| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/git/checkouts/tantivy-65d0bbbddbbd5d02/433372d/src/postings/json_postings_writer.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>json_postings_writer.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../tantivy/index.html"><div class="logo-container"> |
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| </pre><pre class="rust"><code><span class="kw">use </span>std::io; |
| |
| <span class="kw">use </span><span class="kw">crate</span>::fastfield::MultiValuedFastFieldWriter; |
| <span class="kw">use </span><span class="kw">crate</span>::indexer::doc_id_mapping::DocIdMapping; |
| <span class="kw">use </span><span class="kw">crate</span>::postings::postings_writer::SpecializedPostingsWriter; |
| <span class="kw">use </span><span class="kw">crate</span>::postings::recorder::{BufferLender, DocIdRecorder, Recorder}; |
| <span class="kw">use </span><span class="kw">crate</span>::postings::stacker::Addr; |
| <span class="kw">use </span><span class="kw">crate</span>::postings::{ |
| FieldSerializer, IndexingContext, IndexingPosition, PostingsWriter, UnorderedTermId, |
| }; |
| <span class="kw">use </span><span class="kw">crate</span>::schema::term::as_json_path_type_value_bytes; |
| <span class="kw">use </span><span class="kw">crate</span>::schema::Type; |
| <span class="kw">use </span><span class="kw">crate</span>::tokenizer::TokenStream; |
| <span class="kw">use crate</span>::{DocId, Term}; |
| |
| <span class="attribute">#[derive(Default)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>JsonPostingsWriter<Rec: Recorder> { |
| str_posting_writer: SpecializedPostingsWriter<Rec>, |
| non_str_posting_writer: SpecializedPostingsWriter<DocIdRecorder>, |
| } |
| |
| <span class="kw">impl</span><Rec: Recorder> From<JsonPostingsWriter<Rec>> <span class="kw">for </span>Box<<span class="kw">dyn </span>PostingsWriter> { |
| <span class="kw">fn </span>from(json_postings_writer: JsonPostingsWriter<Rec>) -> Box<<span class="kw">dyn </span>PostingsWriter> { |
| Box::new(json_postings_writer) |
| } |
| } |
| |
| <span class="kw">impl</span><Rec: Recorder> PostingsWriter <span class="kw">for </span>JsonPostingsWriter<Rec> { |
| <span class="kw">fn </span>subscribe( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| doc: <span class="kw">crate</span>::DocId, |
| pos: u32, |
| term: <span class="kw-2">&</span><span class="kw">crate</span>::Term, |
| ctx: <span class="kw-2">&mut </span>IndexingContext, |
| ) -> UnorderedTermId { |
| <span class="self">self</span>.non_str_posting_writer.subscribe(doc, pos, term, ctx) |
| } |
| |
| <span class="kw">fn </span>index_text( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| doc_id: DocId, |
| token_stream: <span class="kw-2">&mut </span><span class="kw">dyn </span>TokenStream, |
| term_buffer: <span class="kw-2">&mut </span>Term, |
| ctx: <span class="kw-2">&mut </span>IndexingContext, |
| indexing_position: <span class="kw-2">&mut </span>IndexingPosition, |
| _fast_field_writer: <span class="prelude-ty">Option</span><<span class="kw-2">&mut </span>MultiValuedFastFieldWriter>, |
| ) { |
| <span class="self">self</span>.str_posting_writer.index_text( |
| doc_id, |
| token_stream, |
| term_buffer, |
| ctx, |
| indexing_position, |
| <span class="prelude-val">None</span>, |
| ); |
| } |
| |
| <span class="doccomment">/// The actual serialization format is handled by the `PostingsSerializer`. |
| </span><span class="kw">fn </span>serialize( |
| <span class="kw-2">&</span><span class="self">self</span>, |
| term_addrs: <span class="kw-2">&</span>[(Term<<span class="kw-2">&</span>[u8]>, Addr, UnorderedTermId)], |
| doc_id_map: <span class="prelude-ty">Option</span><<span class="kw-2">&</span>DocIdMapping>, |
| ctx: <span class="kw-2">&</span>IndexingContext, |
| serializer: <span class="kw-2">&mut </span>FieldSerializer, |
| ) -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>buffer_lender = BufferLender::default(); |
| <span class="kw">for </span>(term, addr, <span class="kw">_</span>) <span class="kw">in </span>term_addrs { |
| <span class="comment">// TODO optimization opportunity here. |
| </span><span class="kw">if let </span><span class="prelude-val">Some</span>((<span class="kw">_</span>, typ, <span class="kw">_</span>)) = as_json_path_type_value_bytes(term.value_bytes()) { |
| <span class="kw">if </span>typ == Type::Str { |
| SpecializedPostingsWriter::<Rec>::serialize_one_term( |
| term, |
| <span class="kw-2">*</span>addr, |
| doc_id_map, |
| <span class="kw-2">&mut </span>buffer_lender, |
| ctx, |
| serializer, |
| )<span class="question-mark">?</span>; |
| } <span class="kw">else </span>{ |
| SpecializedPostingsWriter::<DocIdRecorder>::serialize_one_term( |
| term, |
| <span class="kw-2">*</span>addr, |
| doc_id_map, |
| <span class="kw-2">&mut </span>buffer_lender, |
| ctx, |
| serializer, |
| )<span class="question-mark">?</span>; |
| } |
| } |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>total_num_tokens(<span class="kw-2">&</span><span class="self">self</span>) -> u64 { |
| <span class="self">self</span>.str_posting_writer.total_num_tokens() + <span class="self">self</span>.non_str_posting_writer.total_num_tokens() |
| } |
| } |
| </code></pre></div> |
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