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* 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.index.query;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.WildcardQuery;
import org.elasticsearch.common.ParsingException;
import org.elasticsearch.search.internal.SearchContext;
import org.elasticsearch.test.AbstractQueryTestCase;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.instanceOf;
public class WildcardQueryBuilderTests extends AbstractQueryTestCase<WildcardQueryBuilder> {
@Override
protected WildcardQueryBuilder doCreateTestQueryBuilder() {
WildcardQueryBuilder query = randomWildcardQuery();
if (randomBoolean()) {
query.rewrite(randomFrom(getRandomRewriteMethod()));
}
return query;
}
@Override
protected Map<String, WildcardQueryBuilder> getAlternateVersions() {
Map<String, WildcardQueryBuilder> alternateVersions = new HashMap<>();
WildcardQueryBuilder wildcardQuery = randomWildcardQuery();
String contentString = "{\n" +
" \"wildcard\" : {\n" +
" \"" + wildcardQuery.fieldName() + "\" : \"" + wildcardQuery.value() + "\"\n" +
" }\n" +
"}";
alternateVersions.put(contentString, wildcardQuery);
return alternateVersions;
}
private static WildcardQueryBuilder randomWildcardQuery() {
// mapped or unmapped field
String text = randomAlphaOfLengthBetween(1, 10);
if (randomBoolean()) {
return new WildcardQueryBuilder(STRING_FIELD_NAME, text);
} else {
return new WildcardQueryBuilder(randomAlphaOfLengthBetween(1, 10), text);
}
}
@Override
protected void doAssertLuceneQuery(WildcardQueryBuilder queryBuilder, Query query, SearchContext context) throws IOException {
assertThat(query, instanceOf(WildcardQuery.class));
WildcardQuery wildcardQuery = (WildcardQuery) query;
assertThat(wildcardQuery.getField(), equalTo(queryBuilder.fieldName()));
assertThat(wildcardQuery.getTerm().field(), equalTo(queryBuilder.fieldName()));
assertThat(wildcardQuery.getTerm().text(), equalTo(queryBuilder.value()));
}
public void testIllegalArguments() {
IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> new WildcardQueryBuilder(null, "text"));
assertEquals("field name is null or empty", e.getMessage());
e = expectThrows(IllegalArgumentException.class, () -> new WildcardQueryBuilder("", "text"));
assertEquals("field name is null or empty", e.getMessage());
e = expectThrows(IllegalArgumentException.class, () -> new WildcardQueryBuilder("field", null));
assertEquals("value cannot be null", e.getMessage());
}
public void testEmptyValue() throws IOException {
QueryShardContext context = createShardContext();
context.setAllowUnmappedFields(true);
WildcardQueryBuilder wildcardQueryBuilder = new WildcardQueryBuilder(getRandomType(), "");
assertEquals(wildcardQueryBuilder.toQuery(context).getClass(), WildcardQuery.class);
}
public void testFromJson() throws IOException {
String json = "{ \"wildcard\" : { \"user\" : { \"wildcard\" : \"ki*y\", \"boost\" : 2.0 } }}";
WildcardQueryBuilder parsed = (WildcardQueryBuilder) parseQuery(json);
checkGeneratedJson(json, parsed);
assertEquals(json, "ki*y", parsed.value());
assertEquals(json, 2.0, parsed.boost(), 0.0001);
}
public void testParseFailsWithMultipleFields() throws IOException {
String json =
"{\n" +
" \"wildcard\": {\n" +
" \"user1\": {\n" +
" \"wildcard\": \"ki*y\"\n" +
" },\n" +
" \"user2\": {\n" +
" \"wildcard\": \"ki*y\"\n" +
" }\n" +
" }\n" +
"}";
ParsingException e = expectThrows(ParsingException.class, () -> parseQuery(json));
assertEquals("[wildcard] query doesn't support multiple fields, found [user1] and [user2]", e.getMessage());
String shortJson =
"{\n" +
" \"wildcard\": {\n" +
" \"user1\": \"ki*y\",\n" +
" \"user2\": \"ki*y\"\n" +
" }\n" +
"}";
e = expectThrows(ParsingException.class, () -> parseQuery(shortJson));
assertEquals("[wildcard] query doesn't support multiple fields, found [user1] and [user2]", e.getMessage());
}
public void testWithMetaDataField() throws IOException {
QueryShardContext context = createShardContext();
for (String field : new String[]{"_type", "_all"}) {
WildcardQueryBuilder wildcardQueryBuilder = new WildcardQueryBuilder(field, "toto");
Query query = wildcardQueryBuilder.toQuery(context);
Query expected = new WildcardQuery(new Term(field, "toto"));
assertEquals(expected, query);
}
}
}