Java Code Examples for org.w3c.dom.ls.LSParser#setFilter()

/**
 * Finds bean definition element by id and type in Spring application context and
 * performs unmarshalling in order to return JaxB object.
 * @param project
 * @param id
 * @param type
 * @return
 */
public <T> T getBeanDefinition(File configFile, Project project, String id, Class<T> type) {
    LSParser parser = XMLUtils.createLSParser();

    GetSpringBeanFilter filter = new GetSpringBeanFilter(id, type);
    parser.setFilter(filter);

    List<File> configFiles = new ArrayList<>();
    configFiles.add(configFile);
    configFiles.addAll(getConfigImports(configFile, project));

    for (File file : configFiles) {
        parser.parseURI(file.toURI().toString());

        if (filter.getBeanDefinition() != null) {
            return createJaxbObjectFromElement(filter.getBeanDefinition());
        }
    }

    return null;
}
 

/**
 * Finds all bean definition elements by type and attribute values in Spring application context and
 * performs unmarshalling in order to return a list of JaxB object.
 * @param project
 * @param type
 * @param attributes
 * @return
 */
public <T> List<T> getBeanDefinitions(File configFile, Project project, Class<T> type, Map<String, String> attributes) {
    List<T> beanDefinitions = new ArrayList<T>();

    List<File> importedFiles = getConfigImports(configFile, project);
    for (File importLocation : importedFiles) {
        beanDefinitions.addAll(getBeanDefinitions(importLocation, project, type, attributes));
    }

    LSParser parser = XMLUtils.createLSParser();

    GetSpringBeansFilter filter = new GetSpringBeansFilter(type, attributes);
    parser.setFilter(filter);
    parser.parseURI(configFile.toURI().toString());

    for (Element element : filter.getBeanDefinitions()) {
        beanDefinitions.add(createJaxbObjectFromElement(element));
    }

    return beanDefinitions;
}
 

/**
 * Equivalence class partitioning
 * with state, input and output values orientation
 * for public Document parse(LSInput is),
 * <br><b>pre-conditions</b>: set filter that REJECTs any CHILD* node,
 * <br><b>is</b>: xml1
 * <br><b>output</b>: XML document with ELEMNENT1 and ELEMENT2 only.
 */
@Test
public void testfilter0001() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            if (enode.getNodeName().startsWith("CHILD")) {
                return FILTER_REJECT;
            }
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    String expected = "<?xml version=\"1.0\"?><ROOT><ELEMENT1></ELEMENT1><ELEMENT2>test1</ELEMENT2></ROOT>";
    Document doc = parser.parse(getXmlSource(xml1));
    if (!match(expected, doc)) {
        Assert.fail("DOM structure after parsing is not equal to a structure of XML document, that being parsed");
    }

    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that SKIPs ELEMENT1 node, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: XML document with CHILD1 and ELEMENT2 only.
 */
@Test
public void testFilter0002() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            if (enode.getNodeName().startsWith("ELEMENT1")) {
                return FILTER_SKIP;
            }
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    String expected = "<?xml version=\"1.0\"?><ROOT><CHILD1/><CHILD1><COC1/></CHILD1><ELEMENT2>test1<CHILD2/></ELEMENT2></ROOT>";
    Document doc = parser.parse(getXmlSource(xml1));
    if (!match(expected, doc)) {
        Assert.fail("DOM structure after parsing is not equal to a structure of XML document, that being parsed");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that SKIPs ELEMENT1 node, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: XML document with ELEMENT1 only.
 */
@Test
public void testFilter0003() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            if (enode.getNodeName().startsWith("ELEMENT2")) {
                return FILTER_INTERRUPT;
            }
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    String expected = "<ROOT><ELEMENT1><CHILD1/><CHILD1><COC1/></CHILD1></ELEMENT1></ROOT>";
    Document doc = parser.parse(getXmlSource(xml1));
    if (!match(expected, doc)) {
        Assert.fail("DOM structure after parsing is not equal to a structure of XML document, that being parsed");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that accepts all, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: full XML document.
 */
@Test
public void testFilter0004() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    String expected = "<ROOT><ELEMENT1><CHILD1/><CHILD1><COC1/></CHILD1></ELEMENT1><ELEMENT2>test1<CHILD2/></ELEMENT2></ROOT>";
    Document doc = parser.parse(getXmlSource(xml1));
    if (!match(expected, doc)) {
        Assert.fail("DOM structure after parsing is not equal to a structure of XML document, that being parsed");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that REJECTs all, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: empty XML document.
 */
@Test
public void testFilter0005() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            return FILTER_REJECT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    Document doc = parser.parse(getXmlSource(xml1));
    NodeList children = doc.getDocumentElement().getChildNodes();
    if (children.getLength() != 0) {
        Assert.fail("Not all children skipped");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that SKIPs all, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: empty XML document.
 */
@Test
public void testFilter0006() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            return FILTER_SKIP;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    Document doc = parser.parse(getXmlSource(xml1));
    NodeList children = doc.getDocumentElement().getChildNodes();
    if (children.getLength() != 0) {
        Assert.fail("Not all children skipped");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that REJECTs any CHILD* start element, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: XML document with ELEMENT1 and ELEMENT2 only.
 */
@Test
public void testFilter0007() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            if (elt.getTagName().startsWith("CHILD")) {
                return FILTER_REJECT;
            }
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    String expected = "<?xml version=\"1.0\"?><ROOT><ELEMENT1></ELEMENT1><ELEMENT2>test1</ELEMENT2></ROOT>";
    Document doc = parser.parse(getXmlSource(xml1));
    if (!match(expected, doc)) {
        Assert.fail("DOM structure after parsing is not equal to a structure of XML document, that being parsed");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that SKIPs ELEMENT1 start element, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: XML document with CHILD1 and ELEMENT2 only.
 */
@Test
public void testFilter0008() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            if (elt.getTagName().equals("ELEMENT1")) {
                return FILTER_SKIP;
            }
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    String expected = "<?xml version=\"1.0\"?><ROOT><CHILD1/><CHILD1><COC1/></CHILD1><ELEMENT2>test1<CHILD2/></ELEMENT2></ROOT>";
    Document doc = parser.parse(getXmlSource(xml1));
    if (!match(expected, doc)) {
        Assert.fail("DOM structure after parsing is not equal to a structure of XML document, that being parsed");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that SKIPs ELEMENT1 start element, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: XML document with ELEMENT1 only.
 */
@Test
public void testFilter0009() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser!");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            if (elt.getTagName().startsWith("ELEMENT2")) {
                return FILTER_INTERRUPT;
            }
            return FILTER_ACCEPT;
        }

        public short acceptNode(Node enode) {
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    String expected = "<ROOT><ELEMENT1><CHILD1/><CHILD1><COC1/></CHILD1></ELEMENT1></ROOT>";
    Document doc = parser.parse(getXmlSource(xml1));
    if (!match(expected, doc)) {
        Assert.fail("DOM structure after parsing is not equal to a structure of XML document, that being parsed");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that REJECTs all start element, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: empty XML document.
 */
@Test
public void testFilter0010() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_REJECT;
        }

        public short acceptNode(Node enode) {
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    Document doc = parser.parse(getXmlSource(xml1));
    NodeList children = doc.getDocumentElement().getChildNodes();
    if (children.getLength() != 0) {
        Assert.fail("Not all children skipped");
    }
    System.out.println("OKAY");
}
 

/**
 * Equivalence class partitioning with state, input and output values
 * orientation for public Document parse(LSInput is), <br>
 * <b>pre-conditions</b>: set filter that SKIPs all, <br>
 * <b>is</b>: xml1 <br>
 * <b>output</b>: empty XML document.
 */
@Test
public void testFilter0011() {
    LSParser parser = createLSParser();
    if (parser == null) {
        Assert.fail("Unable to create LSParser");
    }
    // set filter
    parser.setFilter(new LSParserFilter() {
        public short startElement(Element elt) {
            return FILTER_SKIP;
        }

        public short acceptNode(Node enode) {
            return FILTER_ACCEPT;
        }

        public int getWhatToShow() {
            return NodeFilter.SHOW_ALL;
        }
    });
    Document doc = parser.parse(getXmlSource(xml1));
    NodeList children = doc.getDocumentElement().getChildNodes();
    if (children.getLength() != 1) {
        Assert.fail("Not all Element nodes skipped");
    }
    System.out.println("OKAY");
}
 

/**
 * Reads file import locations from Spring bean application context.
 * @param project
 * @return
 */
public List<File> getConfigImports(File configFile, Project project) {
    LSParser parser = XMLUtils.createLSParser();

    GetSpringImportsFilter filter = new GetSpringImportsFilter(configFile);
    parser.setFilter(filter);
    parser.parseURI(configFile.toURI().toString());

    return filter.getImportedFiles();
}
 

public InputSource newInputSource(String filename) throws Exception {
    // Create DOMImplementationLS, and DOM L3 LSParser
    DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
    DocumentBuilder bldr = fact.newDocumentBuilder();
    DOMImplementationLS impl = (DOMImplementationLS) bldr.getDOMImplementation();
    LSParser domparser = impl.createLSParser(MODE_SYNCHRONOUS, null);
    domparser.setFilter(new MyDOMBuilderFilter());

    // Parse the xml document to create the DOM Document using
    // the DOM L3 LSParser and a LSInput (formerly LSInputSource)
    Document doc = null;
    LSInput src = impl.createLSInput();
    // register the input file with the input source...
    String systemId = filenameToURL(filename);
    src.setSystemId(systemId);
    try (Reader reader = new FileReader(filename)) {
        src.setCharacterStream(reader);
        src.setEncoding("UTF-8");
        doc = domparser.parse(src);
    }

    // Use DOM L3 LSSerializer (previously called a DOMWriter)
    // to serialize the xml doc DOM to a file stream.
    String tmpCatalog = Files.createTempFile(Paths.get(USER_DIR), "catalog.xml", null).toString();

    LSSerializer domserializer = impl.createLSSerializer();
    domserializer.setFilter(new MyDOMWriterFilter());
    domserializer.getNewLine();
    DOMConfiguration config = domserializer.getDomConfig();
    config.setParameter("xml-declaration", Boolean.TRUE);
    String result = domserializer.writeToString(doc);
    try (FileWriter os = new FileWriter(tmpCatalog, false)) {
        os.write(result);
        os.flush();
    }

    // Return the Input Source created from the Serialized DOM L3 Document.
    InputSource catsrc = new InputSource(new InputStreamReader(new ByteArrayInputStream(Files.readAllBytes(Paths.get(tmpCatalog)))));
    catsrc.setSystemId(systemId);
    return catsrc;
}