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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "predicate.h"
#include "predicate_slime_builder.h"
using vespalib::Slime;
using vespalib::slime::ArrayInserter;
using vespalib::slime::Cursor;
namespace document {
PredicateSlimeBuilder::PredicateSlimeBuilder()
: _slime(new Slime),
_cursor(&_slime->setObject()) {
}
PredicateSlimeBuilder &PredicateSlimeBuilder::feature(const std::string &key) {
_cursor->setString(Predicate::KEY, key);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::value(const std::string &val) {
_cursor->setLong(Predicate::NODE_TYPE, Predicate::TYPE_FEATURE_SET);
Cursor *arr = &(*_cursor)[Predicate::SET];
if (!arr->valid()) {
arr = &_cursor->setArray(Predicate::SET);
}
arr->addString(val);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::range(int64_t lower,
int64_t upper) {
_cursor->setLong(Predicate::NODE_TYPE, Predicate::TYPE_FEATURE_RANGE);
_cursor->setLong(Predicate::RANGE_MIN, lower);
_cursor->setLong(Predicate::RANGE_MAX, upper);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::greaterEqual(int64_t lower) {
_cursor->setLong(Predicate::NODE_TYPE, Predicate::TYPE_FEATURE_RANGE);
_cursor->setLong(Predicate::RANGE_MIN, lower);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::lessEqual(int64_t upper) {
_cursor->setLong(Predicate::NODE_TYPE, Predicate::TYPE_FEATURE_RANGE);
_cursor->setLong(Predicate::RANGE_MAX, upper);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::neg() {
_cursor->setLong(Predicate::NODE_TYPE, Predicate::TYPE_NEGATION);
_cursor = &_cursor->setArray(Predicate::CHILDREN).addObject();
return *this;
}
namespace {
template <typename InitList>
void intermediateNode(long type, InitList list, Cursor &cursor) {
cursor.setLong(Predicate::NODE_TYPE, type);
Cursor &arr = cursor.setArray(Predicate::CHILDREN);
for (auto it = list.begin(); it != list.end(); ++it) {
inject((*it)->get(), ArrayInserter(arr));
}
}
} // namespace
PredicateSlimeBuilder &PredicateSlimeBuilder::and_node(
std::initializer_list<SlimeUP> list) {
intermediateNode(Predicate::TYPE_CONJUNCTION, list, *_cursor);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::or_node(
std::initializer_list<SlimeUP> list) {
intermediateNode(Predicate::TYPE_DISJUNCTION, list, *_cursor);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::and_node(SlimeUP s1,
SlimeUP s2) {
return and_node({std::move(s1), std::move(s2)});
}
PredicateSlimeBuilder &PredicateSlimeBuilder::or_node(SlimeUP s1, SlimeUP s2) {
return or_node({std::move(s1), std::move(s2)});
}
PredicateSlimeBuilder &PredicateSlimeBuilder::true_predicate() {
_cursor->setLong(Predicate::NODE_TYPE, Predicate::TYPE_TRUE);
return *this;
}
PredicateSlimeBuilder &PredicateSlimeBuilder::false_predicate() {
_cursor->setLong(Predicate::NODE_TYPE, Predicate::TYPE_FALSE);
return *this;
}
std::unique_ptr<vespalib::Slime> PredicateSlimeBuilder::build() {
std::unique_ptr<Slime> s = std::move(_slime);
_slime.reset(new Slime);
_cursor = &_slime->setObject();
return s;
}
namespace predicate_slime_builder {
SlimeUP featureSet(const std::string &key,
const std::initializer_list<std::string> &values) {
SlimeUP slime(new Slime);
Cursor &cursor = slime->setObject();
cursor.setLong(Predicate::NODE_TYPE, Predicate::TYPE_FEATURE_SET);
cursor.setString(Predicate::KEY, key);
Cursor &arr = cursor.setArray(Predicate::SET);
for (const auto &value : values) {
arr.addString(value);
}
return slime;
}
SlimeUP emptyRange(const std::string &key) {
SlimeUP slime(new Slime);
Cursor &cursor = slime->setObject();
cursor.setLong(Predicate::NODE_TYPE, Predicate::TYPE_FEATURE_RANGE);
cursor.setString(Predicate::KEY, key);
return slime;
}
SlimeUP featureRange(const std::string &key, int64_t lower, int64_t upper) {
SlimeUP slime = emptyRange(key);
Cursor &cursor = slime->get();
cursor.setLong(Predicate::RANGE_MIN, lower);
cursor.setLong(Predicate::RANGE_MAX, upper);
return slime;
}
SlimeUP greaterEqual(const std::string &key, int64_t lower) {
SlimeUP slime = emptyRange(key);
Cursor &cursor = slime->get();
cursor.setLong(Predicate::RANGE_MIN, lower);
return slime;
}
SlimeUP lessEqual(const std::string &key, int64_t upper) {
SlimeUP slime = emptyRange(key);
Cursor &cursor = slime->get();
cursor.setLong(Predicate::RANGE_MAX, upper);
return slime;
}
SlimeUP neg(SlimeUP child) {
SlimeUP slime(new Slime);
Cursor &cursor = slime->setObject();
cursor.setLong(Predicate::NODE_TYPE, Predicate::TYPE_NEGATION);
Cursor &arr = cursor.setArray(Predicate::CHILDREN);
inject(child->get(), ArrayInserter(arr));
return slime;
}
SlimeUP andNode(const std::initializer_list<SlimeUP> &children) {
SlimeUP slime(new Slime);
Cursor &cursor = slime->setObject();
cursor.setLong(Predicate::NODE_TYPE, Predicate::TYPE_CONJUNCTION);
Cursor &arr = cursor.setArray(Predicate::CHILDREN);
for (const auto &child : children) {
inject(child->get(), ArrayInserter(arr));
}
return slime;
}
SlimeUP orNode(const std::initializer_list<SlimeUP> &children) {
SlimeUP slime(new Slime);
Cursor &cursor = slime->setObject();
cursor.setLong(Predicate::NODE_TYPE, Predicate::TYPE_DISJUNCTION);
Cursor &arr = cursor.setArray(Predicate::CHILDREN);
for (const auto &child : children) {
inject(child->get(), ArrayInserter(arr));
}
return slime;
}
SlimeUP truePredicate() {
SlimeUP slime(new Slime);
Cursor &cursor = slime->setObject();
cursor.setLong(Predicate::NODE_TYPE, Predicate::TYPE_TRUE);
return slime;
}
SlimeUP falsePredicate() {
SlimeUP slime(new Slime);
Cursor &cursor = slime->setObject();
cursor.setLong(Predicate::NODE_TYPE, Predicate::TYPE_FALSE);
return slime;
}
} // namespace predicate_slime_builder
} // namespace document
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