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/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.ingest.common;
import org.opensearch.common.network.InetAddresses;
import org.opensearch.ingest.AbstractProcessor;
import org.opensearch.ingest.ConfigurationUtils;
import org.opensearch.ingest.IngestDocument;
import org.opensearch.ingest.Processor;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import static org.opensearch.ingest.ConfigurationUtils.newConfigurationException;
/**
* Processor that converts fields content to a different type. Supported types are: integer, float, boolean and string.
* Throws exception if the field is not there or the conversion fails.
*/
public final class ConvertProcessor extends AbstractProcessor {
enum Type {
INTEGER {
@Override
public Object convert(Object value) {
try {
String strValue = value.toString();
if (strValue.startsWith("0x") || strValue.startsWith("-0x")) {
return Integer.decode(strValue);
}
return Integer.parseInt(strValue);
} catch (NumberFormatException e) {
throw new IllegalArgumentException("unable to convert [" + value + "] to integer", e);
}
}
},
LONG {
@Override
public Object convert(Object value) {
try {
String strValue = value.toString();
if (strValue.startsWith("0x") || strValue.startsWith("-0x")) {
return Long.decode(strValue);
}
return Long.parseLong(strValue);
} catch (NumberFormatException e) {
throw new IllegalArgumentException("unable to convert [" + value + "] to long", e);
}
}
},
DOUBLE {
@Override
public Object convert(Object value) {
try {
return Double.parseDouble(value.toString());
} catch (NumberFormatException e) {
throw new IllegalArgumentException("unable to convert [" + value + "] to double", e);
}
}
},
FLOAT {
@Override
public Object convert(Object value) {
try {
return Float.parseFloat(value.toString());
} catch (NumberFormatException e) {
throw new IllegalArgumentException("unable to convert [" + value + "] to float", e);
}
}
},
BOOLEAN {
@Override
public Object convert(Object value) {
if (value.toString().equalsIgnoreCase("true")) {
return true;
} else if (value.toString().equalsIgnoreCase("false")) {
return false;
} else {
throw new IllegalArgumentException("[" + value + "] is not a boolean value, cannot convert to boolean");
}
}
},
STRING {
@Override
public Object convert(Object value) {
return value.toString();
}
},
IP {
@Override
public Object convert(Object value) {
// If the value is a valid ipv4/ipv6 address, we return the original value directly because IpFieldType
// can accept string value, this is simpler than we return an InetAddress object which needs to do more
// work such as serialization
if (value instanceof String && InetAddresses.isInetAddress(value.toString())) {
return value;
} else {
throw new IllegalArgumentException("[" + value + "] is not a valid ipv4/ipv6 address");
}
}
},
AUTO {
@Override
public Object convert(Object value) {
if (!(value instanceof String)) {
return value;
}
try {
return BOOLEAN.convert(value);
} catch (IllegalArgumentException e) {}
try {
return INTEGER.convert(value);
} catch (IllegalArgumentException e) {}
try {
return LONG.convert(value);
} catch (IllegalArgumentException e) {}
try {
return FLOAT.convert(value);
} catch (IllegalArgumentException e) {}
try {
return DOUBLE.convert(value);
} catch (IllegalArgumentException e) {}
return value;
}
};
@Override
public String toString() {
return name().toLowerCase(Locale.ROOT);
}
public abstract Object convert(Object value);
public static Type fromString(String processorTag, String propertyName, String type) {
try {
return Type.valueOf(type.toUpperCase(Locale.ROOT));
} catch (IllegalArgumentException e) {
throw newConfigurationException(
TYPE,
processorTag,
propertyName,
"type [" + type + "] not supported, cannot convert field."
);
}
}
}
public static final String TYPE = "convert";
private final String field;
private final String targetField;
private final Type convertType;
private final boolean ignoreMissing;
ConvertProcessor(String tag, String description, String field, String targetField, Type convertType, boolean ignoreMissing) {
super(tag, description);
this.field = field;
this.targetField = targetField;
this.convertType = convertType;
this.ignoreMissing = ignoreMissing;
}
String getField() {
return field;
}
String getTargetField() {
return targetField;
}
Type getConvertType() {
return convertType;
}
boolean isIgnoreMissing() {
return ignoreMissing;
}
@Override
public IngestDocument execute(IngestDocument document) {
Object oldValue = document.getFieldValue(field, Object.class, ignoreMissing);
Object newValue;
if (oldValue == null && ignoreMissing) {
return document;
} else if (oldValue == null) {
throw new IllegalArgumentException("Field [" + field + "] is null, cannot be converted to type [" + convertType + "]");
}
if (oldValue instanceof List) {
List list = (List) oldValue;
List
