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Posted to commits@sling.apache.org by cz...@apache.org on 2015/05/04 12:22:41 UTC

svn commit: r1677575 - in /sling/whiteboard/portal/container: ./ src/main/java/org/apache/pluto/ src/main/java/org/apache/pluto/container/ src/main/java/org/apache/pluto/container/impl/

Author: cziegeler
Date: Mon May  4 10:22:41 2015
New Revision: 1677575

URL: http://svn.apache.org/r1677575
Log:
Fix classloader problems with jaxb

Added:
    sling/whiteboard/portal/container/src/main/java/org/apache/pluto/
    sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/
    sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/
    sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/PortletAppDescriptorServiceImpl.java   (with props)
Modified:
    sling/whiteboard/portal/container/pom.xml

Modified: sling/whiteboard/portal/container/pom.xml
URL: http://svn.apache.org/viewvc/sling/whiteboard/portal/container/pom.xml?rev=1677575&r1=1677574&r2=1677575&view=diff
==============================================================================
--- sling/whiteboard/portal/container/pom.xml (original)
+++ sling/whiteboard/portal/container/pom.xml Mon May  4 10:22:41 2015
@@ -79,7 +79,8 @@
                             org.apache.sling.portal.container.internal.request,
                             org.apache.sling.portal.container.internal.services,
                             org.apache.sling.portal.container.internal.ui,
-                            org.apache.sling.portal.container.internal.util
+                            org.apache.sling.portal.container.internal.util,
+                            org.apache.pluto.container.impl
                         </Private-Package>
                         <Embed-Dependency>pluto-container,jaxb-impl,stax</Embed-Dependency>
                      </instructions>

Added: sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/PortletAppDescriptorServiceImpl.java
URL: http://svn.apache.org/viewvc/sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/PortletAppDescriptorServiceImpl.java?rev=1677575&view=auto
==============================================================================
--- sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/PortletAppDescriptorServiceImpl.java (added)
+++ sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/PortletAppDescriptorServiceImpl.java Mon May  4 10:22:41 2015
@@ -0,0 +1,349 @@
+/*
+ * 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.pluto.container.impl;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Iterator;
+import java.util.Locale;
+import java.util.regex.Pattern;
+
+import javax.xml.XMLConstants;
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.JAXBElement;
+import javax.xml.bind.JAXBException;
+import javax.xml.bind.Marshaller;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.bind.helpers.DefaultValidationEventHandler;
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.stream.events.XMLEvent;
+import javax.xml.stream.util.StreamReaderDelegate;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathFactory;
+
+import org.apache.pluto.container.PortletAppDescriptorService;
+import org.apache.pluto.container.om.portlet.PortletApplicationDefinition;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
+import org.xml.sax.EntityResolver;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+/** 
+ *  JAXB implementation of the xml2java binding
+ *  @author <a href="mailto:chrisra@cs.uni-jena.de">Christian Raschka</a>
+ */
+
+public class PortletAppDescriptorServiceImpl implements PortletAppDescriptorService{
+    
+    private static class WebAppDtdEntityResolver implements EntityResolver {
+        public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException
+        {
+            if (systemId.equals("http://java.sun.com/dtd/web-app_2_3.dtd"))
+            {
+                return new InputSource(getClass().getResourceAsStream("web-app_2_3.dtd"));
+            }
+            return null;
+        }
+    }
+
+    private static class NamespaceOverridingStreamReaderDelegate extends StreamReaderDelegate {
+        private String adjustedNamespaceURI = null;
+
+        private NamespaceOverridingStreamReaderDelegate(XMLStreamReader reader) {
+            super(reader);
+        }
+
+        @Override
+        public int next() throws XMLStreamException
+        {
+            int eventCode = super.next();
+            if (eventCode == XMLEvent.START_ELEMENT && "portlet-app".equals(getLocalName()))
+            {
+                String version = getAttributeValue(null, "version");
+                if ("1.0".equals(version))
+                {
+                    adjustedNamespaceURI = "http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd";
+                }
+                else if ("2.0".equals(version))
+                {
+                    adjustedNamespaceURI = "http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd";
+                }
+            }
+            return eventCode;
+        }
+
+        @Override
+        public String getNamespaceURI()
+        {
+            String namespaceURI = super.getNamespaceURI();
+            return (namespaceURI != null ? namespaceURI : adjustedNamespaceURI);
+        }
+    }
+
+    private static class XPathNamespaceContext implements NamespaceContext
+    {
+        private String namespaceURI;
+        private String prefix;
+        
+        public XPathNamespaceContext(String prefix)
+        {
+            this(prefix,XMLConstants.XML_NS_URI);
+        }
+
+        public XPathNamespaceContext(String prefix, String namespaceURI)
+        {
+            this.prefix = prefix;
+            this.namespaceURI = namespaceURI;
+        }
+
+        public String getNamespaceURI(String prefix)
+        {
+            if (prefix == null)
+            {
+                throw new NullPointerException("Null prefix");
+            }
+            else if (this.prefix.equals(prefix))
+            {
+                return namespaceURI;
+            }
+            else if ("xml".equals(prefix))
+            {
+                return XMLConstants.XML_NS_URI;
+            }
+            return XMLConstants.NULL_NS_URI;
+        }
+
+        public String getPrefix(String namespaceURI)
+        {
+            throw new UnsupportedOperationException();
+        }
+
+        public Iterator<?> getPrefixes(String namespaceURI)
+        {
+            throw new UnsupportedOperationException();
+        }
+    }
+
+    public static Locale convertStringToLocale(String lang)
+    {
+        if (lang == null)
+        {
+            return null;
+        }
+        String country = "";
+        String variant = "";
+        String[] localeArray = LOCALE_SPLIT.split(lang);
+        for (int i = 0; i < localeArray.length; i++)
+        {
+            if (i == 0)
+            {
+                lang = localeArray[i];
+            }
+            else if (i == 1)
+            {
+                country = localeArray[i];
+            }
+            else if (i == 2)
+            {
+                variant = localeArray[i];
+            }
+        }
+        return new Locale(lang, country, variant);
+    }    
+    
+    private static final Pattern LOCALE_SPLIT = Pattern.compile("[-|_]");
+    private static final String NAMESPACE_PREFIX = "xp";
+    
+    private final JAXBContext jaxbContext;
+
+    public PortletAppDescriptorServiceImpl() {
+        ClassLoader containerClassLoader = PortletAppDescriptorServiceImpl.class.getClassLoader();
+        try {
+            jaxbContext = JAXBContext.newInstance(org.apache.pluto.container.om.portlet10.impl.ObjectFactory.class.getPackage().getName() + ":" +
+                                                  org.apache.pluto.container.om.portlet.impl.ObjectFactory.class.getPackage().getName(), 
+                                                  containerClassLoader);
+        }
+        catch (JAXBException e) {
+            throw new IllegalStateException("Failed to initialize JAXBContext for reading and writing portlet descriptors", e);
+        }
+    }
+    
+    /**
+     * Read the Web Application Deployment Descriptor.
+     *
+     * @return WebAppDD instance representing the descriptor.
+     * @throws java.io.IOException
+     */
+    public PortletApplicationDefinition read(String name, String contextPath, InputStream in) throws IOException 
+    {
+        if (in == null) {
+            throw new IOException("Cannot read from a null InputStream");
+        }
+        
+        final XMLInputFactory xmlInputFactory = getXmlInputFactory();
+        
+        //Generate an xml stream reader for the input stream 
+        final XMLStreamReader streamReader;
+        try {
+            streamReader = xmlInputFactory.createXMLStreamReader(in);
+        }
+        catch (XMLStreamException e) {
+            final IOException ioe = new IOException(e.getLocalizedMessage());
+            ioe.initCause(e);
+            throw ioe;
+        }
+        
+        //Wrap the stream reader to make sure the namespace gets setup correctly
+        final XMLStreamReader delegatingStreamReader = new NamespaceOverridingStreamReaderDelegate(streamReader);
+
+        //Unmarshall the stream
+        final JAXBElement<?> app;
+        try {
+            final Unmarshaller unmarshaller = this.jaxbContext.createUnmarshaller();
+            unmarshaller.setEventHandler(new DefaultValidationEventHandler());
+            app = (JAXBElement<?>) unmarshaller.unmarshal(delegatingStreamReader);
+        }
+        catch (JAXBException e) {
+            final IOException ioe = new IOException(e.getMessage());
+            ioe.initCause(e);
+            throw ioe;
+        }
+
+        PortletApplicationDefinition pad = null;
+        if (app.getValue() instanceof org.apache.pluto.container.om.portlet10.impl.PortletAppType)
+        {
+             pad = ((org.apache.pluto.container.om.portlet10.impl.PortletAppType)app.getValue()).upgrade();
+        }      
+        else
+        {
+            pad = (PortletApplicationDefinition)app.getValue();
+        }
+        
+        pad.setName(name);
+        pad.setContextPath(contextPath);
+        
+        return pad;
+    }
+
+    public void mergeWebDescriptor(PortletApplicationDefinition pa, InputStream webDescriptor) throws Exception
+    {
+        final DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
+        documentBuilderFactory.setNamespaceAware(true);
+        final DocumentBuilder builder = documentBuilderFactory.newDocumentBuilder();
+        builder.setEntityResolver(new WebAppDtdEntityResolver());
+        
+        final Document document = builder.parse(webDescriptor);
+        final Element root = document.getDocumentElement();
+        final String namespace = root.getNamespaceURI();
+
+        final XPathFactory xpathFactory = XPathFactory.newInstance();
+        final XPath xpath = xpathFactory.newXPath();
+        
+        String prefix;
+        if(namespace!= null && namespace.length() > 0)
+        {
+            prefix = NAMESPACE_PREFIX+":";
+            xpath.setNamespaceContext(new XPathNamespaceContext(NAMESPACE_PREFIX, namespace));
+        }
+        else
+        {
+            prefix = XMLConstants.DEFAULT_NS_PREFIX;
+            xpath.setNamespaceContext(new XPathNamespaceContext(XMLConstants.DEFAULT_NS_PREFIX));
+        }
+        
+        NodeList nodes;
+        NodeList children;
+        Element element;
+
+        // retrieve locale-encoding-mapping
+        nodes = (NodeList)xpath.evaluate("/"+prefix+"web-app/"+prefix+"locale-encoding-mapping-list/"+prefix+"locale-encoding-mapping", document, XPathConstants.NODESET);
+        if (nodes != null)
+        {
+            String locale;
+            String encoding;
+            
+            for (int i = 0, nsize = nodes.getLength(); i < nsize; i++)
+            {
+                element = (Element)nodes.item(i);
+                children = element.getElementsByTagName("locale");
+                if (children != null && children.getLength() != 0)
+                {
+                    locale = children.item(0).getTextContent().trim();
+                    if (locale.length() > 0)
+                    {
+                        
+                        children = element.getElementsByTagName("encoding");
+                        if (children != null && children.getLength() != 0)
+                        {
+                            encoding = children.item(0).getTextContent().trim();
+                            if (encoding.length() > 0)
+                            {
+                                pa.getLocaleEncodingMappings().put(convertStringToLocale(locale), encoding);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    /**
+     * Write the deployment descriptor.
+     * @param app
+     * @throws java.io.IOException
+     */
+    public void write(PortletApplicationDefinition app, OutputStream out) throws IOException {
+        try {
+            final Object src;
+            if (PortletApplicationDefinition.JSR_168_VERSION.equals(app.getVersion()))
+            {                
+                src = new org.apache.pluto.container.om.portlet10.impl.PortletAppType(app);
+            }
+            else
+            {
+                src = app;
+            }
+            final Marshaller marshaller = this.jaxbContext.createMarshaller();
+            marshaller.setEventHandler(new DefaultValidationEventHandler());
+            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
+            marshaller.marshal(src,out);
+        }
+        catch (JAXBException jaxbEx){
+            final IOException ioe = new IOException(jaxbEx.getMessage());
+            ioe.initCause(jaxbEx);
+            throw ioe;
+        }
+        catch(Exception me) {
+            final IOException ioe = new IOException(me.getLocalizedMessage());
+            ioe.initCause(me);
+            throw ioe;
+        }
+    }
+    
+    protected XMLInputFactory getXmlInputFactory() {
+	    return XMLInputFactory.newInstance();
+    }
+}

Propchange: sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/PortletAppDescriptorServiceImpl.java
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Propchange: sling/whiteboard/portal/container/src/main/java/org/apache/pluto/container/impl/PortletAppDescriptorServiceImpl.java
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