Example usage for org.apache.cassandra.db.rows Row clustering

Introduction

In this page you can find the example usage for org.apache.cassandra.db.rows Row clustering.

Prototype

@Override
public Clustering clustering();

Source Link

Document

The clustering values for this row.

Usage

From source file:com.stratio.cassandra.lucene.IndexServiceWide.java

License:Apache License

/** {@inheritDoc} */
@Override//from   ww  w.  j  av a2  s.  co m
public Columns columns(DecoratedKey key, Row row) {
    Clustering clustering = row.clustering();
    Columns columns = new Columns();
    partitionMapper.addColumns(columns, key);
    keyMapper.addColumns(columns, clustering);
    columnsMapper.addColumns(columns, row);
    return columns;
}

---

From source file:com.stratio.cassandra.lucene.IndexServiceWide.java

License:Apache License

/** {@inheritDoc} */
@Override/*from  w w  w .ja  v  a2  s . c  o  m*/
public Optional<Document> document(DecoratedKey key, Row row) {
    Document document = new Document();
    Columns columns = columns(key, row);
    schema.addFields(document, columns);
    if (document.getFields().isEmpty()) {
        return Optional.empty();
    } else {
        Clustering clustering = row.clustering();
        tokenMapper.addFields(document, key);
        partitionMapper.addFields(document, key);
        keyMapper.addFields(document, key, clustering);
        return Optional.of(document);
    }
}

---

From source file:com.stratio.cassandra.lucene.IndexServiceWide.java

License:Apache License

/** {@inheritDoc} */
@Override
public Term term(DecoratedKey key, Row row) {
    return term(key, row.clustering());
}

---

From source file:com.stratio.cassandra.lucene.IndexWriterWide.java

License:Apache License

/** {@inheritDoc} */
@Override//from  w w w .  ja  va2  s  .c o  m
protected void index(Row row) {
    if (!row.isStatic()) {
        Clustering clustering = row.clustering();
        if (service.needsReadBeforeWrite(key, row)) {
            rowsToRead.add(clustering);
            rows.put(clustering, Optional.empty());
        } else {
            rows.put(clustering, Optional.of(row));
        }
    }
}

---

From source file:com.stratio.cassandra.lucene.IndexWriterWide.java

License:Apache License

/** {@inheritDoc} */
@Override//from  w  ww.  j a  va 2 s .  co m
public void finish() {

    // Read required rows from storage engine
    service.read(key, rowsToRead, nowInSec, opGroup).forEachRemaining(unfiltered -> {
        Row row = (Row) unfiltered;
        rows.put(row.clustering(), Optional.of(row));
    });

    // Write rows
    rows.forEach((clustering, optional) -> optional.ifPresent(row -> {
        if (row.hasLiveData(nowInSec)) {
            service.upsert(key, row);
        } else {
            service.delete(key, row);
        }
    }));
}

---

From source file:io.puntanegra.fhir.index.FhirIndexIndexer.java

License:Apache License

/**
 * Temporally store the row to be indexed in a map.
 *
 * @param row/* w  w  w .j a  v  a2s .c  o m*/
 *            the row to be indexed.
 */
public void index(Row row) {
    if (!row.isStatic()) {
        Clustering clustering = row.clustering();
        if (service.needsReadBeforeWrite(key, row)) {
            rows.put(clustering, Optional.empty());
        } else {
            rows.put(clustering, Optional.of(row));
        }
    }
}

---

From source file:io.puntanegra.fhir.index.FhirIndexIndexer.java

License:Apache License

public void finish() {
    // Read required rows from storage engine
    service.read(key, nowInSec, opGroup).forEachRemaining(unfiltered -> {
        Row row = (Row) unfiltered;
        rows.put(row.clustering(), Optional.of(row));
    });/* w ww  .j a  va  2 s. c  o  m*/

    // Write rows to Lucene index
    rows.forEach((clustering, optional) -> optional.ifPresent(row -> {
        if (row.hasLiveData(nowInSec)) {
            service.upsert(key, row);
        } else {
            service.delete(key, row);
        }
    }));
}

---

From source file:io.puntanegra.fhir.index.FhirIndexService.java

License:Apache License

/**
 * Creates a Lucene {@link Document} to index a FHIR {@link IBaseResource}.
 * //from   w w  w . j  av  a2 s .  c  o m
 * @param key,
 *            the key of the row inserted.
 * @param row,
 *            the row inserted.
 * @return the Lucene {@link Document} to be inserted in the index.
 */
public Optional<Document> document(DecoratedKey key, Row row) {
    Document document = new Document();

    Cell cell = row.getCell(this.indexOptions.targetColumn);
    ByteBuffer value = cell.value();
    if (cell != null && !ByteBufferUtils.isEmpty(value)) {
        String json = ByteBufferUtils.toString(value, UTF8Type.instance);
        fhirMapper.addFields(document, json);
    }

    if (document.getFields().isEmpty()) {
        return Optional.empty();
    } else {
        Clustering clustering = row.clustering();
        tokenMapper.addFields(document, key);
        partitionMapper.addFields(document, key);
        keyMapper.addFields(document, key, clustering);
        return Optional.of(document);
    }
}

---

From source file:io.puntanegra.fhir.index.FhirIndexService.java

License:Apache License

private Term term(DecoratedKey key, Row row) {
    return term(key, row.clustering());
}

---