Update documentation and logging

gradle.properties

@@ -5,7 +5,7 @@ org.gradle.warning.mode=all
 org.gradle.console=plain
 
 # Gradle
-version=3.0.2
+version=3.0.3
 group=com.hexagonkt
 description=The atoms of your platform
 
@@ -37,7 +37,7 @@ mockkVersion=1.13.7
 junitVersion=5.10.0
 gatlingVersion=3.9.5
 jmhVersion=1.37
-mkdocsMaterialVersion=9.2.3
+mkdocsMaterialVersion=9.2.4
 mermaidDokkaVersion=0.4.4
 nativeToolsVersion=0.9.24
 

http/http/src/main/kotlin/com/hexagonkt/http/Http.kt

@@ -2,8 +2,10 @@ package com.hexagonkt.http
 
 import com.hexagonkt.core.assertEnabled
 import com.hexagonkt.core.Jvm
+import com.hexagonkt.core.logging.Logger
 import com.hexagonkt.core.media.MediaType
 import com.hexagonkt.http.model.*
+import java.lang.IllegalStateException
 import java.math.BigInteger
 import java.net.URLDecoder
 import java.net.URLEncoder
@@ -22,6 +24,8 @@ val BODY_TYPES = setOf(String::class, ByteArray::class, Int::class, Long::class)
 
 val BODY_TYPES_NAMES = BODY_TYPES.joinToString(", ") { it.simpleName.toString() }
 
+private val logger: Logger = Logger(SslSettings::class.java.packageName)
+
 fun checkHeaders(headers: Headers) {
     if (!assertEnabled)
         return
@@ -124,6 +128,12 @@ fun bodyToBytes(body: Any): ByteArray =
         is ByteArray -> body
         is Int -> BigInteger.valueOf(body.toLong()).toByteArray()
         is Long -> BigInteger.valueOf(body).toByteArray()
-        else ->
-            error("Unsupported body type: ${body.javaClass.simpleName}. Must be: $BODY_TYPES_NAMES")
+        else -> {
+            val className = body.javaClass.simpleName
+            val message = "Unsupported body type: $className. Must be: $BODY_TYPES_NAMES"
+            val exception = IllegalStateException(message)
+
+            logger.error(exception)
+            throw exception
+        }
     }

http/http_handlers/README.md

@@ -12,6 +12,11 @@ feature (as [http_server_jetty]) in order to create an HTTP server.
 
 [http_server_jetty]: /http_server_jetty
 
+# Chaining changes
+The response can be modified chaining `send` calls (or its utility methods). However, If calls are
+not chained, only the last one will be applied. I.e.: `send().send()` will apply both calls changes,
+while `send(); send()` will pass only the last send method result.
+
 # Context on HTTP processing
 An HTTP server is nothing more than a function that takes a request and returns a response. Requests
 and responses comply with several Web standards.

http/http_test/src/main/kotlin/com/hexagonkt/http/test/examples/SamplesTest.kt

@@ -33,6 +33,7 @@ import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.TestInstance
 import org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS
 import java.net.InetAddress
+import java.net.URI
 import kotlin.test.assertEquals
 
 @TestInstance(PER_CLASS)
@@ -240,20 +241,38 @@ abstract class SamplesTest(
 
             // callbackResponse
             get("/response") {
-                response.body                       // Get response content
-                response.status                     // Get the response status
-                response.contentType                // Get the content type
+                response.body                     // Get response content
+                response.status                   // Get the response status
+                response.contentType              // Get the content type
 
-                status                              // Shortcut of `response.status`
+                status                            // Shortcut of `response.status`
 
                 send(
                     status = UNAUTHORIZED_401,                  // Set status code to 401
                     body = "Hello",                             // Sets content to Hello
                     contentType = ContentType(APPLICATION_XML), // Set application/xml content type
                     headers = response.headers
-                        + Header("foo", "bar")      // Sets header FOO with single value bar
-                        + Header("baz", "1", "2")   // Sets header FOO values with [ bar ]
+                        + Header("foo", "bar")    // Sets header FOO with single value bar
+                        + Header("baz", "1", "2") // Sets header FOO values with [ bar ]
                 )
+
+                // Utility methods for generating common responses
+                unauthorized("401: authorization missing")
+                forbidden("403: access not granted")
+                internalServerError("500: server error")
+                serverError(NOT_IMPLEMENTED_501, RuntimeException("Error"))
+                ok("Correct")
+                badRequest("400: incorrect request")
+                notFound("404: Missing resource")
+                created("201: Created")
+                redirect(FOUND_302, URI("/location"))
+
+                // The response can be modified chaining send calls (or its utility methods)
+                ok("Replacing headers").send(headers = Headers())
+
+                // If calls are not chained, only the last one will be applied
+                ok("Intending to replace headers")
+                send(headers = Headers()) // This will be passed, but previous ok will be ignored
             }
             // callbackResponse
 
@@ -338,7 +357,7 @@ abstract class SamplesTest(
                 assertEquals("Invalid request", callResponse.body)
                 assertEquals(OK_200, it.get("/request", body = "body", contentType = json).status)
 
-                assertEquals(UNAUTHORIZED_401, it.get("/response").status)
+                assertEquals(NOT_FOUND_404, it.get("/response").status)
                 assertEquals(OK_200, it.get("/pathParam/param").status)
                 assertEquals(OK_200, it.get("/queryParam").status)
                 assertEquals(OK_200, it.get("/formParam").status)

site/assets/css/mkdocs.css

@@ -83,7 +83,10 @@ ul.md-source__facts {
 
 div.md-hero + nav.md-tabs {
   background: #31415C;
-  text-align: center;
+}
+
+ul.md-tabs__list {
+  justify-content: center;
 }
 
 .md-hero {