Migrated RMI adapter and parser code from "org.springframework.integration.adapter" to the new "org.springframework.integration.rmi" module, and added a dedicated spring-integration-rmi-1.0.xsd schema and RmiNamespaceHandler.
This commit is contained in:
Mark Fisher
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/*
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* Copyright 2002-2008 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.rmi;
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import java.rmi.RemoteException;
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import java.rmi.registry.Registry;
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import org.springframework.beans.factory.InitializingBean;
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import org.springframework.integration.adapter.AbstractRemotingGateway;
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import org.springframework.integration.channel.MessageChannel;
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import org.springframework.integration.handler.MessageHandler;
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import org.springframework.remoting.rmi.RmiServiceExporter;
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import org.springframework.remoting.support.RemoteInvocationExecutor;
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import org.springframework.util.Assert;
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import org.springframework.util.StringUtils;
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/**
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* A gateway adapter for RMI-based remoting.
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*
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* @author Mark Fisher
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*/
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public class RmiGateway extends AbstractRemotingGateway implements InitializingBean, MessageHandler {
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public static final String SERVICE_NAME_PREFIX = "org.springframewok.integration.rmiGateway.";
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private final String requestChannelName;
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private volatile String registryHost;
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private volatile int registryPort = Registry.REGISTRY_PORT;
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private volatile RemoteInvocationExecutor remoteInvocationExecutor;
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/**
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* Create an RmiGateway that sends to the provided request channel.
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*
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* @param requestChannel the channel where messages will be sent, must not be
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* <code>null</code>.
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*/
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public RmiGateway(MessageChannel requestChannel) {
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super(requestChannel);
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this.requestChannelName = requestChannel.getName();
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Assert.isTrue(StringUtils.hasText(this.requestChannelName), "RmiGateway's request channel must have a name.");
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}
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public void setRegistryHost(String registryHost) {
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this.registryHost = registryHost;
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}
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public void setRegistryPort(int registryPort) {
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this.registryPort = registryPort;
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}
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public void setRemoteInvocationExecutor(RemoteInvocationExecutor remoteInvocationExecutor) {
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this.remoteInvocationExecutor = remoteInvocationExecutor;
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}
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public void afterPropertiesSet() throws RemoteException {
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RmiServiceExporter exporter = new RmiServiceExporter();
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if (this.registryHost != null) {
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exporter.setRegistryHost(this.registryHost);
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}
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exporter.setRegistryPort(this.registryPort);
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if (this.remoteInvocationExecutor != null) {
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exporter.setRemoteInvocationExecutor(this.remoteInvocationExecutor);
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}
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exporter.setService(this);
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exporter.setServiceInterface(MessageHandler.class);
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exporter.setServiceName(SERVICE_NAME_PREFIX + this.requestChannelName);
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exporter.afterPropertiesSet();
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}
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}
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@@ -0,0 +1,46 @@
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/*
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* Copyright 2002-2008 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.rmi;
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import org.springframework.integration.adapter.AbstractRemotingHandler;
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import org.springframework.integration.handler.MessageHandler;
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import org.springframework.remoting.rmi.RmiProxyFactoryBean;
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/**
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* A MessageHandler adapter for RMI-based remoting.
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*
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* @author Mark Fisher
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*/
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public class RmiHandler extends AbstractRemotingHandler {
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public RmiHandler(String url) {
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super(url);
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}
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@Override
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public MessageHandler createHandlerProxy(String url) {
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RmiProxyFactoryBean proxyFactory = new RmiProxyFactoryBean();
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proxyFactory.setServiceInterface(MessageHandler.class);
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proxyFactory.setServiceUrl(url);
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proxyFactory.setLookupStubOnStartup(false);
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proxyFactory.setRefreshStubOnConnectFailure(true);
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proxyFactory.afterPropertiesSet();
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return (MessageHandler) proxyFactory.getObject();
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}
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}
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@@ -0,0 +1,55 @@
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/*
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* Copyright 2002-2008 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.rmi.config;
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import org.w3c.dom.Element;
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import org.springframework.beans.factory.support.BeanDefinitionBuilder;
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import org.springframework.integration.adapter.config.AbstractRemotingGatewayParser;
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import org.springframework.integration.rmi.RmiGateway;
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import org.springframework.util.StringUtils;
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/**
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* Parser for the <rmi-gateway/> element.
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*
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* @author Mark Fisher
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*/
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public class RmiGatewayParser extends AbstractRemotingGatewayParser {
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private static final String REMOTE_INVOCATION_EXECUTOR_ATTRIBUTE = "remote-invocation-executor";
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@Override
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protected Class<?> getBeanClass(Element element) {
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return RmiGateway.class;
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}
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@Override
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protected boolean isEligibleAttribute(String attributeName) {
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return !attributeName.equals(REMOTE_INVOCATION_EXECUTOR_ATTRIBUTE)
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&& super.isEligibleAttribute(attributeName);
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}
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@Override
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protected void doPostProcess(BeanDefinitionBuilder builder, Element element) {
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String executorRef = element.getAttribute(REMOTE_INVOCATION_EXECUTOR_ATTRIBUTE);
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if (StringUtils.hasText(executorRef)) {
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builder.addPropertyReference("remoteInvocationExecutor", executorRef);
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}
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}
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}
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@@ -0,0 +1,65 @@
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/*
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* Copyright 2002-2008 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.rmi.config;
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import java.rmi.registry.Registry;
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import org.w3c.dom.Element;
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import org.springframework.beans.factory.support.BeanDefinitionBuilder;
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import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
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import org.springframework.integration.ConfigurationException;
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import org.springframework.integration.rmi.RmiGateway;
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import org.springframework.integration.rmi.RmiHandler;
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import org.springframework.util.StringUtils;
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/**
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* Parser for the <rmi-handler/> element.
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*
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* @author Mark Fisher
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*/
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public class RmiHandlerParser extends AbstractSingleBeanDefinitionParser {
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@Override
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protected Class<?> getBeanClass(Element element) {
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return RmiHandler.class;
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}
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@Override
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protected boolean shouldGenerateId() {
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return false;
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}
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@Override
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protected boolean shouldGenerateIdAsFallback() {
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return true;
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}
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@Override
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protected void doParse(Element element, BeanDefinitionBuilder builder) {
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String host = element.getAttribute("host");
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String remoteChannel = element.getAttribute("remote-channel");
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if (!(StringUtils.hasText(host) && StringUtils.hasText(remoteChannel))) {
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throw new ConfigurationException("The 'host' and 'remote-channel' attributes are both required");
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}
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String portAttribute = element.getAttribute("port");
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String port = StringUtils.hasText(portAttribute) ? portAttribute : "" + Registry.REGISTRY_PORT;
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String url = "rmi://" + host + ":" + port + "/" + RmiGateway.SERVICE_NAME_PREFIX + remoteChannel;
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builder.addConstructorArgValue(url);
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}
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}
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@@ -0,0 +1,33 @@
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/*
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* Copyright 2002-2008 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.rmi.config;
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import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
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/**
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* Namespace handler for Spring Integration's <em>rmi</em> namespace.
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*
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* @author Mark Fisher
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*/
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public class RmiNamespaceHandler extends NamespaceHandlerSupport {
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public void init() {
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this.registerBeanDefinitionParser("rmi-gateway", new RmiGatewayParser());
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this.registerBeanDefinitionParser("rmi-handler", new RmiHandlerParser());
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}
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}
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<?xml version="1.0" encoding="UTF-8"?>
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<xsd:schema xmlns="http://www.springframework.org/schema/integration/rmi"
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xmlns:xsd="http://www.w3.org/2001/XMLSchema"
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xmlns:beans="http://www.springframework.org/schema/beans"
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xmlns:tool="http://www.springframework.org/schema/tool"
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targetNamespace="http://www.springframework.org/schema/integration/rmi"
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elementFormDefault="qualified"
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attributeFormDefault="unqualified">
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<xsd:import namespace="http://www.springframework.org/schema/beans"/>
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<xsd:import namespace="http://www.springframework.org/schema/tool"/>
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<xsd:annotation>
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<xsd:documentation><![CDATA[
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Defines the configuration elements for Spring Integration's RMI adapters.
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]]></xsd:documentation>
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</xsd:annotation>
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<xsd:element name="rmi-gateway">
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<xsd:complexType>
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<xsd:annotation>
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<xsd:documentation>
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Defines an RMI-based gateway adapter.
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</xsd:documentation>
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</xsd:annotation>
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<xsd:attribute name="id" type="xsd:ID"/>
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<xsd:attribute name="name" type="xsd:string"/>
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<xsd:attribute name="expect-reply" type="xsd:boolean" default="true"/>
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<xsd:attribute name="request-channel" type="xsd:string" use="required"/>
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<xsd:attribute name="reply-channel" type="xsd:string"/>
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<xsd:attribute name="request-timeout" type="xsd:long"/>
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<xsd:attribute name="reply-timeout" type="xsd:long"/>
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<xsd:attribute name="registry-host" type="xsd:string"/>
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<xsd:attribute name="registry-port" type="xsd:integer"/>
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<xsd:attribute name="remote-invocation-executor" type="xsd:string"/>
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</xsd:complexType>
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</xsd:element>
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<xsd:element name="rmi-handler">
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<xsd:complexType>
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<xsd:annotation>
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<xsd:documentation>
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Defines an RMI-based MessageHandler adapter.
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</xsd:documentation>
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</xsd:annotation>
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<xsd:attribute name="id" type="xsd:string"/>
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<xsd:attribute name="host" type="xsd:string" use="required"/>
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<xsd:attribute name="port" type="xsd:integer"/>
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<xsd:attribute name="remote-channel" type="xsd:string" use="required"/>
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</xsd:complexType>
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</xsd:element>
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</xsd:schema>
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@@ -0,0 +1 @@
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http\://www.springframework.org/schema/integration/rmi=org.springframework.integration.rmi.config.RmiNamespaceHandler
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@@ -0,0 +1 @@
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http\://www.springframework.org/schema/integration/rmi/spring-integration-rmi-1.0.xsd=org/springframework/integration/rmi/config/spring-integration-rmi-1.0.xsd
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