Author: jstrachan Date: Thu Feb 10 16:02:09 2011 New Revision: 1069442 URL: http://svn.apache.org/viewvc?rev=1069442&view=rev Log: first spike of a solution for CAMEL-3651 and CAMEL-3563 so that we can turn a CamelContext containing one or more routes into a black box and then refer to its 'public endpoints' using global URIs which then map to local internal endpoints inside the CamelContext
Added: camel/trunk/components/camel-context/ camel/trunk/components/camel-context/pom.xml camel/trunk/components/camel-context/src/ camel/trunk/components/camel-context/src/main/ camel/trunk/components/camel-context/src/main/java/ camel/trunk/components/camel-context/src/main/java/org/ camel/trunk/components/camel-context/src/main/java/org/apache/ camel/trunk/components/camel-context/src/main/java/org/apache/camel/ camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/ camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/ camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/ContextConverters.java camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/LocalContextComponent.java camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/QualifiedContextComponent.java camel/trunk/components/camel-context/src/main/resources/ camel/trunk/components/camel-context/src/main/resources/META-INF/ camel/trunk/components/camel-context/src/main/resources/META-INF/LICENSE.txt camel/trunk/components/camel-context/src/main/resources/META-INF/NOTICE.txt camel/trunk/components/camel-context/src/main/resources/META-INF/services/ camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/ camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/ camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/ camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/TypeConverter camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/component/ camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/component/context camel/trunk/components/camel-context/src/test/ camel/trunk/components/camel-context/src/test/java/ camel/trunk/components/camel-context/src/test/java/org/ camel/trunk/components/camel-context/src/test/java/org/apache/ camel/trunk/components/camel-context/src/test/java/org/apache/camel/ camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/ camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/ camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxTest.java camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxWithVerboseUriTest.java camel/trunk/components/camel-context/src/test/resources/ camel/trunk/components/camel-context/src/test/resources/log4j.properties Modified: camel/trunk/components/pom.xml Added: camel/trunk/components/camel-context/pom.xml URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/pom.xml?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/pom.xml (added) +++ camel/trunk/components/camel-context/pom.xml Thu Feb 10 16:02:09 2011 @@ -0,0 +1,86 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!-- + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You 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. +--> +<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> + + <modelVersion>4.0.0</modelVersion> + + <parent> + <artifactId>camel-parent</artifactId> + <groupId>org.apache.camel</groupId> + <version>2.7-SNAPSHOT</version> + <relativePath>../../parent</relativePath> + </parent> + + <artifactId>camel-context</artifactId> + <name>Camel :: Context </name> + <description>Camel Context component to expose CamelContext objects as a black box Component for use in other routes</description> + <packaging>bundle</packaging> + + <properties> + <camel.osgi.export.pkg> + org.apache.camel.component.context.*, + </camel.osgi.export.pkg> + </properties> + + <dependencies> + <dependency> + <groupId>org.apache.camel</groupId> + <artifactId>camel-core</artifactId> + </dependency> + + <!-- testing --> + <dependency> + <groupId>org.apache.camel</groupId> + <artifactId>camel-core-xml</artifactId> + <scope>test</scope> + </dependency> + <dependency> + <groupId>org.apache.camel</groupId> + <artifactId>camel-spring</artifactId> + <scope>test</scope> + </dependency> + <dependency> + <groupId>org.apache.camel</groupId> + <artifactId>camel-test</artifactId> + <scope>test</scope> + </dependency> + <dependency> + <groupId>junit</groupId> + <artifactId>junit</artifactId> + <scope>test</scope> + </dependency> + <dependency> + <groupId>org.springframework</groupId> + <artifactId>spring-test</artifactId> + <scope>test</scope> + </dependency> + + <!-- logging --> + <dependency> + <groupId>org.slf4j</groupId> + <artifactId>slf4j-log4j12</artifactId> + <scope>test</scope> + </dependency> + <dependency> + <groupId>log4j</groupId> + <artifactId>log4j</artifactId> + <scope>test</scope> + </dependency> + </dependencies> + +</project> Added: camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/ContextConverters.java URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/ContextConverters.java?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/ContextConverters.java (added) +++ camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/ContextConverters.java Thu Feb 10 16:02:09 2011 @@ -0,0 +1,33 @@ +/** + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.camel.component.context; + +import org.apache.camel.CamelContext; +import org.apache.camel.Converter; + +/** + * Converts from a CamelContext to a ContextComponent so we can easily refer to external camel contexts in the Registry + * as a Component + */ +@Converter +public class ContextConverters { + @Converter + public static LocalContextComponent toComponent(CamelContext localContext) { + return new LocalContextComponent(localContext); + } +} Added: camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/LocalContextComponent.java URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/LocalContextComponent.java?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/LocalContextComponent.java (added) +++ camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/LocalContextComponent.java Thu Feb 10 16:02:09 2011 @@ -0,0 +1,100 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.camel.component.context; + +import org.apache.camel.CamelContext; +import org.apache.camel.Endpoint; +import org.apache.camel.NoSuchEndpointException; +import org.apache.camel.impl.DefaultComponent; +import org.apache.camel.util.ObjectHelper; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.Map; + +/** + * A Camel Component which exposes a local {@link CamelContext} instance as a black box set of endpoints. + */ +public class LocalContextComponent extends DefaultComponent { + private static final transient Logger LOG = LoggerFactory.getLogger(LocalContextComponent.class); + + private CamelContext localCamelContext; + private List<String> localProtocolSchemes = new ArrayList<String>(Arrays.asList("direct", "seda")); + + public LocalContextComponent(CamelContext localCamelContext) { + ObjectHelper.notNull(localCamelContext, "localCamelContext"); + this.localCamelContext = localCamelContext; + } + + public List<String> getLocalProtocolSchemes() { + return localProtocolSchemes; + } + + /** + * Sets the list of protocols which are used to expose public endpoints by default + */ + public void setLocalProtocolSchemes(List<String> localProtocolSchemes) { + this.localProtocolSchemes = localProtocolSchemes; + } + + public CamelContext getLocalCamelContext() { + if (localCamelContext == null) { + + } + return localCamelContext; + } + + public void setLocalCamelContext(CamelContext localCamelContext) { + this.localCamelContext = localCamelContext; + } + + @Override + protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) + throws Exception { + + // lets first check if we are using a fully qualified name: [context:]contextId:endpointUri + Map<String, Endpoint> map = getLocalCamelContext().getEndpointMap(); + Endpoint endpoint = map.get(remaining); + if (endpoint != null) { + logUsingEndpoint(uri, endpoint); + return endpoint; + } + + // lets look to see if there is an endpoint of name 'remaining' using one of the local endpoints within + // the black box CamelContext + String[] separators = {":", "://"}; + for (String scheme : localProtocolSchemes) { + for (String separator : separators) { + String newUri = scheme + separator + remaining; + endpoint = map.get(newUri); + if (endpoint != null) { + logUsingEndpoint(uri, endpoint); + return endpoint; + } + } + } + return null; + } + + protected void logUsingEndpoint(String uri, Endpoint endpoint) { + LOG.debug("Mapping the URI " + uri + " to local endpoint " + endpoint); + } + +} Added: camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/QualifiedContextComponent.java URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/QualifiedContextComponent.java?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/QualifiedContextComponent.java (added) +++ camel/trunk/components/camel-context/src/main/java/org/apache/camel/component/context/QualifiedContextComponent.java Thu Feb 10 16:02:09 2011 @@ -0,0 +1,52 @@ +/** + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.camel.component.context; + +import org.apache.camel.Component; +import org.apache.camel.Endpoint; +import org.apache.camel.impl.DefaultComponent; +import org.apache.camel.util.ObjectHelper; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.Map; + +/** + * Supports the explicit and verbose URIs of the form <b>context:camelContextId:someEndpoint</b> to access + * a local endpoint inside an external CamelContext. + * <p/> + * Typically there's no need to use this level of verbosity, you can just use <b>camelContextId:someEndpoint</b> + */ +public class QualifiedContextComponent extends DefaultComponent { + private static final transient Logger LOG = LoggerFactory.getLogger(QualifiedContextComponent.class); + + @Override + protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception { + String splitURI[] = ObjectHelper.splitOnCharacter(remaining, ":", 2); + if (splitURI[1] != null) { + String contextId = splitURI[0]; + String localEndpoint = splitURI[1]; + Component component = getCamelContext().getComponent(contextId); + if (component != null) { + LOG.debug("Attempting to create local endpoint: " + localEndpoint + " inside the component: " + component); + return component.createEndpoint(localEndpoint); + } + } + return null; + } +} Added: camel/trunk/components/camel-context/src/main/resources/META-INF/LICENSE.txt URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/main/resources/META-INF/LICENSE.txt?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/main/resources/META-INF/LICENSE.txt (added) +++ camel/trunk/components/camel-context/src/main/resources/META-INF/LICENSE.txt Thu Feb 10 16:02:09 2011 @@ -0,0 +1,203 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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Added: camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/TypeConverter URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/TypeConverter?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/TypeConverter (added) +++ camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/TypeConverter Thu Feb 10 16:02:09 2011 @@ -0,0 +1 @@ +org.apache.camel.component.context \ No newline at end of file Added: camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/component/context URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/component/context?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/component/context (added) +++ camel/trunk/components/camel-context/src/main/resources/META-INF/services/org/apache/camel/component/context Thu Feb 10 16:02:09 2011 @@ -0,0 +1,17 @@ +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. +# The ASF licenses this file to You 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. +# + +class=org.apache.camel.component.context.QualifiedContextComponent Added: camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxTest.java URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxTest.java?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxTest.java (added) +++ camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxTest.java Thu Feb 10 16:02:09 2011 @@ -0,0 +1,85 @@ +/** + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.camel.component.context; + +import org.apache.camel.CamelContext; +import org.apache.camel.EndpointInject; +import org.apache.camel.Produce; +import org.apache.camel.ProducerTemplate; +import org.apache.camel.builder.RouteBuilder; +import org.apache.camel.component.mock.MockEndpoint; +import org.apache.camel.impl.DefaultCamelContext; +import org.apache.camel.impl.JndiRegistry; +import org.apache.camel.test.CamelTestSupport; +import org.junit.Test; + +/** + * Lets use the Java DSL to create a black box CamelContext and then test its use from another context + */ +public class JavaDslBlackBoxTest extends CamelTestSupport { + + @EndpointInject(uri = "mock:results") + private MockEndpoint resultEndpoint; + + @Produce(uri = "direct:start") + private ProducerTemplate template; + + @Test + public void testUsingBlackBox() throws Exception { + resultEndpoint.expectedHeaderReceived("received", "true"); + resultEndpoint.expectedMessageCount(2); + + template.sendBody("<purchaseOrder>one</purchaseOrder>"); + template.sendBody("<purchaseOrder>two</purchaseOrder>"); + + assertMockEndpointsSatisfied(); + } + + @Override + protected JndiRegistry createRegistry() throws Exception { + JndiRegistry registry = super.createRegistry(); + + // lets create our black box as a camel context and a set of routes + DefaultCamelContext blackBox = new DefaultCamelContext(registry); + blackBox.setName("blackBox"); + blackBox.addRoutes(new RouteBuilder() { + @Override + public void configure() throws Exception { + // receive purchase orders, lets process it in some way then send an invoice + // to our invoice endpoint + from("direct:purchaseOrder").setHeader("received").constant("true").to("direct:invoice"); + } + }); + blackBox.start(); + + registry.bind("accounts", blackBox); + return registry; + + } + + @Override + protected RouteBuilder createRouteBuilder() throws Exception { + return new RouteBuilder() { + @Override + public void configure() throws Exception { + from("direct:start").to("accounts:purchaseOrder"); + from("accounts:invoice").to("mock:results"); + } + }; + } +} Added: camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxWithVerboseUriTest.java URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxWithVerboseUriTest.java?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxWithVerboseUriTest.java (added) +++ camel/trunk/components/camel-context/src/test/java/org/apache/camel/component/context/JavaDslBlackBoxWithVerboseUriTest.java Thu Feb 10 16:02:09 2011 @@ -0,0 +1,37 @@ +/** + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.camel.component.context; + +import org.apache.camel.builder.RouteBuilder; + +/** + * Lets use the verbose context:camelContextId:actualEndpointName when referring to endpoints + */ +public class JavaDslBlackBoxWithVerboseUriTest extends JavaDslBlackBoxTest { + + + @Override + protected RouteBuilder createRouteBuilder() throws Exception { + return new RouteBuilder() { + @Override + public void configure() throws Exception { + from("direct:start").to("context:accounts:direct://purchaseOrder"); + from("context:accounts:direct://invoice").to("mock:results"); + } + }; + }} Added: camel/trunk/components/camel-context/src/test/resources/log4j.properties URL: http://svn.apache.org/viewvc/camel/trunk/components/camel-context/src/test/resources/log4j.properties?rev=1069442&view=auto ============================================================================== --- camel/trunk/components/camel-context/src/test/resources/log4j.properties (added) +++ camel/trunk/components/camel-context/src/test/resources/log4j.properties Thu Feb 10 16:02:09 2011 @@ -0,0 +1,20 @@ + +# +# The logging properties used for eclipse testing, We want to see debug output on the console. +# +log4j.rootLogger=INFO, file + +log4j.logger.org.springframework=WARN +#log4j.logger.org.apache.camel=DEBUG + +# CONSOLE appender not used by default +log4j.appender.out=org.apache.log4j.ConsoleAppender +log4j.appender.out.layout=org.apache.log4j.PatternLayout +log4j.appender.out.layout.ConversionPattern=[%30.30t] %-30.30c{1} %-5p %m%n +#log4j.appender.out.layout.ConversionPattern=%d [%-15.15t] %-5p %-30.30c{1} - %m%n + +# File appender +log4j.appender.file=org.apache.log4j.FileAppender +log4j.appender.file.layout=org.apache.log4j.PatternLayout +log4j.appender.file.layout.ConversionPattern=%d %-5p %c{1} - %m %n +log4j.appender.file.file=target/camel-routebox.log Modified: camel/trunk/components/pom.xml URL: http://svn.apache.org/viewvc/camel/trunk/components/pom.xml?rev=1069442&r1=1069441&r2=1069442&view=diff ============================================================================== --- camel/trunk/components/pom.xml (original) +++ camel/trunk/components/pom.xml Thu Feb 10 16:02:09 2011 @@ -41,6 +41,7 @@ <module>camel-cometd</module> <module>camel-cache</module> <module>camel-castor</module> + <module>camel-context</module> <module>camel-core-osgi</module> <module>camel-core-xml</module> <module>camel-crypto</module>