| /** |
| * 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 edu.uci.ics.hivesterix.serde.lazy; |
| |
| import org.apache.hadoop.io.Text; |
| |
| import edu.uci.ics.hivesterix.serde.lazy.LazyUtils.VInt; |
| import edu.uci.ics.hivesterix.serde.lazy.objectinspector.primitive.LazyStringObjectInspector; |
| |
| /** |
| * LazyObject for storing a value of String. |
| */ |
| public class LazyString extends LazyPrimitive<LazyStringObjectInspector, Text> { |
| |
| public LazyString(LazyStringObjectInspector oi) { |
| super(oi); |
| data = new Text(); |
| } |
| |
| public LazyString(LazyString copy) { |
| super(copy); |
| data = new Text(copy.data); |
| } |
| |
| VInt vInt = new LazyUtils.VInt(); |
| |
| @Override |
| public void init(byte[] bytes, int start, int length) { |
| if (length == 0) { |
| isNull = true; |
| return; |
| } else |
| isNull = false; |
| |
| // get the byte length of the string |
| LazyUtils.readVInt(bytes, start, vInt); |
| if (vInt.value + vInt.length != length) |
| throw new IllegalStateException("parse string: length mismatch, expected " + (vInt.value + vInt.length) |
| + " but get " + length); |
| assert (length - vInt.length > -1); |
| data.set(bytes, start + vInt.length, length - vInt.length); |
| } |
| |
| } |