java - Smooks: Java からの EDI の出力

Question

Smooks EDI ライターで提案されたソリューションに触発されて、次の Java コードがあります。

// Creates minimal EDI message with one field populated
EdifactV3D98AMEDPID edi = new EdifactV3D98AMEDPID();
UNBInterchangeHeader header = new UNBInterchangeHeader();
UNBInterchangeHeader.S002SenderIdentification s002SenderIdentification = new UNBInterchangeHeader.S002SenderIdentification();
s002SenderIdentification.setE0004SenderIdentification("TEST");
header.setS002SenderIdentification(s002SenderIdentification);
edi.setUNBInterchangeHeader(header);

Smooks smooks = new Smooks("edi-output-smooks-config.xml");

// Sets up access to exports specified in Smooks config
ExecutionContext executionContext = smooks.createExecutionContext();
Exports exports = Exports.getExports(smooks.getApplicationContext());
Result[] results = exports.createResults();

smooks.filterSource(executionContext, new JavaSource(edi), results);

List<Object> objects = Exports.extractResults(results, exports);
JavaResult.ResultMap map = (JavaResult.ResultMap) objects.get(0);

D98AInterchangeFactory factory = D98AInterchangeFactory.getInstance();
UNEdifactInterchange41 unEdifactInterchange = (UNEdifactInterchange41) map.get("unEdifactInterchange");

// Should output EDI message as String, but StringWriter is empty
StringWriter ediOutStream = new StringWriter();
factory.toUNEdifact(unEdifactInterchange, ediOutStream);

... 次の Smooks 設定を使用:

<?xml version="1.0" encoding="UTF-8"?>
<smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd"
                  xmlns:core="http://www.milyn.org/xsd/smooks/smooks-core-1.4.xsd">

    <!-- Imports D98A Edifact binding found in Maven dependency -->
    <import file="/org/milyn/edi/unedifact/d98a/message-bindingconfig.xml" />
    <import file="/org/milyn/smooks/edi/unedifact/model/r41/bindings/unedifact-interchange.xml" />

    <!-- Configures Result object for accessing EDI output -->
    <core:exports>
        <core:result type="org.milyn.payload.JavaResult"/>
    </core:exports>

</smooks-resource-list>

StringWriter は空の文字列を返しますが、私は Java オブジェクトを EDI 文字列として期待/期待していました。

提案や指針はありますか？