| /* |
| * 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.orc.impl; |
| |
| import org.apache.orc.DataMaskDescription; |
| import org.apache.orc.OrcProto; |
| import org.apache.orc.TypeDescription; |
| import org.apache.orc.DataMask; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| public class MaskDescriptionImpl implements DataMaskDescription, |
| Comparable<MaskDescriptionImpl> { |
| private int id; |
| private final String name; |
| private final String[] parameters; |
| private final Set<TypeDescription> columns = new HashSet<>(); |
| |
| public MaskDescriptionImpl(String name, |
| String... parameters) { |
| this.name = name; |
| this.parameters = parameters == null ? new String[0] : parameters; |
| } |
| |
| public MaskDescriptionImpl(int id, |
| OrcProto.DataMask mask) { |
| this.id = id; |
| this.name = mask.getName(); |
| this.parameters = new String[mask.getMaskParametersCount()]; |
| for(int p=0; p < parameters.length; ++p) { |
| parameters[p] = mask.getMaskParameters(p); |
| } |
| |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other == null || other.getClass() != getClass()) { |
| return false; |
| } else { |
| return compareTo((MaskDescriptionImpl) other) == 0; |
| } |
| } |
| |
| public void addColumn(TypeDescription column) { |
| columns.add(column); |
| } |
| |
| public void setId(int id) { |
| this.id = id; |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public String[] getParameters() { |
| return parameters; |
| } |
| |
| @Override |
| public TypeDescription[] getColumns() { |
| TypeDescription[] result = columns.toArray(new TypeDescription[columns.size()]); |
| // sort the columns by their ids |
| Arrays.sort(result, Comparator.comparingInt(TypeDescription::getId)); |
| return result; |
| } |
| |
| public int getId() { |
| return id; |
| } |
| |
| public DataMask create(TypeDescription schema, |
| DataMask.MaskOverrides overrides) { |
| return DataMask.Factory.build(this, schema, overrides); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder buffer = new StringBuilder(); |
| buffer.append("mask "); |
| buffer.append(getName()); |
| buffer.append('('); |
| String[] parameters = getParameters(); |
| if (parameters != null) { |
| for(int p=0; p < parameters.length; ++p) { |
| if (p != 0) { |
| buffer.append(", "); |
| } |
| buffer.append(parameters[p]); |
| } |
| } |
| buffer.append(')'); |
| return buffer.toString(); |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = name.hashCode(); |
| for (String p: parameters) { |
| result = result * 101 + p.hashCode(); |
| } |
| return result; |
| } |
| |
| @Override |
| public int compareTo(@NotNull MaskDescriptionImpl other) { |
| if (other == this) { |
| return 0; |
| } |
| int result = name.compareTo(other.name); |
| int p = 0; |
| while (result == 0 && |
| p < parameters.length && p < other.parameters.length) { |
| result = parameters[p].compareTo(other.parameters[p]); |
| p += 1; |
| } |
| if (result == 0) { |
| result = Integer.compare(parameters.length, other.parameters.length); |
| } |
| return result; |
| } |
| } |
| |