2016-10-07 18:23:23 +02:00
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package org.gcube.data_catalogue.grsf_publish_ws.utils;
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2016-10-08 23:10:25 +02:00
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import java.beans.PropertyDescriptor;
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2016-10-10 18:50:11 +02:00
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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2016-10-08 23:10:25 +02:00
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import java.lang.reflect.Field;
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2016-10-13 11:46:42 +02:00
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import java.util.ArrayList;
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2016-10-11 11:39:25 +02:00
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import java.util.HashMap;
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2016-10-08 23:10:25 +02:00
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import java.util.List;
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import java.util.Map;
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2016-10-10 18:50:11 +02:00
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import javax.servlet.ServletContext;
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2016-11-01 22:35:52 +01:00
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import org.gcube.data_catalogue.grsf_publish_ws.custom_annotations.CkanResource;
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2016-10-08 23:10:25 +02:00
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import org.gcube.data_catalogue.grsf_publish_ws.custom_annotations.CustomField;
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import org.gcube.data_catalogue.grsf_publish_ws.custom_annotations.Group;
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import org.gcube.data_catalogue.grsf_publish_ws.custom_annotations.Tag;
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import org.gcube.data_catalogue.grsf_publish_ws.json.input.Common;
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2016-10-13 11:46:42 +02:00
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import org.gcube.data_catalogue.grsf_publish_ws.json.input.Resource;
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2016-11-24 17:53:50 +01:00
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import org.gcube.data_catalogue.grsf_publish_ws.json.input.TimeSeriesBean;
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2016-10-10 18:50:11 +02:00
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import org.gcube.data_catalogue.grsf_publish_ws.utils.groups.Status;
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2016-10-08 22:16:31 +02:00
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import org.gcube.datacatalogue.ckanutillibrary.DataCatalogue;
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import org.gcube.datacatalogue.ckanutillibrary.DataCatalogueFactory;
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2016-10-10 18:50:11 +02:00
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import org.gcube.datacatalogue.ckanutillibrary.DataCatalogueImpl;
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2016-10-13 11:46:42 +02:00
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import org.gcube.datacatalogue.ckanutillibrary.models.ResourceBean;
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2016-10-08 23:10:25 +02:00
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import org.slf4j.LoggerFactory;
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2016-10-08 22:16:31 +02:00
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2016-10-10 18:50:11 +02:00
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import eu.trentorise.opendata.jackan.internal.org.apache.http.HttpResponse;
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import eu.trentorise.opendata.jackan.internal.org.apache.http.client.methods.HttpGet;
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import eu.trentorise.opendata.jackan.internal.org.apache.http.impl.client.CloseableHttpClient;
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import eu.trentorise.opendata.jackan.internal.org.apache.http.impl.client.HttpClientBuilder;
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2016-10-11 11:39:25 +02:00
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import eu.trentorise.opendata.jackan.model.CkanLicense;
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2016-10-10 18:50:11 +02:00
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2016-10-07 18:23:23 +02:00
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/**
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* Helper methods
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* @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
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*/
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2016-11-27 12:33:41 +01:00
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@SuppressWarnings({"unchecked","rawtypes"})
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2016-10-07 18:23:23 +02:00
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public abstract class HelperMethods {
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2016-10-08 23:10:25 +02:00
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private static final org.slf4j.Logger logger = LoggerFactory.getLogger(HelperMethods.class);
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2016-10-10 18:50:11 +02:00
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// to be retrieved from the web.xml
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private static final String PENDING_CONTEX_KEY = "PendingContext";
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private static final String CONFIRMED_CONTEX_KEY = "ConfirmedContext";
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2016-11-25 13:56:27 +01:00
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private static final int TIME_SERIES_TAKE_LAST_VALUES = 5;
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2016-10-10 18:50:11 +02:00
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2016-11-27 12:33:41 +01:00
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2016-10-08 22:16:31 +02:00
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/**
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* Convert a group name to its id on ckan
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* @param origName
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* @return
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*/
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2016-10-07 18:23:23 +02:00
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public static String getGroupNameOnCkan(String origName){
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2016-10-08 23:10:25 +02:00
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2016-10-07 18:23:23 +02:00
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if(origName == null)
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throw new IllegalArgumentException("origName cannot be null");
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2016-10-08 23:10:25 +02:00
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2016-10-10 18:50:11 +02:00
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String modified = origName.trim().toLowerCase().replaceAll("[^A-Za-z0-9-]", "-");
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if(modified.startsWith("-"))
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modified = modified.substring(1);
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if(modified.endsWith("-"))
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modified = modified.substring(0, modified.length() -1);
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2016-10-11 11:39:25 +02:00
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2016-10-10 18:50:11 +02:00
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return modified;
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2016-10-07 18:23:23 +02:00
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}
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2016-10-08 23:10:25 +02:00
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2016-10-08 22:16:31 +02:00
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/**
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* Retrieve the running instance of the data catalogue for this scope
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* @return
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* @throws Exception
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*/
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2016-11-04 16:26:19 +01:00
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public static DataCatalogue getDataCatalogueRunningInstance(String scope){
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2016-10-08 23:10:25 +02:00
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2016-10-10 18:50:11 +02:00
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try{
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DataCatalogueImpl instance = DataCatalogueFactory.getFactory().getUtilsPerScope(scope);
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return instance;
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}catch(Exception e){
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logger.error("Failed to instanciate data catalogue lib", e);
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}
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return null;
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2016-10-08 23:10:25 +02:00
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}
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/**
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* Retrieve the list of tags for this object
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*/
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public static void getTags(List<String> tags, Common record){
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2016-10-13 14:06:15 +02:00
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2016-10-08 23:10:25 +02:00
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Class<?> current = record.getClass();
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do{
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Field[] fields = current.getDeclaredFields();
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for (Field field : fields) {
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if(field.isAnnotationPresent(Tag.class)){
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try{
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Object f = new PropertyDescriptor(field.getName(), current).getReadMethod().invoke(record);
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if(f != null){
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2016-11-04 16:26:19 +01:00
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if(f instanceof List<?>){
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List asList = ((List) f);
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2016-11-25 13:56:27 +01:00
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if(!asList.isEmpty()){
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logger.debug("The object annotated with @Tag is a list. Adding ... ");
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int elementsToConsider = asList.size();
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// check if it is a time series, in this take the last X elements
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if(asList.get(0).getClass().equals(TimeSeriesBean.class)){
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elementsToConsider = Math.min(elementsToConsider, TIME_SERIES_TAKE_LAST_VALUES);
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for (int i = (asList.size() - elementsToConsider); i < asList.size(); i++) {
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logger.debug(asList.get(i).toString().trim());
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tags.add(asList.get(i).toString().trim());
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}
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}else{
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// else add all the available elements
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for (int i = 0; i < elementsToConsider; i++) {
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logger.debug(asList.get(i).toString().trim());
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tags.add(asList.get(i).toString().trim());
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}
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}
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2016-11-04 16:26:19 +01:00
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}
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}else{
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logger.debug("The object annotated with @Tag is a simple one. Adding ... ");
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logger.debug(f.toString().trim());
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2016-11-06 21:21:11 +01:00
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tags.add(f.toString().trim());
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2016-11-04 16:26:19 +01:00
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}
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2016-11-25 13:56:27 +01:00
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2016-10-08 23:10:25 +02:00
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}
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}catch(Exception e){
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logger.error("Failed ot read value for field " + field.getName() + " skipping", e);
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}
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}
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}
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}
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2016-11-06 21:21:11 +01:00
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while((current = current.getSuperclass())!=null); // start from the inherited class up to the Object.class
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2016-11-04 16:26:19 +01:00
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logger.info("Tags are " + tags);
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2016-10-08 22:16:31 +02:00
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}
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2016-10-08 23:10:25 +02:00
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/**
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2016-10-10 18:50:11 +02:00
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* Retrieve the list of groups' names for this object
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2016-10-08 23:10:25 +02:00
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*/
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public static void getGroups(List<String> groups, Common record){
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2016-10-13 14:06:15 +02:00
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2016-10-08 23:10:25 +02:00
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Class<?> current = record.getClass();
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do{
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Field[] fields = current.getDeclaredFields();
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for (Field field : fields) {
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if(field.isAnnotationPresent(Group.class)){
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try{
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Object f = new PropertyDescriptor(field.getName(), current).getReadMethod().invoke(record);
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if(f != null){
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2016-10-09 12:52:33 +02:00
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// also convert to the group name that should be on ckan
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2016-10-13 14:06:15 +02:00
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String groupName = getGroupNameOnCkan(f.toString().trim());
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2016-10-13 11:46:42 +02:00
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if(!groups.contains(groupName))
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groups.add(groupName);
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2016-10-08 23:10:25 +02:00
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}
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}catch(Exception e){
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logger.error("Failed ot read value for field " + field.getName() + " skipping", e);
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}
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}
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}
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}
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2016-11-06 21:21:11 +01:00
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while((current = current.getSuperclass())!=null); // start from the inherited class up to the Object.class
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2016-10-13 11:46:42 +02:00
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2016-11-04 16:26:19 +01:00
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logger.info("Groups is " + groups);
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2016-10-08 23:10:25 +02:00
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}
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/**
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* Retrieve the list of extras for this object
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*/
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2016-10-27 11:40:19 +02:00
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public static void getExtras(Map<String, List<String>> extras, Common record){
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2016-10-13 14:06:15 +02:00
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2016-10-08 23:10:25 +02:00
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Class<?> current = record.getClass();
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do{
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Field[] fields = current.getDeclaredFields();
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for (Field field : fields) {
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if(field.isAnnotationPresent(CustomField.class)){
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try{
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Object f = new PropertyDescriptor(field.getName(), current).getReadMethod().invoke(record);
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2016-11-02 16:02:28 +01:00
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String keyField = field.getAnnotation(CustomField.class).key();
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2016-10-08 23:10:25 +02:00
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if(f != null){
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2016-11-06 21:21:11 +01:00
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List<String> valuesForKey = new ArrayList<String>();
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// check if the map already contains this key
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if(extras.containsKey(keyField))
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valuesForKey = extras.get(keyField);
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2016-11-04 16:26:19 +01:00
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if(f instanceof List<?>){
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logger.debug("The object " + field.getName() + " is a list and is annotated with @CustomField. Adding ...");
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List asList = (List)f;
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2016-11-25 13:56:27 +01:00
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if(!asList.isEmpty()){
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int elementsToConsider = asList.size();
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2016-10-27 11:40:19 +02:00
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2016-11-25 13:56:27 +01:00
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// check if it is a time series, in this case take the last X elements
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if(asList.get(0).getClass().equals(TimeSeriesBean.class)){
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elementsToConsider = Math.min(elementsToConsider, TIME_SERIES_TAKE_LAST_VALUES);
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for (int i = (asList.size() - elementsToConsider); i < asList.size(); i++) {
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logger.debug(asList.get(i).toString().trim());
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valuesForKey.add(asList.get(i).toString().trim());
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}
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}else{
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for (int i = 0; i < elementsToConsider; i++) {
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logger.debug(asList.get(i).toString().trim());
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valuesForKey.add(asList.get(i).toString().trim());
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}
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}
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}
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2016-10-27 11:40:19 +02:00
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}else{
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2016-11-06 21:21:11 +01:00
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valuesForKey.add(f.toString().trim());
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2016-10-27 11:40:19 +02:00
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}
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2016-10-08 23:10:25 +02:00
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2016-11-06 21:21:11 +01:00
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// add to the map
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extras.put(keyField, valuesForKey);
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2016-10-08 23:10:25 +02:00
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}
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}catch(Exception e){
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logger.error("Failed ot read value for field " + field.getName() + " skipping", e);
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}
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}
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}
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}
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2016-11-06 21:21:11 +01:00
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while((current = current.getSuperclass())!=null); // start from the inherited class up to the Object.class
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2016-11-04 16:26:19 +01:00
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logger.info("Extras is " + extras);
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2016-10-08 23:10:25 +02:00
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}
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2016-10-10 18:50:11 +02:00
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/**
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* Retrieve the organization name in which the user wants to publish starting from the scope
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* @param contextInWhichPublish
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* @return
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*/
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public static String retrieveOrgNameFromScope(String scope) {
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String[] splittedScope = scope.split("/");
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return splittedScope[splittedScope.length - 1].toLowerCase();
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}
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/**
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* Return the context in which the user wants to publish by the status information
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* @param status
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* @param contextServlet
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* @return
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*/
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public static String getContextFromStatus(Status status, ServletContext contextServlet) {
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String toReturn = null;
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switch(status){
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case Confirmed :
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toReturn = (String)contextServlet.getInitParameter(CONFIRMED_CONTEX_KEY);
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break;
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case Pending:
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toReturn = (String)contextServlet.getInitParameter(PENDING_CONTEX_KEY);
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break;
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default: break;
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}
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logger.debug("Context evaluated is " + toReturn);
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return toReturn;
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}
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/**
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* Validate the name the product will have
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* @param futureName
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* @return
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*/
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2016-11-06 21:21:11 +01:00
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public static boolean isNameValid(String futureName) {
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2016-10-10 18:50:11 +02:00
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if(futureName == null || futureName.isEmpty())
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return false;
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else{
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return futureName.matches("[\\sA-Za-z0-9_.-]+");
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}
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}
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/**
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* Retrieve the user's email given his/her username
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* @param context
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* @param token
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* @return
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* @throws Exception
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*/
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public static String getUserEmail(String context, String token){
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2016-11-06 21:21:11 +01:00
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String baseUrl = new ServiceEndPointReaderSocial(context).getBasePath();
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String url = baseUrl + "users/getUserEmail?gcube-token=" + token;
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logger.debug("Request url is " + url);
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return executGETHttpRequest(url, 200);
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2016-10-10 18:50:11 +02:00
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}
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/**
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* Retrieve the user's fullname given his/her username
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* @param context
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* @param token
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* @return
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* @throws Exception
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*/
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public static String getUserFullname(String context, String token){
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2016-11-06 21:21:11 +01:00
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String baseUrl = new ServiceEndPointReaderSocial(context).getBasePath();
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|
|
String url = baseUrl + "users/getUserFullname?gcube-token=" + token;
|
|
|
|
logger.debug("Request url is " + url);
|
|
|
|
return executGETHttpRequest(url, 200);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Execute the GET http request at this url, and return the result as string
|
|
|
|
* @return
|
|
|
|
*/
|
|
|
|
private static String executGETHttpRequest(String url, int expectedCodeOnSuccess){
|
|
|
|
|
2016-10-10 18:50:11 +02:00
|
|
|
try(CloseableHttpClient client = HttpClientBuilder.create().build();){
|
|
|
|
|
|
|
|
HttpGet getRequest = new HttpGet(url);
|
|
|
|
HttpResponse response = client.execute(getRequest);
|
|
|
|
|
2016-11-06 21:21:11 +01:00
|
|
|
if (response.getStatusLine().getStatusCode() != expectedCodeOnSuccess) {
|
2016-10-10 18:50:11 +02:00
|
|
|
throw new RuntimeException("Failed : HTTP error code : "
|
|
|
|
+ response.getStatusLine().getStatusCode());
|
|
|
|
}
|
|
|
|
|
|
|
|
BufferedReader br = new BufferedReader(
|
|
|
|
new InputStreamReader((response.getEntity().getContent())));
|
|
|
|
|
2016-11-06 21:21:11 +01:00
|
|
|
String res = "";
|
2016-10-10 18:50:11 +02:00
|
|
|
String temp = null;
|
|
|
|
|
|
|
|
while ((temp = br.readLine()) != null) {
|
2016-11-06 21:21:11 +01:00
|
|
|
res += temp;
|
2016-10-10 18:50:11 +02:00
|
|
|
}
|
|
|
|
|
2016-11-06 21:21:11 +01:00
|
|
|
return res;
|
2016-10-10 18:50:11 +02:00
|
|
|
}catch(Exception e){
|
|
|
|
logger.error("error while performing post method " + e.toString());
|
|
|
|
}
|
|
|
|
|
|
|
|
return null;
|
2016-11-06 21:21:11 +01:00
|
|
|
|
2016-10-10 18:50:11 +02:00
|
|
|
}
|
|
|
|
|
2016-10-11 11:39:25 +02:00
|
|
|
/**
|
|
|
|
* Retrieve the list of ckan licenses and build up a map <license_id, license_title>
|
|
|
|
* @return
|
|
|
|
* @throws Exception
|
|
|
|
*/
|
2016-11-06 21:21:11 +01:00
|
|
|
public static Map<String, String> getLicenses(DataCatalogue catalogue) throws Exception {
|
2016-10-11 11:39:25 +02:00
|
|
|
|
|
|
|
Map<String, String> toReturn = new HashMap<String, String>();
|
|
|
|
List<CkanLicense> licenses = catalogue.getLicenses();
|
|
|
|
|
|
|
|
for (CkanLicense ckanLicense : licenses) {
|
|
|
|
toReturn.put(ckanLicense.getId(), ckanLicense.getTitle());
|
|
|
|
}
|
|
|
|
return toReturn;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Check that the given license id is in CKAN
|
|
|
|
* @param license id to check
|
|
|
|
* @return
|
|
|
|
* @throws Exception
|
|
|
|
*/
|
2016-11-06 21:21:11 +01:00
|
|
|
public static boolean existsLicenseId(String license, DataCatalogue catalogue) throws Exception {
|
2016-10-11 11:39:25 +02:00
|
|
|
|
2016-11-04 16:26:19 +01:00
|
|
|
List<CkanLicense> licenses = catalogue.getLicenses();
|
|
|
|
for (CkanLicense ckanLicense : licenses) {
|
|
|
|
if(ckanLicense.getId().equals(license))
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
2016-10-11 11:39:25 +02:00
|
|
|
}
|
|
|
|
|
2016-10-13 11:46:42 +02:00
|
|
|
/**
|
2016-11-01 22:35:52 +01:00
|
|
|
* Retrieve the ResourceBean given the record (extract resources from Database Sources and Source of Information and others)
|
2016-10-13 11:46:42 +02:00
|
|
|
* @param record
|
2016-11-01 22:35:52 +01:00
|
|
|
* @param username
|
|
|
|
* @param tags
|
|
|
|
* @param groups
|
|
|
|
* @return
|
2016-10-13 11:46:42 +02:00
|
|
|
*/
|
2016-11-01 22:35:52 +01:00
|
|
|
public static List<ResourceBean> getResourcesFromBean(Common record, String username, List<String> tags, List<String> groups){
|
2016-11-06 21:21:11 +01:00
|
|
|
|
2016-10-13 11:46:42 +02:00
|
|
|
List<ResourceBean> toReturn = new ArrayList<ResourceBean>();
|
2016-11-01 22:35:52 +01:00
|
|
|
Class<?> current = record.getClass();
|
|
|
|
do{
|
|
|
|
Field[] fields = current.getDeclaredFields();
|
|
|
|
for (Field field : fields) {
|
|
|
|
if(field.isAnnotationPresent(CkanResource.class)){
|
|
|
|
try{
|
|
|
|
Object f = new PropertyDescriptor(field.getName(), current).getReadMethod().invoke(record);
|
|
|
|
if(f != null){
|
|
|
|
|
|
|
|
if(f instanceof List<?>){
|
|
|
|
|
|
|
|
List<Resource> listOfResources = (List<Resource>)f;
|
|
|
|
|
|
|
|
for (Resource resource : listOfResources) {
|
2016-11-04 16:26:19 +01:00
|
|
|
toReturn.add(new ResourceBean(resource.getUrl(), resource.getName().toString(), resource.getDescription(), null, username, null, null));
|
2016-11-01 22:35:52 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
}else{
|
|
|
|
|
|
|
|
Resource res = (Resource)f;
|
2016-11-04 16:26:19 +01:00
|
|
|
toReturn.add(new ResourceBean(res.getUrl(), res.getName().toString(), res.getDescription(), null, username, null, null));
|
2016-11-01 22:35:52 +01:00
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}catch(Exception e){
|
|
|
|
logger.error("Failed ot read value for field " + field.getName() + " skipping", e);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2016-10-13 11:46:42 +02:00
|
|
|
}
|
2016-11-06 21:21:11 +01:00
|
|
|
while((current = current.getSuperclass())!=null); // iterate from the inherited class up to the Object.class
|
2016-11-01 22:35:52 +01:00
|
|
|
|
2016-11-04 16:26:19 +01:00
|
|
|
logger.info("Returning resources " + toReturn);
|
2016-10-13 11:46:42 +02:00
|
|
|
return toReturn;
|
|
|
|
}
|
2016-10-07 18:23:23 +02:00
|
|
|
}
|