org.apache.hadoop.hive.llap.DebugUtils Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional debugrmation
* 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 org.apache.hadoop.hive.llap;
/**
* A class that contains debug methods; also allows enabling the logging of various
* trace messages with low runtime cost, in order to investigate reproducible bugs.
*/
public class DebugUtils {
public static String toString(boolean[] a) {
if (a == null) return "null";
StringBuilder b = new StringBuilder();
b.append('[');
for (int i = 0; i < a.length; ++i) {
b.append(a[i] ? "1" : "0");
}
b.append(']');
return b.toString();
}
}