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MapType.java
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83 lines (68 loc) · 2.32 KB
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/*
* 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.orc.tools.json;
import org.apache.orc.TypeDescription;
import java.io.PrintStream;
import java.util.Objects;
public class MapType extends HiveType {
private final HiveType keyType;
private final HiveType valueType;
MapType(HiveType keyType, HiveType valueType) {
super(Kind.MAP);
this.keyType = keyType;
this.valueType = valueType;
}
@Override
public String toString() {
return "map<" + keyType + "," + valueType + ">";
}
@Override
public boolean equals(Object o) {
return super.equals(o) && keyType.equals(((MapType)o).keyType) &&
valueType.equals(((MapType)o).valueType);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), keyType, valueType);
}
@Override
public boolean subsumes(HiveType other) {
return (other.kind == Kind.MAP &&
keyType.subsumes(((MapType)other).keyType) &&
valueType.subsumes(((MapType)other).valueType)) ||
other.kind == Kind.NULL;
}
@Override
public void merge(HiveType other) {
if (other.getClass() == MapType.class) {
MapType otherMap = (MapType) other;
keyType.merge(otherMap.keyType);
valueType.merge(otherMap.valueType);
}
}
@Override
public void printFlat(PrintStream out, String prefix) {
prefix = prefix + ".";
keyType.printFlat(out, prefix + "key");
keyType.printFlat(out, prefix + "value");
}
@Override
public TypeDescription getSchema() {
return TypeDescription.createMap(keyType.getSchema(), valueType.getSchema());
}
}