Remove support for java class loader

README.adoc

@@ -325,7 +325,7 @@ Camel K supports multiple languages for writing integrations:
 [options="header"]
 |=======================
 | Language			| Description
-| Java				| Both integrations in source `.java` files or compiled `.class` file can be run.
+| Java				| Integrations written in plain Java DSL are supported.
 | XML				| Integrations written in plain XML DSL are supported (Spring XML or Blueprint not supported).
 | Groovy			| Groovy `.groovy` files are supported (experimental).
 | JavaScript        | JavaScript `.js` files are supported (experimental).

docs/modules/ROOT/pages/languages/groovy.adoc

@@ -1,6 +1,6 @@
 = Writing Integrations in Groovy
 
-An integration written in Groovy looks very similar to a Java one except it can leverages Groovy's language enhancements over Java:
+An integration written in Groovy looks very similar to a Java one except it can leverages Groovy's language enhancements over Java such as closures:
 
 [source,groovy]
 ----
@@ -9,89 +9,148 @@ from('timer:tick')
     .to('log:info')
 ----
 
-Camel K extends the Camel Java DSL making it easier to configure the context in which the integration runs using the top level _context_ block
+== Configuring the Application
 
-[source,groovy]
-----
-context {
-  // configure the context here
-}
-----
-
-At the moment the enhanced DSL provides a way to bind items to the registry, to configure the components the context creates and some improvements over the REST DSL.
-
-== Registry Configuration
-
-The registry is accessible using the _registry_ block inside the _context_ one:
+Camel K extends the Camel Java DSL making it easier to configure Camel's behavior using the top level _camel_ block
 
 [source,groovy]
 ----
-context {
-    registry {
-      bind "my-cache", Caffeine.newBuilder().build() // <1>
-      bind "my-processor", processor { // <2>
-         it.in.body = 'Hello Camel K!'
-      }
-      bind "my-predicate", predicate { // <3>
-         it.in.body != null
-      }
-    }
+camel {
+  // configure camel here
 }
 ----
-<1> bind a bean to the context
-<2> define a custom processor to be used later in the routes by ref
-<3> define a custom predicate to be used later in the routes by ref
-
-
-== Components Configuration
 
-Components can be configured within the _components_ block inside the _context_ one:
+The _camel_ block allows to configure the following Camel features:
 
+- **Components**
++
 [source,groovy]
 ----
-context {
+camel {
     components {
-        'seda' { // <1>
+        seda { // <1>
             queueSize = 1234
             concurrentConsumers = 12
         }
 
-        'log' { // <2>
+        log { // <2>
             exchangeFormatter = {
                 'body ==> ' + it.in.body
             } as org.apache.camel.spi.ExchangeFormatter
         }
+
+        mySeda(SedaComponent) { // <3>
+            queueSize = 4321
+            concurrentConsumers = 21
+        }
     }
 }
 ----
 <1> configure the properties of the component whit name _seda_
 <2> configure the properties of the component whit name _log_
-
+<3> creates and configure a component of type `SedaComponent` whose name is _mySeda_
++
 Setting the property _exchangeFormatter_ looks a little ugly as you have to declare the type of your closure. For demonstration purpose we have created a Groovy extension module that simplify configuring the _exchangeFormatter_ so you can rewrite your DSL as
-
++
 [source,groovy]
 ----
-context {
+camel {
     components {
-        ...
-
-        'log' {
+        log {
             formatter {
                 'body ==> ' + it.in.body
             }
         }
     }
 }
 ----
-
++
 which is much better.
-
++
 [TIP]
 ====
 You can provide your custom extensions by packaging them in a dependency you declare for your integration.
 ====
 
-== Rest Endpoints
+- **Languages **
++
+[source,groovy]
+----
+camel {
+    languages {
+        language("bean") { // <1>
+            beanType = String.class
+            method = "toUpperCase"
+        }
+        myBean(BeanLanguage) { // <2>
+            beanType = String.class
+            method = "toLowerCase"
+        }
+        simple { // <3>
+        }
+    }
+}
+----
+<1> configure the properties of the language whit name _bean_
+<2> creates and configure a language of type `BeanLanguage` whose name is _myBean_
+<3> configure the properties of the language whit name _simple_
+
+- **DataFormats**
++
+[source,groovy]
+----
+camel {
+    dataFormats {
+        dataFormat("json-jackson") { // <1>
+            unmarshalType = Map.class
+            prettyPrint = true
+        }
+        myJackson(JacksonDataFormat) { // <2>
+            unmarshalType = String.class
+            prettyPrint = false
+        }
+        csv { // <3>
+        }
+    }
+}
+----
+<1> configure the properties of the data format whit name _json-jackson_
+<2> creates and configure a data format of type `JacksonDataFormat` whose name is _myJackson_
+<3> configure the properties of the data format whit name _csv_
+
+
+== Beans
+
+Beans can be bound to the _registry_ using a dedicated _bean DSL_ :
+
+[source,groovy]
+----
+beans {
+    myCache = Caffeine.newBuilder().build() // <1>
+
+    myProcessor = processor { // <2>
+        it.in.body = 'Hello Camel K!'
+    }
+
+    myPredicate = predicate { // <3>
+        it.in.body != null
+    }
+
+    dataSource(org.apache.commons.dbcp2.BasicDataSource) { //<4>
+        driverClassName = "org.h2.Driver"
+        url = "jdbc:h2:mem:camel"
+        username = "sa"
+        password = ""
+    }
+}
+----
+<1> define a bean
+<2> define a custom processor
+<3> define a custom predicate
+<3> define a custom bean with name `dataSource` and type `org.apache.commons.dbcp2.BasicDataSource`
+
+
+=== Rest Support
 
 Integrations's REST endpoints can be configured using the top level _rest_ block:
 
@@ -103,10 +162,22 @@ rest {
         port '9192'
     }
 
-    path('/my/path') { // <2>
-        // standard Rest DSL
+    path('/my/path') {
+        get('/get') { // <2>
+            consumes 'application/json'
+            produces 'application/json'
+            to 'direct:get'
+        }
+    }
+
+    post { // <3>
+        path '/post'
+        consumes 'application/json'
+        produces 'application/json'
+        to 'direct:post'
     }
 }
 ----
 <1> Configure the rest engine
-<2> Configure the rest endpoint for the base path '/my/path'
+<2> Configure the behavior of the method GET for the path '/my/path/get' and invoke the endpoint 'direct:get'
+<2> Configure the behavior of the method POST for the path '/post' and invoke the endpoint 'direct:post'

docs/modules/ROOT/pages/languages/languages.adoc

@@ -11,7 +11,7 @@ Camel K supports multiple languages for writing integrations:
 | xref:languages/groovy.adoc[Groovy]			| Groovy `.groovy` files are supported.
 | xref:languages/kotlin.adoc[Kotlin]			| Kotlin Script `.kts` files are supported.
 | xref:languages/javascript.adoc[JavaScript]	| JavaScript `.js` files are supported.
-| xref:languages/java.adoc[Java]				| Both integrations in source `.java` files or compiled `.class` file can be run.
+| xref:languages/java.adoc[Java]				| Integrations written in plain Java DSL are supported.
 | xref:languages/xml.adoc[XML]					| Integrations written in plain XML DSL are supported (Spring XML or Blueprint not supported).
 |=======================
 

go.sum

@@ -35,6 +35,7 @@ github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdko
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/Rican7/retry v0.1.0/go.mod h1:FgOROf8P5bebcC1DS0PdOQiqGUridaZvikzUmkFW6gg=
+github.com/alecthomas/jsonschema v0.0.0-20190122210438-a6952de1bbe6 h1:xadBCbc8D9mmkaNfCsEBHbIoCjbayJXJNsY1JjPjNio=
 github.com/alecthomas/jsonschema v0.0.0-20190122210438-a6952de1bbe6/go.mod h1:qpebaTNSsyUn5rPSJMsfqEtDw71TTggXM6stUDI16HA=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
@@ -275,6 +276,7 @@ github.com/heketi/heketi v0.0.0-20181109135656-558b29266ce0/go.mod h1:bB9ly3Rchc
 github.com/heketi/rest v0.0.0-20180404230133-aa6a65207413/go.mod h1:BeS3M108VzVlmAue3lv2WcGuPAX94/KN63MUURzbYSI=
 github.com/heketi/tests v0.0.0-20151005000721-f3775cbcefd6/go.mod h1:xGMAM8JLi7UkZt1i4FQeQy0R2T8GLUwQhOP5M1gBhy4=
 github.com/heketi/utils v0.0.0-20170317161834-435bc5bdfa64/go.mod h1:RYlF4ghFZPPmk2TC5REt5OFwvfb6lzxFWrTWB+qs28s=
+github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/huandu/xstrings v1.2.0/go.mod h1:DvyZB1rfVYsBIigL8HwpZgxHwXozlTgGqn63UyNX5k4=
 github.com/iancoleman/strcase v0.0.0-20180726023541-3605ed457bf7/go.mod h1:SK73tn/9oHe+/Y0h39VT4UCxmurVJkR5NA7kMEAOgSE=
@@ -372,12 +374,14 @@ github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn
 github.com/onsi/ginkgo v0.0.0-20170829012221-11459a886d9c/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/ginkgo v1.8.0 h1:VkHVNpR4iVnU8XQR6DBm8BqYjN7CRzw+xKUbVVbbW9w=
 github.com/onsi/ginkgo v1.8.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/gomega v0.0.0-20170829124025-dcabb60a477c/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
 github.com/onsi/gomega v0.0.0-20190113212917-5533ce8a0da3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/onsi/gomega v1.4.2-0.20180831124310-ae19f1b56d53/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
 github.com/onsi/gomega v1.4.2/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
+github.com/onsi/gomega v1.5.0 h1:izbySO9zDPmjJ8rDjLvkA2zJHIo+HkYXHnf7eN7SSyo=
 github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/opencontainers/go-digest v0.0.0-20170106003457-a6d0ee40d420/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
 github.com/opencontainers/go-digest v1.0.0-rc1/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
@@ -414,6 +418,7 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/sftp v0.0.0-20160930220758-4d0e916071f6/go.mod h1:NxmoDg/QLVWluQDUYG7XBZTLUpKeFa8e3aMf1BfjyHk=
 github.com/pmezard/go-difflib v0.0.0-20151028094244-d8ed2627bdf0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pquerna/cachecontrol v0.0.0-20171018203845-0dec1b30a021/go.mod h1:prYjPmNq4d1NPVmpShWobRqXY3q7Vp+80DqgxxUrUIA=
 github.com/pquerna/ffjson v0.0.0-20180717144149-af8b230fcd20/go.mod h1:YARuvh7BUWHNhzDq2OM5tzR2RiCcN2D7sapiKyCel/M=
@@ -504,6 +509,7 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v0.0.0-20151208002404-e3a8ff8ce365/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/syndtr/gocapability v0.0.0-20160928074757-e7cb7fa329f4/go.mod h1:hkRG7XYTFWNJGYcbNJQlaLq0fg1yr4J4t/NcTQtrfww=
 github.com/technosophos/moniker v0.0.0-20180509230615-a5dbd03a2245/go.mod h1:O1c8HleITsZqzNZDjSNzirUGsMT0oGu9LhHKoJrqO+A=
@@ -687,6 +693,7 @@ gopkg.in/natefinch/lumberjack.v2 v2.0.0-20170531160350-a96e63847dc3/go.mod h1:l0
 gopkg.in/natefinch/lumberjack.v2 v2.0.0/go.mod h1:l0ndWWf7gzL7RNwBG7wST/UCcT4T24xpD6X8LsfU/+k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/square/go-jose.v2 v2.0.0-20180411045311-89060dee6a84/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/warnings.v0 v0.1.1/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
 gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
@@ -701,6 +708,7 @@ honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 k8s.io/api v0.0.0-20190918195907-bd6ac527cfd2 h1:bkwe5LsuANqyOwsBng5Qc4S91D2Tv0JHctAztt3YTQs=
 k8s.io/api v0.0.0-20190918195907-bd6ac527cfd2/go.mod h1:AOxZTnaXR/xiarlQL0JUfwQPxjmKDvVYoRp58cA7lUo=
+k8s.io/apiextensions-apiserver v0.0.0-20190918201827-3de75813f604 h1:Kl/sh+wWzYK2hWFZtwvuFECup1SbE2kXfMnhGZsoO5M=
 k8s.io/apiextensions-apiserver v0.0.0-20190918201827-3de75813f604/go.mod h1:7H8sjDlWQu89yWB3FhZfsLyRCRLuoXoCoY5qtwW1q6I=
 k8s.io/apimachinery v0.0.0-20190817020851-f2f3a405f61d h1:7Kns6qqhMAQWvGkxYOLSLRZ5hJO0/5pcE5lPGP2fxUw=
 k8s.io/apimachinery v0.0.0-20190817020851-f2f3a405f61d/go.mod h1:3jediapYqJ2w1BFw7lAZPCx7scubsTfosqHkhXCWJKw=
@@ -772,6 +780,7 @@ sigs.k8s.io/controller-tools v0.2.2/go.mod h1:8SNGuj163x/sMwydREj7ld5mIMJu1cDanI
 sigs.k8s.io/kustomize v2.0.3+incompatible/go.mod h1:MkjgH3RdOWrievjo6c9T245dYlB5QeXV4WCbnt/PEpU=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190302045857-e85c7b244fd2/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
 sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
+sigs.k8s.io/testing_frameworks v0.1.1 h1:cP2l8fkA3O9vekpy5Ks8mmA0NW/F7yBdXf8brkWhVrs=
 sigs.k8s.io/testing_frameworks v0.1.1/go.mod h1:VVBKrHmJ6Ekkfz284YKhQePcdycOzNH9qL6ht1zEr/U=
 sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=

pkg/apis/camel/v1alpha1/integration_types.go

@@ -119,8 +119,6 @@ type Language string
 const (
 	// LanguageJavaSource --
 	LanguageJavaSource Language = "java"
-	// LanguageJavaClass --
-	LanguageJavaClass Language = "class"
 	// LanguageGroovy --
 	LanguageGroovy Language = "groovy"
 	// LanguageJavaScript --
@@ -136,7 +134,6 @@ const (
 // Languages is the list of all supported languages
 var Languages = []Language{
 	LanguageJavaSource,
-	LanguageJavaClass,
 	LanguageGroovy,
 	LanguageJavaScript,
 	LanguageXML,

pkg/apis/camel/v1alpha1/integration_types_support_test.go

@@ -25,7 +25,6 @@ import (
 )
 
 func TestAllLanguages(t *testing.T) {
-	assert.Contains(t, Languages, LanguageJavaClass)
 	assert.Contains(t, Languages, LanguageJavaSource)
 	assert.Contains(t, Languages, LanguageJavaScript)
 	assert.Contains(t, Languages, LanguageGroovy)

pkg/trait/dependencies.go

@@ -87,8 +87,6 @@ func addDefaultRuntimeDependencies(e *Environment) {
 			util.StringSliceUniqueAdd(dependencies, "mvn:org.apache.camel.k/camel-k-loader-xml")
 		case v1alpha1.LanguageJavaScript:
 			util.StringSliceUniqueAdd(dependencies, "mvn:org.apache.camel.k/camel-k-loader-js")
-		case v1alpha1.LanguageJavaClass:
-			util.StringSliceUniqueAdd(dependencies, "mvn:org.apache.camel.k/camel-k-loader-java")
 		case v1alpha1.LanguageJavaSource:
 			util.StringSliceUniqueAdd(dependencies, "mvn:org.apache.camel.k/camel-k-loader-java")
 		}