diff options
Diffstat (limited to 'sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany')
10 files changed, 826 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/Constants.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/Constants.java new file mode 100644 index 0000000000..b0b4b132e6 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/Constants.java @@ -0,0 +1,33 @@ +/* + * 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.das; + +/** + * Generic constants used in this implementation + * + * @version $Rev$ $Date$ + */ +public interface Constants { + /** + * Identify Relation Database data store + */ + String DATA_ACCESS_TYPE_RDB = "rdb"; + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DAS.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DAS.java new file mode 100644 index 0000000000..1fc46ea710 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DAS.java @@ -0,0 +1,49 @@ +/* + * 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.das; + +import commonj.sdo.DataObject; + + +/** + * The service interface of a DAS service provided by DAS components. + * + * @version $Rev$ $Date$ + */ +public interface DAS { + + /** + * Execute a DAS Command specified on the DAS config file. + * @param commandName The name of the command + * @return + */ + DataObject executeCommand(String commandName); + + /**Execute a DAS Command specified on the DAS config file, + * and narrow the results based on the provided XPath + * + * @param commandName The name of the command + * @param xPath The xPath filter + * @return + */ + DataObject executeCommand(String commandName, String xPath); + + + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementation.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementation.java new file mode 100644 index 0000000000..0e0c689b41 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementation.java @@ -0,0 +1,146 @@ +/* + * 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.das; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.ConstrainingType; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.Property; +import org.apache.tuscany.sca.assembly.Reference; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.data.engine.config.ConnectionInfo; +import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; + + +/** + * The model representing a sample DAS implementation in an SCA assembly model. + * + * @version $Rev$ $Date$ + */ +public class DASImplementation implements Implementation { + + private String dasConfig; + private String dataAccessType; + + private ConnectionInfo connectionInfo; + + private boolean unresolved; + private List<Service> services = new ArrayList<Service>(); + + /** + * Constructs a new DAS implementation. + */ + public DASImplementation(AssemblyFactory assemblyFactory, + JavaInterfaceFactory javaFactory) { + + // DAS implementation always provide a single service exposing + // the DAS interface, and have no references and properties + Service dasService = null; + dasService = assemblyFactory.createService(); + dasService.setName("DAS"); + JavaInterface javaInterface; + try { + javaInterface = javaFactory.createJavaInterface(DAS.class); + } catch (InvalidInterfaceException e) { + throw new IllegalArgumentException(e); + } + JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract(); + interfaceContract.setInterface(javaInterface); + dasService.setInterfaceContract(interfaceContract); + + services.add(dasService); + } + + /* DAS Model Information */ + + public String getConfig() { + return this.dasConfig; + } + + public void setConfig(String config) { + this.dasConfig = config; + } + + public String getDataAccessType() { + return this.dataAccessType; + } + + public void setDataAccessType (String dataAccessType) { + this.dataAccessType = dataAccessType; + } + + public ConnectionInfo getConnectionInfo() { + return this.connectionInfo; + } + + public void setConnectionInfo(ConnectionInfo connectionInfo) { + this.connectionInfo = connectionInfo; + } + + /* SCA Model Information */ + + public ConstrainingType getConstrainingType() { + // DAS implementation does not support constrainingTypes + return null; + } + + public List<Property> getProperties() { + // DAS implementation does not support properties + return Collections.emptyList(); + } + + public List<Reference> getReferences() { + // DAS implementation does not support references + return Collections.emptyList(); + } + + public List<Service> getServices() { + return services; + } + + public String getURI() { + // DAS implementation does not have a URI + return null; + } + + public boolean isUnresolved() { + return unresolved; + } + + public void setConstrainingType(ConstrainingType constrainingType) { + // DAS implementation does not support constrainingTypes + } + + public void setURI(String uri) { + // DAS implementation does not have a URI + + } + + public void setUnresolved(boolean undefined) { + this.unresolved = undefined; + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementationFactory.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementationFactory.java new file mode 100644 index 0000000000..93d22d2d5a --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementationFactory.java @@ -0,0 +1,36 @@ +/* + * 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.das; + +/** + * A factory for the sample DAS implementation model. + * + * @version $Rev$ $Date$ + */ +public interface DASImplementationFactory { + + /** + * Creates a new CRUD implementation. + * + * @return + */ + DASImplementation createDASImplementation(); + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementationProcessor.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementationProcessor.java new file mode 100644 index 0000000000..0e90c90082 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DASImplementationProcessor.java @@ -0,0 +1,271 @@ +/* + * 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.das; + +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import java.util.HashMap; +import java.util.Map; + +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.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.ComponentType; +import org.apache.tuscany.sca.assembly.Property; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.assembly.builder.impl.ProblemImpl; +import org.apache.tuscany.sca.assembly.xml.Constants; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.contribution.service.ContributionWriteException; +import org.apache.tuscany.sca.data.engine.ConnectionInfoArtifactProcessor; +import org.apache.tuscany.sca.data.engine.config.ConnectionInfo; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; + + +/** + * Implements a StAX artifact processor for DAS implementations. + * + * The artifact processor is responsible for processing <implementation.das> + * elements in SCA assembly XML composite files and populating the DAS + * implementation model, resolving its references to other artifacts in the SCA + * contribution, and optionally write the model back to SCA assembly XML. + * + * @version $Rev$ $Date$ + */ +public class DASImplementationProcessor implements StAXArtifactProcessor<DASImplementation> { + private static final QName IMPLEMENTATION_DAS = new QName(Constants.SCA10_TUSCANY_NS, "implementation.das"); + + private DASImplementationFactory dasFactory; + + private final AssemblyFactory assemblyFactory; + private final JavaInterfaceFactory javaFactory; + private Monitor monitor; + private StAXArtifactProcessor<ConnectionInfo> connectionInfoProcessor; + + public DASImplementationProcessor(ModelFactoryExtensionPoint modelFactories, Monitor monitor) { + assemblyFactory = modelFactories.getFactory(AssemblyFactory.class); + javaFactory = modelFactories.getFactory(JavaInterfaceFactory.class); + this.monitor = monitor; + this.dasFactory = new DefaultDASImplementationFactory(assemblyFactory, javaFactory); + this.connectionInfoProcessor = new ConnectionInfoArtifactProcessor(modelFactories, this.monitor); + } + + public QName getArtifactType() { + // Returns the QName of the XML element processed by this processor + return IMPLEMENTATION_DAS; + } + + public Class<DASImplementation> getModelType() { + // Returns the type of model processed by this processor + return DASImplementation.class; + } + + /** + * Report a error. + * + * @param problems + * @param message + * @param model + */ + private void error(String message, Object model, Object... messageParameters) { + if (monitor != null) { + Problem problem = new ProblemImpl(this.getClass().getName(), "impl-das-validation-messages", Severity.ERROR, model, message, (Object[])messageParameters); + monitor.problem(problem); + } + } + + /* + * <component name="CompanyDataComponent"> + * <implementation.das config="/CompanyConfig.xml" dataAccessType="rdb"> + * <connectionInfo> + * <connectionProperties + * driverClass="org.apache.derby.jdbc.EmbeddedDriver" + * databaseURL="jdbc:derby:target/test-classes/dastest; create = true" + * loginTimeout="600000"/> + * </connectionInfo> + * </implementation.data> + * </component> + */ + public DASImplementation read(XMLStreamReader reader) throws ContributionReadException, XMLStreamException { + assert IMPLEMENTATION_DAS.equals(reader.getName()); + + // Read an <implementation.das> element + + // Create an initialize the DAS implementation model + DASImplementation implementation = null; + + // Read the das config file attribute. + // This is das configuration side file to use + String config = reader.getAttributeValue(null, "config"); + + // Read the data access type attribute + // This is the type of data store in use (e.g RDB, XML, etc) + String dataAccessType = reader.getAttributeValue(null, "dataAccessType"); + + // Both config and dataAccessType are required attributes, hence validating. + if (config == null || dataAccessType == null) { + if (config == null) + error("ConfigAttributeMissing", reader); + if (dataAccessType == null) + error("DataAccessTypeAttributeMissing", reader); + return implementation; + } + + // Create an initialize the DAS implementation model + implementation = dasFactory.createDASImplementation(); + implementation.setConfig(config); + implementation.setDataAccessType(dataAccessType); + implementation.setUnresolved(true); + + while (true) { + int event = reader.next(); + switch (event) { + + case START_ELEMENT: + if (ConnectionInfoArtifactProcessor.CONNECTION_INFO.equals(reader.getName())) { + + // Read connection info + ConnectionInfo connectionInfo = (ConnectionInfo) connectionInfoProcessor.read(reader); + implementation.setConnectionInfo(connectionInfo); + } + break; + case XMLStreamConstants.END_ELEMENT: + if (IMPLEMENTATION_DAS.equals(reader.getName())) { + return implementation; + } + break; + } + } + } + + public void resolve(DASImplementation impl, ModelResolver resolver) throws ContributionResolveException { + if( impl != null && impl.isUnresolved()) { + //resolve component type + mergeComponentType(resolver, impl); + + //set current implementation resolved + impl.setUnresolved(false); + } + } + + public void write(DASImplementation implementation, XMLStreamWriter writer) throws ContributionWriteException, XMLStreamException { + + writer.writeStartElement(IMPLEMENTATION_DAS.getNamespaceURI(), IMPLEMENTATION_DAS.getLocalPart()); + + if (implementation.getConfig() != null) { + writer.writeAttribute("config", implementation.getConfig()); + } + if (implementation.getDataAccessType() != null) { + writer.writeAttribute("dataAccessType", implementation.getDataAccessType()); + } + + if (implementation.getConnectionInfo() != null) { + connectionInfoProcessor.write(implementation.getConnectionInfo(), writer); + } + + writer.writeEndElement(); + } + + /** + * Merge the componentType from introspection and external file + * @param resolver + * @param impl + */ + private void mergeComponentType(ModelResolver resolver, DASImplementation impl) { + // FIXME: Need to clarify how to merge + ComponentType componentType = getComponentType(resolver, impl); + if (componentType != null && !componentType.isUnresolved()) { + /* + Map<String, Reference> refMap = new HashMap<String, Reference>(); + for (Reference ref : impl.getReferences()) { + refMap.put(ref.getName(), ref); + } + for (Reference reference : componentType.getReferences()) { + refMap.put(reference.getName(), reference); + } + impl.getReferences().clear(); + impl.getReferences().addAll(refMap.values()); + + // Try to match references by type + Map<String, JavaElementImpl> refMembers = impl.getReferenceMembers(); + for (Reference ref : impl.getReferences()) { + if (ref.getInterfaceContract() != null) { + Interface i = ref.getInterfaceContract().getInterface(); + if (i instanceof JavaInterface) { + Class<?> type = ((JavaInterface)i).getJavaClass(); + if (!refMembers.containsKey(ref.getName())) { + JavaElementImpl e = getMemeber(impl, ref.getName(), type); + if (e != null) { + refMembers.put(ref.getName(), e); + } + } + } + } + }*/ + + Map<String, Service> serviceMap = new HashMap<String, Service>(); + for (Service svc : impl.getServices()) { + if(svc != null) { + serviceMap.put(svc.getName(), svc); + } + } + for (Service service : componentType.getServices()) { + serviceMap.put(service.getName(), service); + } + impl.getServices().clear(); + impl.getServices().addAll(serviceMap.values()); + + Map<String, Property> propMap = new HashMap<String, Property>(); + for (Property prop : impl.getProperties()) { + propMap.put(prop.getName(), prop); + } + } + } + + private String getFileName(String filePath) { + int pos = filePath.lastIndexOf("."); + + return filePath.substring(0, pos); + + } + + private ComponentType getComponentType(ModelResolver resolver, DASImplementation impl) { + String dasConfig = this.getFileName(impl.getConfig()); + String componentTypeURI = dasConfig.replace('.', '/') + ".componentType"; + ComponentType componentType = assemblyFactory.createComponentType(); + componentType.setUnresolved(true); + componentType.setURI(componentTypeURI); + componentType = resolver.resolveModel(ComponentType.class, componentType); + if (!componentType.isUnresolved()) { + return componentType; + } + return null; + } +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DefaultDASImplementationFactory.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DefaultDASImplementationFactory.java new file mode 100644 index 0000000000..2e18541b3b --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/DefaultDASImplementationFactory.java @@ -0,0 +1,46 @@ +/* + * 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.das; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory; + + +/** + * A default factory for the DAS implementation model. + * + * @version $Rev$ $Date$ + */ +public class DefaultDASImplementationFactory implements DASImplementationFactory { + + private AssemblyFactory assemblyFactory; + private JavaInterfaceFactory javaFactory; + + public DefaultDASImplementationFactory(AssemblyFactory assemblyFactory, + JavaInterfaceFactory javaFactory) { + this.assemblyFactory = assemblyFactory; + this.javaFactory = javaFactory; + } + + public DASImplementation createDASImplementation() { + return new DASImplementation(assemblyFactory, javaFactory); + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/annotations/Command.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/annotations/Command.java new file mode 100644 index 0000000000..c8c3fd75e6 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/annotations/Command.java @@ -0,0 +1,36 @@ +/* + * 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.das.annotations; + +/** + * + * @version $Rev$ $Date$ + */ +public @interface Command { + enum TYPE {SELECT, INSERT, DELETE, UPDATE} + + /** + * Defines an Ad hoc command query + * @return + */ + String query() default ""; + + TYPE type() default TYPE.SELECT; +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASImplementationProvider.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASImplementationProvider.java new file mode 100644 index 0000000000..40f414b7ef --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASImplementationProvider.java @@ -0,0 +1,75 @@ +/* + * 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.das.provider; + +import org.apache.tuscany.das.rdb.DAS; +import org.apache.tuscany.sca.data.engine.DataAccessEngine; +import org.apache.tuscany.sca.data.engine.DataAccessEngineManager; +import org.apache.tuscany.sca.implementation.das.DASImplementation; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * DAS Implementation provider + * + * @version $Rev$ $Date$ + */ +public class DASImplementationProvider implements ImplementationProvider { + + private RuntimeComponent component; + private DASImplementation implementation; + private final DataAccessEngineManager dataAccessEngineManager; + + /** + * Constructs a new DAS implementation. + */ + public DASImplementationProvider(RuntimeComponent component, DASImplementation implementation) { + this.component = component; + this.implementation = implementation; + this.dataAccessEngineManager = new DataAccessEngineManager(); + } + + public Invoker createInvoker(RuntimeComponentService service, Operation operation) { + DAS das = null; + try { + das = dataAccessEngineManager.getDAS(implementation.getConfig(), implementation.getConnectionInfo()); + } catch(Exception e) { + e.printStackTrace(); + //what now ? + } + DASInvoker invoker = new DASInvoker(operation, new DataAccessEngine(das) ); + return invoker; + } + + public boolean supportsOneWayInvocation() { + return false; + } + + public void start() { + System.out.println("Starting " + component.getName()); + } + + public void stop() { + System.out.println("Stopping " + component.getName()); + } + +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASImplementationProviderFactory.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASImplementationProviderFactory.java new file mode 100644 index 0000000000..3ce182347c --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASImplementationProviderFactory.java @@ -0,0 +1,47 @@ +/* + * 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.das.provider; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.implementation.das.DASImplementation; +import org.apache.tuscany.sca.provider.ImplementationProvider; +import org.apache.tuscany.sca.provider.ImplementationProviderFactory; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * Factory for DAS Implementation Provider + * + * @version $Rev$ $Date$ + */ +public class DASImplementationProviderFactory implements ImplementationProviderFactory<DASImplementation> { + + /** + * Constructs a new DAS implementation. + */ + public DASImplementationProviderFactory(ExtensionPointRegistry extensionPoints) { + } + + public ImplementationProvider createImplementationProvider(RuntimeComponent component, DASImplementation implementation) { + return new DASImplementationProvider(component, implementation); + } + + public Class<DASImplementation> getModelType() { + return DASImplementation.class; + } +} diff --git a/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java new file mode 100644 index 0000000000..4cd227717c --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java @@ -0,0 +1,87 @@ +/* + * 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.das.provider; + +import java.lang.reflect.InvocationTargetException; + +import org.apache.tuscany.sca.data.engine.DataAccessEngine; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; + + +/** + * Implements a target invoker for DAS component implementations. + * + * The target invoker is responsible for dispatching invocations to the particular + * component implementation logic. The current component implementation will + * dispatch calls to the DAS APIs to retrieve the requested data from the back-end store + * + * @version $Rev$ $Date$ + */ +public class DASInvoker implements Invoker { + private final Operation operation; + private final DataAccessEngine dataAccessEngine; + + public DASInvoker(Operation operation, DataAccessEngine dataAccessEngine) { + this.operation = operation; + this.dataAccessEngine = dataAccessEngine; + } + + public Message invoke(Message msg) { + try { + Object[] args = msg.getBody(); + Object resp = doTheWork(args); + msg.setBody(resp); + } catch (InvocationTargetException e) { + msg.setFaultBody(e.getCause()); + } + return msg; + } + + public Object doTheWork(Object[] args) throws InvocationTargetException { + //check annotation +// try { +// Method methodDeclaration = this.getClass().getMethod(operation.getName(), null); +// methodDeclaration.getAnnotation(org.apache.tuscany.sca.implementation.das.annotations.Command.class); +// } catch (Exception e) { +// //ignore +// } + + //check if static way + if (operation.getName().equals("executeCommand")) { + String commandName, xPath; + + //simple execute command by name + if( args.length == 1){ + commandName = (String) args[0]; + return this.dataAccessEngine.executeCommand(commandName); + } else { + commandName = (String) args[0]; + xPath = (String) args[1]; + + return this.dataAccessEngine.executeCommand(commandName, xPath); + } + } else { // dynamic mapping to command + + return this.dataAccessEngine.executeCommand(operation.getName()); + } + } +} |