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Support simple binary operator for dimension filter #2473
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133 changes: 133 additions & 0 deletions
133
processing/src/main/java/io/druid/query/filter/BinaryOperator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| package io.druid.query.filter; | ||
|
|
||
| import com.google.common.base.Predicate; | ||
| import com.google.common.base.Strings; | ||
|
|
||
| /** | ||
| */ | ||
| public enum BinaryOperator | ||
| { | ||
| GT { | ||
| @Override | ||
| public Predicate<String> toPredicate(final String value) | ||
| { | ||
| return new Predicate<String>() | ||
| { | ||
| @Override | ||
| public boolean apply(String input) | ||
| { | ||
| return input.compareTo(value) > 0; | ||
| } | ||
| }; | ||
| } | ||
| }, | ||
| GTE { | ||
| @Override | ||
| public Predicate<String> toPredicate(final String value) | ||
| { | ||
| return new Predicate<String>() | ||
| { | ||
| @Override | ||
| public boolean apply(String input) | ||
| { | ||
| return input.compareTo(value) >= 0; | ||
| } | ||
| }; | ||
| } | ||
| }, | ||
| LT { | ||
| @Override | ||
| public Predicate<String> toPredicate(final String value) | ||
| { | ||
| return new Predicate<String>() | ||
| { | ||
| @Override | ||
| public boolean apply(String input) | ||
| { | ||
| return input.compareTo(value) < 0; | ||
| } | ||
| }; | ||
| } | ||
| }, | ||
| LTE { | ||
| @Override | ||
| public Predicate<String> toPredicate(final String value) | ||
| { | ||
| return new Predicate<String>() | ||
| { | ||
| @Override | ||
| public boolean apply(String input) | ||
| { | ||
| return input.compareTo(value) <= 0; | ||
| } | ||
| }; | ||
| } | ||
| }, | ||
| EQ { | ||
| @Override | ||
| public Predicate<String> toPredicate(final String value) | ||
| { | ||
| return new Predicate<String>() | ||
| { | ||
| @Override | ||
| public boolean apply(String input) | ||
| { | ||
| return input.equals(value); | ||
| } | ||
| }; | ||
| } | ||
| }, | ||
| NE { | ||
| @Override | ||
| public Predicate<String> toPredicate(final String value) | ||
| { | ||
| return new Predicate<String>() | ||
| { | ||
| @Override | ||
| public boolean apply(String input) | ||
| { | ||
| return !input.equals(value); | ||
| } | ||
| }; | ||
| } | ||
| }; | ||
|
|
||
| public abstract Predicate<String> toPredicate(final String value); | ||
|
|
||
| public static BinaryOperator get(String value) | ||
| { | ||
| if (Strings.isNullOrEmpty(value)) { | ||
| return EQ; | ||
| } | ||
| value = value.toLowerCase(); | ||
| switch (value) { | ||
| case "gt": | ||
| case "greaterthan": | ||
| case ">": | ||
| return GT; | ||
| case "gte": | ||
| case "greaterthanorequalto": | ||
| case ">=": | ||
| return GTE; | ||
| case "lt": | ||
| case "lessthan": | ||
| case "<": | ||
| return LT; | ||
| case "lte": | ||
| case "lessthanorequalto": | ||
| case "<=": | ||
| return LTE; | ||
| case "eq": | ||
| case "equals": | ||
| case "=": | ||
| case "==": | ||
| return EQ; | ||
| case "ne": | ||
| case "notequals": | ||
| case "!=": | ||
| case "<>": | ||
| return NE; | ||
| } | ||
| throw new IllegalArgumentException("Invalid operator " + value); | ||
| } | ||
| } |
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how this is different from what we have like
bound,inandnot