D-Net

package eu.dnetlib.data.collector.plugins.sftp;

import java.util.Iterator;

import java.util.Set;

import com.google.common.base.Splitter;

import com.google.common.collect.Sets;

import eu.dnetlib.data.collector.plugin.AbstractCollectorPlugin;

import eu.dnetlib.data.collector.rmi.CollectorServiceException;

import eu.dnetlib.data.collector.rmi.InterfaceDescriptor;

/**

 * Created by andrea on 11/01/16.

 */

public class SftpCollectorPlugin extends AbstractCollectorPlugin {

    private SftpIteratorFactory sftpIteratorFactory;

    @Override

    public Iterable<String> collect(final InterfaceDescriptor interfaceDescriptor, final String fromDate, final String toDate)

            throws CollectorServiceException {

        final String baseUrl = interfaceDescriptor.getBaseUrl();

        final String username = interfaceDescriptor.getParams().get("username");

        final String password = interfaceDescriptor.getParams().get("password");

        final String recursive = interfaceDescriptor.getParams().get("recursive");

        final String extensions = interfaceDescriptor.getParams().get("extensions");

        if ((baseUrl == null) || baseUrl.isEmpty()) {

            throw new CollectorServiceException("Param 'baseurl' is null or empty");

        }

        if ((username == null) || username.isEmpty()) {

            throw new CollectorServiceException("Param 'username' is null or empty");

        }

        if ((password == null) || password.isEmpty()) {

            throw new CollectorServiceException("Param 'password' is null or empty");

        }

        if ((recursive == null) || recursive.isEmpty()) {

            throw new CollectorServiceException("Param 'recursive' is null or empty");

        }

        if ((extensions == null) || extensions.isEmpty()) {

            throw new CollectorServiceException("Param 'extensions' is null or empty");

        }

        if (fromDate != null && !fromDate.matches("\\d{4}-\\d{2}-\\d{2}")) { throw new CollectorServiceException("Invalid date (YYYY-MM-DD): " + fromDate); }

        // final int fromDateIntSeconds =

        return new Iterable<String>() {

            boolean isRecursive = "true".equals(recursive);

            Set<String> extensionsSet = parseSet(extensions);

            @Override

            public Iterator<String> iterator() {

                return getSftpIteratorFactory().newIterator(baseUrl, username, password, isRecursive, extensionsSet, fromDate);

            }

            private Set<String> parseSet(final String extensions) {

                return Sets.newHashSet(Splitter.on(",").omitEmptyStrings().trimResults().split(extensions));

            }

        };

    }

    public SftpIteratorFactory getSftpIteratorFactory() {

        return sftpIteratorFactory;

    }

    public void setSftpIteratorFactory(SftpIteratorFactory sftpIteratorFactory) {

        this.sftpIteratorFactory = sftpIteratorFactory;

    }

}