-
Notifications
You must be signed in to change notification settings - Fork 3.3k
/
ArrowType.java
375 lines (323 loc) · 11.9 KB
/
ArrowType.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
/*
* 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.
*/
<@pp.dropOutputFile />
<@pp.changeOutputFile name="/org/apache/arrow/vector/types/pojo/ArrowType.java" />
<#include "/@includes/license.ftl" />
package org.apache.arrow.vector.types.pojo;
import com.google.flatbuffers.FlatBufferBuilder;
import java.util.Objects;
import org.apache.arrow.flatbuf.Type;
import org.apache.arrow.memory.BufferAllocator;
import org.apache.arrow.vector.types.*;
import org.apache.arrow.vector.FieldVector;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
/**
* Arrow types
* Source code generated using FreeMarker template ${.template_name}
**/
@JsonTypeInfo(
use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "name")
@JsonSubTypes({
<#list arrowTypes.types as type>
@JsonSubTypes.Type(value = ArrowType.${type.name?remove_ending("_")}.class, name = "${type.name?remove_ending("_")?lower_case}"),
</#list>
})
public abstract class ArrowType {
public static abstract class PrimitiveType extends ArrowType {
private PrimitiveType() {
}
@Override
public boolean isComplex() {
return false;
}
}
public static abstract class ComplexType extends ArrowType {
private ComplexType() {
}
@Override
public boolean isComplex() {
return true;
}
}
public static enum ArrowTypeID {
<#list arrowTypes.types as type>
<#assign name = type.name>
${name?remove_ending("_")}(Type.${name}),
</#list>
NONE(Type.NONE);
private final byte flatbufType;
public byte getFlatbufID() {
return this.flatbufType;
}
private ArrowTypeID(byte flatbufType) {
this.flatbufType = flatbufType;
}
}
@JsonIgnore
public abstract ArrowTypeID getTypeID();
@JsonIgnore
public abstract boolean isComplex();
public abstract int getType(FlatBufferBuilder builder);
public abstract <T> T accept(ArrowTypeVisitor<T> visitor);
/**
* to visit the ArrowTypes
* <code>
* type.accept(new ArrowTypeVisitor<Type>() {
* ...
* });
* </code>
*/
public static interface ArrowTypeVisitor<T> {
<#list arrowTypes.types as type>
T visit(${type.name?remove_ending("_")} type);
</#list>
default T visit(ExtensionType type) {
return type.storageType().accept(this);
}
}
/**
* to visit the Complex ArrowTypes and bundle Primitive ones in one case
*/
public static abstract class ComplexTypeVisitor<T> implements ArrowTypeVisitor<T> {
public T visit(PrimitiveType type) {
throw new UnsupportedOperationException("Unexpected Primitive type: " + type);
}
<#list arrowTypes.types as type>
<#if !type.complex>
public final T visit(${type.name?remove_ending("_")} type) {
return visit((PrimitiveType) type);
}
</#if>
</#list>
}
/**
* to visit the Primitive ArrowTypes and bundle Complex ones under one case
*/
public static abstract class PrimitiveTypeVisitor<T> implements ArrowTypeVisitor<T> {
public T visit(ComplexType type) {
throw new UnsupportedOperationException("Unexpected Complex type: " + type);
}
<#list arrowTypes.types as type>
<#if type.complex>
public final T visit(${type.name?remove_ending("_")} type) {
return visit((ComplexType) type);
}
</#if>
</#list>
}
<#list arrowTypes.types as type>
<#assign name = type.name?remove_ending("_")>
<#assign fields = type.fields>
public static class ${name} extends <#if type.complex>ComplexType<#else>PrimitiveType</#if> {
public static final ArrowTypeID TYPE_TYPE = ArrowTypeID.${name};
<#if type.fields?size == 0>
public static final ${name} INSTANCE = new ${name}();
<#else>
<#list fields as field>
<#assign fieldType = field.valueType!field.type>
${fieldType} ${field.name};
</#list>
<#if type.name == "Decimal">
// Needed to support golden file integration tests.
@JsonCreator
public static Decimal createDecimal(
@JsonProperty("precision") int precision,
@JsonProperty("scale") int scale,
@JsonProperty("bitWidth") Integer bitWidth) {
return new Decimal(precision, scale, bitWidth == null ? 128 : bitWidth);
}
/**
* Construct Decimal with 128 bits.
*
* This is kept mainly for the sake of backward compatibility.
* Please use {@link org.apache.arrow.vector.types.pojo.ArrowType.Decimal#Decimal(int, int, int)} instead.
*
* @deprecated This API will be removed in a future release.
*/
@Deprecated
public Decimal(int precision, int scale) {
this(precision, scale, 128);
}
<#else>
@JsonCreator
</#if>
public ${type.name}(
<#list type.fields as field>
<#assign fieldType = field.valueType!field.type>
@JsonProperty("${field.name}") ${fieldType} ${field.name}<#if field_has_next>, </#if>
</#list>
) {
<#list type.fields as field>
this.${field.name} = ${field.name};
</#list>
}
<#list fields as field>
<#assign fieldType = field.valueType!field.type>
public ${fieldType} get${field.name?cap_first}() {
return ${field.name};
}
</#list>
</#if>
@Override
public ArrowTypeID getTypeID() {
return TYPE_TYPE;
}
@Override
public int getType(FlatBufferBuilder builder) {
<#list type.fields as field>
<#if field.type == "String">
int ${field.name} = this.${field.name} == null ? -1 : builder.createString(this.${field.name});
</#if>
<#if field.type == "int[]">
int ${field.name} = this.${field.name} == null ? -1 : org.apache.arrow.flatbuf.${type.name}.create${field.name?cap_first}Vector(builder, this.${field.name});
</#if>
</#list>
org.apache.arrow.flatbuf.${type.name}.start${type.name}(builder);
<#list type.fields as field>
<#if field.type == "String" || field.type == "int[]">
if (this.${field.name} != null) {
org.apache.arrow.flatbuf.${type.name}.add${field.name?cap_first}(builder, ${field.name});
}
<#else>
org.apache.arrow.flatbuf.${type.name}.add${field.name?cap_first}(builder, this.${field.name}<#if field.valueType??>.getFlatbufID()</#if>);
</#if>
</#list>
return org.apache.arrow.flatbuf.${type.name}.end${type.name}(builder);
}
public String toString() {
return "${name}"
<#if fields?size != 0>
+ "("
<#list fields as field>
+ <#if field.type == "int[]">java.util.Arrays.toString(${field.name})<#else>${field.name}</#if><#if field_has_next> + ", " </#if>
</#list>
+ ")"
</#if>
;
}
@Override
public int hashCode() {
return java.util.Arrays.deepHashCode(new Object[] {<#list type.fields as field>${field.name}<#if field_has_next>, </#if></#list>});
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof ${name})) {
return false;
}
<#if type.fields?size == 0>
return true;
<#else>
${type.name} that = (${type.name}) obj;
return <#list type.fields as field>Objects.deepEquals(this.${field.name}, that.${field.name}) <#if field_has_next>&&<#else>;</#if>
</#list>
</#if>
}
@Override
public <T> T accept(ArrowTypeVisitor<T> visitor) {
return visitor.visit(this);
}
}
</#list>
/**
* A user-defined data type that wraps an underlying storage type.
*/
public abstract static class ExtensionType extends ComplexType {
/** The on-wire type for this user-defined type. */
public abstract ArrowType storageType();
/** The name of this user-defined type. Used to identify the type during serialization. */
public abstract String extensionName();
/** Check equality of this type to another user-defined type. */
public abstract boolean extensionEquals(ExtensionType other);
/** Save any metadata for this type. */
public abstract String serialize();
/** Given saved metadata and the underlying storage type, construct a new instance of the user type. */
public abstract ArrowType deserialize(ArrowType storageType, String serializedData);
/** Construct a vector for the user type. */
public abstract FieldVector getNewVector(String name, FieldType fieldType, BufferAllocator allocator);
/** The field metadata key storing the name of the extension type. */
public static final String EXTENSION_METADATA_KEY_NAME = "ARROW:extension:name";
/** The field metadata key storing metadata for the extension type. */
public static final String EXTENSION_METADATA_KEY_METADATA = "ARROW:extension:metadata";
@Override
public ArrowTypeID getTypeID() {
return storageType().getTypeID();
}
@Override
public int getType(FlatBufferBuilder builder) {
return storageType().getType(builder);
}
public String toString() {
return "ExtensionType(" + extensionName() + ", " + storageType().toString() + ")";
}
@Override
public int hashCode() {
return java.util.Arrays.deepHashCode(new Object[] {storageType(), extensionName()});
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof ExtensionType)) {
return false;
}
return this.extensionEquals((ExtensionType) obj);
}
@Override
public <T> T accept(ArrowTypeVisitor<T> visitor) {
return visitor.visit(this);
}
}
private static final int defaultDecimalBitWidth = 128;
public static org.apache.arrow.vector.types.pojo.ArrowType getTypeForField(org.apache.arrow.flatbuf.Field field) {
switch(field.typeType()) {
<#list arrowTypes.types as type>
<#assign name = type.name?remove_ending("_")>
<#assign nameLower = type.name?lower_case>
<#assign fields = type.fields>
case Type.${type.name}: {
org.apache.arrow.flatbuf.${type.name} ${nameLower}Type = (org.apache.arrow.flatbuf.${type.name}) field.type(new org.apache.arrow.flatbuf.${type.name}());
<#list type.fields as field>
<#if field.type == "int[]">
${field.type} ${field.name} = new int[${nameLower}Type.${field.name}Length()];
for (int i = 0; i< ${field.name}.length; ++i) {
${field.name}[i] = ${nameLower}Type.${field.name}(i);
}
<#else>
${field.type} ${field.name} = ${nameLower}Type.${field.name}();
</#if>
</#list>
<#if type.name == "Decimal">
if (bitWidth != defaultDecimalBitWidth && bitWidth != 256) {
throw new IllegalArgumentException("Library only supports 128-bit and 256-bit decimal values");
}
</#if>
return new ${name}(<#list type.fields as field><#if field.valueType??>${field.valueType}.fromFlatbufID(${field.name})<#else>${field.name}</#if><#if field_has_next>, </#if></#list>);
}
</#list>
default:
throw new UnsupportedOperationException("Unsupported type: " + field.typeType());
}
}
public static Int getInt(org.apache.arrow.flatbuf.Field field) {
org.apache.arrow.flatbuf.Int intType = (org.apache.arrow.flatbuf.Int) field.type(new org.apache.arrow.flatbuf.Int());
return new Int(intType.bitWidth(), intType.isSigned());
}
}