1 package org.apache.helix.alerts;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.Iterator;
23
24 public class GreaterAlertComparator extends AlertComparator {
25
26 @Override
27 /*
28 * Returns true if any element left tuple exceeds any element in right tuple
29 */
30 public boolean evaluate(Tuple<String> leftTup, Tuple<String> rightTup) {
31 Iterator<String> leftIter = leftTup.iterator();
32 while (leftIter.hasNext()) {
33 double leftVal = Double.parseDouble(leftIter.next());
34 Iterator<String> rightIter = rightTup.iterator();
35 while (rightIter.hasNext()) {
36 double rightVal = Double.parseDouble(rightIter.next());
37 if (leftVal > rightVal) {
38 return true;
39 }
40 }
41 }
42 return false;
43 }
44
45 }