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26600
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sandro.lab
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package eu.dnetlib.data.mapreduce.hbase.dedup;
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import java.io.IOException;
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import java.util.List;
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import java.util.NavigableMap;
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import org.apache.hadoop.hbase.client.Result;
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import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
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import org.apache.hadoop.hbase.mapreduce.TableMapper;
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import org.apache.hadoop.hbase.util.Bytes;
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import org.apache.hadoop.io.Text;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.HttpClient;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.client.methods.HttpUriRequest;
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import org.apache.http.impl.client.DefaultHttpClient;
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import org.apache.http.params.BasicHttpParams;
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import org.apache.http.params.HttpParams;
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import com.google.common.collect.Lists;
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import com.google.gson.Gson;
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38309
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claudio.at
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import eu.dnetlib.data.mapreduce.hbase.VolatileColumnFamily;
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26600
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sandro.lab
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import eu.dnetlib.data.proto.RelTypeProtos.RelType;
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public class FindPersonCoauthorsMapper extends TableMapper<Text, Text> {
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38309
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claudio.at
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sandro.lab
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private final HttpClient client = new DefaultHttpClient();
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private final String url = "http://146.48.87.97:8888/addData";
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@Override
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claudio.at
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protected void setup(final Context context) {
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// url = context.getConfiguration().get("dedup.person.coauthors.service.url");
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sandro.lab
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}
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@Override
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38309
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claudio.at
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protected void map(final ImmutableBytesWritable rowkey, final Result row, final Context context) throws IOException, InterruptedException {
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final NavigableMap<byte[], byte[]> candidates = row.getFamilyMap(Bytes.toBytes(VolatileColumnFamily.dedupPerson.toString()));
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if ((candidates == null) || candidates.isEmpty()) return;
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sandro.lab
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38309
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claudio.at
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final List<String> coauthors = Lists.newArrayList();
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for (final byte[] b : row.getFamilyMap(Bytes.toBytes(RelType.personResult.toString())).keySet()) {
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sandro.lab
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coauthors.add(Bytes.toString(b));
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}
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claudio.at
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for (final byte[] candidate : candidates.keySet()) {
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sandro.lab
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emit(context, Bytes.toString(candidate), coauthors);
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}
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}
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claudio.at
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private void emit(final Context context, final String candidate, final List<String> coauthors) {
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sandro.lab
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try {
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claudio.at
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final HttpUriRequest request = new HttpPost(url);
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final HttpParams params = new BasicHttpParams();
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sandro.lab
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params.setParameter("id", candidate);
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params.setParameter("data", (new Gson().toJson(coauthors)));
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request.setParams(params);
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claudio.at
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final HttpResponse response = client.execute(request);
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sandro.lab
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context.getCounter("HTTP call", "code " + response.getStatusLine().getStatusCode()).increment(1);
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claudio.at
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} catch (final Exception e) {
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sandro.lab
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context.getCounter("HTTP call", "Exception " + e.getClass()).increment(1);
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}
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}
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}
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