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Diffstat (limited to 'java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java')
| -rw-r--r-- | java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java | 283 |
1 files changed, 0 insertions, 283 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 deleted file mode 100644 index 132b7a8858..0000000000 --- a/java/sca/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/processor/ExtensibleStAXArtifactProcessor.java +++ /dev/null @@ -1,283 +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.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.util.logging.Level; -import java.util.logging.Logger; - -import javax.xml.namespace.QName; -import javax.xml.stream.Location; -import javax.xml.stream.XMLInputFactory; -import javax.xml.stream.XMLOutputFactory; -import javax.xml.stream.XMLStreamConstants; -import javax.xml.stream.XMLStreamException; -import javax.xml.stream.XMLStreamReader; -import javax.xml.stream.XMLStreamWriter; - -import org.apache.tuscany.sca.assembly.Extension; -import org.apache.tuscany.sca.contribution.resolver.ModelResolver; -import org.apache.tuscany.sca.core.ExtensionPointRegistry; -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; - -/** - * Implementation of an extensible StAX artifact processor. - * - * Takes a StAXArtifactProcessorExtensionPoint and delegates to the proper - * StAXArtifactProcessor by element QName - * - * @version $Rev$ $Date$ - */ -public class ExtensibleStAXArtifactProcessor implements StAXArtifactProcessor<Object> { - private static final Logger logger = Logger.getLogger(ExtensibleStAXArtifactProcessor.class.getName()); - private static final String XMLSCHEMA_NS = "http://www.w3.org/2001/XMLSchema"; - public static final QName ANY_ELEMENT = new QName(XMLSCHEMA_NS, "any"); - - private XMLInputFactory inputFactory; - private XMLOutputFactory outputFactory; - private StAXArtifactProcessorExtensionPoint processors; - - /** - * Constructs a new ExtensibleStAXArtifactProcessor. - * @param processors - * @param inputFactory - * @param outputFactory - */ - public ExtensibleStAXArtifactProcessor(StAXArtifactProcessorExtensionPoint processors, - XMLInputFactory inputFactory, - XMLOutputFactory outputFactory) { - super(); - this.processors = processors; - this.inputFactory = inputFactory; - this.outputFactory = outputFactory; - if (this.outputFactory != null) { - this.outputFactory.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, Boolean.TRUE); - } - } - - public ExtensibleStAXArtifactProcessor(ExtensionPointRegistry registry) { - super(); - this.processors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class); - FactoryExtensionPoint factories = registry.getExtensionPoint(FactoryExtensionPoint.class); - this.inputFactory = factories.getFactory(XMLInputFactory.class); - this.outputFactory = factories.getFactory(XMLOutputFactory.class); - if (this.outputFactory != null) { - this.outputFactory.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, Boolean.TRUE); - } - } - - /** - * Report a warning. - * - * @param problems - * @param message - * @param model - */ - private void warning(Monitor monitor, String message, Object model, Object... messageParameters) { - if (monitor != null) { - Problem problem = - monitor.createProblem(this.getClass().getName(), - "contribution-validation-messages", - Severity.WARNING, - model, - message, - (Object[])messageParameters); - monitor.problem(problem); - } - } - - /** - * Report a error. - * - * @param problems - * @param message - * @param model - */ - private void error(Monitor monitor, String message, Object model, Object... messageParameters) { - if (monitor != null) { - Problem problem = - monitor.createProblem(this.getClass().getName(), - "contribution-validation-messages", - Severity.ERROR, - model, - message, - (Object[])messageParameters); - monitor.problem(problem); - } - } - - /** - * 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-validation-messages", - Severity.ERROR, - model, - message, - ex); - monitor.problem(problem); - } - } - - public Object read(XMLStreamReader source, ProcessorContext context) throws ContributionReadException, XMLStreamException { - Monitor monitor = context.getMonitor(); - // Delegate to the processor associated with the element QName - int event = source.getEventType(); - if (event == XMLStreamConstants.START_DOCUMENT) { - source.nextTag(); - } - QName name = source.getName(); - StAXArtifactProcessor<?> processor = (StAXArtifactProcessor<?>)processors.getProcessor(name); - if (processor == null) { - Location location = source.getLocation(); - error(monitor, "ElementCannotBeProcessed", processors, name, location); - - StAXArtifactProcessor anyElementProcessor = processors.getProcessor(ANY_ELEMENT); - if (anyElementProcessor != null) { - return anyElementProcessor.read(source, context); - } else { - return null; - } - } - return processor.read(source, context); - } - - @SuppressWarnings("unchecked") - public void write(Object model, XMLStreamWriter outputSource, ProcessorContext context) throws ContributionWriteException, XMLStreamException { - // Delegate to the processor associated with the model type - if (model != null) { - StAXArtifactProcessor processor = processors.getProcessor(model.getClass()); - if (processor != null) { - processor.write(model, outputSource, context); - } else { - if (logger.isLoggable(Level.WARNING)) { - logger.warning("No StAX processor is configured to handle " + model.getClass()); - } - StAXArtifactProcessor anyElementProcessor = processors.getProcessor(ANY_ELEMENT); - if ((model instanceof Extension) && anyElementProcessor != null) { - anyElementProcessor.write(model, outputSource, context); - } - } - } - } - - @SuppressWarnings("unchecked") - public void resolve(Object model, ModelResolver resolver, ProcessorContext context) throws ContributionResolveException { - - // Delegate to the processor associated with the model type - if (model != null) { - StAXArtifactProcessor processor = processors.getProcessor(model.getClass()); - if (processor != null) { - processor.resolve(model, resolver, context); - } - } - } - - /** - * Read a model from an InputStream. - * @param is The artifact InputStream - * @param type Model type - * @param context TODO - * @return The model - * @throws ContributionReadException - */ - public <M> M read(InputStream is, Class<M> type, ProcessorContext context) throws ContributionReadException { - Monitor monitor = context.getMonitor(); - try { - XMLStreamReader reader; - try { - reader = inputFactory.createXMLStreamReader(is); - try { - reader.nextTag(); - QName name = reader.getName(); - Object mo = read(reader, context); - if (type.isInstance(mo)) { - return type.cast(mo); - } else { - error(monitor, "UnrecognizedElementException", reader, name); - UnrecognizedElementException e = new UnrecognizedElementException(name); - throw e; - } - } catch (ContributionReadException e) { - Location location = reader.getLocation(); - e.setLine(location.getLineNumber()); - e.setColumn(location.getColumnNumber()); - error(monitor, "ContributionReadException", reader, e); - throw e; - } finally { - try { - reader.close(); - } catch (XMLStreamException e) { - // ignore - } - } - } finally { - try { - is.close(); - } catch (IOException e) { - // ignore - } - } - } catch (XMLStreamException e) { - ContributionReadException ce = new ContributionReadException(e); - error(monitor, "ContributionReadException", inputFactory, ce); - throw ce; - } - } - - /** - * Write a model to an OutputStream. - * @param model - * @param os - * @param context - * @throws ContributionWriteException - */ - public void write(Object model, OutputStream os, ProcessorContext context) throws ContributionWriteException { - try { - XMLStreamWriter writer = outputFactory.createXMLStreamWriter(os); - write(model, writer, context); - writer.flush(); - writer.close(); - } catch (XMLStreamException e) { - ContributionWriteException cw = new ContributionWriteException(e); - error(context.getMonitor(), "ContributionWriteException", outputFactory, cw); - throw cw; - } - } - - public QName getArtifactType() { - return null; - } - - public Class<Object> getModelType() { - return null; - } -} |