private void initSumcElObjects() {
String[] subExps = this.parseELExpression();
// 寻找sumcEls的个数索引
int index = 1;
for (; index < subExps.length; index++) {
if (SumcElObject.isSumcAggregateExpression(subExps[index]) == true) break;
if (this.isHaveSumcElExpression(subExps, index) == true) break;
}
sumcEls = new Object[index < subExps.length ? index + 1 : index];
for (int i = 0; i < index; i++) {
sumcEls[i] = subExps[i];
}
if (index < subExps.length) {
String tt = "";
for (int i = index; i < subExps.length; i++)
tt = tt.equals("") ? subExps[i] : tt + "." + subExps[i];
SumcElObject subcEl = new SumcElObject("#{" + tt + "}", entityObject, request);
sumcEls[index] = subcEl;
}
logger.debug(sumcEls);
}
public Object calculate() {
Object tempObject = this.entityObject;
boolean isAggregate = false;
String sumcSplitStr = "";
for (int i = 0; i < sumcEls.length; i++) {
if (sumcEls[i] instanceof SumcElObject) { // 如果当前是一个SumcElObject,则上一个取得的对象肯定是一个集合对象,
if (tempObject instanceof java.util.Collection) {
Object[] objs = ((java.util.Collection) tempObject).toArray();
StringBuffer buf = new StringBuffer();
for (int j = 0; j < objs.length; j++) {
SumcElObject tempSumcElObject = ((SumcElObject) sumcEls[i]);
tempSumcElObject.setEntityObject(
objs[j]); // 将当前集合取得的每个对象做为递归的SumcElObject的enitityObject以备计算之用
buf.append(tempSumcElObject.calculate());
if (j < objs.length - 1) buf.append(sumcSplitStr);
}
tempObject = buf.toString();
} else {
SumcElObject tempSumcElObject = ((SumcElObject) sumcEls[i]);
tempSumcElObject.setEntityObject(
tempObject); // 将当前集合取得的每个对象做为递归的SumcElObject的enitityObject以备计算之用
tempObject = tempSumcElObject.calculate();
}
} else if (SumcElObject.isSumcAggregateExpression((String) sumcEls[i]) == true) {
sumcSplitStr = getSumcSplitStr((String) sumcEls[i]);
tempObject =
ReflectHelper.invoke(
tempObject,
"get"
+ StringHelper.converseFirstCharToUpper(
getAggregateMethod((String) sumcEls[i])));
isAggregate = true;
} else { // 普通的简单elobject对象调用
if (isAggregate == true) {
tempObject =
sumcInvoke(
tempObject,
"get" + StringHelper.converseFirstCharToUpper((String) sumcEls[i]),
sumcSplitStr);
break;
} else {
tempObject =
ReflectHelper.invoke(
tempObject, "get" + StringHelper.converseFirstCharToUpper((String) sumcEls[i]));
if (tempObject == null) {
tempObject = "";
break;
}
}
}
}
return tempObject;
}
private boolean isHaveSumcElExpression(String[] subExps, int beginIndex) {
for (int i = beginIndex; i < subExps.length; i++) {
if (SumcElObject.isSumcAggregateExpression(subExps[i]) == true) return true;
}
return false;
}