D-Net

package eu.dnetlib.index;

import java.lang.reflect.Type;

import java.net.URI;

import java.util.Map;

import com.google.common.collect.Maps;

import com.google.gson.Gson;

import com.google.gson.reflect.TypeToken;

import eu.dnetlib.rmi.provision.IndexServiceException;

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

public abstract class AbstractBackendDescriptor implements IndexServerDAO {

	protected Type typeToken = new TypeToken<Map<String, String>>() {

	}.getType();

	private Map<String, String> serviceProperties;

	private String jsonConfiguration;

	public void init() throws IndexServiceException {

		try {

			serviceProperties = new Gson().fromJson(getJsonConfiguration(), typeToken);

		} catch (Throwable e) {

			throw new IndexServiceException("unable to parse configuration: " + jsonConfiguration, e);

		}

	}

	public String getJsonConfiguration() {

		return jsonConfiguration;

	}

	@Required

	public void setJsonConfiguration(final String jsonConfiguration) {

		this.jsonConfiguration = jsonConfiguration;

	}

	protected URI getEndpointURL() {

		return URI.create(getEndpoint().get(ADDRESS));

	}

	@Override

	public Map<String, String> getServiceProperties() {

		return serviceProperties;

	}

	@Override

	public String getBackendId() {

		return getServiceProperties().get(ID);

	}

	@Override

	public Map<String, String> getEndpoint() {

		return Maps.filterKeys(getServiceProperties(), key -> key.equals(ID) || key.equals(ADDRESS));

	}

}