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57 changes: 57 additions & 0 deletions
57
java-client/src/main/java/org/opensearch/client/json/PlainDeserializable.java
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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. | ||
| */ | ||
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| package org.opensearch.client.json; | ||
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| import jakarta.json.stream.JsonParser; | ||
| import java.io.InputStream; | ||
| import java.io.Reader; | ||
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| /** Base interface to set JSON properties **/ | ||
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| public interface PlainDeserializable<B> { | ||
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| B self(); | ||
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| /** Updates object with newly provided JSON properties | ||
| @param parser the JsonParser parser | ||
| @param mapper the JsonpMapper mapper used to deserialize values | ||
| @return this object | ||
| **/ | ||
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| default B withJson(JsonParser parser, JsonpMapper mapper) { | ||
| JsonpDeserializer<?> deserializer = JsonpMapperBase.findDeserializer(this.getClass().getEnclosingClass()); | ||
| @SuppressWarnings("unchecked") | ||
| ObjectDeserializer<B> objectDeserializer = (ObjectDeserializer<B>) DelegatingDeserializer.unwrap(deserializer); | ||
| assert objectDeserializer != null; | ||
| return objectDeserializer.deserialize(self(), parser, mapper, parser.next()); | ||
| } | ||
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| /** Updates object with newly provided JSON properties | ||
| @param inputStream the stream to read from | ||
| @return this object | ||
| * **/ | ||
| default B withJson(InputStream inputStream) { | ||
| JsonpMapper defaultMapper = JsonpUtils.DEFAULT_JSONP_MAPPER; | ||
| try (JsonParser parser = defaultMapper.jsonProvider().createParser(inputStream)) { | ||
| return withJson(parser, defaultMapper); | ||
| } | ||
| } | ||
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| /** Updates object with newly provided JSON properties | ||
| @param reader the stream to read from | ||
| @return this object | ||
| * **/ | ||
| default B withJson(Reader reader) { | ||
| JsonpMapper defaultMapper = JsonpUtils.DEFAULT_JSONP_MAPPER; | ||
| try (JsonParser parser = defaultMapper.jsonProvider().createParser(reader)) { | ||
| return withJson(parser, defaultMapper); | ||
| } | ||
| } | ||
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| } |
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44 changes: 44 additions & 0 deletions
44
java-client/src/test/java/org/opensearch/client/opensearch/json/PlainDeserializableTest.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,44 @@ | ||
| /* | ||
| * 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.client.opensearch.json; | ||
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| import static org.junit.Assert.assertEquals; | ||
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| import java.io.ByteArrayInputStream; | ||
| import java.io.InputStream; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import org.junit.Test; | ||
| import org.opensearch.client.opensearch.indices.PutIndexTemplateRequest; | ||
| import org.opensearch.client.opensearch.indices.put_index_template.IndexTemplateMapping; | ||
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| public class PlainDeserializableTest { | ||
| @Test | ||
| public void testWithJsonPutIndexTemplateRequest() { | ||
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| String stringTemplate = | ||
| "{\"mappings\":{\"properties\":{\"age\":{\"type\":\"integer\"}}},\"settings\":{\"number_of_shards\":\"2\",\"number_of_replicas\":\"1\"}}"; | ||
| InputStream inputStream = new ByteArrayInputStream(stringTemplate.getBytes(StandardCharsets.UTF_8)); | ||
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| PutIndexTemplateRequest indexTemplateRequest = new PutIndexTemplateRequest.Builder().name("My index") | ||
| .indexPatterns("index_pattern1") | ||
| .template(new IndexTemplateMapping.Builder().withJson(inputStream).build()) | ||
| .build(); | ||
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| String expectedName = "My index"; | ||
| List<String> expectedIndexPatterns = Arrays.asList("index_pattern1"); | ||
| String expectedNumberOfShards = "2"; | ||
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| assertEquals(indexTemplateRequest.name(), expectedName); | ||
| assertEquals(expectedIndexPatterns, indexTemplateRequest.indexPatterns()); | ||
| assertEquals(expectedNumberOfShards, indexTemplateRequest.template().settings().numberOfShards()); | ||
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| } | ||
| } |
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61
samples/src/main/java/org/opensearch/client/samples/json/DeserializationBasics.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| /* | ||
| * 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.client.samples.json; | ||
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| import java.io.ByteArrayInputStream; | ||
| import java.io.InputStream; | ||
| import java.nio.charset.StandardCharsets; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.opensearch.client.opensearch.OpenSearchClient; | ||
| import org.opensearch.client.opensearch.indices.PutIndexTemplateRequest; | ||
| import org.opensearch.client.opensearch.indices.PutIndexTemplateResponse; | ||
| import org.opensearch.client.opensearch.indices.put_index_template.IndexTemplateMapping; | ||
| import org.opensearch.client.samples.SampleClient; | ||
| import org.opensearch.client.samples.Search; | ||
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| public class DeserializationBasics { | ||
| private static final Logger LOGGER = LogManager.getLogger(Search.class); | ||
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| private static OpenSearchClient client; | ||
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| public static void main(String[] args) { | ||
| try { | ||
| client = SampleClient.create(); | ||
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| var version = client.info().version(); | ||
| LOGGER.info("Server: {}@{}.", version.distribution(), version.number()); | ||
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| final var indexTemplateName = "my-index"; | ||
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| // Use Json String/File for storing template. | ||
| String stringTemplate = | ||
| "{\"mappings\":{\"properties\":{\"age\":{\"type\":\"integer\"}}},\"settings\":{\"number_of_shards\":\"2\",\"number_of_replicas\":\"1\"}}"; | ||
| // Create Input Stream for the above json template | ||
| InputStream inputStream = new ByteArrayInputStream(stringTemplate.getBytes(StandardCharsets.UTF_8)); | ||
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| // Create Index Template Request for index 'my-index'. | ||
| PutIndexTemplateRequest putIndexTemplateRequest = new PutIndexTemplateRequest.Builder().name(indexTemplateName) | ||
| .template(new IndexTemplateMapping.Builder().withJson(inputStream).build()) // Use the Builder.withJson method to | ||
| // deserialize the inputStream into an instance | ||
| // of the IndexTemplateMapping class. | ||
| .build(); | ||
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| LOGGER.info("Creating index template {}.", indexTemplateName); | ||
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| // Use toJsonString method to log Request and Response string. | ||
| LOGGER.debug("Index Template Request: {}.", putIndexTemplateRequest.toJsonString()); | ||
| PutIndexTemplateResponse response = client.indices().putIndexTemplate(putIndexTemplateRequest); | ||
| LOGGER.info("Index Template Response: {}.", response.toJsonString()); | ||
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| } catch (Exception e) { | ||
| LOGGER.error("Exception occurred.", e); | ||
| } | ||
| } | ||
| } |