setErrorProperties(Map<String, Object> errorProperties) {
		this.errorProperties = errorProperties;
	}

	public String getMessage() {
		String message = super.getMessage();
		if (StringUtil.isNotEmpty(errorMessage)) {
			message = errorMessage;
		}
		if (StringUtil.isEmpty(message)) {
			StringBuilder sb = new StringBuilder();
			if (errorParams != null) {
				for (int i = 0; i < errorParams.length; i++) {
					if (i == 0) {
						sb.append(errorParams[i]);
					} else {
						sb.append(", " + errorParams[i]);
					}
				}
				if (errorParams.length > 0 && errorPropNames.size() > 0) {
					sb.append(", ");
				}
			}
			int errorPropSize = errorPropNames.size();
			for (int i = 0; i < errorPropSize; i++) {
				String propName = errorPropNames.get(i);
				Object propValue = errorProperties.get(propName);
				if (i == 0) {
					sb.append(propName + "=" + propValue);
				} else {
					sb.append(", " + propName + "=" + propValue);
				}
			}
			sb.append(" [" + errorCode + "]");
			message = sb.toString();
		}
		return message;
	}

}