package xin.glue.ui.common;

//import java.lang.reflect.Array;

import com.posdata.glue.biz.constants.PosBizControlConstants;
import com.posdata.glue.context.PosContext;
import com.posdata.glue.dao.vo.PosRowSet;

public class PosMultiSearch extends PosDBEngine {
	public String runActivity(PosContext ctx) {
/*
 * 传入参数说明：
 * 	1. class: 类名（com.xin.ui.PosInitParam）
 * 	2. dao  : dao 名（testdao)
 * 	3. sqlkey-count: sqlkey 数量
 * 	4. sqlkey 命名规则：'sqlkey' + 序号(0, 1, ...)，如 sqlkey0, sqlkey1, ...
 * 	5. param 参数规则：
 * 		1) 参数命名规则：'param' + 参数序号
 * 		2) 与 sqlkey 对应关系：通过序号实现
 * 	6. resultkey：返回结果集前缀
 * 		1) 结果集命名规则：resultkey + '_' + 序号，如:
 * 			resultkey 设置为 ListResult，返回结果集为 ListResult_0, ListResult_1, ...
*/
    	int count = 1;
    	if (getProperty("sqlkey-count") != null)
    		count = Integer.parseInt(getProperty("sqlkey-count").trim());
        if (count == 0) return PosBizControlConstants.SUCCESS;

        Initialize("true".equalsIgnoreCase(getProperty("writeLog")));
        String resultkey = getProperty("resultkey");
        if (resultkey == null) {
        	resultkey = "ListResult";
            for(int i = 0; i < count; i++) {
            	String resultkeys = resultkey + "_" + i;
            	setParamMap(ctx, "sqlkey" + i, "param" + i);
            	Execute(resultkeys, ctx, "sqlkey" + i, "param" + i);
            }
        } else {
        	String[] resultkeys = resultkey.split("\\|");
			int length = resultkeys.length;
            for(int i = 0; i < count; i++) {
            	setParamMap(ctx, "sqlkey" + i, "param" + i);
            	Execute((i<length)?resultkeys[i]:resultkeys[length-1], ctx, "sqlkey" + i, "param" + i);
            }
        }

        return PosBizControlConstants.SUCCESS;
    }

	protected void Execute(String resultkey, PosContext context, String sqlKey, String paramKey) {
		PosRowSet rowset = (PosRowSet)super.Execute(context, sqlKey, paramKey);
    	if ((rowset != null && rowset.hasNext()) || context.get(resultkey) == null)
    		context.put(resultkey, rowset);
	}

/*
	private Object expand(Object array, int newSize) {
		if (array == null) return null;

		Class cls = array.getClass();
		if  (cls.isArray()) {
			int len = Array.getLength(array);
			if (len >= newSize) {
				return  array;
			} else {
				Class clsElement = cls.getComponentType();
				Object newArray = Array.newInstance(clsElement, newSize);
				System.arraycopy(array, 0, newArray, 0, len);
				return  newArray;
			}
		} else {
			throw  new  ClassCastException("need  array");
		}
	}

	private boolean containsKey(Object key, Object array) {
		if (array == null) return false;

		Class cls = array.getClass();
		if  (cls.isArray()) {
			int len = Array.getLength(array);
			for (int i=0; i<len; i++) {
				if (key.equals([i])) return true;
			}
		}
		return false;
	}
*/
}