diff options
author | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2010-07-22 10:30:49 +0000 |
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committer | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2010-07-22 10:30:49 +0000 |
commit | 2adc116ef0a2d281111644c153604543078f7995 (patch) | |
tree | c3725801a496b274fd2d185475684c334e3c3e54 /sca-java-2.x/tags/2.0-Beta1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/policy/xml/PolicyXPathFunctionResolver.java | |
parent | 2a6922c5a19e205e7f6dafb7f7fe63f5eb508e82 (diff) |
Tag 2.0-Beta1-RC1
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@966566 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/policy/xml/PolicyXPathFunctionResolver.java | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/policy/xml/PolicyXPathFunctionResolver.java b/sca-java-2.x/tags/2.0-Beta1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/policy/xml/PolicyXPathFunctionResolver.java new file mode 100644 index 0000000000..ca44667903 --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta1-RC1/modules/assembly-xml/src/main/java/org/apache/tuscany/sca/policy/xml/PolicyXPathFunctionResolver.java @@ -0,0 +1,72 @@ +/* + * 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.tuscany.sca.policy.xml; + +import javax.xml.namespace.NamespaceContext; +import javax.xml.namespace.QName; +import javax.xml.xpath.XPathFunction; +import javax.xml.xpath.XPathFunctionResolver; + +/** + * A resolver that handles SCA-defined XPath functions + * + * Interface Related Functions + * <ul> + * <li>InterfaceRef( InterfaceName ) + * <li>OperationRef( InterfaceName/OperationName ) + * <li>MessageRef( InterfaceName/OperationName/MessageName ) + * </ul> + * + * Intent Related Functions + * <ul> + * <li>IntentRefs( IntentList ) + * </ul> + * + * URI Based Function + * <ul> + * <li>URIRef( URI ) + * </ul> + */ +public class PolicyXPathFunctionResolver implements XPathFunctionResolver { + private NamespaceContext namespaceContext; + + public PolicyXPathFunctionResolver(NamespaceContext namespaceContext) { + super(); + this.namespaceContext = namespaceContext; + } + + public XPathFunction resolveFunction(QName functionName, int arity) { + if (functionName == null) { + throw new NullPointerException("Function name is null"); + } + if (PolicyXPathFunction.functions.contains(functionName)) { + if (arity >= 1) { + // We are relaxing the arity here so that we can pass in the context node + // by modifying the original xpath so that sca functions take self::node() + // as the 2nd argument + return new PolicyXPathFunction(namespaceContext, functionName); + } else { + throw new IllegalArgumentException("Invalid number of arguments: " + arity); + } + } + return null; + } + +} |