camel-optaplanner: production code + unit test

components/camel-optaplanner/pom.xml

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+<?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/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.apache.camel</groupId>
+        <artifactId>components</artifactId>
+        <version>2.13-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>camel-optaplanner</artifactId>
+    <packaging>bundle</packaging>
+    <name>Camel :: OptaPlanner</name>
+    <description>Camel OptaPlanner support</description>
+
+    <properties>
+        <camel.osgi.export.pkg>org.apache.camel.component.optaplanner.*</camel.osgi.export.pkg>
+        <camel.osgi.export.service>org.apache.camel.spi.ComponentResolver;component=optaplanner</camel.osgi.export.service>
+    </properties>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.optaplanner</groupId>
+            <artifactId>optaplanner-core</artifactId>
+        </dependency>
+
+        <!-- testing -->
+        <dependency>
+            <groupId>org.optaplanner</groupId>
+            <artifactId>optaplanner-examples</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.camel</groupId>
+            <artifactId>camel-test-spring</artifactId>
+            <scope>test</scope>
+        </dependency>      
+        <dependency>
+          <groupId>org.slf4j</groupId>
+          <artifactId>slf4j-log4j12</artifactId>
+          <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+</project>

components/camel-optaplanner/src/main/java/org/apache/camel/component/optaplanner/OptaPlannerComponent.java

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+/**
+ * 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.optaplanner;
+
+import java.net.URL;
+import java.util.Map;
+
+import org.apache.camel.Endpoint;
+import org.apache.camel.impl.DefaultComponent;
+import org.apache.camel.util.ObjectHelper;
+import org.apache.camel.util.ResourceHelper;
+import org.optaplanner.core.api.solver.SolverFactory;
+import org.optaplanner.core.config.solver.XmlSolverFactory;
+
+/**
+ * OptaPlanner component for Camel
+ */
+public class OptaPlannerComponent extends DefaultComponent {
+
+    protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
+        SolverFactory solverFactory = new XmlSolverFactory(remaining);
+        OptaPlannerEndpoint endpoint = new OptaPlannerEndpoint(uri, this, remaining);
+        endpoint.setSolverFactory(solverFactory);
+        return endpoint;
+    }
+
+}

components/camel-optaplanner/src/main/java/org/apache/camel/component/optaplanner/OptaPlannerEndpoint.java

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+/**
+ * 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.optaplanner;
+
+import java.io.Reader;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.util.Map;
+
+import org.apache.camel.Component;
+import org.apache.camel.Exchange;
+import org.apache.camel.ExchangePattern;
+import org.apache.camel.Message;
+import org.apache.camel.component.ResourceEndpoint;
+import org.apache.camel.util.ExchangeHelper;
+import org.apache.camel.util.ObjectHelper;
+import org.optaplanner.core.api.solver.Solver;
+import org.optaplanner.core.api.solver.SolverFactory;
+import org.optaplanner.core.impl.solution.Solution;
+
+/**
+ * OptaPlanner endpoint for Camel
+ */
+public class OptaPlannerEndpoint extends ResourceEndpoint {
+
+    private SolverFactory solverFactory;
+
+    public OptaPlannerEndpoint() {
+    }
+
+    public OptaPlannerEndpoint(String uri, Component component, String resourceUri) {
+        super(uri, component, resourceUri);
+    }
+
+    public SolverFactory getSolverFactory() {
+        return solverFactory;
+    }
+
+    public void setSolverFactory(SolverFactory solverFactory) {
+        this.solverFactory = solverFactory;
+    }
+
+    @Override
+    public boolean isSingleton() {
+        return true;
+    }
+
+    @Override
+    public ExchangePattern getExchangePattern() {
+        return ExchangePattern.InOut;
+    }
+
+    @Override
+    protected String createEndpointUri() {
+        return "optaplanner:" + getResourceUri();
+    }
+
+    @Override
+    protected void onExchange(Exchange exchange) throws Exception {
+        ObjectHelper.notNull(solverFactory, "solverFactory");
+        Solver solver = solverFactory.buildSolver();
+
+        Object bodyObject = exchange.getIn().getBody();
+        Solution planningProblem = ObjectHelper.cast(Solution.class, bodyObject);
+
+        solver.setPlanningProblem(planningProblem);
+        solver.solve();
+        Solution bestSolution = solver.getBestSolution();
+
+        exchange.getOut().setBody(bestSolution);
+    }
+
+}