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Op 125 #746

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Op 125 #746

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6bef66d
Merge pull request #745 from meveo-org/develop
ClementBareth Sep 29, 2023
ba7897c
new CypherHelper method
QuentinTixier Oct 9, 2023
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42 changes: 42 additions & 0 deletions meveo-admin-ejbs/src/main/java/org/meveo/persistence/neo4j/helper/CypherHelper.java
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Original file line number Diff line number Diff line change
Expand Up @@ -16,16 +16,29 @@

package org.meveo.persistence.neo4j.helper;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import javax.inject.Inject;

import org.apache.commons.beanutils.BeanUtils;
import org.meveo.model.CustomEntity;
import org.meveo.model.persistence.DBStorageType;
import org.meveo.model.persistence.JacksonUtil;
import org.meveo.persistence.CrossStorageTransaction;
import org.meveo.service.storage.RepositoryService;
import org.neo4j.driver.Record;
import org.neo4j.driver.Result;
import org.neo4j.driver.Transaction;
import org.neo4j.driver.Value;
import org.neo4j.driver.internal.InternalNode;
import org.neo4j.driver.internal.types.TypeConstructor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

Expand Down Expand Up @@ -86,6 +99,35 @@ public void execute(String neo4jConfiguration, String request, Map<String, Obje
public void execute(String neo4jConfiguration, String request, Map<String, Object> parameters){
execute(neo4jConfiguration, request, parameters, null, null);
}

public <T> List<T> execute(String neo4jConfiguration, String request, Map<String, Object> parameters, Class<T> entityClass){

CypherResultTransformer<List<T> > cypherResultTransformer = new CypherResultTransformer<List<T> >() {

@Override
public List<T> execute(Transaction transaction, Result result) {
List<T> output = new ArrayList<T>();
while(result.hasNext()) {
Record record = result.next();
List<Value> elements = record.values();
for(Value elem : elements) {
Map<String, Object> props = elem.asMap();
try {
T entity = entityClass.getConstructor().newInstance();
BeanUtils.populate(entity, props);
output.add(entity);
} catch (InstantiationException | IllegalAccessException | InvocationTargetException | IllegalArgumentException | NoSuchMethodException | SecurityException e) {
log.error("Couldn't populate entity " + entityClass.toString(), e);
continue;
}
}
}

return output;
}
};
return execute(neo4jConfiguration, request, parameters, cypherResultTransformer, null);
}

@SuppressWarnings("javadoc")
public void update(
Expand Down