diff options
Diffstat (limited to 'sca-java-1.x/tags/java-M1-20060522/java/sca/core/src/main/java/org/apache/tuscany/core/config/processor/ReferenceProcessor.java')
-rw-r--r-- | sca-java-1.x/tags/java-M1-20060522/java/sca/core/src/main/java/org/apache/tuscany/core/config/processor/ReferenceProcessor.java | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-20060522/java/sca/core/src/main/java/org/apache/tuscany/core/config/processor/ReferenceProcessor.java b/sca-java-1.x/tags/java-M1-20060522/java/sca/core/src/main/java/org/apache/tuscany/core/config/processor/ReferenceProcessor.java new file mode 100644 index 0000000000..007410b500 --- /dev/null +++ b/sca-java-1.x/tags/java-M1-20060522/java/sca/core/src/main/java/org/apache/tuscany/core/config/processor/ReferenceProcessor.java @@ -0,0 +1,119 @@ +/** + * + * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. + * + * Licensed 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.core.config.processor; + +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.lang.reflect.Modifier; +import java.util.Collection; + +import org.apache.tuscany.core.config.ConfigurationLoadException; +import org.apache.tuscany.core.config.InvalidSetterException; +import org.apache.tuscany.core.config.JavaIntrospectionHelper; +import org.apache.tuscany.model.assembly.AssemblyFactory; +import org.apache.tuscany.model.assembly.ComponentType; +import org.apache.tuscany.model.assembly.Multiplicity; +import org.apache.tuscany.model.assembly.Reference; +import org.apache.tuscany.model.assembly.ServiceContract; +import org.osoa.sca.annotations.Scope; + +/** + * Processes the {@link org.osoa.sca.annotations.Reference} annotation + * + * @version $$Rev$$ $$Date$$ + */ +@Scope("MODULE") +public class ReferenceProcessor extends ImplementationProcessorSupport { + + public ReferenceProcessor() { + } + + public ReferenceProcessor(AssemblyFactory factory) { + super(factory); + } + + @Override + public void visitMethod(Method method, ComponentType type) throws ConfigurationLoadException { + if(method.getDeclaringClass().equals(Object.class)){ + return; + } + int modifiers = method.getModifiers(); + org.osoa.sca.annotations.Reference annotation = method.getAnnotation(org.osoa.sca.annotations.Reference.class); + if (annotation != null) { + if (!Modifier.isPublic(modifiers)) { + InvalidSetterException e = new InvalidSetterException("Reference setter method is not public"); + e.setIdentifier(method.getName()); + throw e; + } + if (!Void.TYPE.equals(method.getReturnType())) { + InvalidSetterException e = new InvalidSetterException("Refence setter method must return void"); + e.setIdentifier(method.toString()); + throw e; + } + Class<?>[] params = method.getParameterTypes(); + if (params.length != 1) { + InvalidSetterException e = new InvalidSetterException("Reference setter method must have one parameter"); + e.setIdentifier(method.toString()); + throw e; + } + String name = annotation.name(); + if (name.length() == 0) { + name = method.getName(); + if (name.length() > 3 && name.startsWith("set")) { + // follow JavaBeans conventions + name = JavaIntrospectionHelper.toPropertyName(name); + } + } + addReference(name, params[0], annotation.required(), type); + } + } + + @Override + public void visitField(Field field, ComponentType type) throws ConfigurationLoadException { + if(field.getDeclaringClass().equals(Object.class)){ + return; + } + int modifiers = field.getModifiers(); + org.osoa.sca.annotations.Reference annotation = field.getAnnotation(org.osoa.sca.annotations.Reference.class); + if (annotation != null) { + if (!Modifier.isPublic(modifiers) && !Modifier.isProtected(modifiers)) { + InvalidSetterException e = new InvalidSetterException("Reference field is not public or protected"); + e.setIdentifier(field.getName()); + throw e; + } + String name = annotation.name(); + if (name.length() == 0) { + name = field.getName(); + } + addReference(name, field.getType(), annotation.required(), type); + } + } + + private void addReference(String name, Class<?> paramType, boolean required, ComponentType type) { + Reference reference = factory.createReference(); + reference.setName(name); + ServiceContract contract = factory.createJavaServiceContract(); + contract.setInterface(paramType); + reference.setServiceContract(contract); + boolean many = paramType.isArray() || Collection.class.isAssignableFrom(paramType); + Multiplicity multiplicity; + if (required) + multiplicity = many ? Multiplicity.ONE_N : Multiplicity.ONE_ONE; + else + multiplicity = many ? Multiplicity.ZERO_N : Multiplicity.ZERO_ONE; + reference.setMultiplicity(multiplicity); + type.getReferences().add(reference); + } + +} |