wadlresourcetest.java

resetful样式的ws样例,一种面向资源的webservices服务

        // check only once resource with for widgets
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets'])", d, XPathConstants.STRING);
        assertEquals(val,"1");
        // check 3 methods for {id}
        val = (String)xp.evaluate("count(//wadl:resource[@path='{id}']/wadl:method)", d, XPathConstants.STRING);
        assertEquals(val,"3");
        // check 2 methods for widgets
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets']/wadl:method)", d, XPathConstants.STRING);
        assertEquals(val,"2");
        // check type of {id} is int
        val = (String)xp.evaluate("//wadl:resource[@path='{id}']/wadl:param[@name='id']/@type", d, XPathConstants.STRING);
        assertEquals(val,"xs:int");
        // check number of output representations is two
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets']/wadl:method[@name='GET']/wadl:response/wadl:representation)", d, XPathConstants.STRING);
        assertEquals(val,"2");
        // check number of output representations is one
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets']/wadl:method[@name='POST']/wadl:request/wadl:representation)", d, XPathConstants.STRING);
        assertEquals(val,"1");

        // test ExtraResource
        r = resource("/foo");
        
        tmpFile = r.options(File.class);
        b = bf.newDocumentBuilder();
        d = b.parse(tmpFile);
        printSource(new DOMSource(d));
        // check base URI
        val = (String)xp.evaluate("/wadl:application/wadl:resources/@base", d, XPathConstants.STRING);
        assertEquals(val,BASE_URI.toString());
        // check total number of resources is 1 (no ExtraResource details included)
        val = (String)xp.evaluate("count(//wadl:resource)", d, XPathConstants.STRING);
        assertEquals(val,"1");
        // check only once resource with path foo
        val = (String)xp.evaluate("count(//wadl:resource[@path='foo'])", d, XPathConstants.STRING);
        assertEquals(val,"1");
        // check 1 methods for foo
        val = (String)xp.evaluate("count(//wadl:resource[@path='foo']/wadl:method)", d, XPathConstants.STRING);
        assertEquals(val,"1");
    }
    
    public void testOptionsLocatorWadl() throws ParserConfigurationException, SAXException, IOException, XPathExpressionException {
        initiateWebApplication(WidgetsResource.class, ExtraResource.class);
        WebResource r = resource("/widgets/3/verbose");
        
        // test WidgetsResource
        File tmpFile = r.accept(MediaTypes.WADL).options(File.class);
        DocumentBuilderFactory bf = DocumentBuilderFactory.newInstance();
        bf.setNamespaceAware(true);
        bf.setValidating(false);
        bf.setXIncludeAware(false);
        DocumentBuilder b = bf.newDocumentBuilder();
        Document d = b.parse(tmpFile);
        printSource(new DOMSource(d));
        XPath xp = XPathFactory.newInstance().newXPath();
        xp.setNamespaceContext(new NSResolver("wadl", "http://research.sun.com/wadl/2006/10"));
        // check base URI
        String val = (String)xp.evaluate("/wadl:application/wadl:resources/@base", d, XPathConstants.STRING);
        assertEquals(val,BASE_URI.toString());
        // check total number of resources is 1 (no ExtraResource details included)
        val = (String)xp.evaluate("count(//wadl:resource)", d, XPathConstants.STRING);
        assertEquals(val,"1");
        // check only once resource with path 
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets/3/verbose'])", d, XPathConstants.STRING);
        assertEquals(val,"1");
        // check 1 methods
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets/3/verbose']/wadl:method)", d, XPathConstants.STRING);
        assertEquals(val,"1");
    }
    
    public void testOptionsSubResourceWadl() throws ParserConfigurationException, SAXException, IOException, XPathExpressionException {
        initiateWebApplication(WidgetsResource.class, ExtraResource.class);
        WebResource r = resource("/widgets/3");
        
        // test WidgetsResource
        File tmpFile = r.accept(MediaTypes.WADL).options(File.class);
        DocumentBuilderFactory bf = DocumentBuilderFactory.newInstance();
        bf.setNamespaceAware(true);
        bf.setValidating(false);
        bf.setXIncludeAware(false);
        DocumentBuilder b = bf.newDocumentBuilder();
        Document d = b.parse(tmpFile);
        printSource(new DOMSource(d));
        XPath xp = XPathFactory.newInstance().newXPath();
        xp.setNamespaceContext(new NSResolver("wadl", "http://research.sun.com/wadl/2006/10"));
        String val = (String)xp.evaluate("/wadl:application/wadl:resources/@base", d, XPathConstants.STRING);
        assertEquals(val,BASE_URI.toString());
        // check total number of resources is 1
        val = (String)xp.evaluate("count(//wadl:resource)", d, XPathConstants.STRING);
        assertEquals(val,"1");
        // check only one resource with for {id}
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets/3'])", d, XPathConstants.STRING);
        assertEquals(val,"1");
        // check 3 methods
        val = (String)xp.evaluate("count(//wadl:resource[@path='widgets/3']/wadl:method)", d, XPathConstants.STRING);
        assertEquals(val,"3");
    }
    
    @Path("root")
    public static class RootResource {
        @Path("loc")
        public Object getSub() {
            return new SubResource();
        }
    }
    
    public static class SubResource {
        @Path("loc")
        public Object getSub() {
            return new SubResource();
        }
        
        @GET
        @ProduceMime("text/plain")
        public String hello() {
            return "Hello World !";
        }
        
        @GET
        @Path("sub")
        @ProduceMime("text/plain")
        public String helloSub() {
            return "Hello World !";
        }
    }
    
    public void testRecursive() throws ParserConfigurationException, SAXException, IOException, XPathExpressionException {
        initiateWebApplication(RootResource.class);
        WebResource r = resource("/root/loc");
        
        // test WidgetsResource
        File tmpFile = r.accept(MediaTypes.WADL).options(File.class);
        DocumentBuilderFactory bf = DocumentBuilderFactory.newInstance();
        bf.setNamespaceAware(true);
        bf.setValidating(false);
        bf.setXIncludeAware(false);
        DocumentBuilder b = bf.newDocumentBuilder();
        Document d = b.parse(tmpFile);
        printSource(new DOMSource(d));
        XPath xp = XPathFactory.newInstance().newXPath();
        xp.setNamespaceContext(new NSResolver("wadl", "http://research.sun.com/wadl/2006/10"));
        String val = (String)xp.evaluate("/wadl:application/wadl:resources/@base", d, XPathConstants.STRING);
        assertEquals(val,BASE_URI.toString());
        // check only one resource with for 'root/loc'
        val = (String)xp.evaluate("count(//wadl:resource[@path='root/loc'])", d, XPathConstants.STRING);
        assertEquals(val,"1");
        
        r = resource("/root/loc/loc");
        
        // test WidgetsResource
        tmpFile = r.accept(MediaTypes.WADL).options(File.class);
        bf = DocumentBuilderFactory.newInstance();
        bf.setNamespaceAware(true);
        bf.setValidating(false);
        bf.setXIncludeAware(false);
        b = bf.newDocumentBuilder();
        d = b.parse(tmpFile);
        printSource(new DOMSource(d));
        xp = XPathFactory.newInstance().newXPath();
        xp.setNamespaceContext(new NSResolver("wadl", "http://research.sun.com/wadl/2006/10"));
        val = (String)xp.evaluate("/wadl:application/wadl:resources/@base", d, XPathConstants.STRING);
        assertEquals(val,BASE_URI.toString());
        // check only one resource with for 'root/loc'
        val = (String)xp.evaluate("count(//wadl:resource[@path='root/loc/loc'])", d, XPathConstants.STRING);
        assertEquals(val,"1");
        
    }
    
    private static class NSResolver implements NamespaceContext {
        private String prefix;
        private String nsURI;
        
        public NSResolver(String prefix, String nsURI) {
            this.prefix = prefix;
            this.nsURI = nsURI;
        }
        
        public String getNamespaceURI(String prefix) {
             if (prefix.equals(this.prefix))
                 return this.nsURI;
             else
                 return XMLConstants.NULL_NS_URI;
        }

        public String getPrefix(String namespaceURI) {
            if (namespaceURI.equals(this.nsURI))
                return this.prefix;
            else
                return null;
        }

        public Iterator getPrefixes(String namespaceURI) {
            return null;
        }
    }

    
    private static void printSource(Source source) {
        try {
            System.out.println("---------------------");
            Transformer trans = TransformerFactory.newInstance().newTransformer();
            Properties oprops = new Properties();
            oprops.put(OutputKeys.OMIT_XML_DECLARATION, "yes");
            oprops.put(OutputKeys.INDENT, "yes");
            oprops.put(OutputKeys.METHOD, "xml");
            trans.setOutputProperties(oprops);
            trans.transform(source, new StreamResult(System.out));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}