/*
* Copyright 2011, 2012 Odysseus Software GmbH
*
* Licensed 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.synapse.commons.staxon.core.json;
import java.io.StringReader;
import java.math.BigDecimal;
import javax.xml.XMLConstants;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;
import org.junit.Assert;
import org.junit.Test;
public class JsonXMLStreamReaderTest {
void verify(XMLStreamReader reader, int expectedEventType, String expectedLocalName, String expectedText) {
Assert.assertEquals(expectedEventType, reader.getEventType());
Assert.assertEquals(expectedLocalName, reader.getLocalName());
Assert.assertEquals(expectedText, reader.getText());
}
/**
* <code><alice>bob</alice></code>
*/
@Test
public void testTextContent() throws Exception {
String input = "{\"alice\":\"bob\"}";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice><bob>charlie</bob><david>edgar</david></alice></code>
*/
@Test
public void testNested() throws Exception {
String input = "{\"alice\":{\"bob\":\"charlie\",\"david\":\"edgar\"}}";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "bob", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "charlie");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "bob", null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "david", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "edgar");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "david", null);
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice><bob>charlie</bob><bob>david</bob></alice></code>
*/
@Test
public void testArray() throws Exception {
String input = "{\"alice\":{\"bob\":[\"charlie\",\"david\"]}}";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.PROCESSING_INSTRUCTION, null, null);
Assert.assertEquals(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, reader.getPITarget());
Assert.assertEquals("bob", reader.getPIData());
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "bob", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "charlie");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "bob", null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "bob", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "david");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "bob", null);
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice charlie="david">bob</alice></code>
*/
@Test
public void testAttributes() throws Exception {
String input = "{\"alice\":{\"@charlie\":\"david\",\"$\":\"bob\"}}";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
Assert.assertEquals(1, reader.getAttributeCount());
Assert.assertEquals("david", reader.getAttributeValue(null, "charlie"));
Assert.assertEquals("david", reader.getAttributeValue(XMLConstants.NULL_NS_URI, "charlie"));
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice xmlns="http://some-namespace">bob</alice></code>
*/
@Test
public void testNamespaces() throws Exception {
String input = "{\"alice\":{\"@xmlns\":\"http://some-namespace\",\"$\":\"bob\"}}";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
Assert.assertEquals("http://some-namespace", reader.getNamespaceURI());
Assert.assertEquals(0, reader.getAttributeCount());
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
Assert.assertEquals("http://some-namespace", reader.getNamespaceURI());
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice xmlns="http://foo" xmlns:bar="http://bar">bob</alice></code>
* with badgerfish notation
*/
@Test
public void testNamespacesBadgerfish() throws Exception {
String input = "{\"alice\":{\"@xmlns\":{\"$\":\"http://foo\",\"bar\":\"http://bar\"},\"$\":\"bob\"}}";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
Assert.assertEquals("http://foo", reader.getNamespaceURI());
Assert.assertEquals("http://bar", reader.getNamespaceURI("bar"));
Assert.assertEquals(0, reader.getAttributeCount());
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
Assert.assertEquals("http://foo", reader.getNamespaceURI());
Assert.assertEquals("http://bar", reader.getNamespaceURI("bar"));
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice>bob</alice><alice>bob</alice></code>
*/
@Test
public void testRootArray() throws Exception {
String input = "{\"alice\":[\"bob\",\"bob\"]}";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.PROCESSING_INSTRUCTION, null, null);
Assert.assertEquals(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, reader.getPITarget());
Assert.assertEquals("alice", reader.getPIData());
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice>bob</alice><alice>bob</alice></code>
*/
@Test
public void testRootArrayWithVirtualRoot() throws Exception {
String input = "[\"bob\",\"bob\"]";
JsonXMLInputFactory factory = new JsonXMLInputFactory();
factory.setProperty(JsonXMLInputFactory.PROP_VIRTUAL_ROOT, new QName("alice"));
XMLStreamReader reader = factory.createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.PROCESSING_INSTRUCTION, null, null);
Assert.assertEquals(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, reader.getPITarget());
Assert.assertEquals("alice", reader.getPIData());
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
@Test
public void testSimpleValueArray() throws Exception {
String input = "[\"edgar\",\"david\"]";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.PROCESSING_INSTRUCTION, null, null);
Assert.assertEquals(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, reader.getPITarget());
Assert.assertNull(reader.getPIData());
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "edgar");
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "david");
Assert.assertFalse(reader.hasNext());
reader.close();
}
@Test
public void testDocumentArray() throws Exception {
String input = "[{\"alice\":\"bob\"},{\"alice\":\"bob\"}]";
XMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.PROCESSING_INSTRUCTION, null, null);
Assert.assertEquals(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, reader.getPITarget());
Assert.assertNull(reader.getPIData());
reader.next();
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "bob");
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
Assert.assertFalse(reader.hasNext());
reader.close();
}
/**
* <code><alice>123.40</alice></code>
*/
@Test
public void testNumber() throws Exception {
String input = "{\"alice\" : 123.40}";
JsonXMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "123.40");
Assert.assertTrue(reader.hasNumber());
Assert.assertFalse(reader.hasBoolean());
Assert.assertEquals(new BigDecimal("123.40"), reader.getNumber());
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice>false</alice></code>
*/
@Test
public void testBoolean() throws Exception {
String input = "{\"alice\" : false}";
JsonXMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.CHARACTERS, null, "false");
Assert.assertFalse(reader.hasNumber());
Assert.assertTrue(reader.hasBoolean());
Assert.assertFalse(reader.getBoolean());
reader.next();
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
/**
* <code><alice/></code>
*/
@Test
public void testNull() throws Exception {
String input = "{\"alice\" : null}";
JsonXMLStreamReader reader = new JsonXMLInputFactory().createXMLStreamReader(new StringReader(input));
verify(reader, XMLStreamConstants.START_DOCUMENT, null, null);
reader.next();
verify(reader, XMLStreamConstants.START_ELEMENT, "alice", null);
reader.next();
// verify(reader, XMLStreamConstants.CHARACTERS, null, null); // null is not reported
verify(reader, XMLStreamConstants.END_ELEMENT, "alice", null);
reader.next();
verify(reader, XMLStreamConstants.END_DOCUMENT, null, null);
reader.close();
}
}