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This library implements the ebXML Message Specification version 2.0, which defines a communications-protocol neutral method for exchanging electronic business messages through the exchange of XML based messages.
/**
* Copyright 2011 Clockwork
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package nl.clockwork.ebms;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
import java.util.List;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.commons.lang3.StringUtils;
import org.apache.james.mime4j.MimeException;
import org.apache.james.mime4j.parser.MimeStreamParser;
import org.apache.james.mime4j.stream.MimeConfig;
import org.xml.sax.SAXException;
import lombok.AccessLevel;
import lombok.AllArgsConstructor;
import lombok.NonNull;
import lombok.val;
import lombok.experimental.FieldDefaults;
import nl.clockwork.ebms.model.EbMSAttachment;
import nl.clockwork.ebms.model.EbMSDocument;
import nl.clockwork.ebms.util.DOMUtils;
@FieldDefaults(level = AccessLevel.PRIVATE, makeFinal = true)
@AllArgsConstructor
public class EbMSMessageReader
{
String contentId;
@NonNull
String contentType;
public EbMSDocument read(InputStream in) throws MimeException, IOException, ParserConfigurationException, SAXException
{
if (contentType.startsWith("multipart"))
{
val handler = new EbMSContentHandler();
parseEbMSMessage(handler,contentType,in);
val attachments = handler.getAttachments();
return getEbMSMessage(attachments);
}
else
return getEbMSMessage(in);
}
public EbMSDocument readResponse(String message) throws IOException, ParserConfigurationException, SAXException
{
return StringUtils.isNotBlank(message) ? EbMSDocument.builder()
.contentId(contentId)
.message(DOMUtils.read(message))
.attachments(Collections.emptyList())
.build()
: null;
}
private void parseEbMSMessage(EbMSContentHandler handler, String contentType, InputStream in) throws MimeException, IOException
{
val mimeConfig = MimeConfig.custom().setHeadlessParsing(contentType).build();
val parser = new MimeStreamParser(mimeConfig);
parser.setContentHandler(handler);
parser.parse(in);
}
private EbMSDocument getEbMSMessage(InputStream in) throws ParserConfigurationException, SAXException, IOException
{
return EbMSDocument.builder()
.contentId(contentId)
.message(DOMUtils.read(in))
.attachments(Collections.emptyList())
.build();
}
private EbMSDocument getEbMSMessage(List attachments) throws ParserConfigurationException, SAXException, IOException
{
if (attachments.size() > 0)
{
val message = attachments.remove(0);
return EbMSDocument.builder()
.contentId(contentId)
.message(DOMUtils.read((message.getInputStream())))
.attachments(attachments)
.build();
}
return null;
}
}
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