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143 changes: 143 additions & 0 deletions
143
plugin/src/main/java/org/opensearch/ml/sdkclient/util/JsonTransformer.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| /* | ||
| * Copyright OpenSearch Contributors | ||
| * 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. | ||
| */ | ||
|
|
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| package org.opensearch.ml.sdkclient.util; | ||
|
|
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| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.Iterator; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
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| import com.fasterxml.jackson.databind.JsonNode; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.node.ArrayNode; | ||
| import com.fasterxml.jackson.databind.node.ObjectNode; | ||
| import com.google.common.annotations.VisibleForTesting; | ||
|
|
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| import software.amazon.awssdk.services.dynamodb.model.AttributeValue; | ||
|
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| public class JsonTransformer { | ||
| private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper(); | ||
|
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| @VisibleForTesting | ||
| public static Map<String, AttributeValue> convertJsonObjectToItem(JsonNode jsonNode) { | ||
| Map<String, AttributeValue> item = new HashMap<>(); | ||
| Iterator<Map.Entry<String, JsonNode>> fields = jsonNode.fields(); | ||
|
|
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| while (fields.hasNext()) { | ||
| Map.Entry<String, JsonNode> field = fields.next(); | ||
| if (field.getValue().isTextual()) { | ||
| item.put(field.getKey(), AttributeValue.builder().s(field.getValue().asText()).build()); | ||
| } else if (field.getValue().isNumber()) { | ||
| item.put(field.getKey(), AttributeValue.builder().n(field.getValue().asText()).build()); | ||
| } else if (field.getValue().isBoolean()) { | ||
| item.put(field.getKey(), AttributeValue.builder().bool(field.getValue().asBoolean()).build()); | ||
| } else if (field.getValue().isNull()) { | ||
| item.put(field.getKey(), AttributeValue.builder().nul(true).build()); | ||
| } else if (field.getValue().isObject()) { | ||
| item.put(field.getKey(), AttributeValue.builder().m(convertJsonObjectToItem(field.getValue())).build()); | ||
| } else if (field.getValue().isArray()) { | ||
| item.put(field.getKey(), AttributeValue.builder().l(convertJsonArrayToAttributeValueList(field.getValue())).build()); | ||
| } else { | ||
| throw new IllegalArgumentException("Unsupported field type: " + field.getValue()); | ||
| } | ||
| } | ||
|
|
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| return item; | ||
| } | ||
|
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| @VisibleForTesting | ||
| public static List<AttributeValue> convertJsonArrayToAttributeValueList(JsonNode jsonArray) { | ||
| List<AttributeValue> attributeValues = new ArrayList<>(); | ||
|
|
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| for (JsonNode element : jsonArray) { | ||
| if (element.isTextual()) { | ||
| attributeValues.add(AttributeValue.builder().s(element.asText()).build()); | ||
| } else if (element.isNumber()) { | ||
| attributeValues.add(AttributeValue.builder().n(element.asText()).build()); | ||
| } else if (element.isBoolean()) { | ||
| attributeValues.add(AttributeValue.builder().bool(element.asBoolean()).build()); | ||
| } else if (element.isNull()) { | ||
| attributeValues.add(AttributeValue.builder().nul(true).build()); | ||
| } else if (element.isObject()) { | ||
| attributeValues.add(AttributeValue.builder().m(convertJsonObjectToItem(element)).build()); | ||
| } else if (element.isArray()) { | ||
| attributeValues.add(AttributeValue.builder().l(convertJsonArrayToAttributeValueList(element)).build()); | ||
| } else { | ||
| throw new IllegalArgumentException("Unsupported field type: " + element); | ||
| } | ||
|
|
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| } | ||
|
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| return attributeValues; | ||
| } | ||
|
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| public static ObjectNode convertToObjectNode(Map<String, AttributeValue> item) { | ||
| ObjectNode objectNode = OBJECT_MAPPER.createObjectNode(); | ||
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| item.forEach((key, value) -> { | ||
| switch (value.type()) { | ||
| case S: | ||
| objectNode.put(key, value.s()); | ||
| break; | ||
| case N: | ||
| objectNode.put(key, value.n()); | ||
| break; | ||
| case BOOL: | ||
| objectNode.put(key, value.bool()); | ||
| break; | ||
| case L: | ||
| objectNode.put(key, convertToArrayNode(value.l())); | ||
| break; | ||
| case M: | ||
| objectNode.set(key, convertToObjectNode(value.m())); | ||
| break; | ||
| case NUL: | ||
| objectNode.putNull(key); | ||
| break; | ||
| default: | ||
| throw new IllegalArgumentException("Unsupported AttributeValue type: " + value.type()); | ||
| } | ||
| }); | ||
|
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| return objectNode; | ||
|
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| } | ||
|
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| public static ArrayNode convertToArrayNode(final List<AttributeValue> attributeValueList) { | ||
| ArrayNode arrayNode = OBJECT_MAPPER.createArrayNode(); | ||
| attributeValueList.forEach(attribute -> { | ||
| switch (attribute.type()) { | ||
| case S: | ||
| arrayNode.add(attribute.s()); | ||
| break; | ||
| case N: | ||
| arrayNode.add(attribute.n()); | ||
| break; | ||
| case BOOL: | ||
| arrayNode.add(attribute.bool()); | ||
| break; | ||
| case L: | ||
| arrayNode.add(convertToArrayNode(attribute.l())); | ||
| break; | ||
| case M: | ||
| arrayNode.add(convertToObjectNode(attribute.m())); | ||
| break; | ||
| case NUL: | ||
| arrayNode.add((JsonNode) null); | ||
| break; | ||
| default: | ||
| throw new IllegalArgumentException("Unsupported AttributeValue type: " + attribute.type()); | ||
| } | ||
| }); | ||
| return arrayNode; | ||
|
|
||
| } | ||
| } |
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