diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/implementation-osgi/src/main/java/org/apache/tuscany/sca/implementation/osgi/xml/ServiceDescriptionsProcessor.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0.1-RC1/modules/implementation-osgi/src/main/java/org/apache/tuscany/sca/implementation/osgi/xml/ServiceDescriptionsProcessor.java | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-osgi/src/main/java/org/apache/tuscany/sca/implementation/osgi/xml/ServiceDescriptionsProcessor.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-osgi/src/main/java/org/apache/tuscany/sca/implementation/osgi/xml/ServiceDescriptionsProcessor.java new file mode 100644 index 0000000000..891fed13d0 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-osgi/src/main/java/org/apache/tuscany/sca/implementation/osgi/xml/ServiceDescriptionsProcessor.java @@ -0,0 +1,255 @@ +/* + * 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.implementation.osgi.xml; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashSet; +import java.util.StringTokenizer; + +import javax.xml.namespace.QName; +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.contribution.processor.BaseStAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.processor.ContributionReadException; +import org.apache.tuscany.sca.contribution.processor.ContributionResolveException; +import org.apache.tuscany.sca.contribution.processor.ContributionWriteException; +import org.apache.tuscany.sca.contribution.processor.ProcessorContext; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +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.implementation.osgi.ServiceDescription; +import org.apache.tuscany.sca.implementation.osgi.ServiceDescriptions; +import org.apache.tuscany.sca.implementation.osgi.ServiceDescriptionsFactory; +import org.osgi.framework.Constants; + +/* +<?xml version="1.0" encoding="UTF-8"?> +<endpoint-descriptions xmlns="http://www.osgi.org/xmlns/rsa/v1.0.0"> + <endpoint-description> + <property name="service.intents"> + <list> + <value>SOAP</value> + <value>HTTP</value> + </list> + </property> + <property name="endpoint.id" value="http://ws.acme.com:9000/hello"/> + <property name="objectClass" value="com.acme.Foo"/> + <property name="endpoint.package.version.com.acme" value="4.2"/> + <property name="service.imported.configs" value="com.acme"/> + <property name="com.acme.ws.xml"> + <xml> + <config xmlns="http://acme.com/defs"> + <port>1029</port> + <host>www.acme.com</host> + </config> + </xml> + </property> + </endpoint-description> +</endpoint-descriptions> +*/ +public class ServiceDescriptionsProcessor extends BaseStAXArtifactProcessor implements + StAXArtifactProcessor<ServiceDescriptions> { + private ServiceDescriptionsFactory factory; + private StAXArtifactProcessor processor; + + public ServiceDescriptionsProcessor(ExtensionPointRegistry registry, StAXArtifactProcessor processor) { + this.processor = processor; + FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class); + this.factory = modelFactories.getFactory(ServiceDescriptionsFactory.class); + } + + public ServiceDescriptions read(XMLStreamReader reader, ProcessorContext context) throws XMLStreamException, + ContributionReadException { + int event = reader.getEventType(); + ServiceDescriptions sds = null; + ServiceDescription sd = null; + String propertyName = null; + String propertyType = "String"; + Object propertyValue = null; + String propertyLiteral = null; + boolean xml = false; + boolean multiValued = false; + while (true) { + switch (event) { + case XMLStreamConstants.START_ELEMENT: + QName name = reader.getName(); + if (ServiceDescriptions.SERVICE_DESCRIPTIONS_QNAME.equals(name)) { + sds = factory.createServiceDescriptions(); + } else if (ServiceDescriptions.SERVICE_DESCRIPTION_QNAME.equals(name)) { + sd = factory.createServiceDescription(); + sds.add(sd); + } else if ("property".equals(name.getLocalPart())) { + multiValued = false; + propertyName = reader.getAttributeValue(null, "name"); + propertyType = reader.getAttributeValue(null, "value-type"); + if (propertyType == null) { + propertyType = "String"; + } + propertyLiteral = reader.getAttributeValue(null, "value"); + // if (propertyLiteral == null) { + // propertyLiteral = reader.getElementText(); + // } + if (propertyLiteral != null) { + propertyLiteral = propertyLiteral.trim(); + propertyValue = getPropertyValue(reader, propertyName, propertyLiteral, propertyType); + } + } else if ("list".equals(name.getLocalPart())) { + if (propertyValue != null) { + throw new IllegalArgumentException("@value and <list> are both present"); + } + propertyValue = new ArrayList<Object>(); + multiValued = true; + } else if ("array".equals(name.getLocalPart())) { + if (propertyValue != null) { + throw new IllegalArgumentException("@value and <array> are both present"); + } + propertyValue = new ArrayList<Object>(); + multiValued = true; + } else if ("set".equals(name.getLocalPart())) { + if (propertyValue != null) { + throw new IllegalArgumentException("@value and <set> are both present"); + } + propertyValue = new HashSet<Object>(); + multiValued = true; + } else if ("xml".equals(name.getLocalPart())) { + xml = true; + } else if ("value".equals(name.getLocalPart())) { + propertyLiteral = reader.getElementText(); + if (propertyLiteral != null) { + propertyLiteral = propertyLiteral.trim(); + Object value = getPropertyValue(reader, propertyName, propertyLiteral, propertyType); + if (multiValued && (propertyValue instanceof Collection)) { + ((Collection)propertyValue).add(value); + } else if (propertyValue == null) { + propertyValue = value; + } + } + } else { + // FIXME: [rfeng] The rsa spec says the XML should be saved as String + Object value = processor.read(reader, context); + if (xml) { + if (multiValued && (propertyValue instanceof Collection)) { + ((Collection)propertyValue).add(value); + } else if (propertyValue == null) { + propertyValue = value; + } + } + } + break; + case XMLStreamConstants.END_ELEMENT: + name = reader.getName(); + if (ServiceDescriptions.SERVICE_DESCRIPTION_QNAME.equals(name)) { + // Reset the sd + sd = null; + } else if (ServiceDescriptions.PROPERTY_QNAME.equals(name)) { + if (sd != null && propertyName != null) { + if (propertyValue == null) { + throw new IllegalArgumentException("No value is defined for " + propertyName); + } + sd.getProperties().put(propertyName, propertyValue); + } + propertyName = null; + propertyType = "String"; + propertyValue = null; + multiValued = false; + } else if (ServiceDescriptions.XML_QNAME.equals(name)) { + xml = false; + } else if (ServiceDescriptions.SERVICE_DESCRIPTIONS_QNAME.equals(name)) { + return sds; + } + break; + } + if (reader.hasNext()) { + event = reader.next(); + } else { + return sds; + } + } + } + + private Object getPropertyValue(XMLStreamReader reader, String propertyName, String propertyLiteral, String propType) { + Object propertyValue = null; + propertyValue = propertyLiteral; + if ("Integer".equals(propType) || "int".equals(propType)) { + propertyValue = Integer.valueOf(propertyLiteral); + } else if ("Long".equals(propType) || "long".equals(propType)) { + propertyValue = Long.valueOf(propertyLiteral); + } else if ("Float".equals(propType) || "float".equals(propType)) { + propertyValue = Float.valueOf(propertyLiteral); + } else if ("Double".equals(propType) || "double".equals(propType)) { + propertyValue = Double.valueOf(propertyLiteral); + } else if ("Short".equals(propType) || "short".equals(propType)) { + propertyValue = Short.valueOf(propertyLiteral); + } else if ("Character".equals(propType) || "char".equals(propType)) { + propertyValue = propertyLiteral.charAt(0); + } else if ("Byte".equals(propType) || "byte".equals(propType)) { + propertyValue = Byte.valueOf(propertyLiteral); + } else if ("Boolean".equals(propType) || "boolean".equals(propType)) { + propertyValue = Boolean.valueOf(propertyLiteral); + } + if (propertyName.endsWith(".intents")) { + propertyValue = toQNames(reader, propertyLiteral); + } + if (Constants.OBJECTCLASS.equals(propertyName)) { + return propertyLiteral.split("( |\t|\n|\r|\f)+"); + } + return propertyValue; + } + + /** + * Convert ns1:e1 ns2:e2 to {http://ns1}e1 {http://ns2}e2 + * @param reader + * @param value + * @return + */ + private String toQNames(XMLStreamReader reader, String value) { + if (value == null) { + return null; + } + StringBuffer sb = new StringBuffer(); + for (StringTokenizer tokens = new StringTokenizer(value, " \t\n\r\f,"); tokens.hasMoreTokens();) { + QName qname = getQNameValue(reader, tokens.nextToken()); + sb.append(qname.toString()).append(' '); + } + return sb.toString().trim(); + } + + public QName getArtifactType() { + return ServiceDescriptions.SERVICE_DESCRIPTIONS_QNAME; + } + + public void write(ServiceDescriptions model, XMLStreamWriter writer, ProcessorContext context) + throws ContributionWriteException, XMLStreamException { + // TODO: To be implemented + } + + public Class<ServiceDescriptions> getModelType() { + return ServiceDescriptions.class; + } + + public void resolve(ServiceDescriptions model, ModelResolver resolver, ProcessorContext context) + throws ContributionResolveException { + } +} |