org.dizitart.kno2.Documents.kt Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of potassium-nitrite Show documentation

Kotlin extension for Nitrite

There is a newer version: 4.3.0

/*
 *
 * Copyright 2017 Nitrite author or authors.
 *
 * 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 org.dizitart.kno2

import org.dizitart.no2.Document

/**
 * @since 2.1.0
 * @author Anindya Chatterjee
 */

/**
 * Creates an empty [Document].
 *
 * @return an empty [Document]
 */
fun emptyDocument() = Document(emptyMap())

/**
 * Creates an empty [Document].
 *
 * @return an empty [Document]
 */
fun documentOf() = emptyDocument()

/**
 * Creates a [Document] from a [Pair].
 *
 * @return a [Document] containing the [pair]
 */
fun documentOf(pair: Pair) : Document {
    return emptyDocument().put(pair.first, pair.second)!!
}

/**
 * Creates a [Document] from a list of [Pair]s.
 *
 * @return a [Document] containing the [pairs]
 */
fun documentOf(vararg pairs: Pair) : Document {
    return if (pairs.isEmpty()) {
        emptyDocument()
    } else {
        val doc = emptyDocument()
        pairs.forEach { pair -> doc.put(pair.first, pair.second) }
        doc
    }
}