org.apache.kylin.common.KylinConfigExt 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 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 org.apache.kylin.common;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import lombok.val;
import org.apache.commons.lang3.text.StrSubstitutor;
import com.google.common.collect.Maps;
/**
* Extends a KylinConfig with additional overrides.
*/
@SuppressWarnings("serial")
public class KylinConfigExt extends KylinConfig {
private final Map overrides;
final KylinConfig base;
public static KylinConfigExt createInstance(KylinConfig kylinConfig, Map overrides) {
if (kylinConfig instanceof KylinConfigExt) {
return new KylinConfigExt((KylinConfigExt) kylinConfig, overrides);
} else {
return new KylinConfigExt(kylinConfig, overrides);
}
}
private KylinConfigExt(KylinConfig base, Map overrides) {
super(base.getRawAllProperties(), true);
if (base.getClass() != KylinConfig.class) {
throw new IllegalArgumentException();
}
this.base = base;
this.overrides = BCC.check(overrides);
}
private KylinConfigExt(KylinConfigExt ext, Map overrides) {
super(ext.base.getRawAllProperties(), true);
this.base = ext.base;
this.overrides = BCC.check(overrides);
}
@Override
public String getOptional(String prop, String dft) {
String value = overrides.get(prop);
if (value != null) {
return getSubstitutor().replace(value);
} else {
return super.getOptional(prop, dft);
}
}
@Override
protected Properties getAllProperties() {
Properties result = new Properties();
result.putAll(super.getAllProperties());
result.putAll(overrides);
return result;
}
@Override
public Map getReadonlyProperties() {
val substitutor = getSubstitutor();
HashMap config = Maps.newHashMap();
for (Map.Entry entry : this.overrides.entrySet()) {
config.put(entry.getKey(), substitutor.replace(entry.getValue()));
}
return config;
}
@Override
protected StrSubstitutor getSubstitutor() {
// overrides > env > properties
final Map all = Maps.newHashMap();
// all.putAll((Map) properties); // use putAll will call CompositeMapView.size()sss
for(Map.Entry