/* 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.
*/
#define C_LUCY_COMPILER
#include "Lucy/Util/ToolSet.h"
#include "Lucy/Search/Compiler.h"
#include "Lucy/Index/SegReader.h"
#include "Lucy/Index/DocVector.h"
#include "Lucy/Index/Similarity.h"
#include "Lucy/Plan/Schema.h"
#include "Lucy/Search/Matcher.h"
#include "Lucy/Search/Query.h"
#include "Lucy/Search/Searcher.h"
#include "Lucy/Store/InStream.h"
#include "Lucy/Store/OutStream.h"
#include "Lucy/Util/Freezer.h"
Compiler*
Compiler_init(Compiler *self, Query *parent, Searcher *searcher,
Similarity *sim, float boost) {
Query_init((Query*)self, boost);
if (!sim) {
Schema *schema = Searcher_Get_Schema(searcher);
sim = Schema_Get_Similarity(schema);
}
self->parent = (Query*)INCREF(parent);
self->sim = (Similarity*)INCREF(sim);
ABSTRACT_CLASS_CHECK(self, COMPILER);
return self;
}
void
Compiler_destroy(Compiler *self) {
DECREF(self->parent);
DECREF(self->sim);
SUPER_DESTROY(self, COMPILER);
}
float
Compiler_get_weight(Compiler *self) {
return Compiler_Get_Boost(self);
}
Similarity*
Compiler_get_similarity(Compiler *self) {
return self->sim;
}
Query*
Compiler_get_parent(Compiler *self) {
return self->parent;
}
float
Compiler_sum_of_squared_weights(Compiler *self) {
UNUSED_VAR(self);
return 1.0f;
}
void
Compiler_apply_norm_factor(Compiler *self, float factor) {
UNUSED_VAR(self);
UNUSED_VAR(factor);
}
void
Compiler_normalize(Compiler *self) {
// factor = (tf_q * idf_t)
float factor = Compiler_Sum_Of_Squared_Weights(self);
// factor /= norm_q
factor = Sim_Query_Norm(self->sim, factor);
// weight *= factor
Compiler_Apply_Norm_Factor(self, factor);
}
VArray*
Compiler_highlight_spans(Compiler *self, Searcher *searcher,
DocVector *doc_vec, const CharBuf *field) {
UNUSED_VAR(self);
UNUSED_VAR(searcher);
UNUSED_VAR(doc_vec);
UNUSED_VAR(field);
return VA_new(0);
}
CharBuf*
Compiler_to_string(Compiler *self) {
CharBuf *stringified_query = Query_To_String(self->parent);
CharBuf *string = CB_new_from_trusted_utf8("compiler(", 9);
CB_Cat(string, stringified_query);
CB_Cat_Trusted_Str(string, ")", 1);
DECREF(stringified_query);
return string;
}
bool_t
Compiler_equals(Compiler *self, Obj *other) {
Compiler *twin = (Compiler*)other;
if (twin == self) { return true; }
if (!Obj_Is_A(other, COMPILER)) { return false; }
if (self->boost != twin->boost) { return false; }
if (!Query_Equals(self->parent, (Obj*)twin->parent)) { return false; }
if (!Sim_Equals(self->sim, (Obj*)twin->sim)) { return false; }
return true;
}
void
Compiler_serialize(Compiler *self, OutStream *outstream) {
ABSTRACT_CLASS_CHECK(self, COMPILER);
OutStream_Write_F32(outstream, self->boost);
FREEZE(self->parent, outstream);
FREEZE(self->sim, outstream);
}
Compiler*
Compiler_deserialize(Compiler *self, InStream *instream) {
if (!self) { THROW(ERR, "Compiler_Deserialize is abstract"); }
self->boost = InStream_Read_F32(instream);
self->parent = (Query*)THAW(instream);
self->sim = (Similarity*)THAW(instream);
return self;
}