vxquery-core/src/main/java/org/apache/vxquery/runtime/functions/jsonitem/AbstractObjectConstructorScalarEvaluator.java

/*
 * 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.vxquery.runtime.functions.jsonitem;

import org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator;
import org.apache.hyracks.api.context.IHyracksTaskContext;
import org.apache.hyracks.data.std.api.IPointable;
import org.apache.hyracks.data.std.util.ArrayBackedValueStorage;
import org.apache.vxquery.datamodel.accessors.TaggedValuePointable;
import org.apache.vxquery.datamodel.builders.jsonitem.ObjectBuilder;
import org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluator;
import org.apache.vxquery.runtime.functions.util.FunctionHelper;

import java.util.ArrayList;
import java.util.List;

public abstract class AbstractObjectConstructorScalarEvaluator extends AbstractTaggedValueArgumentScalarEvaluator {
    protected final IHyracksTaskContext ctx;
    protected final ObjectBuilder ob;
    protected final List<TaggedValuePointable> tvps;

    public AbstractObjectConstructorScalarEvaluator(IHyracksTaskContext ctx, IScalarEvaluator[] args) {
        super(args);
        this.ctx = ctx;
        ob = new ObjectBuilder();
        tvps = new ArrayList<>();
    }

    protected boolean isDuplicateKeys(IPointable key, List<TaggedValuePointable> pointables) {
        for (TaggedValuePointable tvp : pointables) {
            if (tvp != null && FunctionHelper.arraysEqual(tvp, key)) {
                return true;
            }
        }
        return false;
    }
}