1 files changed, 92 insertions, 0 deletions
diff --git a/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/util/StreamDeserializer.java b/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/util/StreamDeserializer.java
new file mode 100644
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+++ b/sdo-java/branches/sdo-1.1-incubating/impl/src/main/java/org/apache/tuscany/sdo/util/StreamDeserializer.java
@@ -0,0 +1,92 @@
+/**
+ *
+ *  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.sdo.util;
+
+import java.util.Comparator;
+
+import javax.xml.XMLConstants;
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.stream.XMLStreamConstants;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sdo.util.resource.RecordedEventXMLStreamReader;
+import org.eclipse.emf.ecore.EDataType;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.emf.ecore.util.ExtendedMetaData;
+import org.eclipse.emf.ecore.xmi.XMLResource;
+import org.eclipse.emf.ecore.xml.type.internal.QName;
+
+/**
+ * StAX Deserializer. The instance isn't thread-safe, however it's safe to use the instance any times on the same thread.
+ */
+public class StreamDeserializer implements XMLStreamConstants {
+    protected XMLStreamReader reader;
+
+    protected final XMLStreamReader play(RecordedEventXMLStreamReader.Tag tag) {
+        return tag.play(reader);
+    }
+
+    protected String nameSpace, name;
+
+    protected final boolean typedXSI() {
+        name = reader.getAttributeValue(ExtendedMetaData.XSI_URI, XMLResource.TYPE);
+        if (name == null)
+            return false;
+        int index = name.indexOf(':');
+        if (index == -1)
+            nameSpace = reader.getNamespaceURI(XMLConstants.DEFAULT_NS_PREFIX); // may be XMLConstants.NULL_NS_URI
+        else {
+            nameSpace = reader.getNamespaceURI(name.substring(0, index));
+            name = name.substring(++index);
+        }
+        return true;
+    }
+
+    static protected Object value(Object type, String literal, NamespaceContext nameSpaces) {
+        Object value = EcoreUtil.createFromString((EDataType) type, literal);
+        if (!(value instanceof QName))
+            return value;
+        QName qName = (QName) value;
+        qName.setNamespaceURI(nameSpaces.getNamespaceURI(qName.getPrefix()));
+        return value;
+    }
+
+    static public class Attribute {
+        public String name, value;
+    }
+
+    static public final class QualifiedAttribute extends Attribute {
+        public String nameSpace;
+    }
+
+    static protected final Comparator EQUAL_NULL = new Comparator() {
+        public int compare(Object v, Object NULL) {
+            return v == null || v.equals(null) ? 0 : 1;
+        }
+    }, EQUAL = new Comparator() {
+        public int compare(Object v, Object value) {
+            return value.equals(v) ? 0 : -1;
+        }
+    }, SAME = new Comparator() {
+        public int compare(Object v, Object value) {
+            return value == v ? 0 : -1;
+        }
+    };
+}