D-Net

package eu.dnetlib.msro.workflows.util;

import java.util.List;

import java.util.Map;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.springframework.beans.factory.annotation.Required;

import com.google.common.collect.Lists;

import eu.dnetlib.miscutils.functional.UnaryFunction;

import eu.dnetlib.msro.rmi.MSROException;

import eu.dnetlib.msro.workflows.util.ValidNodeValuesFetcher.DnetParamValue;

public abstract class ValidNodeValuesFetcher implements UnaryFunction<List<DnetParamValue>, Map<String, String>> {

	private String name;

	private static final Log log = LogFactory.getLog(ValidNodeValuesFetcher.class);

	public class DnetParamValue implements Comparable<DnetParamValue> {

		private String id;

		private String name;

		public DnetParamValue(final String id, final String name) {

			this.id = id;

			this.name = name;

		}

		public String getId() {

			return id;

		}

		public String getName() {

			return name;

		}

		@Override

		public int compareTo(final DnetParamValue o) {

			return getName().compareTo(o.getName());

		}

	}

	@Override

	final public List<DnetParamValue> evaluate(final Map<String, String> params) {

		try {

			return obtainValues(params);

		} catch (Throwable e) {

			log.error("Error obtaing values", e);

			return Lists.newArrayList();

		}

	}

	abstract protected List<DnetParamValue> obtainValues(Map<String, String> params) throws Exception;

	public String getName() {

		return name;

	}

	@Required

	public void setName(final String name) {

		this.name = name;

	}

	protected void verifyParams(final Map<String, String> params, final String... pnames) throws MSROException {

		for (String s : pnames) {

			if (!params.containsKey(s)) { throw new MSROException("Parameter not found: " + s); }

		}

	}

}