| /* |
| * 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.solr.analytics.function.reduction; |
| |
| import java.util.Locale; |
| import java.util.function.UnaryOperator; |
| |
| import org.apache.solr.analytics.ExpressionFactory.CreatorFunction; |
| import org.apache.solr.analytics.function.ReductionFunction; |
| import org.apache.solr.analytics.function.reduction.data.ReductionDataCollector; |
| import org.apache.solr.analytics.function.reduction.data.SortedListCollector.SortedDoubleListCollector; |
| import org.apache.solr.analytics.function.reduction.data.SortedListCollector.SortedFloatListCollector; |
| import org.apache.solr.analytics.function.reduction.data.SortedListCollector.SortedIntListCollector; |
| import org.apache.solr.analytics.function.reduction.data.SortedListCollector.SortedLongListCollector; |
| import org.apache.solr.analytics.function.reduction.data.SortedListCollector.SortedStringListCollector; |
| import org.apache.solr.analytics.value.AnalyticsValueStream; |
| import org.apache.solr.analytics.value.DateValueStream; |
| import org.apache.solr.analytics.value.DoubleValueStream; |
| import org.apache.solr.analytics.value.FloatValueStream; |
| import org.apache.solr.analytics.value.IntValue; |
| import org.apache.solr.analytics.value.IntValueStream; |
| import org.apache.solr.analytics.value.LongValueStream; |
| import org.apache.solr.analytics.value.StringValueStream; |
| import org.apache.solr.analytics.value.DateValue.AbstractDateValue; |
| import org.apache.solr.analytics.value.DoubleValue.AbstractDoubleValue; |
| import org.apache.solr.analytics.value.FloatValue.AbstractFloatValue; |
| import org.apache.solr.analytics.value.IntValue.AbstractIntValue; |
| import org.apache.solr.analytics.value.LongValue.AbstractLongValue; |
| import org.apache.solr.analytics.value.StringValue.AbstractStringValue; |
| import org.apache.solr.analytics.value.constant.ConstantValue; |
| import org.apache.solr.common.SolrException; |
| import org.apache.solr.common.SolrException.ErrorCode; |
| |
| /** |
| * A reduction function which returns the given ordinal of the sorted values of the given expression. |
| */ |
| public class OrdinalFunction { |
| public static final String name = "ordinal"; |
| public static final CreatorFunction creatorFunction = (params -> { |
| if (params.length != 2) { |
| throw new SolrException(ErrorCode.BAD_REQUEST,"The "+name+" function requires 2 paramater, " + params.length + " found."); |
| } |
| AnalyticsValueStream percValue = params[0]; |
| int ord = 0; |
| if (params[0] instanceof IntValue && params[0] instanceof ConstantValue) { |
| ord = ((IntValue)percValue).getInt(); |
| if (ord == 0) { |
| throw new SolrException(ErrorCode.BAD_REQUEST,"The "+name+" function requires the ordinal to be >= 1 or <= -1, 0 is not accepted."); |
| } |
| } else { |
| throw new SolrException(ErrorCode.BAD_REQUEST,"The "+name+" function requires a constant int value (the ordinal) as the first argument."); |
| } |
| AnalyticsValueStream param = params[1]; |
| if (param instanceof DateValueStream) { |
| return new DateOrdinalFunction((DateValueStream)param, ord); |
| }else if (param instanceof IntValueStream) { |
| return new IntOrdinalFunction((IntValueStream)param, ord); |
| } else if (param instanceof LongValueStream) { |
| return new LongOrdinalFunction((LongValueStream)param, ord); |
| } else if (param instanceof FloatValueStream) { |
| return new FloatOrdinalFunction((FloatValueStream)param, ord); |
| } else if (param instanceof DoubleValueStream) { |
| return new DoubleOrdinalFunction((DoubleValueStream)param, ord); |
| } else if (param instanceof StringValueStream) { |
| return new StringOrdinalFunction((StringValueStream)param, ord); |
| } |
| throw new SolrException(ErrorCode.BAD_REQUEST,"The "+name+" function requires a comparable parameter."); |
| }); |
| |
| protected static String createOrdinalExpressionString(AnalyticsValueStream param, double ord) { |
| return String.format(Locale.ROOT, "%s(%s,%s)", |
| name, |
| ord, |
| param.getExpressionStr()); |
| } |
| } |
| class IntOrdinalFunction extends AbstractIntValue implements ReductionFunction { |
| private SortedIntListCollector collector; |
| private int ordinal; |
| public static final String name = OrdinalFunction.name; |
| private final String exprStr; |
| |
| public IntOrdinalFunction(IntValueStream param, int ordinal) { |
| this.collector = new SortedIntListCollector(param); |
| this.ordinal = ordinal; |
| this.exprStr = OrdinalFunction.createOrdinalExpressionString(param, ordinal); |
| } |
| |
| @Override |
| public int getInt() { |
| int size = collector.size(); |
| if (ordinal > 0) { |
| return ordinal <= size ? collector.get(ordinal - 1) : 0; |
| } else { |
| return (ordinal * -1) <= size ? collector.get(size + ordinal) : 0; |
| } |
| } |
| @Override |
| public boolean exists() { |
| return (ordinal > 0 ? ordinal : (ordinal * -1)) <= collector.size(); |
| } |
| |
| @Override |
| public void synchronizeDataCollectors(UnaryOperator<ReductionDataCollector<?>> sync) { |
| collector = (SortedIntListCollector)sync.apply(collector); |
| collector.calcOrdinal(ordinal); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| @Override |
| public String getExpressionStr() { |
| return exprStr; |
| } |
| @Override |
| public ExpressionType getExpressionType() { |
| return ExpressionType.REDUCTION; |
| } |
| } |
| class LongOrdinalFunction extends AbstractLongValue implements ReductionFunction { |
| private SortedLongListCollector collector; |
| private int ordinal; |
| public static final String name = OrdinalFunction.name; |
| private final String exprStr; |
| |
| public LongOrdinalFunction(LongValueStream param, int ordinal) { |
| this.collector = new SortedLongListCollector(param); |
| this.ordinal = ordinal; |
| this.exprStr = OrdinalFunction.createOrdinalExpressionString(param, ordinal); |
| } |
| |
| @Override |
| public long getLong() { |
| int size = collector.size(); |
| if (ordinal > 0) { |
| return ordinal <= size ? collector.get(ordinal - 1) : 0; |
| } else { |
| return (ordinal * -1) <= size ? collector.get(size + ordinal) : 0; |
| } |
| } |
| @Override |
| public boolean exists() { |
| return (ordinal > 0 ? ordinal : (ordinal * -1)) <= collector.size(); |
| } |
| |
| @Override |
| public void synchronizeDataCollectors(UnaryOperator<ReductionDataCollector<?>> sync) { |
| collector = (SortedLongListCollector)sync.apply(collector); |
| collector.calcOrdinal(ordinal); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| @Override |
| public String getExpressionStr() { |
| return exprStr; |
| } |
| @Override |
| public ExpressionType getExpressionType() { |
| return ExpressionType.REDUCTION; |
| } |
| } |
| class FloatOrdinalFunction extends AbstractFloatValue implements ReductionFunction { |
| private SortedFloatListCollector collector; |
| private int ordinal; |
| public static final String name = OrdinalFunction.name; |
| private final String exprStr; |
| |
| public FloatOrdinalFunction(FloatValueStream param, int ordinal) { |
| this.collector = new SortedFloatListCollector(param); |
| this.ordinal = ordinal; |
| this.exprStr = OrdinalFunction.createOrdinalExpressionString(param, ordinal); |
| } |
| |
| @Override |
| public float getFloat() { |
| int size = collector.size(); |
| if (ordinal > 0) { |
| return ordinal <= size ? collector.get(ordinal - 1) : 0; |
| } else { |
| return (ordinal * -1) <= size ? collector.get(size + ordinal) : 0; |
| } |
| } |
| @Override |
| public boolean exists() { |
| return (ordinal > 0 ? ordinal : (ordinal * -1)) <= collector.size(); |
| } |
| |
| @Override |
| public void synchronizeDataCollectors(UnaryOperator<ReductionDataCollector<?>> sync) { |
| collector = (SortedFloatListCollector)sync.apply(collector); |
| collector.calcOrdinal(ordinal); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| @Override |
| public String getExpressionStr() { |
| return exprStr; |
| } |
| @Override |
| public ExpressionType getExpressionType() { |
| return ExpressionType.REDUCTION; |
| } |
| } |
| class DoubleOrdinalFunction extends AbstractDoubleValue implements ReductionFunction { |
| private SortedDoubleListCollector collector; |
| private int ordinal; |
| public static final String name = OrdinalFunction.name; |
| private final String exprStr; |
| |
| public DoubleOrdinalFunction(DoubleValueStream param, int ordinal) { |
| this.collector = new SortedDoubleListCollector(param); |
| this.ordinal = ordinal; |
| this.exprStr = OrdinalFunction.createOrdinalExpressionString(param, ordinal); |
| } |
| |
| @Override |
| public double getDouble() { |
| int size = collector.size(); |
| if (ordinal > 0) { |
| return ordinal <= size ? collector.get(ordinal - 1) : 0; |
| } else { |
| return (ordinal * -1) <= size ? collector.get(size + ordinal) : 0; |
| } |
| } |
| @Override |
| public boolean exists() { |
| return (ordinal > 0 ? ordinal : (ordinal * -1)) <= collector.size(); |
| } |
| |
| @Override |
| public void synchronizeDataCollectors(UnaryOperator<ReductionDataCollector<?>> sync) { |
| collector = (SortedDoubleListCollector)sync.apply(collector); |
| collector.calcOrdinal(ordinal); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| @Override |
| public String getExpressionStr() { |
| return exprStr; |
| } |
| @Override |
| public ExpressionType getExpressionType() { |
| return ExpressionType.REDUCTION; |
| } |
| } |
| class DateOrdinalFunction extends AbstractDateValue implements ReductionFunction { |
| private SortedLongListCollector collector; |
| private int ordinal; |
| public static final String name = OrdinalFunction.name; |
| private final String exprStr; |
| |
| public DateOrdinalFunction(LongValueStream param, int ordinal) { |
| this.collector = new SortedLongListCollector(param); |
| this.ordinal = ordinal; |
| this.exprStr = OrdinalFunction.createOrdinalExpressionString(param, ordinal); |
| } |
| |
| @Override |
| public long getLong() { |
| int size = collector.size(); |
| if (ordinal > 0) { |
| return ordinal <= size ? collector.get(ordinal - 1) : 0; |
| } else { |
| return (ordinal * -1) <= size ? collector.get(size + ordinal) : 0; |
| } |
| } |
| @Override |
| public boolean exists() { |
| return (ordinal > 0 ? ordinal : (ordinal * -1)) <= collector.size(); |
| } |
| |
| @Override |
| public void synchronizeDataCollectors(UnaryOperator<ReductionDataCollector<?>> sync) { |
| collector = (SortedLongListCollector)sync.apply(collector); |
| collector.calcOrdinal(ordinal); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| @Override |
| public String getExpressionStr() { |
| return exprStr; |
| } |
| @Override |
| public ExpressionType getExpressionType() { |
| return ExpressionType.REDUCTION; |
| } |
| } |
| class StringOrdinalFunction extends AbstractStringValue implements ReductionFunction { |
| private SortedStringListCollector collector; |
| private int ordinal; |
| public static final String name = OrdinalFunction.name; |
| private final String exprStr; |
| |
| public StringOrdinalFunction(StringValueStream param, int ordinal) { |
| this.collector = new SortedStringListCollector(param); |
| this.ordinal = ordinal; |
| this.exprStr = OrdinalFunction.createOrdinalExpressionString(param, ordinal); |
| } |
| |
| @Override |
| public String getString() { |
| int size = collector.size(); |
| if (ordinal > 0) { |
| return ordinal <= size ? collector.get(ordinal - 1) : null; |
| } else { |
| return (ordinal * -1) <= size ? collector.get(size + ordinal) : null; |
| } |
| } |
| @Override |
| public boolean exists() { |
| return (ordinal > 0 ? ordinal : (ordinal * -1)) <= collector.size(); |
| } |
| |
| @Override |
| public void synchronizeDataCollectors(UnaryOperator<ReductionDataCollector<?>> sync) { |
| collector = (SortedStringListCollector)sync.apply(collector); |
| collector.calcOrdinal(ordinal); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| @Override |
| public String getExpressionStr() { |
| return exprStr; |
| } |
| @Override |
| public ExpressionType getExpressionType() { |
| return ExpressionType.REDUCTION; |
| } |
| } |