apache-arrow
Version:
Apache Arrow columnar in-memory format
98 lines (96 loc) • 3.74 kB
JavaScript
// automatically generated by the FlatBuffers compiler, do not modify
import * as flatbuffers from 'flatbuffers';
import { KeyValue } from './key-value.mjs';
import { MessageHeader } from './message-header.mjs';
import { MetadataVersion } from './metadata-version.mjs';
export class Message {
constructor() {
this.bb = null;
this.bb_pos = 0;
}
__init(i, bb) {
this.bb_pos = i;
this.bb = bb;
return this;
}
static getRootAsMessage(bb, obj) {
return (obj || new Message()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
}
static getSizePrefixedRootAsMessage(bb, obj) {
bb.setPosition(bb.position() + flatbuffers.SIZE_PREFIX_LENGTH);
return (obj || new Message()).__init(bb.readInt32(bb.position()) + bb.position(), bb);
}
version() {
const offset = this.bb.__offset(this.bb_pos, 4);
return offset ? this.bb.readInt16(this.bb_pos + offset) : MetadataVersion.V1;
}
headerType() {
const offset = this.bb.__offset(this.bb_pos, 6);
return offset ? this.bb.readUint8(this.bb_pos + offset) : MessageHeader.NONE;
}
// @ts-ignore
header(obj) {
const offset = this.bb.__offset(this.bb_pos, 8);
return offset ? this.bb.__union(obj, this.bb_pos + offset) : null;
}
bodyLength() {
const offset = this.bb.__offset(this.bb_pos, 10);
return offset ? this.bb.readInt64(this.bb_pos + offset) : this.bb.createLong(0, 0);
}
customMetadata(index, obj) {
const offset = this.bb.__offset(this.bb_pos, 12);
return offset ? (obj || new KeyValue()).__init(this.bb.__indirect(this.bb.__vector(this.bb_pos + offset) + index * 4), this.bb) : null;
}
customMetadataLength() {
const offset = this.bb.__offset(this.bb_pos, 12);
return offset ? this.bb.__vector_len(this.bb_pos + offset) : 0;
}
static startMessage(builder) {
builder.startObject(5);
}
static addVersion(builder, version) {
builder.addFieldInt16(0, version, MetadataVersion.V1);
}
static addHeaderType(builder, headerType) {
builder.addFieldInt8(1, headerType, MessageHeader.NONE);
}
static addHeader(builder, headerOffset) {
builder.addFieldOffset(2, headerOffset, 0);
}
static addBodyLength(builder, bodyLength) {
builder.addFieldInt64(3, bodyLength, builder.createLong(0, 0));
}
static addCustomMetadata(builder, customMetadataOffset) {
builder.addFieldOffset(4, customMetadataOffset, 0);
}
static createCustomMetadataVector(builder, data) {
builder.startVector(4, data.length, 4);
for (let i = data.length - 1; i >= 0; i--) {
builder.addOffset(data[i]);
}
return builder.endVector();
}
static startCustomMetadataVector(builder, numElems) {
builder.startVector(4, numElems, 4);
}
static endMessage(builder) {
const offset = builder.endObject();
return offset;
}
static finishMessageBuffer(builder, offset) {
builder.finish(offset);
}
static finishSizePrefixedMessageBuffer(builder, offset) {
builder.finish(offset, undefined, true);
}
static createMessage(builder, version, headerType, headerOffset, bodyLength, customMetadataOffset) {
Message.startMessage(builder);
Message.addVersion(builder, version);
Message.addHeaderType(builder, headerType);
Message.addHeader(builder, headerOffset);
Message.addBodyLength(builder, bodyLength);
Message.addCustomMetadata(builder, customMetadataOffset);
return Message.endMessage(builder);
}
}
//# sourceMappingURL=message.mjs.map