1 files changed, 127 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataDocumentProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataDocumentProcessor.java
new file mode 100644
index 0000000000..30220901a0
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/xml/ContributionMetadataDocumentProcessor.java
@@ -0,0 +1,127 @@
+/*
+ * 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.xml;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URL;
+
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import org.apache.tuscany.sca.common.java.io.IOHelper;
+import org.apache.tuscany.sca.contribution.ContributionMetadata;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
+import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
+import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor;
+import org.apache.tuscany.sca.contribution.processor.ValidatingXMLInputFactory;
+import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
+import org.apache.tuscany.sca.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+
+/**
+ * URLArtifactProcessor that handles sca-contribution.xml files.
+ *
+ * @version $Rev$ $Date$
+ */
+public class ContributionMetadataDocumentProcessor implements URLArtifactProcessor<ContributionMetadata>{
+    private final StAXArtifactProcessor staxProcessor;
+    private final XMLInputFactory inputFactory;
+
+    public ContributionMetadataDocumentProcessor(XMLInputFactory inputFactory,
+                                                 StAXArtifactProcessor staxProcessor) {
+        this.inputFactory = inputFactory;
+        this.staxProcessor = staxProcessor;
+    }
+
+    public ContributionMetadataDocumentProcessor(FactoryExtensionPoint modelFactories,
+                                                 StAXArtifactProcessor staxProcessor) {
+        this.inputFactory = modelFactories.getFactory(ValidatingXMLInputFactory.class);
+        this.staxProcessor = staxProcessor;
+    }
+
+    public String getArtifactType() {
+        return "/META-INF/sca-contribution.xml";
+    }
+
+    public Class<ContributionMetadata> getModelType() {
+        return ContributionMetadata.class;
+    }
+
+    public ContributionMetadata read(URL contributionURL, URI uri, URL url, ProcessorContext context) throws ContributionReadException {
+        InputStream urlStream = null;
+        try {
+
+            // Create a stream reader
+            urlStream = IOHelper.openStream(url);
+            XMLStreamReader reader = inputFactory.createXMLStreamReader(url.toString(), urlStream);
+            ValidatingXMLInputFactory.setMonitor(reader, context.getMonitor());
+
+            reader.nextTag();
+
+            // Read the contribution model
+            ContributionMetadata contribution = (ContributionMetadata)staxProcessor.read(reader, context);
+
+            return contribution;
+
+        } catch (XMLStreamException e) {
+        	ContributionReadException ex = new ContributionReadException(e);
+        	error(context.getMonitor(), "XMLStreamException", inputFactory, ex);
+        	throw ex;
+        } catch (IOException e) {
+        	ContributionReadException ex = new ContributionReadException(e);
+        	error(context.getMonitor(), "IOException", inputFactory, ex);
+            throw ex;
+        } finally {
+            try {
+                if (urlStream != null) {
+                    urlStream.close();
+                    urlStream = null;
+                }
+            } catch (IOException ioe) {
+                //ignore
+            }
+        }
+    }
+
+    public void resolve(ContributionMetadata contribution, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException {
+        staxProcessor.resolve(contribution, resolver, context);
+    }
+
+    /**
+     * Report a exception.
+     *
+     * @param problems
+     * @param message
+     * @param model
+     */
+    private void error(Monitor monitor, String message, Object model, Exception ex) {
+        if (monitor != null) {
+            Problem problem = monitor.createProblem(this.getClass().getName(), "contribution-xml-validation-messages", Severity.ERROR, model, message, ex);
+            monitor.problem(problem);
+        }
+    }
+
+}