| /* |
| * 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 java.util.List; |
| import java.util.Map; |
| |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.phoenix.util.SchemaUtil; |
| import org.apache.phoenix.util.SizedUtil; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSortedMap; |
| |
| public class PColumnFamilyImpl implements PColumnFamily { |
| private final PName name; |
| private final List<PColumn> columns; |
| private final Map<String, PColumn> columnNamesByStrings; |
| private final Map<byte[], PColumn> columnNamesByBytes; |
| private final Map<byte[], PColumn> columnsByQualifiers; |
| private final int estimatedSize; |
| |
| @Override |
| public int getEstimatedSize() { |
| return estimatedSize; |
| } |
| |
| public PColumnFamilyImpl(PName name, List<PColumn> columns) { |
| Preconditions.checkNotNull(name); |
| // Include guidePosts also in estimating the size |
| long estimatedSize = SizedUtil.OBJECT_SIZE + SizedUtil.POINTER_SIZE * 5 + SizedUtil.INT_SIZE + name.getEstimatedSize() + |
| SizedUtil.sizeOfMap(columns.size()) * 2 + SizedUtil.sizeOfArrayList(columns.size()); |
| this.name = name; |
| this.columns = ImmutableList.copyOf(columns); |
| ImmutableMap.Builder<String, PColumn> columnNamesByStringBuilder = ImmutableMap.builder(); |
| ImmutableSortedMap.Builder<byte[], PColumn> columnNamesByBytesBuilder = ImmutableSortedMap.orderedBy(Bytes.BYTES_COMPARATOR); |
| ImmutableSortedMap.Builder<byte[], PColumn> columnsByQualifiersBuilder = ImmutableSortedMap.orderedBy(Bytes.BYTES_COMPARATOR); |
| for (PColumn column : columns) { |
| estimatedSize += column.getEstimatedSize(); |
| columnNamesByBytesBuilder.put(column.getName().getBytes(), column); |
| columnNamesByStringBuilder.put(column.getName().getString(), column); |
| // In certain cases like JOIN, PK columns are assigned a column family. So they |
| // are not evaluated as a PK column. However, their column qualifier bytes are |
| // still null. |
| if (!SchemaUtil.isPKColumn(column) && column.getColumnQualifierBytes() != null) { |
| columnsByQualifiersBuilder.put(column.getColumnQualifierBytes(), column); |
| } |
| } |
| this.columnNamesByBytes = columnNamesByBytesBuilder.build(); |
| this.columnNamesByStrings = columnNamesByStringBuilder.build(); |
| this.columnsByQualifiers = columnsByQualifiersBuilder.build(); |
| this.estimatedSize = (int)estimatedSize; |
| } |
| |
| @Override |
| public PName getName() { |
| return name; |
| } |
| |
| @Override |
| public List<PColumn> getColumns() { |
| return columns; |
| } |
| |
| @Override |
| public PColumn getPColumnForColumnNameBytes(byte[] columnNameBytes) throws ColumnNotFoundException { |
| PColumn column = columnNamesByBytes.get(columnNameBytes); |
| if (column == null) { |
| throw new ColumnNotFoundException(Bytes.toString(columnNameBytes)); |
| } |
| return column; |
| } |
| |
| @Override |
| public PColumn getPColumnForColumnName(String columnName) throws ColumnNotFoundException { |
| PColumn column = columnNamesByStrings.get(columnName); |
| if (column == null) { |
| throw new ColumnNotFoundException(columnName); |
| } |
| return column; |
| } |
| |
| |
| //TODO: samarth think about backward compatibility here |
| @Override |
| public PColumn getPColumnForColumnQualifier(byte[] cq) throws ColumnNotFoundException { |
| Preconditions.checkNotNull(cq); |
| return columnsByQualifiers.get(cq); |
| } |
| } |