org.bytesoft.bytetcc.supports.dubbo.validator.ReferenceConfigValidator.java Source code

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Here is the source code for org.bytesoft.bytetcc.supports.dubbo.validator.ReferenceConfigValidator.java

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/**
 * Copyright 2014-2016 yangming.liu<bytefox@126.com>.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, see <http://www.gnu.org/licenses/>.
 */
package org.bytesoft.bytetcc.supports.dubbo.validator;

import java.lang.reflect.Method;

import org.bytesoft.bytetcc.supports.dubbo.DubboConfigValidator;
import org.bytesoft.compensable.RemotingException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.FatalBeanException;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.PropertyValue;
import org.springframework.beans.factory.config.BeanDefinition;

public class ReferenceConfigValidator implements DubboConfigValidator {
    static final Logger logger = LoggerFactory.getLogger(ReferenceConfigValidator.class);

    private String beanName;
    private BeanDefinition beanDefinition;

    public void validate() throws BeansException {
        MutablePropertyValues mpv = this.beanDefinition.getPropertyValues();
        PropertyValue retries = mpv.getPropertyValue("retries");
        PropertyValue loadbalance = mpv.getPropertyValue("loadbalance");
        PropertyValue cluster = mpv.getPropertyValue("cluster");
        PropertyValue filter = mpv.getPropertyValue("filter");

        if (retries == null || retries.getValue() == null || "0".equals(retries.getValue()) == false) {
            throw new FatalBeanException(
                    String.format("The value of attr 'retries'(beanId= %s) should be '0'.", this.beanName));
        } else if (loadbalance == null || loadbalance.getValue() == null
                || "compensable".equals(loadbalance.getValue()) == false) {
            throw new FatalBeanException(String
                    .format("The value of attr 'loadbalance'(beanId= %s) should be 'compensable'.", this.beanName));
        } else if (cluster == null || cluster.getValue() == null
                || "failfast".equals(cluster.getValue()) == false) {
            throw new FatalBeanException(String
                    .format("The value of attribute 'cluster' (beanId= %s) must be 'failfast'.", this.beanName));
        } else if (filter == null || filter.getValue() == null
                || "compensable".equals(filter.getValue()) == false) {
            throw new FatalBeanException(String
                    .format("The value of attr 'filter'(beanId= %s) should be 'compensable'.", this.beanName));
        }

        PropertyValue pv = mpv.getPropertyValue("interface");
        String clazzName = String.valueOf(pv.getValue());
        ClassLoader cl = Thread.currentThread().getContextClassLoader();

        Class<?> clazz = null;
        try {
            clazz = cl.loadClass(clazzName);
        } catch (Exception ex) {
            throw new FatalBeanException(String.format("Cannot load class %s.", clazzName));
        }

        Method[] methodArray = clazz.getMethods();
        for (int i = 0; i < methodArray.length; i++) {
            Method method = methodArray[i];
            boolean declared = false;
            Class<?>[] exceptionTypeArray = method.getExceptionTypes();
            for (int j = 0; j < exceptionTypeArray.length; j++) {
                Class<?> exceptionType = exceptionTypeArray[j];
                if (RemotingException.class.isAssignableFrom(exceptionType)) {
                    declared = true;
                    break;
                }
            }

            if (declared == false) {
                // throw new FatalBeanException(String.format(
                // "The remote call method(%s) must be declared to throw a remote exception:
                // org.bytesoft.compensable.RemotingException!",
                // method));
                logger.warn("The remote call method({}) should be declared to throw a remote exception: {}!",
                        method, RemotingException.class.getName());
            }

        }

    }

    public String getBeanName() {
        return beanName;
    }

    public void setBeanName(String beanName) {
        this.beanName = beanName;
    }

    public BeanDefinition getBeanDefinition() {
        return beanDefinition;
    }

    public void setBeanDefinition(BeanDefinition beanDefinition) {
        this.beanDefinition = beanDefinition;
    }

}