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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.aggregations.bucket.terms;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentParser.Token;
import org.elasticsearch.search.aggregations.Aggregator.SubAggCollectionMode;
import org.elasticsearch.search.aggregations.bucket.terms.TermsAggregator.BucketCountThresholds;
import org.elasticsearch.search.aggregations.bucket.terms.support.IncludeExclude;
import org.elasticsearch.search.aggregations.support.AbstractValuesSourceParser.AnyValuesSourceParser;
import org.elasticsearch.search.aggregations.support.XContentParseContext;
import org.elasticsearch.search.aggregations.support.ValueType;
import org.elasticsearch.search.aggregations.support.ValuesSource;
import org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder;
import org.elasticsearch.search.aggregations.support.ValuesSourceType;
import java.io.IOException;
import java.util.Map;
public abstract class AbstractTermsParser extends AnyValuesSourceParser {
public static final ParseField EXECUTION_HINT_FIELD_NAME = new ParseField("execution_hint");
public static final ParseField SHARD_SIZE_FIELD_NAME = new ParseField("shard_size");
public static final ParseField MIN_DOC_COUNT_FIELD_NAME = new ParseField("min_doc_count");
public static final ParseField SHARD_MIN_DOC_COUNT_FIELD_NAME = new ParseField("shard_min_doc_count");
public static final ParseField REQUIRED_SIZE_FIELD_NAME = new ParseField("size");
public IncludeExclude.Parser incExcParser = new IncludeExclude.Parser();
protected AbstractTermsParser() {
super(true, true);
}
@Override
protected final ValuesSourceAggregationBuilder createFactory(String aggregationName,
ValuesSourceType valuesSourceType,
ValueType targetValueType,
Map otherOptions) {
BucketCountThresholds bucketCountThresholds = getDefaultBucketCountThresholds();
Integer requiredSize = (Integer) otherOptions.get(REQUIRED_SIZE_FIELD_NAME);
if (requiredSize != null && requiredSize != -1) {
bucketCountThresholds.setRequiredSize(requiredSize);
}
Integer shardSize = (Integer) otherOptions.get(SHARD_SIZE_FIELD_NAME);
if (shardSize != null && shardSize != -1) {
bucketCountThresholds.setShardSize(shardSize);
}
Long minDocCount = (Long) otherOptions.get(MIN_DOC_COUNT_FIELD_NAME);
if (minDocCount != null && minDocCount != -1) {
bucketCountThresholds.setMinDocCount(minDocCount);
}
Long shardMinDocCount = (Long) otherOptions.get(SHARD_MIN_DOC_COUNT_FIELD_NAME);
if (shardMinDocCount != null && shardMinDocCount != -1) {
bucketCountThresholds.setShardMinDocCount(shardMinDocCount);
}
SubAggCollectionMode collectMode = (SubAggCollectionMode) otherOptions.get(SubAggCollectionMode.KEY);
String executionHint = (String) otherOptions.get(EXECUTION_HINT_FIELD_NAME);
IncludeExclude incExc = incExcParser.createIncludeExclude(otherOptions);
return doCreateFactory(aggregationName, valuesSourceType, targetValueType, bucketCountThresholds, collectMode, executionHint,
incExc,
otherOptions);
}
protected abstract ValuesSourceAggregationBuilder doCreateFactory(String aggregationName,
ValuesSourceType valuesSourceType,
ValueType targetValueType,
BucketCountThresholds bucketCountThresholds,
SubAggCollectionMode collectMode,
String executionHint,
IncludeExclude incExc,
Map otherOptions);
@Override
protected boolean token(String aggregationName, String currentFieldName, Token token,
XContentParseContext context, Map otherOptions) throws IOException {
XContentParser parser = context.getParser();
if (incExcParser.token(currentFieldName, token, parser, context.getParseFieldMatcher(), otherOptions)) {
return true;
} else if (token == XContentParser.Token.VALUE_STRING) {
if (context.matchField(currentFieldName, EXECUTION_HINT_FIELD_NAME)) {
otherOptions.put(EXECUTION_HINT_FIELD_NAME, parser.text());
return true;
} else if (context.matchField(currentFieldName, SubAggCollectionMode.KEY)) {
otherOptions.put(SubAggCollectionMode.KEY, SubAggCollectionMode.parse(parser.text(), context.getParseFieldMatcher()));
return true;
} else if (context.matchField(currentFieldName, REQUIRED_SIZE_FIELD_NAME)) {
otherOptions.put(REQUIRED_SIZE_FIELD_NAME, parser.intValue());
return true;
} else if (parseSpecial(aggregationName, context, token, currentFieldName, otherOptions)) {
return true;
}
} else if (token == XContentParser.Token.VALUE_NUMBER) {
if (context.matchField(currentFieldName, REQUIRED_SIZE_FIELD_NAME)) {
otherOptions.put(REQUIRED_SIZE_FIELD_NAME, parser.intValue());
return true;
} else if (context.matchField(currentFieldName, SHARD_SIZE_FIELD_NAME)) {
otherOptions.put(SHARD_SIZE_FIELD_NAME, parser.intValue());
return true;
} else if (context.matchField(currentFieldName, MIN_DOC_COUNT_FIELD_NAME)) {
otherOptions.put(MIN_DOC_COUNT_FIELD_NAME, parser.longValue());
return true;
} else if (context.matchField(currentFieldName, SHARD_MIN_DOC_COUNT_FIELD_NAME)) {
otherOptions.put(SHARD_MIN_DOC_COUNT_FIELD_NAME, parser.longValue());
return true;
} else if (parseSpecial(aggregationName, context, token, currentFieldName, otherOptions)) {
return true;
}
} else if (parseSpecial(aggregationName, context, token, currentFieldName, otherOptions)) {
return true;
}
return false;
}
public abstract boolean parseSpecial(String aggregationName, XContentParseContext context,
Token token, String currentFieldName, Map otherOptions) throws IOException;
protected abstract TermsAggregator.BucketCountThresholds getDefaultBucketCountThresholds();
}