How to use isConsumed method of com.github.kittinunf.fuel.core.requests.DefaultBody class

Best Fuel code snippet using com.github.kittinunf.fuel.core.requests.DefaultBody.isConsumed

UploadBody.kt

Source:UploadBody.kt

...31    /**32     * Returns if the body is consumed.33     * @return [Boolean] if true, `writeTo`, `toStream` and `toByteArray` may throw34     */35    override fun isConsumed() = !inputAvailable36    /**37     * Returns the body emptiness.38     * @return [Boolean] if true, this body is empty39     */40    override fun isEmpty() = false41    /**42     * Returns the body as an [InputStream].43     *44     * @note callers are responsible for closing the returned stream.45     * @note implementations may choose to make the [Body] `isConsumed` and can not be written or read from again.46     *47     * @return the body as input stream48     */49    override fun toStream(): InputStream {50        throw UnsupportedOperationException(51            "Conversion `toStream` is not supported on UploadBody, because the source is not a single single stream." +52                    "Use `toByteArray` to write the contents to memory or `writeTo` to write the contents to a stream."53        )54    }55    /**56     * Returns the body as a [ByteArray].57     *58     * @note Because the body needs to be read into memory anyway, implementations may choose to make the [Body]59     *  readable once more after calling this method, with the original [InputStream] being closed (and release its60     *  resources). This also means that if an implementation choose to keep it around, `isConsumed` returns false.61     *62     * @return the entire body63     */64    override fun toByteArray(): ByteArray {65        return ByteArrayOutputStream(length?.toInt() ?: 32)66            .use { stream ->67                writeTo(stream)68                stream.toByteArray()69            }70            .also { result ->71                // The entire body is now in memory, and can act as a regular body72                request.body(DefaultBody.from(73                        { ByteArrayInputStream(result) },74                        { result.size.toLong() }75                ))76            }77    }78    /**79     * Writes the body to the [OutputStream].80     *81     * @note callers are responses for closing the [OutputStream].82     * @note implementations may choose to make the [Body] `isConsumed` and can not be written or read from again.83     * @note implementations are recommended to buffer the output stream if they can't ensure bulk writing.84     *85     * @param outputStream [OutputStream] the stream to write to86     * @return [Long] the number of bytes written87     */88    override fun writeTo(outputStream: OutputStream): Long {89        if (!inputAvailable) {90            throw FuelError.wrap(IllegalStateException(91                    "The inputs have already been written to an output stream and can not be consumed again."92            ))93        }94        inputAvailable = false95        val lazyDataparts = request.dataParts96        return outputStream.buffered().let { stream ->...

DefaultBody.kt

Source:DefaultBody.kt

...22     */23    override fun asString(contentType: String?): String {24        return when {25            isEmpty() -> "(empty)"26            isConsumed() -> "(consumed)"27            else -> representationOfBytes(contentType ?: URLConnection.guessContentTypeFromStream(openStream()))28        }29    }30    /**31     * Returns the body as a [ByteArray].32     *33     * @note Because the body needs to be read into memory anyway, implementations may choose to make the [Body]34     *  readable once more after calling this method, with the original [InputStream] being closed (and release its35     *  resources). This also means that if an implementation choose to keep it around, `isConsumed` returns false.36     *37     * @return the entire body38     */39    override fun toByteArray(): ByteArray {40        if (isEmpty()) {41            return ByteArray(0)42        }43        return ByteArrayOutputStream(length?.toInt() ?: 32)44            .use { stream ->45                writeTo(stream)46                stream.toByteArray()47            }48            .also { result ->49                openStream = { ByteArrayInputStream(result) }50                calculateLength = { result.size.toLong() }51            }52    }53    /**54     * Returns the body as an [InputStream].55     *56     * @note callers are responsible for closing the returned stream.57     * @note implementations may choose to make the [Body] `isConsumed` and can not be written or read from again.58     *59     * @return the body as input stream60     */61    override fun toStream(): InputStream = openStream().buffered().apply {62        // The caller is now responsible for this stream. This make sure that you can't call this twice without handling63        // it. The caller must still call `.close()` on the returned value when done.64        openStream = CONSUMED_STREAM65    }66    /**67     * Writes the body to the [OutputStream].68     *69     * @note callers are responses for closing the [OutputStream].70     * @note implementations may choose to make the [Body] `isConsumed` and can not be written or read from again.71     * @note implementations are recommended to buffer the output stream if they can't ensure bulk writing.72     *73     * @param outputStream [OutputStream] the stream to write to74     * @return [Long] the number of bytes written75     */76    override fun writeTo(outputStream: OutputStream): Long {77        val inputStream = openStream()78        // `copyTo` writes efficiently using a buffer. Reading ensured to be buffered by calling `.buffered`79        return inputStream.buffered()80            .use { it.copyTo(outputStream) }81            .also {82                // The outputStream could be buffered, but we are done reading, so it's time to flush what's left83                outputStream.flush()84                // This prevents implementations from consuming the input stream twice85                openStream = CONSUMED_STREAM86            }87    }88    /**89     * Returns the body emptiness.90     * @return [Boolean] if true, this body is empty91     */92    override fun isEmpty() = openStream === EMPTY_STREAM || (length == 0L)93    /**94     * Returns if the body is consumed.95     * @return [Boolean] if true, `writeTo`, `toStream` and `toByteArray` may throw96     */97    override fun isConsumed() = openStream === CONSUMED_STREAM98    /**99     * Returns the length of the body in bytes100     * @return [Long?] the length in bytes, null if it is unknown101     */102    override val length: Long? by lazy {103        calculateLength?.invoke()?.let {104            if (it == -1L) { null } else { it }105        }106    }107    companion object {108        private val EMPTY_STREAM = {109            ByteArrayInputStream(ByteArray(0))110        }111        private val CONSUMED_STREAM = {...

BodyTest.kt

Source:BodyTest.kt

...14    @Test15    fun bodyIsEmptyByDefault() {16        val body = DefaultBody()17        assertThat(body.isEmpty(), equalTo(true))18        assertThat(body.isConsumed(), equalTo(false))19        val request = DefaultRequest(Method.POST, URL("https://test.fuel.com/"))20        assertThat(request.toString(), containsString("(empty)"))21    }22    @Test23    fun bodyIsConsumedAfterWriting() {24        val body = DefaultBody.from({ ByteArrayInputStream("body".toByteArray()) }, { 4 })25        assertThat(body.isConsumed(), equalTo(false))26        body.writeTo(ByteArrayOutputStream())27        assertThat(body.isConsumed(), equalTo(true))28    }29    @Test30    fun bodyFromString() {31        val value = "String Body ${Math.random()}"32        DefaultRequest(Method.POST, URL("https://test.fuel.com/"))33            .body(value)34            .apply {35                val output = ByteArrayOutputStream(value.length)36                assertThat(body.length?.toInt(), equalTo(value.length))37                assertThat(body.toByteArray(), equalTo(value.toByteArray()))38                body.writeTo(output)39                assertThat(output.toString(), equalTo(value))40            }41    }...

RepeatableBody.kt

Source:RepeatableBody.kt

...15    /**16     * Writes the body to the [OutputStream].17     *18     * @note callers are responses for closing the [OutputStream].19     * @note implementations may choose to make the [Body] `isConsumed` and can not be written or read from again.20     * @note implementations are recommended to buffer the output stream if they can't ensure bulk writing.21     *22     * @param outputStream [OutputStream] the stream to write to23     * @return [Long] the number of bytes written24     */25    override fun writeTo(outputStream: OutputStream): Long {26        val repeatableBodyStream = ByteArrayInputStream(toByteArray())27        return body.writeTo(outputStream)28                .also { length -> body = DefaultBody.from({ repeatableBodyStream }, { length }) }29    }30    /**31     * Returns the body as a [ByteArray].32     *33     * @note Because the body needs to be read into memory anyway, implementations may choose to make the [Body]34     *  readable once more after calling this method, with the original [InputStream] being closed (and release its35     *  resources). This also means that if an implementation choose to keep it around, `isConsumed` returns false.36     *37     * @return the entire body38     */39    override fun toByteArray() = body.toByteArray()40    /**41     * Returns the body as an [InputStream].42     *43     * @note callers are responsible for closing the returned stream.44     * @note implementations may choose to make the [Body] `isConsumed` and can not be written or read from again.45     *46     * @return the body as input stream47     */48    override fun toStream() = body.toStream()49    /**50     * Returns the body emptiness.51     * @return [Boolean] if true, this body is empty52     */53    override fun isEmpty() = body.isEmpty()54    /**55     * Returns if the body is consumed.56     * @return [Boolean] if true, `writeTo`, `toStream` and `toByteArray` may throw57     */58    override fun isConsumed() = body.isConsumed()59    /**60     * Represents this body as a string61     * @param contentType [String] the type of the content in the body, or null if a guess is necessary62     * @return [String] the body as a string or a string that represents the body such as (empty) or (consumed)63     */64    override fun asString(contentType: String?) = body.asString(contentType)65    /**66     * Returns the length of the body in bytes67     * @return [Long?] the length in bytes, null if it is unknown68     */69    override val length = body.length70    /**71     * Makes the body repeatable by e.g. loading its contents into memory72     * @return [RepeatableBody] the body to be repeated...

RepeatableBodyTest.kt

Source:RepeatableBodyTest.kt

...10class RepeatableBodyTest {11    @Test12    fun repeatableBodyIsNeverConsumed() {13        val body = DefaultBody.from({ ByteArrayInputStream("body".toByteArray()) }, { 4 }).asRepeatable()14        assertThat(body.isConsumed(), equalTo(false))15        body.writeTo(ByteArrayOutputStream())16        assertThat(body.isConsumed(), equalTo(false))17    }18    @Test19    fun byteArrayBodyIsRepeatable() {20        val value = ByteArray(32).apply {21            for (i in 0..(this.size - 1)) {22                this[i] = ('A'..'z').random().toByte()23            }24        }25        DefaultRequest(Method.POST, URL("https://test.fuel.com/"))26            .body(value)27            .apply {28                val output = ByteArrayOutputStream(value.size)29                assertThat(body.length?.toInt(), equalTo(value.size))30                assertThat(body.toByteArray(), equalTo(value))31                body.writeTo(output)32                assertThat(output.toString(), equalTo(String(value)))33                assertThat(body.isConsumed(), equalTo(false))34            }35    }36    @Test37    fun stringBodyIsRepeatable() {38        val value = "body"39        DefaultRequest(Method.POST, URL("https://test.fuel.com/"))40            .body(value)41            .apply {42                val output = ByteArrayOutputStream(value.length)43                assertThat(body.length?.toInt(), equalTo(value.length))44                assertThat(body.toByteArray(), equalTo(value.toByteArray()))45                body.writeTo(output)46                assertThat(output.toString(), equalTo(value))47                assertThat(body.isConsumed(), equalTo(false))48            }49    }50    @Test51    fun requestWithRepeatableBodyIsPrintableAfterConsumption() {52        val value = "String Body ${Math.random()}"53        DefaultRequest(Method.POST, URL("https://test.fuel.com/"))54            .body(value)55            .apply {56                val output = ByteArrayOutputStream()57                body.writeTo(output)58                assertThat(this.toString(), CoreMatchers.containsString(value))59            }60    }61}...

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