net.sf.aguacate.context.spi.sql.impl.SentenceSqlArrayIterator Maven / Gradle / Ivy

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package net.sf.aguacate.context.spi.sql.impl;

import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import net.sf.aguacate.function.Function;
import net.sf.aguacate.function.FunctionContext;
import net.sf.aguacate.function.FunctionEvalResult;

/**
 *  * "name": "...",
 * "type": "ARRAY_ITERATOR",
 * "sentences": {
 *     ...
 * },
 * "methods": [
 *     ...
 * ]
 * 
 */
public class SentenceSqlArrayIterator extends AbstractSentenceSql {

	private static final Logger LOGGER = LogManager.getLogger(SentenceSqlArrayIterator.class);

	private final Function[] sentences;

	private final String initialContext;

	private final String[] complement;

	public SentenceSqlArrayIterator(String name, String message, List methods, List required,
			List optional, List sentences) {
		super(name, message, methods);
		this.sentences = sentences.toArray(new Function[sentences.size()]);
		initialContext = required.get(0);
		if (optional.size() == 0) {
			complement = new String[0];
		} else {
			complement = optional.toArray(new String[optional.size()]);
		}
	}

	@Override
	public String getOutputName() {
		return null;
	}

	@Override
	public FunctionEvalResult evaluate0(FunctionContext functionContext, Map context)
			throws SQLException {
		@SuppressWarnings("unchecked")
		List> list = (List>) context.get(initialContext);
		LOGGER.trace("initialContext: {}", list);
		int size = list.size();
		for (int i = 0; i < size; i++) {
			Map temp = list.get(i);
			Map subcontext = new HashMap<>(temp);
			for (String name : complement) {
				subcontext.put(name, context.get(name));
			}
			LOGGER.trace("subcontext: {}", subcontext);
			for (Function sentence : sentences) {
				FunctionEvalResult result = sentence.evaluate(functionContext, subcontext);
				if (!result.isSuccess()) {
					return result;
				}
			}
		}
		return new FunctionEvalResult(true);
	}

}