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Diffstat (limited to 'branches/sca-java-0.90/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyUtil.java')
| -rw-r--r-- | branches/sca-java-0.90/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyUtil.java | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/branches/sca-java-0.90/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyUtil.java b/branches/sca-java-0.90/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyUtil.java deleted file mode 100644 index 71be058795..0000000000 --- a/branches/sca-java-0.90/modules/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/PropertyUtil.java +++ /dev/null @@ -1,189 +0,0 @@ -/* - * 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.assembly.builder.impl; - -import java.io.IOException; -import java.io.InputStream; -import java.net.MalformedURLException; -import java.net.URI; -import java.net.URL; -import java.util.Iterator; -import java.util.List; -import java.util.Map; - -import javax.xml.namespace.NamespaceContext; -import javax.xml.parsers.DocumentBuilderFactory; -import javax.xml.parsers.ParserConfigurationException; -import javax.xml.transform.Source; -import javax.xml.transform.TransformerException; -import javax.xml.transform.TransformerFactory; -import javax.xml.transform.dom.DOMResult; -import javax.xml.transform.sax.SAXSource; -import javax.xml.xpath.XPath; -import javax.xml.xpath.XPathConstants; -import javax.xml.xpath.XPathExpression; -import javax.xml.xpath.XPathExpressionException; -import javax.xml.xpath.XPathFactory; - -import org.apache.tuscany.sca.assembly.Component; -import org.apache.tuscany.sca.assembly.ComponentProperty; -import org.apache.tuscany.sca.assembly.Property; -import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException; -import org.w3c.dom.Document; -import org.w3c.dom.Node; -import org.xml.sax.InputSource; - -/** - * Utility class to deal with processing of component properties that are taking values from the parent - * composite's properties or an external file. - */ -public class PropertyUtil { - private static final XPathFactory XPATH_FACTORY = XPathFactory.newInstance(); - private static final DocumentBuilderFactory DOC_BUILDER_FACTORY = DocumentBuilderFactory.newInstance(); - private static final TransformerFactory TRANSFORMER_FACTORY = TransformerFactory.newInstance(); - - static private Document evaluate(NamespaceContext nsContext, Node node, String xPathExpression) - throws XPathExpressionException, ParserConfigurationException { - XPath path = XPATH_FACTORY.newXPath(); - - if (nsContext != null) { - path.setNamespaceContext(nsContext); - } else { - path.setNamespaceContext(new DOMNamespaceContext(node)); - } - - XPathExpression expression = path.compile(xPathExpression); - Node result = (Node)expression.evaluate(node, XPathConstants.NODE); - if (result == null) { - return null; - } - - // TODO: How to wrap the result into a Document? - Document document = DOC_BUILDER_FACTORY.newDocumentBuilder().newDocument(); - if (result instanceof Document) { - return (Document)result; - } else { - //Element root = document.createElementNS(null, "value"); - //document.appendChild(root); - document.appendChild(document.importNode(result, true)); - return document; - } - } - - static private Document loadFromFile(String file) throws MalformedURLException, IOException, - TransformerException, ParserConfigurationException { - URI uri = URI.create(file); - URL url = null; - if (!uri.isAbsolute()) { - url = Thread.currentThread().getContextClassLoader().getResource(file); - } else { - url = uri.toURL(); - } - InputStream is = url.openStream(); - - Source streamSource = new SAXSource(new InputSource(is)); - DOMResult result = new DOMResult(); - javax.xml.transform.Transformer transformer = TRANSFORMER_FACTORY.newTransformer(); - transformer.transform(streamSource, result); - is.close(); - - return (Document)result.getNode(); - } - - static void sourceComponentProperties(Map<String, Property> compositeProperties, - Component componentDefinition) throws CompositeBuilderException, - ParserConfigurationException, - XPathExpressionException, - TransformerException, - IOException { - - List<ComponentProperty> componentProperties = componentDefinition.getProperties(); - for (ComponentProperty aProperty : componentProperties) { - String source = aProperty.getSource(); - String file = aProperty.getFile(); - if (source != null) { - // $<name>/... - int index = source.indexOf('/'); - if (index == -1) { - // Tolerating $prop - source = source + "/"; - index = source.length() - 1; - } - if (source.charAt(0) == '$') { - String name = source.substring(1, index); - Property compositeProp = compositeProperties.get(name); - if (compositeProp == null) { - throw new CompositeBuilderException("The 'source' cannot be resolved to a composite property: " + source); - } - - Document compositePropDefValues = (Document)compositeProp.getValue(); - - // Adding /value because the document root is "value" - String path = source.substring(index); - String xpath = null; - - if ("/".equals(path)) { - // trailing / is not legal for xpath - xpath = "/value"; - } else { - xpath = "/value" + path; - } - - // FIXME: How to deal with namespaces? - Document node = evaluate(null, compositePropDefValues, xpath); - - if (node != null) { - aProperty.setValue(node); - } - } else { - throw new CompositeBuilderException("The 'source' has an invalid value: " + source); - } - } else if (file != null) { - aProperty.setValue(loadFromFile(aProperty.getFile())); - - } - } - } - - private static class DOMNamespaceContext implements NamespaceContext { - private Node node; - - /** - * @param node - */ - public DOMNamespaceContext(Node node) { - super(); - this.node = node; - } - - public String getNamespaceURI(String prefix) { - return node.lookupNamespaceURI(prefix); - } - - public String getPrefix(String namespaceURI) { - return node.lookupPrefix(namespaceURI); - } - - public Iterator<?> getPrefixes(String namespaceURI) { - return null; - } - - } - -} |