1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* 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.AbstractProcessor;
import org.elasticsearch.ingest.core.AbstractProcessorFactory;
import org.elasticsearch.ingest.core.ConfigurationUtils;
import org.elasticsearch.ingest.core.IngestDocument;
import org.elasticsearch.ingest.core.Processor;
import java.util.Map;
/**
* Base class for processors that manipulate strings and require a single "fields" array config value, which
* holds a list of field names in string format.
*/
public abstract class AbstractStringProcessor extends AbstractProcessor {
private final String field;
protected AbstractStringProcessor(String tag, String field) {
super(tag);
this.field = field;
}
public String getField() {
return field;
}
@Override
public final void execute(IngestDocument document) {
String val = document.getFieldValue(field, String.class);
if (val == null) {
throw new IllegalArgumentException("field [" + field + "] is null, cannot process it.");
}
document.setFieldValue(field, process(val));
}
protected abstract String process(String value);
public static abstract class Factory<T extends AbstractStringProcessor> extends AbstractProcessorFactory<T> {
protected final String processorType;
protected Factory(String processorType) {
this.processorType = processorType;
}
@Override
public T doCreate(String processorTag, Map<String, Object> config) throws Exception {
String field = ConfigurationUtils.readStringProperty(processorType, processorTag, config, "field");
return newProcessor(processorTag, field);
}
protected abstract T newProcessor(String processorTag, String field);
}
}
|
