com.caoccao.javet.values.reference.V8ValueMap Maven / Gradle / Ivy

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Javet is Java + V8 (JAVa + V + EighT). It is an awesome way of embedding Node.js and V8 in Java.
There is a newer version: 4.0.0
/*
 * Copyright (c) 2021-2022. caoccao.com Sam Cao
 *
 * 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.caoccao.javet.values.reference;

import com.caoccao.javet.annotations.CheckReturnValue;
import com.caoccao.javet.enums.V8ValueReferenceType;
import com.caoccao.javet.exceptions.JavetException;
import com.caoccao.javet.interfaces.IJavetBiConsumer;
import com.caoccao.javet.interfaces.IJavetBiIndexedConsumer;
import com.caoccao.javet.interfaces.IJavetUniConsumer;
import com.caoccao.javet.interfaces.IJavetUniIndexedConsumer;
import com.caoccao.javet.interop.V8Runtime;
import com.caoccao.javet.values.V8Value;

import java.util.Objects;

@SuppressWarnings("unchecked")
public class V8ValueMap extends V8ValueObject implements IV8ValueMap {
    protected static final String FUNCTION_ENTRIES = "entries";
    protected static final String FUNCTION_KEYS = "keys";
    protected static final String FUNCTION_VALUES = "values";

    V8ValueMap(V8Runtime v8Runtime, long handle) throws JavetException {
        super(v8Runtime, handle);
    }

    @Override
    public  int forEach(
            IJavetUniConsumer consumer) throws JavetException, E {
        Objects.requireNonNull(consumer);
        int count = 0;
        try (IV8ValueIterator iterator = (IV8ValueIterator) getKeys()) {
            while (true) {
                try (Key key = iterator.getNext()) {
                    if (key == null) {
                        break;
                    }
                    consumer.accept(key);
                }
                count++;
            }
        }
        return count;
    }

    @Override
    public  int forEach(
            IJavetUniIndexedConsumer consumer) throws JavetException, E {
        Objects.requireNonNull(consumer);
        int count = 0;
        try (IV8ValueIterator iterator = (IV8ValueIterator) getKeys()) {
            while (true) {
                try (Key key = iterator.getNext()) {
                    if (key == null) {
                        break;
                    }
                    consumer.accept(count, key);
                }
                count++;
            }
        }
        return count;
    }

    @Override
    public  int forEach(
            IJavetBiConsumer consumer) throws JavetException, E {
        Objects.requireNonNull(consumer);
        int count = 0;
        try (IV8ValueIterator iterator = getEntries()) {
            while (true) {
                try (V8ValueArray entry = iterator.getNext()) {
                    if (entry == null) {
                        break;
                    }
                    try (Key key = entry.get(0); Value value = entry.get(1)) {
                        consumer.accept(key, value);
                    }
                    count++;
                }
            }
        }
        return count;
    }

    @Override
    public  int forEach(
            IJavetBiIndexedConsumer consumer) throws JavetException, E {
        Objects.requireNonNull(consumer);
        int count = 0;
        try (IV8ValueIterator iterator = getEntries()) {
            while (true) {
                try (V8ValueArray entry = iterator.getNext()) {
                    if (entry == null) {
                        break;
                    }
                    try (Key key = entry.get(0); Value value = entry.get(1)) {
                        consumer.accept(count, key, value);
                    }
                    count++;
                }
            }
        }
        return count;
    }

    @Override
    @CheckReturnValue
    public IV8ValueIterator getEntries() throws JavetException {
        return invoke(FUNCTION_ENTRIES);
    }

    @Override
    @CheckReturnValue
    public IV8ValueIterator getKeys() throws JavetException {
        return invoke(FUNCTION_KEYS);
    }

    @Override
    public int getSize() throws JavetException {
        return checkV8Runtime().getV8Internal().getSize(this);
    }

    @Override
    public V8ValueReferenceType getType() {
        return V8ValueReferenceType.Map;
    }

    @Override
    @CheckReturnValue
    public IV8ValueIterator getValues() throws JavetException {
        return invoke(FUNCTION_VALUES);
    }
}