/**
* 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.hadoop.hive.serde2.io;
import org.apache.hadoop.hive.common.type.HiveBaseChar;
import org.apache.hadoop.hive.common.type.HiveChar;
import org.apache.hadoop.hive.shims.ShimLoader;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.WritableComparable;
import org.apache.hive.common.util.HiveStringUtils;
/**
* HiveCharWritable.
* String values will be padded to full char length.
* Character legnth, comparison, hashCode should ignore trailing spaces.
*/
public class HiveCharWritable extends HiveBaseCharWritable
implements WritableComparable<HiveCharWritable> {
public HiveCharWritable() {
}
public HiveCharWritable(HiveChar hc) {
set(hc);
}
public HiveCharWritable(HiveCharWritable hcw) {
set(hcw);
}
public void set(HiveChar val) {
set(val.getValue(), -1);
}
public void set(String val) {
set(val, -1);
}
public void set(HiveCharWritable val) {
value.set(val.value);
}
public void set(HiveCharWritable val, int maxLength) {
set(val.getHiveChar(), maxLength);
}
public void set(HiveChar val, int len) {
set(val.getValue(), len);
}
public void set(String val, int maxLength) {
value.set(HiveBaseChar.getPaddedValue(val, maxLength));
}
public HiveChar getHiveChar() {
// Copy string value as-is
return new HiveChar(value.toString(), -1);
}
public void enforceMaxLength(int maxLength) {
set(getHiveChar(), maxLength);
}
public Text getStrippedValue() {
// A lot of these methods could be done more efficiently by operating on the Text value
// directly, rather than converting to HiveChar.
return new Text(getHiveChar().getStrippedValue());
}
public Text getPaddedValue() {
return getTextValue();
}
public int getCharacterLength() {
return HiveStringUtils.getTextUtfLength(getStrippedValue());
}
public int compareTo(HiveCharWritable rhs) {
return getStrippedValue().compareTo(rhs.getStrippedValue());
}
public boolean equals(Object rhs) {
if (rhs == this) {
return true;
}
if (rhs == null || rhs.getClass() != getClass()) {
return false;
}
return this.getStrippedValue().equals(((HiveCharWritable) rhs).getStrippedValue());
}
public int hashCode() {
return getStrippedValue().hashCode();
}
@Override
public String toString() {
return getPaddedValue().toString();
}
}