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initial version with PinotJsonContainsPredicate
resolved style and deferred dependency issue
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plugin/trino-pinot/src/main/java/io/trino/plugin/pinot/PinotJsonContainsPredicate.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,186 @@ | ||
| /* | ||
| * Licensed 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 io.trino.plugin.pinot; | ||
|
|
||
| import com.fasterxml.jackson.annotation.JsonCreator; | ||
| import com.fasterxml.jackson.annotation.JsonProperty; | ||
| import io.airlift.slice.Slice; | ||
| import io.trino.spi.block.IntArrayBlock; | ||
| import io.trino.spi.block.VariableWidthBlock; | ||
| import io.trino.spi.expression.Call; | ||
| import io.trino.spi.expression.ConnectorExpression; | ||
| import io.trino.spi.expression.Constant; | ||
| import io.trino.spi.expression.FunctionName; | ||
| import io.trino.spi.expression.Variable; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
|
||
| import static com.google.common.base.MoreObjects.toStringHelper; | ||
| import static java.util.Objects.requireNonNull; | ||
|
|
||
| public class PinotJsonContainsPredicate | ||
| implements PinotJsonPredicate | ||
| { | ||
| private final String columnName; | ||
| private final String jsonPath; | ||
| private final List<String> values; | ||
| private final boolean valuesContainsStrings; | ||
| private final String type; | ||
|
|
||
| @JsonCreator | ||
| public PinotJsonContainsPredicate( | ||
| @JsonProperty("columnName") String columnName, | ||
| @JsonProperty("jsonPath") String jsonPath, | ||
| @JsonProperty("values") List<String> values, | ||
| @JsonProperty("valuesContainsStrings") boolean valuesContainsStrings, | ||
| @JsonProperty("type") String type) | ||
| { | ||
| this.columnName = requireNonNull(columnName, "columnName is null"); | ||
| this.jsonPath = requireNonNull(jsonPath, "jsonPath is null"); | ||
| this.values = requireNonNull(values, "values is null"); | ||
| this.valuesContainsStrings = valuesContainsStrings; | ||
| this.type = "contains"; | ||
| } | ||
|
|
||
| @JsonProperty | ||
| public String getColumnName() | ||
| { | ||
| return columnName; | ||
| } | ||
|
|
||
| @JsonProperty | ||
| public String getJsonPath() | ||
| { | ||
| return jsonPath; | ||
| } | ||
|
|
||
| @JsonProperty | ||
| public List<String> getValues() | ||
| { | ||
| return values; | ||
| } | ||
|
|
||
| @JsonProperty | ||
| public boolean getValuesContainsStrings() | ||
| { | ||
| return valuesContainsStrings; | ||
| } | ||
|
|
||
| @JsonProperty | ||
| public String getType() | ||
| { | ||
| return type; | ||
| } | ||
|
|
||
| public PinotJsonContainsPredicate(Call call) | ||
| { | ||
| List<ConnectorExpression> containsCallArgs = call.getArguments(); | ||
| Constant arrayArg = (Constant) containsCallArgs.getFirst(); | ||
| values = new ArrayList<>(); | ||
| if (arrayArg.getValue() instanceof VariableWidthBlock stringArray) { | ||
| valuesContainsStrings = true; | ||
| for (int index = 0; index < stringArray.getPositionCount(); index++) { | ||
| values.add(stringArray.getSlice(index).toStringUtf8()); | ||
| } | ||
| } | ||
| else if (arrayArg.getValue() instanceof IntArrayBlock intArray) { | ||
| valuesContainsStrings = false; | ||
| for (int index = 0; index < intArray.getPositionCount(); index++) { | ||
| values.add(String.valueOf(intArray.getInt(index))); | ||
| } | ||
| } | ||
| else { | ||
| throw new IllegalArgumentException("Unsupported array argument type: " + arrayArg.getValue()); | ||
| } | ||
|
|
||
| Call innerCall = (Call) containsCallArgs.get(1); | ||
| Call jsonExtractScalarCall = innerCall; | ||
| if (new FunctionName("$cast").equals(innerCall.getFunctionName())) { | ||
| jsonExtractScalarCall = (Call) innerCall.getArguments().getFirst(); | ||
| } | ||
|
|
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| List<ConnectorExpression> args = jsonExtractScalarCall.getArguments(); | ||
| columnName = ((Variable) args.get(0)).getName(); | ||
| jsonPath = ((Slice) ((Constant) args.get(1)).getValue()).toStringUtf8(); | ||
| type = "contains"; | ||
| } | ||
|
|
||
| public static boolean supportsCall(Call call) | ||
| { | ||
| if (!new FunctionName("contains").equals(call.getFunctionName())) { | ||
| return false; | ||
| } | ||
|
|
||
| List<ConnectorExpression> arguments = call.getArguments(); | ||
| ConnectorExpression arrayArg = arguments.get(0); | ||
| if (!(arrayArg instanceof Constant) || !(arguments.get(1) instanceof Call innerCall)) { | ||
| return false; | ||
| } | ||
|
|
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| Constant constant = (Constant) arrayArg; | ||
| if (!(constant.getValue() instanceof VariableWidthBlock || constant.getValue() instanceof IntArrayBlock)) { | ||
| return false; | ||
| } | ||
|
|
||
| if (new FunctionName("$cast").equals(innerCall.getFunctionName())) { | ||
| List<ConnectorExpression> castArguments = innerCall.getArguments(); | ||
| if (!(castArguments.getFirst() instanceof Call jsonExtracatScalarCall)) { | ||
| return false; | ||
| } | ||
| return isSupportedJsonExtractScalarCall(jsonExtracatScalarCall); | ||
| } | ||
| else { | ||
| return isSupportedJsonExtractScalarCall(innerCall); | ||
| } | ||
| } | ||
|
|
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| private static boolean isSupportedJsonExtractScalarCall(Call call) | ||
| { | ||
| if (!new FunctionName("json_extract_scalar").equals(call.getFunctionName())) { | ||
| return false; | ||
| } | ||
|
|
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| List<ConnectorExpression> arguments = call.getArguments(); | ||
| if (!(arguments.get(0) instanceof Variable) || !(arguments.get(1) instanceof Constant)) { | ||
| return false; | ||
| } | ||
|
|
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| // TODO: resolve dependency issues to allow usage of io.trino.type.JsonType | ||
| // return arguments.get(0).getType() instanceof JsonType; | ||
|
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| return true; | ||
| } | ||
|
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| @Override | ||
| public String toPQL() | ||
| { | ||
| String escape = valuesContainsStrings ? "''" : ""; | ||
| String values = String.join(String.format("%s,%s", escape, escape), this.values); | ||
| return String.format("JSON_MATCH(%s, '\"%s\" in (%s%s%s)')", | ||
| columnName, jsonPath, escape, values, escape); | ||
| } | ||
|
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| @Override | ||
| public String toString() | ||
| { | ||
| return toStringHelper(this) | ||
| .add("columnName", columnName) | ||
| .add("jsonPath", jsonPath) | ||
| .add("values", values) | ||
| .add("valuesContainsStrings", valuesContainsStrings) | ||
| .add("type", type) | ||
| .toString(); | ||
| } | ||
| } |
34 changes: 34 additions & 0 deletions
34
plugin/trino-pinot/src/main/java/io/trino/plugin/pinot/PinotJsonPredicate.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| /* | ||
| * Licensed 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 io.trino.plugin.pinot; | ||
|
|
||
| import com.fasterxml.jackson.annotation.JsonSubTypes; | ||
| import com.fasterxml.jackson.annotation.JsonTypeInfo; | ||
| import io.trino.spi.expression.Call; | ||
|
|
||
| @JsonTypeInfo( | ||
| use = JsonTypeInfo.Id.NAME, | ||
| property = "type") | ||
| @JsonSubTypes({ | ||
| @JsonSubTypes.Type(value = PinotJsonContainsPredicate.class, name = "contains") | ||
| }) | ||
| public interface PinotJsonPredicate | ||
| { | ||
| static boolean supportsCall(Call call) | ||
| { | ||
| return false; | ||
| } | ||
|
|
||
| String toPQL(); | ||
| } |
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