| /* |
| * 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.flink.table.typeutils; |
| |
| import org.apache.flink.api.common.ExecutionConfig; |
| import org.apache.flink.api.common.typeinfo.TypeInformation; |
| import org.apache.flink.api.common.typeutils.CompositeType; |
| import org.apache.flink.api.common.typeutils.TypeComparator; |
| import org.apache.flink.api.common.typeutils.TypeSerializer; |
| import org.apache.flink.api.java.typeutils.TupleTypeInfoBase; |
| import org.apache.flink.table.api.types.RowType; |
| import org.apache.flink.table.api.types.TypeConverters; |
| import org.apache.flink.table.dataformat.BaseRow; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| |
| import static org.apache.flink.util.Preconditions.checkArgument; |
| import static org.apache.flink.util.Preconditions.checkNotNull; |
| |
| /** |
| * Base row type info. |
| */ |
| public class BaseRowTypeInfo extends TupleTypeInfoBase<BaseRow> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| protected final String[] fieldNames; |
| |
| public BaseRowTypeInfo(TypeInformation<?>... types) { |
| this(types, getFieldNames(types)); |
| } |
| |
| public BaseRowTypeInfo(TypeInformation<?>[] types, String[] fieldNames) { |
| super(BaseRow.class, types); |
| checkNotNull(fieldNames, "FieldNames should not be null."); |
| checkArgument( |
| types.length == fieldNames.length, |
| "Number of field types and names is different."); |
| checkArgument( |
| !hasDuplicateFieldNames(fieldNames), |
| "Field names are not unique."); |
| this.fieldNames = Arrays.copyOf(fieldNames, fieldNames.length); |
| } |
| |
| private static String[] getFieldNames(TypeInformation<?>[] types) { |
| String[] fieldNames = new String[types.length]; |
| for (int i = 0; i < types.length; i++) { |
| fieldNames[i] = "f" + i; |
| } |
| return fieldNames; |
| } |
| |
| @Override |
| public <X> TypeInformation<X> getTypeAt(String fieldExpression) { |
| throw new UnsupportedOperationException("Not support!"); |
| } |
| |
| @Override |
| public TypeComparator<BaseRow> createComparator( |
| int[] logicalKeyFields, |
| boolean[] orders, |
| int logicalFieldOffset, |
| ExecutionConfig config) { |
| return new BaseRowComparator(types, orders[0]); |
| } |
| |
| @Override |
| public String[] getFieldNames() { |
| return fieldNames; |
| } |
| |
| @Override |
| public int getFieldIndex(String fieldName) { |
| for (int i = 0; i < fieldNames.length; i++) { |
| if (fieldNames[i].equals(fieldName)) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| @Override |
| public boolean canEqual(Object obj) { |
| return obj instanceof BaseRowTypeInfo; |
| } |
| |
| @Override |
| public int hashCode() { |
| return 31 * super.hashCode() + Arrays.hashCode(fieldNames); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder bld = new StringBuilder("Row"); |
| if (types.length > 0) { |
| bld.append('(').append(fieldNames[0]).append(": ").append(types[0]); |
| |
| for (int i = 1; i < types.length; i++) { |
| bld.append(", ").append(fieldNames[i]).append(": ").append(types[i]); |
| } |
| |
| bld.append(')'); |
| } |
| return bld.toString(); |
| } |
| |
| /** |
| * Returns the field types of the row. The order matches the order of the field names. |
| */ |
| public TypeInformation<?>[] getFieldTypes() { |
| return types; |
| } |
| |
| private boolean hasDuplicateFieldNames(String[] fieldNames) { |
| HashSet<String> names = new HashSet<>(); |
| for (String field : fieldNames) { |
| if (!names.add(field)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public CompositeType.TypeComparatorBuilder<BaseRow> createTypeComparatorBuilder() { |
| throw new UnsupportedOperationException("Not support!"); |
| } |
| |
| @Override |
| public TypeSerializer<BaseRow> createSerializer(ExecutionConfig config) { |
| return createSerializer(); |
| } |
| |
| public AbstractRowSerializer<BaseRow> createSerializer() { |
| return new BaseRowSerializer<>(getTypeClass(), types); |
| } |
| |
| public RowType toInternalType() { |
| return (RowType) TypeConverters.createInternalTypeFromTypeInfo(this); |
| } |
| |
| /** |
| * UnionTransform will invoke this to BinaryRowTypeInfo, |
| * so we need override it to not compare type class. |
| */ |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof BaseRowTypeInfo) { |
| BaseRowTypeInfo other = (BaseRowTypeInfo) obj; |
| return Arrays.equals(this.types, other.types); |
| } |
| return false; |
| } |
| } |