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package eu.dnetlib.data.mapreduce.hbase.index;
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import eu.dnetlib.data.mapreduce.util.OafDecoder;
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import eu.dnetlib.data.mapreduce.util.OafHbaseUtils;
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import eu.dnetlib.data.mapreduce.util.OafRowKeyDecoder;
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import eu.dnetlib.data.proto.KindProtos;
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import eu.dnetlib.data.proto.OafProtos;
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import eu.dnetlib.data.proto.TypeProtos;
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import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
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import org.apache.hadoop.io.NullWritable;
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import org.apache.hadoop.io.Text;
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import org.apache.hadoop.mapreduce.Counter;
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import org.apache.hadoop.mapreduce.Reducer;
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public class InfospaceCountsReducer extends Reducer<Text, ImmutableBytesWritable, NullWritable, NullWritable> {
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public static final String ENTITY = KindProtos.Kind.entity.toString();
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@Override
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protected void reduce(final Text key, final Iterable<ImmutableBytesWritable> values, final Context context) {
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try {
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final OafRowKeyDecoder keyDecoder = OafRowKeyDecoder.decode(key.toString());
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for (final ImmutableBytesWritable bytes : values) {
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final OafDecoder decoder = OafHbaseUtils.decode(bytes);
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final TypeProtos.Type type = keyDecoder.getType();
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final OafProtos.Oaf oaf = decoder.getOaf();
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switch (decoder.getKind()) {
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case entity:
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if (deletedByInference(oaf)) {
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if (isInvisible(oaf)) {
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incrementCounter(context, ENTITY, String.format("%s (deleted true / invisible true)", getEntityType(oaf, type)), 1);
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} else {
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incrementCounter(context, ENTITY, String.format("%s (deleted true / invisible false)", getEntityType(oaf, type)), 1);
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}
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} else {
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if (isInvisible(oaf)) {
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incrementCounter(context, ENTITY, String.format("%s (deleted false / invisible true)", getEntityType(oaf, type)), 1);
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} else {
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incrementCounter(context, ENTITY, String.format("%s (deleted false / invisible false)", getEntityType(oaf, type)), 1);
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}
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}
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break;
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case relation:
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if (deletedByInference(oaf)) {
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incrementCounter(context, String.format("%s (deleted true)", ENTITY), decoder.getCFQ(), 1);
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} else {
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incrementCounter(context, String.format("%s (deleted false)", ENTITY), decoder.getCFQ(), 1);
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}
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break;
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default:
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throw new IllegalArgumentException("unknow type: " + decoder.getKind());
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}
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}
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} catch (final Throwable e) {
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context.getCounter("error", e.getClass().getName()).increment(1);
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throw new RuntimeException(e);
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}
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}
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private void incrementCounter(final Reducer.Context context, final String k, final String t, final int n) {
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getCounter(context, k, t).increment(n);
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}
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private Counter getCounter(final Reducer.Context context, final String k, final String t) {
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return context.getCounter(k, t);
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}
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private String getEntityType(final OafProtos.Oaf oaf, final TypeProtos.Type type) {
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switch (type) {
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case result:
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return oaf.getEntity().getResult().getMetadata().getResulttype().getClassid();
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default:
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return type.toString();
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}
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}
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private boolean deletedByInference(final OafProtos.Oaf oaf) {
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return oaf.getDataInfo().getDeletedbyinference();
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}
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private boolean isInvisible(final OafProtos.Oaf oaf) {
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return oaf.getDataInfo().getInvisible();
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}
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}
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