| /* |
| * 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.phoenix.schema; |
| |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.phoenix.query.QueryConstants; |
| import org.apache.phoenix.util.SchemaUtil; |
| |
| public class PNameFactory { |
| public static int getEstimatedSize(PName name) { |
| return name == null ? 0 : name.getEstimatedSize(); |
| } |
| |
| private PNameFactory() { |
| } |
| |
| public static PName newNormalizedName(String name) { |
| return newName(SchemaUtil.normalizeIdentifier(name)); |
| } |
| |
| public static PName newName(String name) { |
| return name == null || name.isEmpty() ? PName.EMPTY_NAME : |
| name.equals(QueryConstants.EMPTY_COLUMN_NAME ) ? PName.EMPTY_COLUMN_NAME : |
| new PNameImpl(name); |
| } |
| |
| public static PName newName(byte[] bytes) { |
| return bytes == null || bytes.length == 0 ? PName.EMPTY_NAME : |
| Bytes.compareTo(bytes, QueryConstants.EMPTY_COLUMN_BYTES) == 0 ? PName.EMPTY_COLUMN_NAME : |
| new PNameImpl(bytes); |
| } |
| |
| public static PName newName(byte[] bytes, int offset, int length) { |
| if (bytes == null || length == 0) { |
| return PName.EMPTY_NAME; |
| } |
| byte[] buf = new byte[length]; |
| System.arraycopy(bytes, offset, buf, 0, length); |
| return new PNameImpl(buf); |
| } |
| } |