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*
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package com.sun.xml.internal.ws.encoding;
import com.sun.istack.internal.NotNull;
import com.sun.xml.internal.stream.buffer.MutableXMLStreamBuffer;
import com.sun.xml.internal.stream.buffer.XMLStreamBuffer;
import com.sun.xml.internal.stream.buffer.XMLStreamBufferMark;
import com.sun.xml.internal.stream.buffer.stax.StreamReaderBufferCreator;
import com.sun.xml.internal.ws.api.SOAPVersion;
import com.sun.xml.internal.ws.api.message.AttachmentSet;
import com.sun.xml.internal.ws.api.message.HeaderList;
import com.sun.xml.internal.ws.api.message.Message;
import com.sun.xml.internal.ws.api.message.Packet;
import com.sun.xml.internal.ws.api.pipe.ContentType;
import com.sun.xml.internal.ws.api.streaming.XMLStreamReaderFactory;
import com.sun.xml.internal.ws.api.streaming.XMLStreamWriterFactory;
import com.sun.xml.internal.ws.message.AttachmentSetImpl;
import com.sun.xml.internal.ws.message.stream.StreamHeader;
import com.sun.xml.internal.ws.message.stream.StreamMessage;
import com.sun.xml.internal.ws.protocol.soap.VersionMismatchException;
import com.sun.xml.internal.ws.server.UnsupportedMediaException;
import com.sun.xml.internal.ws.streaming.XMLStreamReaderUtil;
import com.sun.xml.internal.ws.streaming.TidyXMLStreamReader;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.ws.WebServiceException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import java.nio.charset.Charset;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* A stream SOAP codec.
*
* @author Paul Sandoz
*/
@SuppressWarnings({"StringEquality"})
public abstract class StreamSOAPCodec implements com.sun.xml.internal.ws.api.pipe.StreamSOAPCodec, RootOnlyCodec {
private static final String SOAP_ENVELOPE = "Envelope";
private static final String SOAP_HEADER = "Header";
private static final String SOAP_BODY = "Body";
private final String SOAP_NAMESPACE_URI;
private final SOAPVersion soapVersion;
/*package*/ StreamSOAPCodec(SOAPVersion soapVersion) {
SOAP_NAMESPACE_URI = soapVersion.nsUri;
this.soapVersion = soapVersion;
}
// consider caching
// private final XMLStreamReader reader;
// consider caching
// private final MutableXMLStreamBuffer buffer;
public ContentType getStaticContentType(Packet packet) {
return getContentType(packet.soapAction);
}
public ContentType encode(Packet packet, OutputStream out) {
if (packet.getMessage() != null) {
XMLStreamWriter writer = XMLStreamWriterFactory.create(out);
try {
packet.getMessage().writeTo(writer);
writer.flush();
} catch (XMLStreamException e) {
throw new WebServiceException(e);
}
XMLStreamWriterFactory.recycle(writer);
}
return getContentType(packet.soapAction);
}
protected abstract ContentType getContentType(String soapAction);
public ContentType encode(Packet packet, WritableByteChannel buffer) {
//TODO: not yet implemented
throw new UnsupportedOperationException();
}
protected abstract List<String> getExpectedContentTypes();
public void decode(InputStream in, String contentType, Packet packet) throws IOException {
decode(in, contentType, packet, new AttachmentSetImpl());
}
/*
* Checks against expected Content-Type headers that is handled by a codec
*
* @param ct the Content-Type of the request
* @param expected expected Content-Types for a codec
* @return true if the codec supports this Content-Type
* false otherwise
*/
private static boolean isContentTypeSupported(String ct, List<String> expected) {
for(String contentType : expected) {
if (ct.indexOf(contentType) != -1) {
return true;
}
}
return false;
}
/**
* Decodes a message from {@link XMLStreamReader} that points to
* the beginning of a SOAP infoset.
*
* @param reader
* can point to the start document or the start element.
*/
public final @NotNull Message decode(@NotNull XMLStreamReader reader) {
return decode(reader,new AttachmentSetImpl());
}
/**
* Decodes a message from {@link XMLStreamReader} that points to
* the beginning of a SOAP infoset.
*
* @param reader
* can point to the start document or the start element.
* @param attachmentSet
* {@link StreamSOAPCodec} can take attachments parsed outside,
* so that this codec can be used as a part of a biggre codec
* (like MIME multipart codec.)
*/
public final Message decode(XMLStreamReader reader, @NotNull AttachmentSet attachmentSet) {
// Move to soap:Envelope and verify
if(reader.getEventType()!=XMLStreamConstants.START_ELEMENT)
XMLStreamReaderUtil.nextElementContent(reader);
XMLStreamReaderUtil.verifyReaderState(reader,XMLStreamConstants.START_ELEMENT);
if (SOAP_ENVELOPE.equals(reader.getLocalName()) && !SOAP_NAMESPACE_URI.equals(reader.getNamespaceURI())) {
throw new VersionMismatchException(soapVersion, SOAP_NAMESPACE_URI, reader.getNamespaceURI());
}
XMLStreamReaderUtil.verifyTag(reader, SOAP_NAMESPACE_URI, SOAP_ENVELOPE);
TagInfoset envelopeTag = new TagInfoset(reader);
// Collect namespaces on soap:Envelope
Map<String,String> namespaces = new HashMap<String,String>();
for(int i=0; i< reader.getNamespaceCount();i++){
namespaces.put(reader.getNamespacePrefix(i), reader.getNamespaceURI(i));
}
// Move to next element
XMLStreamReaderUtil.nextElementContent(reader);
XMLStreamReaderUtil.verifyReaderState(reader,
javax.xml.stream.XMLStreamConstants.START_ELEMENT);
HeaderList headers = null;
TagInfoset headerTag = null;
if (reader.getLocalName().equals(SOAP_HEADER)
&& reader.getNamespaceURI().equals(SOAP_NAMESPACE_URI)) {
headerTag = new TagInfoset(reader);
// Collect namespaces on soap:Header
for(int i=0; i< reader.getNamespaceCount();i++){
namespaces.put(reader.getNamespacePrefix(i), reader.getNamespaceURI(i));
}
// skip <soap:Header>
XMLStreamReaderUtil.nextElementContent(reader);
// If SOAP header blocks are present (i.e. not <soap:Header/>)
if (reader.getEventType() == XMLStreamConstants.START_ELEMENT) {
headers = new HeaderList();
try {
// Cache SOAP header blocks
cacheHeaders(reader, namespaces, headers);
} catch (XMLStreamException e) {
// TODO need to throw more meaningful exception
throw new WebServiceException(e);
}
}
// Move to soap:Body
XMLStreamReaderUtil.nextElementContent(reader);
}
// Verify that <soap:Body> is present
XMLStreamReaderUtil.verifyTag(reader, SOAP_NAMESPACE_URI, SOAP_BODY);
TagInfoset bodyTag = new TagInfoset(reader);
XMLStreamReaderUtil.nextElementContent(reader);
return new StreamMessage(envelopeTag,headerTag,attachmentSet,headers,bodyTag,reader,soapVersion);
// when there's no payload,
// it's tempting to use EmptyMessageImpl, but it doesn't presere the infoset
// of <envelope>,<header>, and <body>, so we need to stick to StreamMessage.
}
public void decode(ReadableByteChannel in, String contentType, Packet packet ) {
throw new UnsupportedOperationException();
}
public final StreamSOAPCodec copy() {
return this;
}
private XMLStreamBuffer cacheHeaders(XMLStreamReader reader,
Map<String, String> namespaces, HeaderList headers) throws XMLStreamException {
MutableXMLStreamBuffer buffer = createXMLStreamBuffer();
StreamReaderBufferCreator creator = new StreamReaderBufferCreator();
creator.setXMLStreamBuffer(buffer);
// Reader is positioned at the first header block
while(reader.getEventType() == javax.xml.stream.XMLStreamConstants.START_ELEMENT) {
Map<String,String> headerBlockNamespaces = namespaces;
// Collect namespaces on SOAP header block
if (reader.getNamespaceCount() > 0) {
headerBlockNamespaces = new HashMap<String,String>(namespaces);
for (int i = 0; i < reader.getNamespaceCount(); i++) {
headerBlockNamespaces.put(reader.getNamespacePrefix(i), reader.getNamespaceURI(i));
}
}
// Mark
XMLStreamBuffer mark = new XMLStreamBufferMark(headerBlockNamespaces, creator);
// Create Header
headers.add(createHeader(reader, mark));
// Cache the header block
// After caching Reader will be positioned at next header block or
// the end of the </soap:header>
creator.createElementFragment(reader, false);
if (reader.getEventType() != XMLStreamConstants.START_ELEMENT &&
reader.getEventType() != XMLStreamConstants.END_ELEMENT) {
XMLStreamReaderUtil.nextElementContent(reader);
}
}
return buffer;
}
protected abstract StreamHeader createHeader(XMLStreamReader reader, XMLStreamBuffer mark);
private MutableXMLStreamBuffer createXMLStreamBuffer() {
// TODO: Decode should own one MutableXMLStreamBuffer for reuse
// since it is more efficient. ISSUE: possible issue with
// lifetime of information in the buffer if accessed beyond
// the pipe line.
return new MutableXMLStreamBuffer();
}
public void decode(InputStream in, String contentType, Packet packet, AttachmentSet att ) throws IOException {
List<String> expectedContentTypes = getExpectedContentTypes();
if (contentType != null && !isContentTypeSupported(contentType,expectedContentTypes)) {
throw new UnsupportedMediaException(contentType, expectedContentTypes);
}
String charset = new ContentTypeImpl(contentType).getCharSet();
if (charset != null && !Charset.isSupported(charset)) {
throw new UnsupportedMediaException(charset);
}
XMLStreamReader reader = XMLStreamReaderFactory.create(null, in, charset, true);
reader = new TidyXMLStreamReader(reader, in);
packet.setMessage(decode(reader, att));
}
public void decode(ReadableByteChannel in, String contentType, Packet response, AttachmentSet att ) {
throw new UnsupportedOperationException();
}
/**
* Creates a new {@link StreamSOAPCodec} instance.
*/
public static StreamSOAPCodec create(SOAPVersion version) {
if(version==null)
// this decoder is for SOAP, not for XML/HTTP
throw new IllegalArgumentException();
switch(version) {
case SOAP_11:
return new StreamSOAP11Codec();
case SOAP_12:
return new StreamSOAP12Codec();
default:
throw new AssertionError();
}
}
}