| package org.apache.drill.exec.store.phoenix; |
| |
| import java.util.List; |
| import java.util.Objects; |
| |
| import org.apache.drill.common.exceptions.ExecutionSetupException; |
| import org.apache.drill.common.expression.SchemaPath; |
| import org.apache.drill.exec.physical.PhysicalOperatorSetupException; |
| import org.apache.drill.exec.physical.base.AbstractGroupScan; |
| import org.apache.drill.exec.physical.base.GroupScan; |
| import org.apache.drill.exec.physical.base.PhysicalOperator; |
| import org.apache.drill.exec.physical.base.ScanStats; |
| import org.apache.drill.exec.physical.base.ScanStats.GroupScanProperty; |
| import org.apache.drill.exec.physical.base.SubScan; |
| import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint; |
| |
| import com.fasterxml.jackson.annotation.JsonCreator; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| import com.fasterxml.jackson.annotation.JsonTypeName; |
| |
| @JsonTypeName("phoenix-scan") |
| public class PhoenixGroupScan extends AbstractGroupScan { |
| |
| private final List<SchemaPath> columns; |
| private final PhoenixScanSpec scanSpec; |
| private final ScanStats scanStats; |
| |
| private int hashCode; |
| |
| public PhoenixGroupScan(PhoenixScanSpec scanSpec) { |
| super("no-user"); |
| this.scanSpec = scanSpec; |
| this.columns = ALL_COLUMNS; |
| this.scanStats = computeScanStats(); |
| } |
| |
| public PhoenixGroupScan(PhoenixGroupScan groupScan) { |
| super(groupScan); |
| this.scanSpec = groupScan.scanSpec; |
| this.columns = groupScan.columns; |
| this.scanStats = groupScan.scanStats; |
| } |
| |
| public PhoenixGroupScan(PhoenixGroupScan groupScan, List<SchemaPath> columns) { |
| super(groupScan); |
| this.scanSpec = groupScan.scanSpec; |
| this.columns = columns; |
| this.scanStats = computeScanStats(); |
| } |
| |
| @JsonCreator |
| public PhoenixGroupScan( |
| @JsonProperty("columns") List<SchemaPath> columns, |
| @JsonProperty("scanSpec") PhoenixScanSpec scanSpec) { |
| super("no-user"); |
| this.columns = columns; |
| this.scanSpec = scanSpec; |
| this.scanStats = computeScanStats(); |
| } |
| |
| @Override |
| @JsonProperty("columns") |
| public List<SchemaPath> getColumns() { |
| return columns; |
| } |
| |
| @JsonProperty("scanSpec") |
| public PhoenixScanSpec getScanSpec() { |
| return scanSpec; |
| } |
| |
| @Override |
| public void applyAssignments(List<DrillbitEndpoint> endpoints) throws PhysicalOperatorSetupException { } |
| |
| @Override |
| public SubScan getSpecificScan(int minorFragmentId) throws ExecutionSetupException { |
| return new PhoenixSubScan(scanSpec, columns); |
| } |
| |
| @Override |
| public int getMaxParallelizationWidth() { |
| return 1; |
| } |
| |
| @Override |
| public String getDigest() { |
| return toString(); |
| } |
| |
| @Override |
| public PhysicalOperator getNewWithChildren(List<PhysicalOperator> children) throws ExecutionSetupException { |
| return new PhoenixGroupScan(columns, scanSpec); |
| } |
| |
| @Override |
| public GroupScan clone(List<SchemaPath> columns) { |
| return new PhoenixGroupScan(this, columns); |
| } |
| |
| @Override |
| public ScanStats getScanStats() { |
| return scanStats; |
| } |
| |
| @Override |
| public int hashCode() { |
| if(hashCode == 0) { |
| hashCode = Objects.hash(scanSpec, columns); |
| } |
| return hashCode; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if(this == obj) { |
| return true; |
| } |
| if(obj == null || getClass() != obj.getClass()) { |
| return false; |
| } |
| PhoenixGroupScan groupScan = (PhoenixGroupScan) obj; |
| return Objects.equals(scanSpec, groupScan.getScanSpec()) && Objects.equals(columns, groupScan.getColumns()); |
| } |
| |
| private ScanStats computeScanStats() { |
| int estRowCount = 10_000; |
| double cpuRatio = 1.0; |
| return new ScanStats(GroupScanProperty.NO_EXACT_ROW_COUNT, estRowCount, cpuRatio, 0); |
| } |
| } |