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applied patch from Gert for JXPath support with thanks : https://issu…
…es.apache.org/activemq/browse/CAMEL-241 I also added the new language into the XSD and DSL git-svn-id: https://svn.apache.org/repos/asf/activemq/camel/trunk@638833 13f79535-47bb-0310-9956-ffa450edef68
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38 changes: 38 additions & 0 deletions
38
camel-core/src/main/java/org/apache/camel/model/language/JXPathExpression.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.model.language; | ||
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| import javax.xml.bind.annotation.XmlRootElement; | ||
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| /** | ||
| * For <a href="http://commons.apache.org/jxpath/">JXPath</a> expresions and predicates | ||
| * | ||
| * @version $Revision$ | ||
| */ | ||
| @XmlRootElement(name = "jxpath") | ||
| public class JXPathExpression extends ExpressionType { | ||
| public JXPathExpression() { | ||
| } | ||
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| public JXPathExpression(String expression) { | ||
| super(expression); | ||
| } | ||
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| public String getLanguage() { | ||
| return "jaxpath"; | ||
| } | ||
| } |
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| <?xml version="1.0" encoding="UTF-8"?> | ||
|
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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. | ||
| --> | ||
|
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| <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd" | ||
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"> | ||
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| <modelVersion>4.0.0</modelVersion> | ||
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| <parent> | ||
| <groupId>org.apache.camel</groupId> | ||
| <artifactId>camel-parent</artifactId> | ||
| <version>1.3-SNAPSHOT</version> | ||
| </parent> | ||
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| <artifactId>camel-jxpath</artifactId> | ||
| <packaging>bundle</packaging> | ||
| <name>Camel :: JXPath</name> | ||
| <description>Camel JXPath support</description> | ||
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| <properties> | ||
| <camel.osgi.export.pkg>org.apache.camel.language.jxpath.*</camel.osgi.export.pkg> | ||
| </properties> | ||
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| <dependencies> | ||
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| <dependency> | ||
| <groupId>org.apache.camel</groupId> | ||
| <artifactId>camel-core</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>commons-jxpath</groupId> | ||
| <artifactId>commons-jxpath</artifactId> | ||
| <version>1.2</version> | ||
| </dependency> | ||
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| <!-- testing --> | ||
| <dependency> | ||
| <groupId>org.apache.camel</groupId> | ||
| <artifactId>camel-core</artifactId> | ||
| <type>test-jar</type> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>commons-logging</groupId> | ||
| <artifactId>commons-logging</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>log4j</groupId> | ||
| <artifactId>log4j</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>junit</groupId> | ||
| <artifactId>junit</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| </dependencies> | ||
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| </project> |
82 changes: 82 additions & 0 deletions
82
components/camel-jxpath/src/main/java/org/apache/camel/language/jxpath/JXPathExpression.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.language.jxpath; | ||
|
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| import org.apache.camel.Exchange; | ||
| import org.apache.camel.Expression; | ||
| import org.apache.camel.impl.ExpressionSupport; | ||
| import org.apache.camel.language.ExpressionEvaluationException; | ||
| import org.apache.commons.jxpath.CompiledExpression; | ||
| import org.apache.commons.jxpath.JXPathContext; | ||
| import org.apache.commons.jxpath.JXPathException; | ||
|
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| /** | ||
| * <a href="http://commons.apache.org/jxpath/">JXPath</a> {@link Expression} support | ||
| */ | ||
| public class JXPathExpression extends ExpressionSupport<Exchange> { | ||
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| private String expression; | ||
| private CompiledExpression compiledExpression; | ||
| private final Class<?> type; | ||
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| /** | ||
| * Creates a new JXPathExpression instance | ||
| * | ||
| * @param expression the JXPath expression to be evaluated | ||
| * @param type the expected result type | ||
| */ | ||
| public JXPathExpression(String expression, Class<?> type) { | ||
| super(); | ||
| this.expression = expression; | ||
| this.type = type; | ||
| } | ||
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| public Object evaluate(Exchange exchange) { | ||
| try { | ||
| Object result = getJXPathExpression().getValue(JXPathContext.newContext(exchange)); | ||
| assertResultType(exchange, result); | ||
| return result; | ||
| } catch (JXPathException e) { | ||
| throw new ExpressionEvaluationException(this, exchange, e); | ||
| } | ||
| } | ||
|
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| /* | ||
| * Check if the result is of the specified type | ||
| */ | ||
| private void assertResultType(Exchange exchange, Object result) { | ||
| if (!type.isAssignableFrom(result.getClass())) { | ||
| throw new JXPathException("JXPath result type is " + result.getClass() + " instead of required type " + type); | ||
| } | ||
| } | ||
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| @Override | ||
| protected String assertionFailureMessage(Exchange exchange) { | ||
| return expression.toString(); | ||
| } | ||
|
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| /* | ||
| * Get a compiled expression instance for better performance | ||
| */ | ||
| private synchronized CompiledExpression getJXPathExpression() { | ||
| if (compiledExpression == null) { | ||
| compiledExpression = JXPathContext.compile(expression); | ||
| } | ||
| return compiledExpression; | ||
| } | ||
| } |
37 changes: 37 additions & 0 deletions
37
components/camel-jxpath/src/main/java/org/apache/camel/language/jxpath/JXPathLanguage.java
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| Original file line number | Diff line number | Diff line change |
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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.language.jxpath; | ||
|
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| import org.apache.camel.Exchange; | ||
| import org.apache.camel.Expression; | ||
| import org.apache.camel.Predicate; | ||
| import org.apache.camel.spi.Language; | ||
|
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| /** | ||
| * <a href="http://commons.apache.org/jxpath/">JXPath</a> {@link Language} provider | ||
| */ | ||
| public class JXPathLanguage implements Language { | ||
|
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| public Expression<Exchange> createExpression(String expression) { | ||
| return new JXPathExpression(expression, Object.class); | ||
| } | ||
|
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| public Predicate<Exchange> createPredicate(String predicate) { | ||
| return new JXPathExpression(predicate, Boolean.class); | ||
| } | ||
|
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| } |
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