annotationsvalidatorimpl.java

Xfire文件 用于开发web service 的一个开源工具 很好用的

package org.codehaus.xfire.annotations;

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

/**
 * @author <a href="mailto:[e-mail]">Tomasz Sztelak</a>
 * 
 */
public class AnnotationsValidatorImpl implements AnnotationsValidator {

	private WebAnnotations annotations;

	protected void validateClass(Class clazz) throws AnnotationException {
		WebServiceAnnotation webAnn = annotations
				.getWebServiceAnnotation(clazz);
		if (webAnn.getPortName() != null && webAnn.getPortName().length() > 0
				&& clazz.isInterface()) {
			throwException("Port name can't be defined on interface", "4.1.1", "Class : "+clazz.getName());
		}

		if (webAnn.getEndpointInterface() != null
				&& webAnn.getEndpointInterface().length() > 0
				&& clazz.isInterface()) {
			throwException("EndpointInterface can't be defined on interface",
					"4.1.1", " Class : "+clazz.getName());
		}

		Method[] methods = clazz.getMethods();
		for (int m = 0; m < methods.length; m++) {
			Method method = methods[m];
			if (annotations.hasWebMethodAnnotation(method)) {
				validateMethod(method);
			}
		}

	}

	protected void validateOneWay(Method method) throws AnnotationException {

		if (method.getExceptionTypes().length > 0
				|| !method.getGenericReturnType().equals(void.class)) {
			throwException(
					"Method annotated with @OneWay annotation cannot  have return value or declarated exceptions",
					"4.3.1","Method : "+ method.getName());
		}
		for (int p = 0; p < method.getParameterTypes().length; p++) {
			WebParamAnnotation param = annotations.getWebParamAnnotation(
					method, p);
			if (param != null
					&& (param.getMode() == WebParamAnnotation.MODE_INOUT || param
							.getMode() == WebParamAnnotation.MODE_OUT)) {
				throwException(
						"Method annotated with @OneWay annotation cannot have INOUT/OUT parameters",
						"4.3.1", "Method : "+ method.getName());
			}
		}

	}

	protected void validateMethod(Method method) throws AnnotationException {

		if (!Modifier.isPublic(method.getModifiers())) {
			throwException("Method annotated with @WebMethod must be public",
					"3.3", "Method : "+ method.getName());
		}

		if (annotations.hasOnewayAnnotation(method)) {
			validateOneWay(method);
		}

		/*for (int p = 0; p < method.getParameterTypes().length; p++) {
			WebParamAnnotation param = annotations.getWebParamAnnotation(
					method, p);
			if (param != null
					&& (param.getMode() == WebParamAnnotation.MODE_INOUT || param
							.getMode() == WebParamAnnotation.MODE_OUT)
					&& !param.isHeader()) {
				throwException(
						"Parameters with mode INOUT/OUT must be marked as header=true",
						"4.4.1","Method : "+ method.getName());
			}
		}*/

	}

	public void validate(WebAnnotations annotations, Class clazz)
			throws AnnotationException {
		this.annotations = annotations;
		validateClass(clazz);

	}

	private void throwException(String message, String spec, String details)
			throws AnnotationException {
		throw new AnnotationException(message + ". JSR181 spec : " + spec + ". "+ details);
	}
}