prerna.reactor.masterdatabase.GetDatabaseListReactor Maven / Gradle / Ivy

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package prerna.reactor.masterdatabase;

import java.util.Arrays;
import java.util.List;
import java.util.Map;

import prerna.auth.utils.SecurityEngineUtils;
import prerna.engine.api.IEngine;
import prerna.reactor.AbstractReactor;
import prerna.sablecc2.om.PixelDataType;
import prerna.sablecc2.om.PixelOperationType;
import prerna.sablecc2.om.ReactorKeysEnum;
import prerna.sablecc2.om.nounmeta.NounMetadata;

public class GetDatabaseListReactor extends AbstractReactor {
	
	public GetDatabaseListReactor() {
		this.keysToGet = new String[]{ReactorKeysEnum.LIMIT.getKey(), ReactorKeysEnum.OFFSET.getKey()};
	}

	@Override
	public NounMetadata execute() {
		organizeKeys();
		String strLimit = this.keyValue.get(this.keysToGet[0]);
		String strOffset = this.keyValue.get(this.keysToGet[1]);
		
		Integer limit = null;
		Integer offset = null;
		if(strLimit != null && !(strLimit=strLimit.trim()).isEmpty()) {
			try {
				limit = Integer.parseInt(strLimit);
			} catch(NumberFormatException e) {
				throw new IllegalArgumentException("Could not parse limit value as integer. Input was: " + strLimit);
			}
		}
		if(strOffset != null && !(strOffset=strOffset.trim()).isEmpty()) {
			try {
				offset = Integer.parseInt(strOffset);
			} catch(NumberFormatException e) {
				throw new IllegalArgumentException("Could not parse offset value as integer. Input was: " + strOffset);
			}
		}
		
		List engineTypeFilter = Arrays.asList(IEngine.CATALOG_TYPE.DATABASE.name());
		List> retList = SecurityEngineUtils.getUserEngineList(this.insight.getUser(), engineTypeFilter, limit, offset);
		return new NounMetadata(retList, PixelDataType.CUSTOM_DATA_STRUCTURE, PixelOperationType.DATABASE_LIST);
	}
	
}