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/*
 * Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
 *
 * 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 com.hazelcast.json.internal;

import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;

import java.io.IOException;

import static com.hazelcast.json.internal.JsonDataSerializerHook.JSON_SCHEMA_TERMINAL_NODE;

/**
 * Represents the description of a Json terminal value. These are null,
 * true, false, number or string.
 */
public class JsonSchemaTerminalNode extends JsonSchemaNode {

    private int valueStartLocation;

    public JsonSchemaTerminalNode() {
        // No-op.
    }

    public JsonSchemaTerminalNode(JsonSchemaStructNode parent) {
        super(parent);
    }

    /**
     * Points to the location where this object starts in underlying
     * input. The returned value is offset from the start of the
     * object. The unit of the offset depends on the context.
     *
     * @return
     */
    public int getValueStartLocation() {
        return valueStartLocation;
    }

    /**
     * Sets the location of the value in the underlying input.
     *
     * @param valueStartLocation
     */
    public void setValueStartLocation(int valueStartLocation) {
        this.valueStartLocation = valueStartLocation;
    }

    @Override
    public boolean isTerminal() {
        return true;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        JsonSchemaTerminalNode that = (JsonSchemaTerminalNode) o;

        return valueStartLocation == that.valueStartLocation;
    }

    @Override
    public int hashCode() {
        int result = super.hashCode();
        result = 31 * result + valueStartLocation;
        return result;
    }

    @Override
    public String toString() {
        return "JsonSchemaTerminalNode{"
            + "valueStartLocation=" + valueStartLocation
            + '}';
    }

    @Override
    public void writeData(ObjectDataOutput out) throws IOException {
        out.writeInt(valueStartLocation);
    }

    @Override
    public void readData(ObjectDataInput in) throws IOException {
        valueStartLocation = in.readInt();
    }

    @Override
    public int getFactoryId() {
        return JsonDataSerializerHook.F_ID;
    }

    @Override
    public int getClassId() {
        return JSON_SCHEMA_TERMINAL_NODE;
    }
}