org.xml.sax.ext.Attributes2Impl#setAttributes ( )源码实例Demo

@Test
public void test03() {
    System.out.println("===in test03()===");
    Attributes2Impl impl1 = new Attributes2Impl();
    impl1.addAttribute("http://www.cars.com/xml", "attr1", "Qname1", "type", "value");
    impl1.addAttribute("http://www.cars.com/xml", "attr2", "Qname2", "type", "value");
    impl1.addAttribute("http://www.cars.com/xml", "attr3", "Qname3", "type", "value");

    Attributes2Impl impl2 = new Attributes2Impl(impl1);

    Attributes2Impl impl3 = new Attributes2Impl();
    impl3.setAttributes(impl1);

    Assert.assertTrue(impl1.getQName(0).equals(impl2.getQName(0)));
    Assert.assertTrue(impl1.getQName(0).equals(impl3.getQName(0)));

    Assert.assertTrue(impl1.getQName(1).equals(impl2.getQName(1)));
    Assert.assertTrue(impl1.getQName(1).equals(impl3.getQName(1)));

    Assert.assertTrue(impl1.getQName(2).equals(impl2.getQName(2)));
    Assert.assertTrue(impl1.getQName(2).equals(impl3.getQName(2)));
}
 

public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
    super.startElement(uri, localName, qName, attributes);
    if (qName.equals("toy")) {
        Attributes2Impl impl = new Attributes2Impl();
        impl.setAttributes(attributes);
        System.out.println("\ntoy id=" + impl.getValue("id"));
    } else if (qName.equals("price") || qName.equals("name")) {
        System.out.print("       " + qName + " : ");
        currentValue = new StringBuffer();
    }
}
 

public void testSetAttributes() {
    // Ordinary case with Attributes2Impl
    Attributes2Impl attrs = new Attributes2Impl();
    attrs.addAttribute("", "", "john", "string", "doe");

    attrs.setAttributes(empty);
    assertEquals(0, attrs.getLength());

    attrs.setAttributes(multi);
    for (int i = 0; i < multi.getLength(); i++) {
        assertEquals(multi.getURI(i), attrs.getURI(i));
        assertEquals(multi.getLocalName(i), attrs.getLocalName(i));
        assertEquals(multi.getQName(i), attrs.getQName(i));
        assertEquals(multi.getType(i), attrs.getType(i));
        assertEquals(multi.getValue(i), attrs.getValue(i));
        assertEquals(multi.isDeclared(i), attrs.isDeclared(i));
        assertEquals(multi.isSpecified(i), attrs.isSpecified(i));
    }

    attrs.setAttributes(empty);
    assertEquals(0, attrs.getLength());

    // Ordinary case with AttributesImpl
    attrs.setAttributes(new AttributesImpl(multi));
    assertEquals(multi.getLength(), attrs.getLength());

    for (int i = 0; i < multi.getLength(); i++) {
        assertEquals(multi.getURI(i), attrs.getURI(i));
        assertEquals(multi.getLocalName(i), attrs.getLocalName(i));
        assertEquals(multi.getQName(i), attrs.getQName(i));
        assertEquals(multi.getType(i), attrs.getType(i));
        assertEquals(multi.getValue(i), attrs.getValue(i));
        assertEquals(true, attrs.isDeclared(i));
        assertEquals(true, attrs.isSpecified(i));
    }

    // Special case with CDATA
    attrs.setAttributes(new AttributesImpl(cdata));
    assertEquals(1, attrs.getLength());
    assertEquals(false, attrs.isDeclared(0));
    assertEquals(true, attrs.isSpecified(0));

    // null case
    try {
        attrs.setAttributes(null);
        fail("NullPointerException expected");
    } catch (NullPointerException e) {
        // Expected
    }
}