io.cdap.plugin.common.CubeUtils Maven / Gradle / Ivy
/*
* Copyright © 2016-2019 Cask Data, Inc.
*
* Licensed 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 io.cdap.plugin.common;
import com.google.common.base.Function;
import com.google.common.base.Strings;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Utility class for usage by batch and real-time cube sinks.
*/
public final class CubeUtils {
private CubeUtils() {
throw new AssertionError("Should not instantiate static utility class.");
}
public static Map parseAndGetProperties(String property, String propertyValue, String delimiter,
String fieldDelimiter, Function keyFunction) {
Map result = new HashMap<>();
List fieldGroups = Arrays.asList(propertyValue.split(delimiter));
for (String group : fieldGroups) {
String[] split = group.split(fieldDelimiter);
if (split.length != 2) {
//should not happen
throw new IllegalArgumentException(
String.format("For Property %s Parameter %s, name or value is empty, please check config", property, group));
}
if (Strings.isNullOrEmpty(split[0])) {
throw new IllegalArgumentException(
String.format("Empty key/value is not allowed in property %s, group %s", property, group));
}
if (Strings.isNullOrEmpty(split[1])) {
throw new IllegalArgumentException(
String.format("Empty key/value is not allowed in property %s, group %s", property, group));
}
result.put(keyFunction.apply(split[0]), split[1]);
}
return result;
}
}