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https://issues.apache.org/jira/browse/APEXMALHAR-1972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15096095#comment-15096095
]
ASF GitHub Bot commented on APEXMALHAR-1972:
--------------------------------------------
Github user shubham-pathak22 commented on a diff in the pull request:
https://github.com/apache/incubator-apex-malhar/pull/170#discussion_r49583191
--- Diff:
library/src/main/java/com/datatorrent/lib/expressions/ConversionUtils.java ---
@@ -0,0 +1,204 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package com.datatorrent.lib.expressions;
+
+import org.apache.commons.lang3.math.NumberUtils;
+
+public class ConversionUtils
+{
+ public static int toInt(double a)
+ {
+ return new Double(a).intValue();
+ }
+
+ public static int toInt(float a)
+ {
+ return new Float(a).intValue();
+ }
+
+ public static int toInt(long a)
+ {
+ return new Long(a).intValue();
+ }
+
+ public static int toInt(byte a)
+ {
+ return new Byte(a).intValue();
+ }
+
+ public static int toInt(short a)
+ {
+ return new Short(a).intValue();
+ }
+
+ public static int toInt(String a)
--- End diff --
can we add java docs ? NumberUtils returns 0 for null , blank or incorrect
string.
> Create Expression Evaluator Support quasi-Java Expression Language
> ------------------------------------------------------------------
>
> Key: APEXMALHAR-1972
> URL: https://issues.apache.org/jira/browse/APEXMALHAR-1972
> Project: Apache Apex Malhar
> Issue Type: New Feature
> Components: utilities
> Reporter: Chinmay Kolhatkar
> Assignee: Chinmay Kolhatkar
>
> Create Expression Evaluator utility which will have support for quasi-Java
> expression language.
> Usecases, Design, etc need to be added as a comment.
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