de.itsvs.cwtrpc.controller.config.RemoteServiceGroupConfigBeanDefinitionParser.java Source code

Introduction

Here is the source code for de.itsvs.cwtrpc.controller.config.RemoteServiceGroupConfigBeanDefinitionParser.java

Source

/*
 *  Copyright 2011 IT Services VS GmbH
 *
 *  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 de.itsvs.cwtrpc.controller.config;

import org.springframework.beans.BeanMetadataElement;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
import org.w3c.dom.Element;

import de.itsvs.cwtrpc.controller.RemoteServiceConfig;
import de.itsvs.cwtrpc.controller.RemoteServiceGroupConfig;

/**
 * @author Volker Schmidt
 * @since 0.9
 */
public class RemoteServiceGroupConfigBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {
    private final BaseServiceConfigParser baseServiceConfigParser;

    private final AutowiredRemoteServiceGroupConfigBeanDefinitionParser autowiredServiceGroupConfigBeanDefinitionParser;

    public RemoteServiceGroupConfigBeanDefinitionParser(BaseServiceConfigParser baseServiceConfigParser,
            AutowiredRemoteServiceGroupConfigBeanDefinitionParser autowiredServiceGroupConfigBeanDefinitionParser) {
        this.baseServiceConfigParser = baseServiceConfigParser;
        this.autowiredServiceGroupConfigBeanDefinitionParser = autowiredServiceGroupConfigBeanDefinitionParser;
    }

    public BaseServiceConfigParser getBaseServiceConfigParser() {
        return baseServiceConfigParser;
    }

    public AutowiredRemoteServiceGroupConfigBeanDefinitionParser getAutowiredServiceGroupConfigBeanDefinitionParser() {
        return autowiredServiceGroupConfigBeanDefinitionParser;
    }

    public AbstractBeanDefinition parseNested(Element element, ParserContext parserContext) {
        return parseInternal(element, parserContext);
    }

    @SuppressWarnings("rawtypes")
    @Override
    protected Class getBeanClass(Element element) {
        return RemoteServiceGroupConfig.class;
    }

    @Override
    protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
        final ManagedList<BeanMetadataElement> serviceConfigs;
        final ManagedList<BeanMetadataElement> childGroupConfigs;

        getBaseServiceConfigParser().update(element, parserContext, builder);

        serviceConfigs = new ManagedList<BeanMetadataElement>();
        for (Element child : DomUtils.getChildElementsByTagName(element, XmlNames.SERVICE_ELEMENT)) {
            serviceConfigs.add(createServiceConfigBeanDefinition(child, parserContext));
        }
        childGroupConfigs = new ManagedList<BeanMetadataElement>();
        for (Element child : DomUtils.getChildElementsByTagName(element, XmlNames.SERVICE_GROUP_ELEMENT)) {
            childGroupConfigs.add(parseNested(child, parserContext));
        }
        for (Element child : DomUtils.getChildElementsByTagName(element, XmlNames.SERVICE_GROUP_REF_ELEMENT)) {
            final String name;
            final RuntimeBeanReference beanReference;

            name = child.getAttribute(XmlNames.BEAN_REFERENCE_NAME_ATTR);
            if (!StringUtils.hasText(name)) {
                parserContext.getReaderContext().error("Module reference must not be empty",
                        parserContext.extractSource(element));
            }
            beanReference = new RuntimeBeanReference(name);
            beanReference.setSource(parserContext.extractSource(element));
            childGroupConfigs.add(beanReference);
        }
        for (Element child : DomUtils.getChildElementsByTagName(element,
                XmlNames.AUTOWIRED_SERVICE_GROUP_ELEMENT)) {
            childGroupConfigs
                    .add(getAutowiredServiceGroupConfigBeanDefinitionParser().parseNested(child, parserContext));
        }

        builder.addConstructorArgValue(serviceConfigs);
        builder.addConstructorArgValue(childGroupConfigs);
    }

    protected AbstractBeanDefinition createServiceConfigBeanDefinition(Element element,
            ParserContext parserContext) {
        final String serviceName;
        final BeanDefinitionBuilder bdd;
        final String relativePath;

        serviceName = element.getAttribute(XmlNames.SERVICE_REF_ATTR);
        if (!StringUtils.hasText(serviceName)) {
            parserContext.getReaderContext().error("Service reference must not be empty",
                    parserContext.extractSource(element));
        }

        bdd = BeanDefinitionBuilder.rootBeanDefinition(RemoteServiceConfig.class);
        if (parserContext.isDefaultLazyInit()) {
            bdd.setLazyInit(true);
        }
        bdd.getRawBeanDefinition().setSource(parserContext.extractSource(element));
        bdd.addConstructorArgValue(serviceName);

        if (element.hasAttribute(XmlNames.SERVICE_INTERFACE_ATTR)) {
            bdd.addPropertyValue("serviceInterface", element.getAttribute(XmlNames.SERVICE_INTERFACE_ATTR));
        }

        if (element.hasAttribute(XmlNames.RELATIVE_PATH_ATTR)) {
            relativePath = element.getAttribute(XmlNames.RELATIVE_PATH_ATTR);
            if (!StringUtils.hasText(relativePath)) {
                parserContext.getReaderContext().error("Relative path must not be empty",
                        parserContext.extractSource(element));
            }
            bdd.addPropertyValue("relativePath", relativePath);
        }

        getBaseServiceConfigParser().update(element, parserContext, bdd);

        return bdd.getBeanDefinition();
    }
}