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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.ingest.processor;
import org.elasticsearch.ingest.core.IngestDocument;
import org.elasticsearch.ingest.RandomDocumentPicks;
import org.elasticsearch.ingest.core.Processor;
import org.elasticsearch.test.ESTestCase;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
public class JoinProcessorTests extends ESTestCase {
private static final String[] SEPARATORS = new String[]{"-", "_", "."};
public void testJoinStrings() throws Exception {
IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random());
int numItems = randomIntBetween(1, 10);
String separator = randomFrom(SEPARATORS);
List<String> fieldValue = new ArrayList<>(numItems);
String expectedResult = "";
for (int j = 0; j < numItems; j++) {
String value = randomAsciiOfLengthBetween(1, 10);
fieldValue.add(value);
expectedResult += value;
if (j < numItems - 1) {
expectedResult += separator;
}
}
String fieldName = RandomDocumentPicks.addRandomField(random(), ingestDocument, fieldValue);
Processor processor = new JoinProcessor(randomAsciiOfLength(10), fieldName, separator);
processor.execute(ingestDocument);
assertThat(ingestDocument.getFieldValue(fieldName, String.class), equalTo(expectedResult));
}
public void testJoinIntegers() throws Exception {
IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random());
int numItems = randomIntBetween(1, 10);
String separator = randomFrom(SEPARATORS);
List<Integer> fieldValue = new ArrayList<>(numItems);
String expectedResult = "";
for (int j = 0; j < numItems; j++) {
int value = randomInt();
fieldValue.add(value);
expectedResult += value;
if (j < numItems - 1) {
expectedResult += separator;
}
}
String fieldName = RandomDocumentPicks.addRandomField(random(), ingestDocument, fieldValue);
Processor processor = new JoinProcessor(randomAsciiOfLength(10), fieldName, separator);
processor.execute(ingestDocument);
assertThat(ingestDocument.getFieldValue(fieldName, String.class), equalTo(expectedResult));
}
public void testJoinNonListField() throws Exception {
IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random(), new HashMap<>());
String fieldName = RandomDocumentPicks.randomFieldName(random());
ingestDocument.setFieldValue(fieldName, randomAsciiOfLengthBetween(1, 10));
Processor processor = new JoinProcessor(randomAsciiOfLength(10), fieldName, "-");
try {
processor.execute(ingestDocument);
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), equalTo("field [" + fieldName + "] of type [java.lang.String] cannot be cast to [java.util.List]"));
}
}
public void testJoinNonExistingField() throws Exception {
IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random(), new HashMap<>());
String fieldName = RandomDocumentPicks.randomFieldName(random());
Processor processor = new JoinProcessor(randomAsciiOfLength(10), fieldName, "-");
try {
processor.execute(ingestDocument);
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), containsString("not present as part of path [" + fieldName + "]"));
}
}
public void testJoinNullValue() throws Exception {
IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random(), Collections.singletonMap("field", null));
Processor processor = new JoinProcessor(randomAsciiOfLength(10), "field", "-");
try {
processor.execute(ingestDocument);
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), equalTo("field [field] is null, cannot join."));
}
}
}
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