| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hudi.common.table.log; |
| |
| import org.apache.hudi.common.table.timeline.HoodieTimeline; |
| import org.apache.hudi.common.util.ValidationUtils; |
| |
| import java.io.Serializable; |
| import java.util.Objects; |
| |
| /** |
| * A instant commits range used for incremental reader filtering. |
| */ |
| public abstract class InstantRange implements Serializable { |
| private static final long serialVersionUID = 1L; |
| |
| protected final String startInstant; |
| protected final String endInstant; |
| |
| public InstantRange(String startInstant, String endInstant) { |
| this.startInstant = startInstant; |
| this.endInstant = endInstant; |
| } |
| |
| /** |
| * Returns the builder. |
| */ |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| public String getStartInstant() { |
| return startInstant; |
| } |
| |
| public String getEndInstant() { |
| return endInstant; |
| } |
| |
| public abstract boolean isInRange(String instant); |
| |
| // ------------------------------------------------------------------------- |
| // Inner Class |
| // ------------------------------------------------------------------------- |
| |
| /** |
| * Represents a range type. |
| */ |
| public static enum RangeType { |
| OPEN_CLOSE, CLOSE_CLOSE |
| } |
| |
| private static class OpenCloseRange extends InstantRange { |
| |
| public OpenCloseRange(String startInstant, String endInstant) { |
| super(Objects.requireNonNull(startInstant), endInstant); |
| } |
| |
| @Override |
| public boolean isInRange(String instant) { |
| // No need to do comparison: |
| // HoodieTimeline.compareTimestamps(instant, HoodieTimeline.LESSER_THAN_OR_EQUALS, endInstant) |
| // because the logic is ensured by the log scanner |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.GREATER_THAN, startInstant); |
| } |
| } |
| |
| private static class OpenCloseRangeNullableBoundary extends InstantRange { |
| |
| public OpenCloseRangeNullableBoundary(String startInstant, String endInstant) { |
| super(startInstant, endInstant); |
| ValidationUtils.checkArgument(startInstant != null || endInstant != null, |
| "Start and end instants can not both be null"); |
| } |
| |
| @Override |
| public boolean isInRange(String instant) { |
| if (startInstant == null) { |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.LESSER_THAN_OR_EQUALS, endInstant); |
| } else if (endInstant == null) { |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.GREATER_THAN, startInstant); |
| } else { |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.GREATER_THAN, startInstant) |
| && HoodieTimeline.compareTimestamps(instant, HoodieTimeline.LESSER_THAN_OR_EQUALS, endInstant); |
| } |
| } |
| } |
| |
| private static class CloseCloseRange extends InstantRange { |
| |
| public CloseCloseRange(String startInstant, String endInstant) { |
| super(Objects.requireNonNull(startInstant), endInstant); |
| } |
| |
| @Override |
| public boolean isInRange(String instant) { |
| // No need to do comparison: |
| // HoodieTimeline.compareTimestamps(instant, HoodieTimeline.LESSER_THAN_OR_EQUALS, endInstant) |
| // because the logic is ensured by the log scanner |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.GREATER_THAN_OR_EQUALS, startInstant); |
| } |
| } |
| |
| private static class CloseCloseRangeNullableBoundary extends InstantRange { |
| |
| public CloseCloseRangeNullableBoundary(String startInstant, String endInstant) { |
| super(startInstant, endInstant); |
| ValidationUtils.checkArgument(startInstant != null || endInstant != null, |
| "Start and end instants can not both be null"); |
| } |
| |
| @Override |
| public boolean isInRange(String instant) { |
| if (startInstant == null) { |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.LESSER_THAN_OR_EQUALS, endInstant); |
| } else if (endInstant == null) { |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.GREATER_THAN_OR_EQUALS, startInstant); |
| } else { |
| return HoodieTimeline.compareTimestamps(instant, HoodieTimeline.GREATER_THAN_OR_EQUALS, startInstant) |
| && HoodieTimeline.compareTimestamps(instant, HoodieTimeline.LESSER_THAN_OR_EQUALS, endInstant); |
| } |
| } |
| } |
| |
| // ------------------------------------------------------------------------- |
| // Inner Class |
| // ------------------------------------------------------------------------- |
| |
| /** |
| * Builder for {@link InstantRange}. |
| */ |
| public static class Builder { |
| private String startInstant; |
| private String endInstant; |
| private RangeType rangeType; |
| private boolean nullableBoundary = false; |
| |
| private Builder() { |
| } |
| |
| public Builder startInstant(String startInstant) { |
| this.startInstant = startInstant; |
| return this; |
| } |
| |
| public Builder endInstant(String endInstant) { |
| this.endInstant = endInstant; |
| return this; |
| } |
| |
| public Builder rangeType(RangeType rangeType) { |
| this.rangeType = rangeType; |
| return this; |
| } |
| |
| public Builder nullableBoundary(boolean nullable) { |
| this.nullableBoundary = nullable; |
| return this; |
| } |
| |
| public InstantRange build() { |
| ValidationUtils.checkState(this.rangeType != null, "Range type is required"); |
| switch (rangeType) { |
| case OPEN_CLOSE: |
| return nullableBoundary |
| ? new OpenCloseRangeNullableBoundary(startInstant, endInstant) |
| : new OpenCloseRange(startInstant, endInstant); |
| case CLOSE_CLOSE: |
| return nullableBoundary |
| ? new CloseCloseRangeNullableBoundary(startInstant, endInstant) |
| : new CloseCloseRange(startInstant, endInstant); |
| default: |
| throw new AssertionError(); |
| } |
| } |
| } |
| } |