ten

When writing you occasionally make bold statements. Rarely does somebody call my bluff. But somebody did and therefore I have to show you ten significantly different hello world examples.

One
<literal type="string" uri="res:/tomgeudens/helloworld-literal">Hello World</literal>

As I've said before, we should have that one in the list of Hello World programs.

Two
<accessor>
    <id>tomgeudens:helloworld:java:accessor</id>
    <class>org.tomgeudens.helloworld.HelloWorldAccessor</class>
    <grammar>res:/tomgeudens/helloworld-java</grammar>
</accessor>

For the code itself I refer to earlier blogposts.

Three
<accessor>
    <id>tomgeudens:helloworld:groovy:accessor</id>
    <prototype>GroovyPrototype</prototype>
    <script>res:/resources/groovy/helloworld.groovy</script>
    <grammar>res:/tomgeudens/helloworld-groovy</grammar>
</accessor>

Which requires the script and the language import
<literal type="string" uri="res:/resources/groovy/helloworld.groovy">
    context.createResponseFrom("Hello World");
</literal>

<import>
    <!-- contains GroovyPrototype -->
    <uri>urn:org:netkernel:lang:groovy</uri>
</import>

Four
<mapper>
    <config>
        <endpoint>
            <grammar>res:/tomgeudens/helloworld-data</grammar>
            <request>
                <identifier>data:text/plain,Hello World</identifier>
            </request>
        </endpoint>
    </config>
    <space>
        <import>
            <!-- contains data:/ scheme -->
            <uri>urn:org:netkernel:ext:layer1</uri>
        </import>
    </space>
</mapper>

Five
<mapper>
    <config>
        <endpoint>
            <grammar>res:/tomgeudens/helloworld-file</grammar>
            <request>
                <identifier>file:/c:/temp/helloworld.txt</identifier>
            </request>
        </endpoint>
    </config>
    <space>
        <import>
            <!-- contains file:/ scheme -->
            <uri>urn:org:netkernel:ext:layer1</uri>
        </import> 
    </space>
</mapper>

Of course you need to replace the identifier with an existing file of your own.

Six
<mapper>
    <config>
        <endpoint>
            <grammar>res:/tomgeudens/helloworld-fileset</grammar>
            <request>
                <identifier>res:/resources/txt/helloworld.txt</identifier>
            </request>
        </endpoint>
    </config>
    <space>
        <fileset>
            <regex>res:/resources/txt/.*</regex>
        </fileset>
    </space>
</mapper>

Seven
<mapper>
    <config>
        <endpoint>
            <grammar>res:/tomgeudens/helloworld-freemarker</grammar>
            <request>
                <identifier>active:freemarker</identifier>
                <argument name="operator">data:text/plain,${one} ${two}</argument>
                <argument name="one">data:text/plain,Hello</argument>
                <argument name="two">data:text/plain,World</argument>
            </request>
        </endpoint>
    </config>
    <space>
        <import>
            <!-- contains active:freemarker -->
            <uri>urn:org:netkernel:lang:freemarker</uri>
        </import>
 
        <import>
            <!-- contains data:/ scheme -->
            <uri>urn:org:netkernel:ext:layer1</uri>
        </import> 
    </space>
</mapper>

Eight
<mapper>
    <config>
        <endpoint>
            <grammar>res:/tomgeudens/helloworld-http</grammar>
            <request>
                <identifier>http://localhost:8080/tomgeudens/helloworld-literal</identifier>
            </request>
        </endpoint>
    </config>
    <space>
        <import>
            <!-- contains http:/ scheme -->
            <uri>urn:org:netkernel:client:http</uri>
        </import>
    </space>
</mapper>

Which requires that the first example is exposed on the frontend fulcrum.
 
Nine
<mapper>
    <config>
        <endpoint>
            <grammar>res:/tomgeudens/helloworld-xpath</grammar>
            <request>
                <identifier>active:xpath</identifier>
                <argument name="operand">
                    <literal type="xml">
                        <document>Hello World</document>
                    </literal>
                </argument>
                <argument name="operator">
                    <literal type="string">string(/document)</literal>
                </argument>
            </request>
        </endpoint>
    </config>
    <space>
        <import>
            <!-- contains active:xpath -->
            <uri>urn:org:netkernel:xml:core</uri>
        </import>
    </space>
</mapper>

Ten
<mapper>
    <config>
        <endpoint>
            <grammar>res:/tomgeudens/helloworld-dpml</grammar>
            <request>
                <identifier>active:dpml</identifier>
                <argument name="operator">res:/resources/dpml/helloworld.dpml</argument>
            </request>
        </endpoint>
    </config>
    <space>
        <literal type="xml" uri="res:/resources/dpml/helloworld.dpml">
            <sequence>
                <literal assignment="response" type="string">Hello World</literal>
            </sequence>
        </literal>

        <import>
            <!-- contains active:dpml -->
            <uri>urn:org:netkernel:lang:dpml</uri>
        </import>
    </space>
</mapper>


And there you go, ten resource oriented hello world examples. There are many more possibilities but I think the above show both that there is a lot available and at the same time show that the patterns are always the same. Enjoy.