forked from D-Net/dnet-hadoop
code refactored
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bbb79273a3
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53787dbf67
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@ -1,18 +1,11 @@
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package eu.dnetlib.dhp.transformation.xslt;
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import com.mongodb.util.JSON;
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import org.apache.commons.io.IOUtils;
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import org.json.JSONObject;
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import scala.Char;
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import java.io.IOException;
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import java.net.URL;
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import java.nio.charset.Charset;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* This class fetches JSON from a provided link and returns
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* a Dublin Core. This functionality is particularly needed for OSF Preprints
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@ -21,8 +14,26 @@ import java.util.List;
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/**
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* this method fetches JSON from a provided URL and returns it as JSON Object
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*/
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public class DataFetcher {
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// fetch data
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/**
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* this method fetches JSON from a provided URL and returns it as Dublin Core
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*/
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public static List<String> fetchAndTransform(URL url) throws IOException {
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JSONObject jsonObject = getJson(url);
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List<String> authors = getAuthorsFromJson(jsonObject);
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return transformListToDublinCore(authors);
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}
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/**
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* This method fetches JSON object from a given URL
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* @param url
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* @return
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* @throws IOException
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*/
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static JSONObject getJson(URL url) throws IOException {
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String json = IOUtils.toString(url);
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@ -36,12 +47,9 @@ public class DataFetcher {
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* @return
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*/
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static List<String> getAuthorsFromJson(JSONObject jsonObject) {
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List<String> authors = new ArrayList<>();
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// count of authors
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int countOfAuthors = jsonObject.getJSONArray("data").length();
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for (int i = 0; i < countOfAuthors; i++) {
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authors.add(jsonObject
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@ -52,12 +60,15 @@ public class DataFetcher {
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.getJSONObject("data")
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.getJSONObject("attributes")
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.getString("full_name"));
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}
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return authors;
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}
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// transform list of authors into Dublin Core
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/**
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* This method transforms list of authors into Dublin Core
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* @param authors
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* @return Dublin Core list of authors
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*/
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static List<String> transformListToDublinCore(List<String> authors) {
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List<String> dublinCoreAuthors = new ArrayList<>();
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@ -73,7 +84,6 @@ public class DataFetcher {
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dublinCoreAuthors.add(
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"<dc:creator>" + lastName + ", " + initialOfFirstName + ". (" + firstName + ")" + "</dc:creator>");
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}
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return dublinCoreAuthors;
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}
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@ -5,7 +5,6 @@ import org.junit.jupiter.api.AfterEach;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import javax.xml.crypto.Data;
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import java.io.IOException;
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import java.net.URI;
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import java.net.URISyntaxException;
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@ -48,7 +47,6 @@ class DataFetcherTest {
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JSONObject testJsonObj = DataFetcher.getJson(contributorsUrl);
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List<String> authors = DataFetcher.getAuthorsFromJson(testJsonObj);
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System.out.println(authors);
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System.out.println(DataFetcher.transformListToDublinCore(authors));
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}
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