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authorrfeng <rfeng@13f79535-47bb-0310-9956-ffa450edef68>2009-08-04 03:01:18 +0000
committerrfeng <rfeng@13f79535-47bb-0310-9956-ffa450edef68>2009-08-04 03:01:18 +0000
commit9d018863477c5d6056d18dbbcc0c4d5d5be9cfd2 (patch)
treefc9a9cb7a440d7af661aa9db5a64dffed5165c7f /java/sca
parent0123300c3d1f972c545ebf2ce6b551a4f3519753 (diff)
Use the xml string to keep the unknown elements (reduce complexity and memory usage over an in memory stream reader)
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@800664 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'java/sca')
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java2
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyNamespaceContext.java114
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyXMLStreamReader.java110
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java12
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java2
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java124
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLDocumentStreamReader.java482
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLEventsStreamReader.java444
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLFragmentStreamReader.java53
-rw-r--r--java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLStreamSerializer.java287
-rw-r--r--java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor2
11 files changed, 329 insertions, 1303 deletions
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java
index 35793899c0..c21c4c6a44 100644
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java
+++ b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java
@@ -50,7 +50,7 @@ import org.apache.tuscany.sca.monitor.Problem.Severity;
public class ExtensibleStAXArtifactProcessor implements StAXArtifactProcessor<Object> {
private static final Logger logger = Logger.getLogger(ExtensibleStAXArtifactProcessor.class.getName());
- private static final QName ANY_ELEMENT = new QName(Constants.XMLSCHEMA_NS, "anyElement");
+ private static final QName ANY_ELEMENT = new QName(Constants.XMLSCHEMA_NS, "any");
private XMLInputFactory inputFactory;
private XMLOutputFactory outputFactory;
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyNamespaceContext.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyNamespaceContext.java
deleted file mode 100644
index 2ddba7527e..0000000000
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyNamespaceContext.java
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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 org.apache.tuscany.sca.contribution.processor;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Stack;
-
-import javax.xml.namespace.NamespaceContext;
-
-/**
- * Tuscany specialized class to handle NamespaceContext
- *
- */
-public class TuscanyNamespaceContext implements NamespaceContext {
-
- private Stack<List<String>[]> context = null;
-
- public TuscanyNamespaceContext(Stack<List<String>[]> context) {
- this.context = context;
- }
-
- public String getNamespaceURI(String prefix) {
- if (prefix == null) {
- throw new IllegalArgumentException();
- }
- return (String)getResult("getNSUri", prefix);
- }
-
- public String getPrefix(String namespaceURI) {
- if (namespaceURI == null) {
- throw new IllegalArgumentException();
- }
- return (String)getResult("getPrefix", namespaceURI);
- }
-
- @SuppressWarnings("unchecked")
- public Iterator<String> getPrefixes(String namespaceURI) {
- if (namespaceURI == null) {
- throw new IllegalArgumentException();
- }
-
- Iterator<String> iterator = (Iterator<String>)getResult("getPrefixes", namespaceURI);
- return iterator;
- }
-
- /*
- * Generic method to Iterate through the Stack and return required result(s)
- */
- private Object getResult(String operation, String arg) {
-
- List<String>[] contextList = null;
- Iterator<String> prefItr = null;
- Iterator<String> uriItr = null;
-
- List<String> list = new ArrayList<String>();
-
- String toCompare = null;
-
- String tempPrefix = null;
- String tempUri = null;
-
- for (int i = context.size() - 1; i >= 0; i--) {
- contextList = context.get(i);
- prefItr = contextList[0].iterator();
- uriItr = contextList[1].iterator();
- while (uriItr.hasNext()) {
- tempPrefix = prefItr.next();
- tempUri = uriItr.next();
- if (operation.equalsIgnoreCase("getNSUri")) {
- toCompare = tempPrefix;
- } else if (operation.equalsIgnoreCase("getPrefix")) {
- toCompare = tempUri;
- } else if (operation.equalsIgnoreCase("getPrefixes")) {
- toCompare = tempUri;
- }
- if (toCompare != null && arg.equalsIgnoreCase(toCompare)) {
- if (operation.equalsIgnoreCase("getNSUri")) {
- return tempUri;
- } else if (operation.equalsIgnoreCase("getPrefix")) {
- return tempPrefix;
- } else if (operation.equalsIgnoreCase("getPrefixes")) {
- list.add(tempPrefix);
- }
-
- }
- }
- }
-
- if (operation.equalsIgnoreCase("getPrefixes")) {
- return Collections.unmodifiableList(list).iterator();
- }
-
- return null;
- }
-} \ No newline at end of file
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyXMLStreamReader.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyXMLStreamReader.java
deleted file mode 100644
index 3352e76a0d..0000000000
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/TuscanyXMLStreamReader.java
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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 org.apache.tuscany.sca.contribution.processor;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Stack;
-
-import javax.xml.XMLConstants;
-import javax.xml.namespace.NamespaceContext;
-import javax.xml.stream.XMLStreamException;
-import javax.xml.stream.XMLStreamReader;
-import javax.xml.stream.util.StreamReaderDelegate;
-
-/*
- * Custom implementaion of the XMLStreamReader to keep track of the namespace context for each element
- */
-public class TuscanyXMLStreamReader extends StreamReaderDelegate implements XMLStreamReader {
-
- Stack<List<String>[]> context = new Stack<List<String>[]>();
-
- List<String>[] contextList;
- List<String> prefixList;
- List<String> uriList;
-
- public TuscanyXMLStreamReader(XMLStreamReader reader) {
- super(reader);
- }
-
- public void pushContext() throws XMLStreamException {
- contextList = new List[2];
- prefixList = new ArrayList<String>();
- uriList = new ArrayList<String>();
- int namespaceCount = this.getNamespaceCount();
- for (int i = 0; i < namespaceCount; i++) {
- prefixList.add(checkString(this.getNamespacePrefix(i)));
- uriList.add(this.getNamespaceURI(i));
- }
- contextList[0] = prefixList;
- contextList[1] = uriList;
- context.push(contextList);
- }
-
- private String checkString(String namespacePrefix) {
- if (namespacePrefix == null) {
- return XMLConstants.DEFAULT_NS_PREFIX;
- } else {
- return namespacePrefix;
- }
- }
-
- public void popContext() throws XMLStreamException {
- context.pop();
- }
-
- /*
- * Overriding the next() method to perform PUSH and POP operations
- * for the NamespaceContext for the current element
- */
-
- @Override
- public int next() throws XMLStreamException {
- // POP the context if the element ends
- if (this.getEventType() == END_ELEMENT) {
- popContext();
- }
-
- //get the next event
- int nextEvent = super.next();
- //PUSH the events info onto the Stack
- if (nextEvent == START_ELEMENT) {
- pushContext();
- }
- return nextEvent;
- }
-
- @Override
- public int nextTag() throws XMLStreamException {
- int event = super.nextTag();
- if (event == START_ELEMENT) {
- pushContext();
- }
- if (event == END_ELEMENT) {
- popContext();
- }
- return event;
- }
-
- @Override
- public NamespaceContext getNamespaceContext() {
- return new TuscanyNamespaceContext((Stack<List<String>[]>)context.clone());
- }
-} \ No newline at end of file
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java
index ac7b644703..7882142eb4 100644
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java
+++ b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ValidatingXMLStreamReader.java
@@ -27,6 +27,7 @@ import javax.xml.stream.Location;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.util.StreamReaderDelegate;
import javax.xml.validation.Schema;
import javax.xml.validation.ValidatorHandler;
@@ -46,11 +47,10 @@ import org.xml.sax.helpers.AttributesImpl;
*
* @version $Rev$ $Date$
*/
-class ValidatingXMLStreamReader extends TuscanyXMLStreamReader implements XMLStreamReader {
+class ValidatingXMLStreamReader extends StreamReaderDelegate implements XMLStreamReader {
private static final Logger logger = Logger.getLogger(ValidatingXMLStreamReader.class.getName());
- private int level;
private ValidatorHandler handler;
private final Monitor monitor;
@@ -158,11 +158,9 @@ class ValidatingXMLStreamReader extends TuscanyXMLStreamReader implements XMLStr
try {
switch (event) {
case XMLStreamConstants.START_DOCUMENT:
- level++;
handler.startDocument();
break;
case XMLStreamConstants.START_ELEMENT:
- level++;
handleStartElement();
break;
case XMLStreamConstants.PROCESSING_INSTRUCTION:
@@ -176,7 +174,6 @@ class ValidatingXMLStreamReader extends TuscanyXMLStreamReader implements XMLStr
break;
case XMLStreamConstants.END_ELEMENT:
handleEndElement();
- level--;
break;
case XMLStreamConstants.END_DOCUMENT:
handler.endDocument();
@@ -201,13 +198,10 @@ class ValidatingXMLStreamReader extends TuscanyXMLStreamReader implements XMLStr
try {
switch (event) {
case XMLStreamConstants.START_DOCUMENT:
- level++;
handler.startDocument();
break;
case XMLStreamConstants.START_ELEMENT:
- level++;
handleStartElement();
- pushContext();
return event;
case XMLStreamConstants.PROCESSING_INSTRUCTION:
handler.processingInstruction(super.getPITarget(), super.getPIData());
@@ -220,8 +214,6 @@ class ValidatingXMLStreamReader extends TuscanyXMLStreamReader implements XMLStr
break;
case XMLStreamConstants.END_ELEMENT:
handleEndElement();
- level--;
- popContext();
return event;
case XMLStreamConstants.END_DOCUMENT:
handler.endDocument();
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java
index aad7747522..4091323f05 100644
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java
+++ b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyAttributeProcessor.java
@@ -74,7 +74,7 @@ public class AnyAttributeProcessor extends BaseStAXArtifactProcessor implements
// are just the string representation fo the attribute
}
- public void resolve(Extension arg0, ModelResolver arg1) throws ContributionResolveException {
+ public void resolve(Extension model, ModelResolver modelResolver) throws ContributionResolveException {
}
}
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java
index 68c46a2301..02618c489b 100644
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java
+++ b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/AnyElementProcessor.java
@@ -18,25 +18,18 @@
*/
package org.apache.tuscany.sca.contribution.processor.xml;
-import static javax.xml.stream.XMLStreamConstants.CDATA;
-import static javax.xml.stream.XMLStreamConstants.CHARACTERS;
-import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
-import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+import java.io.StringReader;
+import java.io.StringWriter;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
-import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
-import javax.xml.stream.events.XMLEvent;
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Extension;
import org.apache.tuscany.sca.contribution.Constants;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
@@ -45,16 +38,21 @@ import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.monitor.Monitor;
-public class AnyElementProcessor implements StAXArtifactProcessor<Object> {
- private static final QName ANY_ELEMENT = new QName(Constants.XMLSCHEMA_NS, "anyElement");
+public class AnyElementProcessor implements StAXArtifactProcessor<Extension> {
+ private static final QName ANY_ELEMENT = new QName(Constants.XMLSCHEMA_NS, "any");
+ private AssemblyFactory assemblyFactory;
private XMLInputFactory xmlInputFactory;
+ private XMLOutputFactory xmlOutputFactory;
+
@SuppressWarnings("unused")
private Monitor monitor;
public AnyElementProcessor(FactoryExtensionPoint modelFactories, Monitor monitor) {
+ assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
xmlInputFactory = modelFactories.getFactory(XMLInputFactory.class);
+ xmlOutputFactory = modelFactories.getFactory(XMLOutputFactory.class);
this.monitor = monitor;
}
@@ -62,8 +60,8 @@ public class AnyElementProcessor implements StAXArtifactProcessor<Object> {
return ANY_ELEMENT;
}
- public Class<Object> getModelType() {
- return Object.class;
+ public Class<Extension> getModelType() {
+ return Extension.class;
}
/**
@@ -74,43 +72,19 @@ public class AnyElementProcessor implements StAXArtifactProcessor<Object> {
* @return
* @throws XMLStreamException
*/
- @SuppressWarnings("unchecked")
- public Object read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
-
- // Custom variables
- String currentElement = null;
- List eventsList = new ArrayList();
-
- Map<String, NamespaceContext> eventContext = new HashMap<String, NamespaceContext>();
-
- try {
- // Cast the block of unknown elements into document
- XMLDocumentStreamReader docReader = new XMLDocumentStreamReader(reader);
-
- XMLEventReader xmlEventReader = xmlInputFactory.createXMLEventReader(docReader);
-
- while (xmlEventReader.hasNext()) {
- XMLEvent event = xmlEventReader.nextEvent();
-
- // Populate the eventContext map with the current element's name
- // and corresponding NamesapceContext
- if (currentElement != null && !(eventContext.containsKey(currentElement))) {
- eventContext.put(currentElement, reader.getNamespaceContext());
- }
-
- // Populate the list with the XMLEvents
- eventsList.add(event);
- if (event.isStartElement()) {
- currentElement = reader.getName().getLocalPart();
- }
- if (event.isEndDocument()) {
- return new XMLEventsStreamReader(eventsList, eventContext);
- }
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- return null;
+ public Extension read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException {
+ QName name = reader.getName();
+ XMLStreamSerializer serializer = new XMLStreamSerializer();
+ StringWriter sw = new StringWriter();
+ XMLStreamWriter writer = xmlOutputFactory.createXMLStreamWriter(sw);
+ serializer.serialize(reader, writer);
+ writer.flush();
+
+ Extension ext = assemblyFactory.createExtension();
+ ext.setQName(name);
+ ext.setValue(sw.toString());
+
+ return ext;
}
/**
@@ -119,43 +93,19 @@ public class AnyElementProcessor implements StAXArtifactProcessor<Object> {
* @param model
* @param writer
*/
- public void write(Object model, XMLStreamWriter writer) throws XMLStreamException {
- if (!(model instanceof XMLStreamReader)) {
+ public void write(Extension model, XMLStreamWriter writer) throws XMLStreamException {
+ Object value = model.getValue();
+ if (!(value instanceof String)) {
return;
}
- XMLStreamReader reader = (XMLStreamReader)model;
-
- int event = reader.getEventType();
- while (reader.hasNext()) {
- switch (event) {
- case START_ELEMENT:
-
- writer.writeStartElement(reader.getPrefix(), reader.getLocalName(), reader.getNamespaceURI());
- for (int i = 1; i <= reader.getAttributeCount(); i++) {
- writer.writeAttribute(reader.getAttributePrefix(i), reader.getAttributeNamespace(i), reader
- .getAttributeLocalName(i), reader.getAttributeValue(i));
- }
- break;
-
- case CHARACTERS:
- writer.writeCharacters(reader.getText());
- break;
-
- case CDATA:
- writer.writeCData(reader.getText());
- break;
-
- case END_ELEMENT:
- writer.writeEndElement();
- break;
- }
- if (reader.hasNext()) {
- event = reader.next();
- }
- }
+ String xml = (String) value;
+ XMLStreamReader reader = xmlInputFactory.createXMLStreamReader(new StringReader(xml));
+ // Position the reader to the root element
+ reader.nextTag();
+ XMLStreamSerializer serializer = new XMLStreamSerializer();
+ serializer.serialize(reader, writer);
}
- public void resolve(Object model, ModelResolver resolver) throws ContributionResolveException {
-
+ public void resolve(Extension model, ModelResolver resolver) throws ContributionResolveException {
}
}
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLDocumentStreamReader.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLDocumentStreamReader.java
deleted file mode 100644
index 634563ebd7..0000000000
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLDocumentStreamReader.java
+++ /dev/null
@@ -1,482 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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 org.apache.tuscany.sca.contribution.processor.xml;
-
-import java.util.NoSuchElementException;
-
-import javax.xml.namespace.NamespaceContext;
-import javax.xml.namespace.QName;
-import javax.xml.stream.Location;
-import javax.xml.stream.XMLStreamException;
-import javax.xml.stream.XMLStreamReader;
-
-/**
- * This class is derived from Apache Axis2 class
- * org.apache.axis2.util.StreamWrapper</a>. It's used wrap a XMLStreamReader to
- * create a XMLStreamReader representing a document and it will produce
- * START_DOCUMENT, END_DOCUMENT events.
- *
- * @version $Rev$ $Date$
- */
-public class XMLDocumentStreamReader implements XMLStreamReader {
- private static final int STATE_COMPLETE_AT_NEXT = 2; // The wrapper
- // will produce
- // END_DOCUMENT
-
- private static final int STATE_COMPLETED = 3; // Done
-
- private static final int STATE_INIT = 0; // The wrapper will produce
- // START_DOCUMENT
-
- private static final int STATE_SWITCHED = 1; // The real reader will
- // produce events
-
- private XMLStreamReader realReader;
- private boolean fragment;
- private int level = 0;
-
- private int state = STATE_INIT;
-
- public XMLDocumentStreamReader(XMLStreamReader realReader) {
- if (realReader == null) {
- throw new UnsupportedOperationException("Reader cannot be null");
- }
-
- this.realReader = realReader;
-
- if (realReader instanceof XMLFragmentStreamReader) {
- ((XMLFragmentStreamReader)realReader).init();
- }
-
- // If the real reader is positioned at START_DOCUMENT, always use
- // the real reader
- if (realReader.getEventType() == START_DOCUMENT) {
- fragment = false;
- state = STATE_SWITCHED;
- }
- }
-
- public void close() throws XMLStreamException {
- realReader.close();
- }
-
- public int getAttributeCount() {
- if (isDelegating()) {
- return realReader.getAttributeCount();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getAttributeLocalName(int i) {
- if (isDelegating()) {
- return realReader.getAttributeLocalName(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public QName getAttributeName(int i) {
- if (isDelegating()) {
- return realReader.getAttributeName(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getAttributeNamespace(int i) {
- if (isDelegating()) {
- return realReader.getAttributeNamespace(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getAttributePrefix(int i) {
- if (isDelegating()) {
- return realReader.getAttributePrefix(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getAttributeType(int i) {
- if (isDelegating()) {
- return realReader.getAttributeType(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getAttributeValue(int i) {
- if (isDelegating()) {
- return realReader.getAttributeValue(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getAttributeValue(String s, String s1) {
- if (isDelegating()) {
- return realReader.getAttributeValue(s, s1);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getCharacterEncodingScheme() {
- return realReader.getCharacterEncodingScheme();
- }
-
- public String getElementText() throws XMLStreamException {
- if (isDelegating()) {
- return realReader.getElementText();
- } else {
- throw new XMLStreamException();
- }
- }
-
- public String getEncoding() {
- return realReader.getEncoding();
- }
-
- public int getEventType() {
- int event = -1;
- switch (state) {
- case STATE_SWITCHED:
- case STATE_COMPLETE_AT_NEXT:
- event = realReader.getEventType();
- break;
- case STATE_INIT:
- event = START_DOCUMENT;
- break;
- case STATE_COMPLETED:
- event = END_DOCUMENT;
- break;
- }
- return event;
- }
-
- public String getLocalName() {
- if (isDelegating()) {
- return realReader.getLocalName();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public Location getLocation() {
- if (isDelegating()) {
- return realReader.getLocation();
- } else {
- return null;
- }
- }
-
- public QName getName() {
- if (isDelegating()) {
- return realReader.getName();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public NamespaceContext getNamespaceContext() {
- return realReader.getNamespaceContext();
- }
-
- public int getNamespaceCount() {
- if (isDelegating()) {
- return realReader.getNamespaceCount();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getNamespacePrefix(int i) {
- if (isDelegating()) {
- return realReader.getNamespacePrefix(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getNamespaceURI() {
- if (isDelegating()) {
- return realReader.getNamespaceURI();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getNamespaceURI(int i) {
- if (isDelegating()) {
- return realReader.getNamespaceURI(i);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getNamespaceURI(String s) {
- if (isDelegating()) {
- return realReader.getNamespaceURI(s);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getPIData() {
- if (isDelegating()) {
- return realReader.getPIData();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getPITarget() {
- if (isDelegating()) {
- return realReader.getPITarget();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getPrefix() {
- if (isDelegating()) {
- return realReader.getPrefix();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public Object getProperty(String s) throws IllegalArgumentException {
- if (isDelegating()) {
- return realReader.getProperty(s);
- } else {
- throw new IllegalArgumentException();
- }
- }
-
- public String getText() {
- if (isDelegating()) {
- return realReader.getText();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public char[] getTextCharacters() {
- if (isDelegating()) {
- return realReader.getTextCharacters();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public int getTextCharacters(int i, char[] chars, int i1, int i2) throws XMLStreamException {
- if (isDelegating()) {
- return realReader.getTextCharacters(i, chars, i1, i2);
- } else {
- throw new IllegalStateException();
- }
- }
-
- public int getTextLength() {
- if (isDelegating()) {
- return realReader.getTextLength();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public int getTextStart() {
- if (isDelegating()) {
- return realReader.getTextStart();
- } else {
- throw new IllegalStateException();
- }
- }
-
- public String getVersion() {
- if (isDelegating()) {
- return realReader.getVersion();
- } else {
- return null;
- }
- }
-
- public boolean hasName() {
- if (isDelegating()) {
- return realReader.hasName();
- } else {
- return false;
- }
- }
-
- public boolean hasNext() throws XMLStreamException {
- if (state == STATE_COMPLETE_AT_NEXT) {
- return true;
- } else if (state == STATE_COMPLETED) {
- return false;
- } else if (state == STATE_SWITCHED) {
- return realReader.hasNext();
- } else {
- return true;
- }
- }
-
- public boolean hasText() {
- if (isDelegating()) {
- return realReader.hasText();
- } else {
- return false;
- }
- }
-
- public boolean isAttributeSpecified(int i) {
- if (isDelegating()) {
- return realReader.isAttributeSpecified(i);
- } else {
- return false;
- }
- }
-
- public boolean isCharacters() {
- if (isDelegating()) {
- return realReader.isCharacters();
- } else {
- return false;
- }
- }
-
- private boolean isDelegating() {
- return state == STATE_SWITCHED || state == STATE_COMPLETE_AT_NEXT;
- }
-
- public boolean isEndElement() {
- if (isDelegating()) {
- return realReader.isEndElement();
- } else {
- return false;
- }
- }
-
- public boolean isStandalone() {
- if (isDelegating()) {
- return realReader.isStandalone();
- } else {
- return false;
- }
- }
-
- public boolean isStartElement() {
- if (isDelegating()) {
- return realReader.isStartElement();
- } else {
- return false;
- }
- }
-
- public boolean isWhiteSpace() {
- if (isDelegating()) {
- return realReader.isWhiteSpace();
- } else {
- return false;
- }
- }
-
- public int next() throws XMLStreamException {
- int returnEvent;
-
- switch (state) {
- case STATE_SWITCHED:
- returnEvent = realReader.next();
- if (returnEvent == END_DOCUMENT) {
- state = STATE_COMPLETED;
- } else if (!realReader.hasNext()) {
- state = STATE_COMPLETE_AT_NEXT;
- }
- if (fragment && returnEvent == END_ELEMENT) {
- level--;
- if (level == -1) {
- // We are now at the end of the top-level element in the fragment
- state = STATE_COMPLETE_AT_NEXT;
- }
- }
- if (fragment && returnEvent == START_ELEMENT) {
- level++;
- }
- break;
- case STATE_INIT:
- state = STATE_SWITCHED;
- returnEvent = realReader.getEventType();
- if (returnEvent == START_ELEMENT) {
- // The real reader is positioned at the top-level element in the fragment
- level = 0;
- fragment = true;
- }
- break;
- case STATE_COMPLETE_AT_NEXT:
- state = STATE_COMPLETED;
- returnEvent = END_DOCUMENT;
- break;
- case STATE_COMPLETED:
- // oops - no way we can go beyond this
- throw new NoSuchElementException("End of stream has reached.");
- default:
- throw new UnsupportedOperationException();
- }
-
- return returnEvent;
- }
-
- public int nextTag() throws XMLStreamException {
- if (isDelegating()) {
- int returnEvent = realReader.nextTag();
- if (fragment && returnEvent == END_ELEMENT) {
- level--;
- if (level == 0) {
- // We are now at the end of the top-level element in the fragment
- state = STATE_COMPLETE_AT_NEXT;
- }
- }
- if (fragment && returnEvent == START_ELEMENT) {
- level++;
- }
- return returnEvent;
- } else {
- throw new XMLStreamException();
- }
- }
-
- public void require(int i, String s, String s1) throws XMLStreamException {
- if (isDelegating()) {
- realReader.require(i, s, s1);
- }
- }
-
- public boolean standaloneSet() {
- if (isDelegating()) {
- return realReader.standaloneSet();
- } else {
- return false;
- }
- }
-}
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLEventsStreamReader.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLEventsStreamReader.java
deleted file mode 100644
index eecdee5ba6..0000000000
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLEventsStreamReader.java
+++ /dev/null
@@ -1,444 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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 org.apache.tuscany.sca.contribution.processor.xml;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-import javax.xml.namespace.NamespaceContext;
-import javax.xml.namespace.QName;
-import javax.xml.stream.Location;
-import javax.xml.stream.XMLStreamException;
-import javax.xml.stream.XMLStreamReader;
-import javax.xml.stream.events.Attribute;
-import javax.xml.stream.events.Namespace;
-import javax.xml.stream.events.ProcessingInstruction;
-import javax.xml.stream.events.XMLEvent;
-
-
-public class XMLEventsStreamReader implements XMLStreamReader {
-
- @SuppressWarnings("unused")
- private ArrayList<XMLEvent> events = null;
- private HashMap<String, NamespaceContext> eventContext = null;
-
- private int state;
- private java.util.Iterator<XMLEvent> iterator;
- private XMLEvent current;
-
- public XMLEventsStreamReader(List<XMLEvent> events,Map<String, NamespaceContext> map) {
- this.events = (ArrayList<XMLEvent>) events;
- this.eventContext = (HashMap<String, NamespaceContext>) map;
- this.iterator = events.iterator();
- this.current = iterator.next();
- this.state = current.getEventType();
- }
-
- public void close() throws XMLStreamException {
- this.events = null;
- this.eventContext = null;
- this.iterator = null;
- this.current = null;
- }
-
- private void checkElementState() {
- if (getEventType() != START_ELEMENT && getEventType() != END_ELEMENT) {
- throw new IllegalStateException();
- }
- }
-
- @SuppressWarnings("unchecked")
- public int getAttributeCount() {
- checkElementState();
- int count = 0;
- Iterator<Attribute> iterator = current.asStartElement().getAttributes();
- while (iterator.hasNext()) {
- count++;
- iterator.next();
- }
- return count;
- }
-
- /*
- * Custom method to get attribute from the specified index
- */
- @SuppressWarnings("unchecked")
- private Attribute getAttribute(int index) {
- checkElementState();
- int count = 0;
- Attribute attribute = null;
- Iterator<Attribute> iterator = current.asStartElement().getAttributes();
- while (iterator.hasNext()) {
- count++;
- if (count == index) {
- attribute = iterator.next();
- } else {
- iterator.next();
- }
- }
- return attribute;
- }
-
-
- public String getAttributeLocalName(int index) {
- checkElementState();
- return getAttribute(index).getName().getLocalPart();
- }
-
- public QName getAttributeName(int index) {
- checkElementState();
- return getAttribute(index).getName();
- }
-
- public String getAttributeNamespace(int index) {
- checkElementState();
- return getAttributeName(index).getNamespaceURI();
- }
-
- public String getAttributePrefix(int index) {
- checkElementState();
- return getAttributeName(index).getPrefix();
- }
-
- public String getAttributeType(int index) {
- checkElementState();
- return getAttribute(index).getDTDType();
- }
-
- public String getAttributeValue(int index) {
- checkElementState();
- return getAttribute(index).getValue();
- }
-
- @SuppressWarnings("unchecked")
- public String getAttributeValue(String namespaceURI, String localName) {
- checkElementState();
- Iterator<Attribute> iterator = current.asStartElement().getAttributes();
- Attribute attribute;
- while (iterator.hasNext()) {
- attribute = iterator.next();
- if (attribute.getName().getNamespaceURI().equalsIgnoreCase(
- namespaceURI)
- && attribute.getName().getLocalPart().equalsIgnoreCase(
- localName)) {
- return attribute.getValue();
- }
- }
- return null;
-
- }
-
- public String getCharacterEncodingScheme() {
- return "UTF-8";
- }
-
- public String getElementText() throws XMLStreamException {
- checkElementState();
- int eventType = getEventType();
- String elementText = null;
-
- if (eventType == START_ELEMENT) {
- elementText = current.asStartElement().getName().getLocalPart();
- } else if (eventType == END_ELEMENT) {
- elementText = current.asEndElement().getName().getLocalPart();
- }
- return elementText;
- }
-
- public String getEncoding() {
- return "UTF-8";
- }
-
- public int getEventType() {
- return state;
- }
-
- public String getLocalName() {
- checkElementState();
- switch (current.getEventType()) {
- case START_ELEMENT:
- return current.asStartElement().getName().getLocalPart();
- case END_ELEMENT:
- return current.asEndElement().getName().getLocalPart();
- }
- return null;
- }
-
- public Location getLocation() {
- return current.getLocation();
- }
-
- public QName getName() {
- checkElementState();
- switch (current.getEventType()) {
- case START_ELEMENT:
- return current.asStartElement().getName();
- case END_ELEMENT:
- return current.asEndElement().getName();
- }
- return null;
- }
-
- public NamespaceContext getNamespaceContext() {
- checkElementState();
- //return new TuscanyNamespaceContext(eventContext.get(getLocalName()));
- return eventContext.get(getLocalName());
- }
-
- @SuppressWarnings("unchecked")
- public int getNamespaceCount() {
- int count = 0;
- Iterator<Namespace> itr = current.asStartElement().getNamespaces();
- while (itr.hasNext()) {
- count++;
- itr.next();
- }
- return count;
- }
-
- @SuppressWarnings("unchecked")
- public String getNamespacePrefix(int index) {
- Iterator<Namespace> itr = current.asStartElement().getNamespaces();
- int level = 0;
- Namespace ns = null;
- while (itr.hasNext()) {
- ns = itr.next();
- if (level == index) {
- return ns.getPrefix();
- }
- level++;
- }
- return null;
- }
-
- public String getNamespaceURI() {
- checkElementState();
- switch (current.getEventType()) {
- case START_ELEMENT:
- return current.asStartElement().getName().getNamespaceURI();
- case END_ELEMENT:
- return current.asEndElement().getName().getNamespaceURI();
- }
- return null;
- }
-
- public String getNamespaceURI(String prefix) {
- return getNamespaceContext().getNamespaceURI(prefix);
- }
-
- @SuppressWarnings("unchecked")
- public String getNamespaceURI(int index) {
- Iterator<Namespace> itr = current.asStartElement().getNamespaces();
- int level = 0;
- Namespace ns = null;
- while (itr.hasNext()) {
- ns = itr.next();
- if (level == index) {
- return ns.getNamespaceURI();
- }
- level++;
- }
- return null;
- }
-
- public String getPIData() {
- if (current.isProcessingInstruction()) {
- ProcessingInstruction pi = (ProcessingInstruction) current;
- return pi.getData();
- } else {
- throw new IllegalStateException(current.toString());
- }
- }
-
- public String getPITarget() {
- if (current.isProcessingInstruction()) {
- ProcessingInstruction pi = (ProcessingInstruction) current;
- return pi.getTarget();
- } else {
- throw new IllegalStateException(current.toString());
- }
- }
-
- public String getPrefix() {
- checkElementState();
- if (current.isStartElement()) {
- return current.asStartElement().getName().getPrefix();
- }
- return null;
- }
-
- /*
- * FIXME: Implementation pending...
- *
- * @see (non-Javadoc)
- * javax.xml.stream.util.StreamReaderDelegate#getProperty(java.lang.String)
- */
- public Object getProperty(String name) throws IllegalArgumentException {
- // TODO Auto-generated method stub
-
- return null;
- }
-
- public String getText() {
- if (current.isCharacters()) {
- return current.asCharacters().getData();
- } else {
- throw new IllegalStateException(current.toString());
- }
- }
-
- public char[] getTextCharacters() {
- if (current.isCharacters()) {
- return current.asCharacters().getData().toCharArray();
- } else {
- throw new IllegalStateException(current.toString());
- }
- }
-
- /*
- * FIXME: Implementation pending... (non-Javadoc)
- *
- * @see javax.xml.stream.util.StreamReaderDelegate#getTextCharacters(int,
- * char[], int, int)
- */
- public int getTextCharacters(int sourceStart, char[] target,
- int targetStart, int length) throws XMLStreamException {
- // TODO Auto-generated method stub
- return 0;
- }
-
- /*
- * FIXME:Implementaion can be improved (non-Javadoc)
- *
- * @see javax.xml.stream.util.StreamReaderDelegate#getTextLength()
- */
- public int getTextLength() {
- if (current.isCharacters()) {
- return current.asCharacters().getData().length();
- } else {
- throw new IllegalStateException(current.toString());
- }
- }
-
- /*
- * FIXME: Implementation pending... (non-Javadoc)
- *
- * @see javax.xml.stream.util.StreamReaderDelegate#getTextStart()
- */
- public int getTextStart() {
- // TODO Auto-generated method stub
- return 0;
- }
-
- /*
- * FIXME: Implementation pending... (non-Javadoc)
- *
- * @see javax.xml.stream.util.StreamReaderDelegate#getTextStart()
- */
- public String getVersion() {
- // TODO Auto-generated method stub
-
- return null;
- }
-
- public boolean hasName() {
- return false;
- }
-
- public boolean hasNext() throws XMLStreamException {
- return iterator.hasNext() || state != END_DOCUMENT;
-
- }
-
- public boolean hasText() {
- // TODO Auto-generated method stub
- return false;
- }
-
- /*
- * FIXME: Implementation pending... (non-Javadoc)
- *
- * @see javax.xml.stream.util.StreamReaderDelegate#getTextStart()
- */
- public boolean isAttributeSpecified(int index) {
- // TODO Auto-generated method stub
- return false;
- }
-
- public boolean isCharacters() {
- return current.isCharacters();
- }
-
- public boolean isEndElement() {
- return current.isEndElement();
- }
-
- public boolean isStandalone() {
- // TODO Auto-generated method stub
- return false;
- }
-
- public boolean isStartElement() {
- return current.isStartElement();
- }
-
- public boolean isWhiteSpace() {
- // TODO Auto-generated method stub
- return false;
- }
-
- public int next() throws XMLStreamException {
- if (!hasNext()) {
- throw new IllegalStateException("No more events");
- }
- if (!iterator.hasNext()) {
- state = END_DOCUMENT;
- current = null;
- return state;
- }
- current = iterator.next();
- state = current.getEventType();
- return state;
- }
-
- public int nextTag() throws XMLStreamException {
- return iterator.next().getEventType();
- }
-
- public void require(int type, String namespaceURI, String localName)
- throws XMLStreamException {
- boolean require = false;
- String uri = getNamespaceURI();
- String name = getLocalName();
- if (state == type && namespaceURI.equals(uri) && localName.equals(name)) {
- require = true;
- }
- if (require != true) {
- throw new XMLStreamException();
- }
- }
-
- public boolean standaloneSet() {
- return false;
- }
-
-}
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLFragmentStreamReader.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLFragmentStreamReader.java
deleted file mode 100644
index 66361e1d76..0000000000
--- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLFragmentStreamReader.java
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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 org.apache.tuscany.sca.contribution.processor.xml;
-
-import javax.xml.namespace.NamespaceContext;
-import javax.xml.namespace.QName;
-import javax.xml.stream.XMLStreamReader;
-
-public interface XMLFragmentStreamReader extends XMLStreamReader {
- QName NIL_QNAME = new QName("http://www.w3.org/2001/XMLSchema-instance", "nil", "xsi");
- String NIL_VALUE_TRUE = "true";
-
- /**
- * this will help to handle Text within the current element. user should
- * pass the element text to the property list as this ELEMENT_TEXT as the
- * key. This key deliberately has a space in it so that it is not a valid
- * XML name
- */
- String ELEMENT_TEXT = "Element Text";
-
- /**
- * Extra method to query the state of the pullparser
- */
- boolean isDone();
-
- /**
- * add the parent namespace context to this parser
- */
- void setParentNamespaceContext(NamespaceContext nsContext);
-
- /**
- * Initiate the parser - this will do whatever the needed tasks to initiate
- * the parser and must be called before attempting any specific parsing
- * using this parser
- */
- void init();
-}
diff --git a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLStreamSerializer.java b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLStreamSerializer.java
new file mode 100644
index 0000000000..7c8ba4296e
--- /dev/null
+++ b/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/xml/XMLStreamSerializer.java
@@ -0,0 +1,287 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.tuscany.sca.contribution.processor.xml;
+
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.XMLStreamWriter;
+
+/**
+ * The XMLStreamSerializer pulls events from the XMLStreamReader and dumps into the XMLStreamWriter
+ *
+ * @version $Rev$ $Date$
+ */
+public class XMLStreamSerializer implements XMLStreamConstants {
+ public static final String NAMESPACE_PREFIX = "ns";
+ private static int namespaceSuffix;
+
+ /*
+ * The behavior of the Serializer is such that it returns when it encounters the starting element for the second
+ * time. The depth variable tracks the depth of the Serializer and tells it when to return. Note that it is assumed
+ * that this Serialization starts on an Element.
+ */
+
+ /**
+ * Field depth
+ */
+ private int depth;
+
+ /**
+ * Generates a unique namespace prefix that is not in the scope of the NamespaceContext
+ *
+ * @param nsCtxt
+ * @return string
+ */
+ private String generateUniquePrefix(NamespaceContext nsCtxt) {
+ String prefix = NAMESPACE_PREFIX + namespaceSuffix++;
+ // null should be returned if the prefix is not bound!
+ while (nsCtxt.getNamespaceURI(prefix) != null) {
+ prefix = NAMESPACE_PREFIX + namespaceSuffix++;
+ }
+
+ return prefix;
+ }
+
+ /**
+ * Method serialize.
+ *
+ * @param node
+ * @param writer
+ * @throws XMLStreamException
+ */
+ public void serialize(XMLStreamReader node, XMLStreamWriter writer) throws XMLStreamException {
+ serializeNode(node, writer);
+ }
+
+ /**
+ * @param reader
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void serializeAttributes(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+ int count = reader.getAttributeCount();
+ String prefix;
+ String namespaceName;
+ String writerPrefix;
+ for (int i = 0; i < count; i++) {
+ prefix = reader.getAttributePrefix(i);
+ namespaceName = reader.getAttributeNamespace(i);
+ /*
+ * Due to parser implementations returning null as the namespace URI (for the empty namespace) we need to
+ * make sure that we deal with a namespace name that is not null. The best way to work around this issue is
+ * to set the namespace URI to "" if it is null
+ */
+ if (namespaceName == null) {
+ namespaceName = "";
+ }
+
+ writerPrefix = writer.getPrefix(namespaceName);
+
+ if (!"".equals(namespaceName)) {
+ // prefix has already being declared but this particular
+ // attrib has a
+ // no prefix attached. So use the prefix provided by the
+ // writer
+ if (writerPrefix != null && (prefix == null || prefix.equals(""))) {
+ writer.writeAttribute(writerPrefix, namespaceName, reader.getAttributeLocalName(i), reader
+ .getAttributeValue(i));
+
+ // writer prefix is available but different from the
+ // current
+ // prefix of the attrib. We should be declaring the new
+ // prefix
+ // as a namespace declaration
+ } else if (prefix != null && !"".equals(prefix) && !prefix.equals(writerPrefix)) {
+ writer.writeNamespace(prefix, namespaceName);
+ writer.writeAttribute(prefix, namespaceName, reader.getAttributeLocalName(i), reader
+ .getAttributeValue(i));
+
+ // prefix is null (or empty), but the namespace name is
+ // valid! it has not
+ // being written previously also. So we need to generate
+ // a prefix
+ // here
+ } else if (prefix == null || prefix.equals("")) {
+ prefix = generateUniquePrefix(writer.getNamespaceContext());
+ writer.writeNamespace(prefix, namespaceName);
+ writer.writeAttribute(prefix, namespaceName, reader.getAttributeLocalName(i), reader
+ .getAttributeValue(i));
+ } else {
+ writer.writeAttribute(prefix, namespaceName, reader.getAttributeLocalName(i), reader
+ .getAttributeValue(i));
+ }
+ } else {
+ // empty namespace is equal to no namespace!
+ writer.writeAttribute(reader.getAttributeLocalName(i), reader.getAttributeValue(i));
+ }
+
+ }
+ }
+
+ /**
+ * Method serializeCData.
+ *
+ * @param reader
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void serializeCData(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+ writer.writeCData(reader.getText());
+ }
+
+ /**
+ * Method serializeComment.
+ *
+ * @param reader
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void serializeComment(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+ writer.writeComment(reader.getText());
+ }
+
+ /**
+ * @param reader
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void serializeElement(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+ String prefix = reader.getPrefix();
+ String nameSpaceName = reader.getNamespaceURI();
+ if (nameSpaceName != null) {
+ String writerPrefix = writer.getPrefix(nameSpaceName);
+ if (writerPrefix != null) {
+ writer.writeStartElement(nameSpaceName, reader.getLocalName());
+ } else {
+ if (prefix != null) {
+ writer.writeStartElement(prefix, reader.getLocalName(), nameSpaceName);
+ writer.writeNamespace(prefix, nameSpaceName);
+ // writer.setPrefix(prefix, nameSpaceName);
+ } else {
+ // [rfeng] We need to set default NS 1st before calling writeStateElement
+ writer.setDefaultNamespace(nameSpaceName);
+ writer.writeStartElement(nameSpaceName, reader.getLocalName());
+ writer.writeDefaultNamespace(nameSpaceName);
+ }
+ }
+ } else {
+ writer.writeStartElement(reader.getLocalName());
+ }
+
+ // add the namespaces
+ int count = reader.getNamespaceCount();
+ String namespacePrefix;
+ for (int i = 0; i < count; i++) {
+ namespacePrefix = reader.getNamespacePrefix(i);
+ // [rfeng] The following is commented out to allow to default ns
+ // if (namespacePrefix != null && namespacePrefix.length() == 0) {
+ // continue;
+ // }
+
+ serializeNamespace(namespacePrefix, reader.getNamespaceURI(i), writer);
+ }
+
+ // add attributes
+ serializeAttributes(reader, writer);
+
+ }
+
+ /**
+ * Method serializeEndElement.
+ *
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void serializeEndElement(XMLStreamWriter writer) throws XMLStreamException {
+ writer.writeEndElement();
+ }
+
+ /**
+ * Method serializeNamespace.
+ *
+ * @param prefix
+ * @param uri
+ * @param writer
+ * @throws XMLStreamException
+ */
+ private void serializeNamespace(String prefix, String uri, XMLStreamWriter writer) throws XMLStreamException {
+ String prefix1 = writer.getPrefix(uri);
+ if (prefix1 == null) {
+ writer.writeNamespace(prefix, uri);
+ // writer.setPrefix(prefix, uri);
+ }
+ }
+
+ /**
+ * Method serializeNode.
+ *
+ * @param reader
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void serializeNode(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+ while (true) {
+ int event = reader.getEventType();
+ if (event == START_ELEMENT) {
+ serializeElement(reader, writer);
+ depth++;
+ } else if (event == ATTRIBUTE) {
+ serializeAttributes(reader, writer);
+ } else if (event == CHARACTERS) {
+ serializeText(reader, writer);
+ } else if (event == COMMENT) {
+ serializeComment(reader, writer);
+ } else if (event == CDATA) {
+ serializeCData(reader, writer);
+ } else if (event == END_ELEMENT) {
+ serializeEndElement(writer);
+ depth--;
+ } else if (event == START_DOCUMENT) {
+ depth++; // if a start document is found then increment
+ writer.writeStartDocument();
+ // the depth
+ } else if (event == END_DOCUMENT) {
+ if (depth != 0) {
+ depth--; // for the end document - reduce the depth
+ }
+ writer.writeEndDocument();
+ }
+ if (depth == 0) {
+ break;
+ }
+ if (reader.hasNext()) {
+ reader.next();
+ } else {
+ break;
+ }
+ }
+ }
+
+ /**
+ * @param reader
+ * @param writer
+ * @throws XMLStreamException
+ */
+ protected void serializeText(XMLStreamReader reader, XMLStreamWriter writer) throws XMLStreamException {
+ writer.writeCharacters(reader.getText());
+ }
+}
diff --git a/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor b/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
index 9fcbca5c59..acebebb4e2 100644
--- a/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
+++ b/java/sca/modules/contribution/src/main/resources/META-INF/services/org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor
@@ -17,7 +17,7 @@
# Implementation class for the artifact processor extension
org.apache.tuscany.sca.contribution.xml.ContributionMetadataProcessor;qname=http://docs.oasis-open.org/ns/opencsa/sca/200903#contribution,model=org.apache.tuscany.sca.contribution.ContributionMetadata
-org.apache.tuscany.sca.contribution.processor.xml.AnyElementProcessor;qname=http://www.w3.org/2001/XMLSchema#anyElement,model=java.lang.Object
+org.apache.tuscany.sca.contribution.processor.xml.AnyElementProcessor;qname=http://www.w3.org/2001/XMLSchema#any,model=org.apache.tuscany.sca.assembly.Extension
org.apache.tuscany.sca.contribution.namespace.impl.NamespaceImportProcessor;qname=http://docs.oasis-open.org/ns/opencsa/sca/200903#import,model=org.apache.tuscany.sca.contribution.namespace.NamespaceImport
org.apache.tuscany.sca.contribution.namespace.impl.NamespaceExportProcessor;qname=http://docs.oasis-open.org/ns/opencsa/sca/200903#export,model=org.apache.tuscany.sca.contribution.namespace.NamespaceExport
org.apache.tuscany.sca.contribution.java.impl.JavaImportProcessor;qname=http://docs.oasis-open.org/ns/opencsa/sca/200903#import.java,model=org.apache.tuscany.sca.contribution.java.JavaImport