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sandro.lab
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package eu.dnetlib.msro.workflows.nodes.mdstore;
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import java.util.Iterator;
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import java.util.List;
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andrea.man
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import javax.annotation.Resource;
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sandro.lab
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import javax.xml.ws.wsaddressing.W3CEndpointReference;
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sandro.lab
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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sandro.lab
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import org.springframework.beans.factory.annotation.Autowired;
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claudio.at
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import com.google.common.base.Function;
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import com.google.common.collect.Iterables;
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sandro.lab
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import eu.dnetlib.data.mdstore.MDStoreService;
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import eu.dnetlib.data.mdstore.MDStoreServiceException;
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michele.ar
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import eu.dnetlib.enabling.locators.UniqueServiceLocator;
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sandro.lab
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import eu.dnetlib.enabling.resultset.client.ResultSetClientFactory;
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// TODO: Auto-generated Javadoc
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/**
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* The Class MultipleMdStoreIterator.
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*/
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public class MultipleMdStoreIterator implements Iterator<String> {
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private static final Log log = LogFactory.getLog(MultipleMdStoreIterator.class); // NOPMD by marko on 11/24/08 5:02 PM
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michele.ar
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/** The service locator. */
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andrea.man
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@Resource
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michele.ar
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private UniqueServiceLocator serviceLocator;
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/** The current iterator. */
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private Iterator<String> currentIterator;
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/** The result set client factory. */
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@Autowired
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private ResultSetClientFactory resultSetClientFactory;
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/**
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* Instantiates a new multiple md store iterator.
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*
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* @param mdstoreLocator
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* the mdstore locator
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* @param mdIds
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* the md ids
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*/
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public MultipleMdStoreIterator(final UniqueServiceLocator serviceLocator, final List<String> mdIds, final ResultSetClientFactory resultSetClientFactory) {
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michele.ar
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this.serviceLocator = serviceLocator;
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this.resultSetClientFactory = resultSetClientFactory;
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claudio.at
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log.info(String.format("iterating over mdIds: '%s'", mdIds));
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this.currentIterator = Iterables.concat(Iterables.transform(mdIds, new Function<String, Iterable<String>>() {
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@Override
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public Iterable<String> apply(final String mdId) {
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log.debug(String.format("current mdId '%s'", mdId));
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try {
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W3CEndpointReference epr = serviceLocator.getService(MDStoreService.class, mdId).deliverMDRecords(mdId, "", "", "");
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return resultSetClientFactory.getClient(epr);
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} catch (MDStoreServiceException e) {
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log.error(e);
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throw new RuntimeException(String.format("unable to iterate over %s", mdId), e);
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}
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}
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})).iterator();
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}
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/*
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* (non-Javadoc)
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claudio.at
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*
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* @see java.util.Iterator#hasNext()
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*/
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@Override
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public boolean hasNext() {
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if (currentIterator == null) return false;
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return currentIterator.hasNext();
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}
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/*
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* (non-Javadoc)
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claudio.at
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*
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* @see java.util.Iterator#next()
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*/
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@Override
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public String next() {
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return currentIterator.next();
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}
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/*
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* (non-Javadoc)
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*
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* @see java.util.Iterator#remove()
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*/
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@Override
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public void remove() {
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throw new UnsupportedOperationException("Cannot remove");
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}
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}
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