private String _getChainedMethodNames(DetailAST methodCallAST) {
StringBundler sb = new StringBundler();
sb.append(DetailASTUtil.getMethodName(methodCallAST));
while (true) {
DetailAST parentAST = methodCallAST.getParent();
if (parentAST.getType() != TokenTypes.DOT) {
return sb.toString();
}
methodCallAST = parentAST.getParent();
if (methodCallAST.getType() != TokenTypes.METHOD_CALL) {
return sb.toString();
}
sb.append(StringPool.PERIOD);
sb.append(DetailASTUtil.getMethodName(methodCallAST));
}
}
@Override
public void visitToken(DetailAST detailAST) {
List<DetailAST> methodCallASTList =
DetailASTUtil.getAllChildTokens(detailAST, TokenTypes.METHOD_CALL, true);
for (DetailAST methodCallAST : methodCallASTList) {
List<DetailAST> childMethodCallASTList =
DetailASTUtil.getAllChildTokens(methodCallAST, TokenTypes.METHOD_CALL, true);
// Only check the method that is first in the chain
if (!childMethodCallASTList.isEmpty()) {
continue;
}
String chainedMethodNames = _getChainedMethodNames(methodCallAST);
if (!chainedMethodNames.contains(StringPool.PERIOD)) {
continue;
}
_checkMethodName(chainedMethodNames, "getClass", methodCallAST, detailAST);
if (StringUtil.count(chainedMethodNames, StringPool.PERIOD) == 1) {
continue;
}
if (chainedMethodNames.contains("concat.concat.concat")) {
log(methodCallAST.getLineNo(), MSG_AVOID_TOO_MANY_CONCAT);
continue;
}
if (!chainedMethodNames.contains("concat.concat")
&& !chainedMethodNames.matches(_chainingAllowedFormat)) {
log(
methodCallAST.getLineNo(),
MSG_AVOID_CHAINING_MULTIPLE,
DetailASTUtil.getMethodName(methodCallAST));
}
}
}
