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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.
*/
package org.elasticsearch.search.suggest.completion.context;
import org.elasticsearch.ElasticsearchParseException;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.xcontent.*;
import java.io.IOException;
import static org.elasticsearch.search.suggest.completion.context.CategoryContextMapping.CONTEXT_BOOST;
import static org.elasticsearch.search.suggest.completion.context.CategoryContextMapping.CONTEXT_PREFIX;
import static org.elasticsearch.search.suggest.completion.context.CategoryContextMapping.CONTEXT_VALUE;
/**
* Defines the query context for {@link CategoryContextMapping}
*/
public final class CategoryQueryContext implements ToXContent {
public CharSequence context;
public boolean isPrefix = false;
public int boost = 1;
/**
* Creates a query context with a provided context and a
* boost of 1
*/
public CategoryQueryContext(CharSequence context) {
this(context, 1);
}
/**
* Creates a query context with a provided context and boost
*/
public CategoryQueryContext(CharSequence context, int boost) {
this(context, boost, false);
}
/**
* Creates a query context with a provided context and boost
* Allows specifying whether the context should be treated as
* a prefix or not
*/
public CategoryQueryContext(CharSequence context, int boost, boolean isPrefix) {
this.context = context;
this.boost = boost;
this.isPrefix = isPrefix;
}
private CategoryQueryContext() {
}
void setContext(CharSequence context) {
this.context = context;
}
void setIsPrefix(boolean isPrefix) {
this.isPrefix = isPrefix;
}
void setBoost(int boost) {
this.boost = boost;
}
private static ObjectParser<CategoryQueryContext, CategoryContextMapping> CATEGORY_PARSER = new ObjectParser<>("category", null);
static {
CATEGORY_PARSER.declareString(CategoryQueryContext::setContext, new ParseField("context"));
CATEGORY_PARSER.declareInt(CategoryQueryContext::setBoost, new ParseField("boost"));
CATEGORY_PARSER.declareBoolean(CategoryQueryContext::setIsPrefix, new ParseField("prefix"));
}
public static CategoryQueryContext parse(XContentParser parser) throws IOException {
XContentParser.Token token = parser.currentToken();
CategoryQueryContext queryContext = new CategoryQueryContext();
if (token == XContentParser.Token.START_OBJECT) {
CATEGORY_PARSER.parse(parser, queryContext);
} else if (token == XContentParser.Token.VALUE_STRING) {
queryContext.setContext(parser.text());
} else {
throw new ElasticsearchParseException("category context must be an object or string");
}
return queryContext;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(CONTEXT_VALUE, context);
builder.field(CONTEXT_BOOST, boost);
builder.field(CONTEXT_PREFIX, isPrefix);
builder.endObject();
return builder;
}
}
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