io.trino.operator.scalar.JsonPath Maven / Gradle / Ivy
/*
* 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.operator.scalar;
import io.airlift.slice.Slice;
import static java.util.Objects.requireNonNull;
public class JsonPath
{
private final String pattern;
private final JsonExtract.JsonExtractor scalarExtractor;
private final JsonExtract.JsonExtractor objectExtractor;
private final JsonExtract.JsonExtractor sizeExtractor;
public JsonPath(String pattern)
{
this.pattern = requireNonNull(pattern, "pattern is null");
scalarExtractor = JsonExtract.generateExtractor(pattern, new JsonExtract.ScalarValueJsonExtractor());
objectExtractor = JsonExtract.generateExtractor(pattern, new JsonExtract.JsonValueJsonExtractor());
sizeExtractor = JsonExtract.generateExtractor(pattern, new JsonExtract.JsonSizeExtractor());
}
public String pattern()
{
return pattern;
}
public JsonExtract.JsonExtractor getScalarExtractor()
{
return scalarExtractor;
}
public JsonExtract.JsonExtractor getObjectExtractor()
{
return objectExtractor;
}
public JsonExtract.JsonExtractor getSizeExtractor()
{
return sizeExtractor;
}
@Override
public String toString()
{
return pattern;
}
}