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Merge pull request #1 from SasinduDilshara/read
Add read functionality with Jsonpath expressions for Ballerina json datatypes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| // Copyright (c) 2024, WSO2 LLC. (https://www.wso2.com). | ||
| // | ||
| // WSO2 LLC. 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. | ||
|
|
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| # Represents the error type of the ballerina/data.jsondata module. This error type represents any error that can occur | ||
| # during the execution of jsondata APIs. | ||
| public type Error distinct error; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| // Copyright (c) 2024, WSO2 LLC. (https://www.wso2.com). | ||
| // | ||
| // WSO2 LLC. 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. | ||
|
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| import ballerina/jballerina.java; | ||
| import ballerina/lang.'object as obj; | ||
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| public type JsonPathValue json; | ||
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| public type JsonPathRawTemplate object { | ||
| *obj:RawTemplate; | ||
| public string[] & readonly strings; | ||
| public JsonPathValue[] insertions; | ||
| }; | ||
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| # Extract details from the given JSON value using the provided query template expression. | ||
| # | ||
| # ```ballerina | ||
| # read({id: 1, "name": "John Doe"}, `$.name`) => "John Doe" | ||
| # ``` | ||
| # | ||
| # + 'json - JSON value | ||
| # + query - JSON path expression | ||
| # + return - extracted details as JSON value, a jsonpath:Error otherwise | ||
| public isolated function read(json 'json, JsonPathRawTemplate query) returns json|Error { | ||
| return readJson('json, new JsonPathRawTemplateImpl(query)); | ||
| } | ||
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| class JsonPathRawTemplateImpl { | ||
| *JsonPathRawTemplate; | ||
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| isolated function init(JsonPathRawTemplate jsonPathRawTemplate) { | ||
| self.strings = jsonPathRawTemplate.strings; | ||
| self.insertions = jsonPathRawTemplate.insertions; | ||
| } | ||
| } | ||
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| # Extract details from the given JSON value using the provided query expression. | ||
| # + 'json - JSON value | ||
| # + query - JSON path expression | ||
| # + return - extracted details as JSON value, a jsonpath:Error otherwise | ||
| isolated function readJson(json 'json, JsonPathRawTemplateImpl query) returns json|Error = @java:Method { | ||
| 'class: "io.ballerina.lib.data.jsonpath.BJsonPath" | ||
| } external; |
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