Simple string with line returns as ComplexData

[nuest]

There is some strange behaviour when trying to send an execute request with a string payload as ComplexData. The input is defined in an annotated algorithm:

@ComplexDataInput(identifier = "script", title = "a script", abstrakt = "...", binding = PlainStringBinding.class)
    public void setScript(String script) {
        this.script = script;
    }

NOTE: I already had to make a small change to PlainStringBinding by adjusting the return type of the getPayload() method to String.

When I send the following element, then the WPS fails to determine the input format:

<wps:ComplexData encoding="UTF-8" mimeType="text/plain">
myUTF string
with new lines
</wps:ComplexData>

In InputHanlder the following input reference description is created, and I have not Idea wy the wcpsAll schema is used here! Setting a schema does not make sense for this input as far as I can see.

<ComplexData>
    <Default>
      <Format>
        <MimeType>text/plain</MimeType>
        <Schema>http://schemas.opengis.net/wcps/1.0/wcpsAll.xsd</Schema>
      </Format>
    </Default>
    <Supported>
      <Format>
        <MimeType>text/plain</MimeType>
        <Schema>http://schemas.opengis.net/wcps/1.0/wcpsAll.xsd</Schema>
      </Format>
    </Supported>
  </ComplexData>

Anyway, in following the code is not able to determine a suitable parser (see also #138).

When I provide no information at all, then the org.n52.wps.io.datahandler.parser.WCPSQueryParser is used and the string is correctly parsed an inserted into my algorithm:

        <wps:Input>
            <ows:Identifier>script</ows:Identifier>
            <wps:Data>
                <wps:ComplexData>
                    myString
                    anotherline
                </wps:ComplexData>
            </wps:Data>
        </wps:Input>

Setting a different mimeType, e.g. <wps:ComplexData encoding="UTF-8" mimeType="text/x-R">>, does not make a difference.

Should ComplexData not work for plain text strings as well? Ist there an XML schema for this that I don't know about?