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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.hadoop.hive.serde2.lazy;

import org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive.LazyBooleanObjectInspector;
import org.apache.hadoop.io.BooleanWritable;

/**
 * LazyObject for storing a value of boolean.
 * 
 * 

* Part of the code is adapted from Apache Harmony Project. * * As with the specification, this implementation relied on code laid out in Henry S. Warren, Jr.'s Hacker's * Delight, (Addison Wesley, 2002) as well as The Aggregate's Magic Algorithms. *

* */ public class LazyBoolean extends LazyPrimitive { public LazyBoolean(LazyBooleanObjectInspector oi) { super(oi); data = new BooleanWritable(); } public LazyBoolean(LazyBoolean copy) { super(copy); data = new BooleanWritable(copy.data.get()); } @Override public void init(ByteArrayRef bytes, int start, int length) { if (length == 4 && Character.toUpperCase(bytes.getData()[start]) == 'T' && Character.toUpperCase(bytes.getData()[start + 1]) == 'R' && Character.toUpperCase(bytes.getData()[start + 2]) == 'U' && Character.toUpperCase(bytes.getData()[start + 3]) == 'E') { data.set(true); isNull = false; } else if (length == 5 && Character.toUpperCase(bytes.getData()[start]) == 'F' && Character.toUpperCase(bytes.getData()[start + 1]) == 'A' && Character.toUpperCase(bytes.getData()[start + 2]) == 'L' && Character.toUpperCase(bytes.getData()[start + 3]) == 'S' && Character.toUpperCase(bytes.getData()[start + 4]) == 'E') { data.set(false); isNull = false; } else { if (oi.isExtendedLiteral()) { if (length == 1) { byte c = bytes.getData()[start]; if (c == '1' || c == 't' || c == 'T') { data.set(true); isNull = false; } else if (c == '0' || c == 'f' || c == 'F') { data.set(false); isNull = false; } else { isNull = true; } } } else { isNull = true; logExceptionMessage(bytes, start, length, "BOOLEAN"); } } } }




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