/*
* 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.StringWriter;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import org.junit.Assert;
import org.junit.Test;
public class JsonXMLStreamWriterTest {
/**
* <code><alice>bob</alice></code>
*/
@Test
public void testTextContent() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
//<code><alice>bob</alice></code>
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":\"bob\"}", result.toString());
}
/**
* <code><alice><bob>charlie</bob><david>edgar</david></alice></code>
*/
@Test
public void testNested() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeStartElement("bob");
writer.writeCharacters("charlie");
writer.writeEndElement();
writer.writeStartElement("david");
writer.writeCharacters("edgar");
writer.writeEndElement();
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":{\"bob\":\"charlie\",\"david\":\"edgar\"}}", result.toString());
}
/**
* <code><alice><bob>charlie</bob><bob>david</bob></alice></code>
*/
@Test
public void testArray() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, "bob");
writer.writeStartElement("bob");
writer.writeCharacters("charlie");
writer.writeEndElement();
writer.writeStartElement("bob");
writer.writeCharacters("david");
writer.writeEndElement();
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":{\"bob\":[\"charlie\",\"david\"]}}", result.toString());
}
/**
* <code><alice><bob>charlie</bob><bob>david</bob><edgar/></alice></code>
*/
@Test
public void testArray2() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET);
writer.writeStartElement("bob");
writer.writeCharacters("charlie");
writer.writeEndElement();
writer.writeStartElement("bob");
writer.writeCharacters("david");
writer.writeEndElement();
writer.writeEmptyElement("edgar");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":{\"bob\":[\"charlie\",\"david\"],\"edgar\":null}}", result.toString());
}
/**
* <code><alice></alice></code>
*/
@Test
public void testArray3() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, "bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":{\"bob\":[]}}", result.toString());
}
/**
* <code><alice charlie="david">bob</alice></code>
*/
@Test
public void testAttributes() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeAttribute("charlie", "david");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":{\"@charlie\":\"david\",\"$\":\"bob\"}}", result.toString());
}
/**
* <code><alice xmlns="http://some-namespace">bob</alice></code>
*/
@Test
public void testNamespaces() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.setDefaultNamespace("http://some-namespace");
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeDefaultNamespace("http://some-namespace");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":{\"@xmlns\":\"http://some-namespace\",\"$\":\"bob\"}}", result.toString());
}
/**
* <code><alice>bob</alice><alice>bob</alice></code>
*/
@Test
public void testRootArray() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, "alice");
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":[\"bob\",\"bob\"]}", result.toString());
}
/**
* <code><alice>bob</alice><alice>bob</alice></code>
*/
@Test
public void testRootArrayWithVirtualRoot() throws Exception {
StringWriter result = new StringWriter();
JsonXMLOutputFactory factory = new JsonXMLOutputFactory();
factory.setProperty(JsonXMLOutputFactory.PROP_VIRTUAL_ROOT, new QName("alice"));
XMLStreamWriter writer = factory.createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET, "alice");
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("[\"bob\",\"bob\"]", result.toString());
}
/**
* <code><alice>bob</alice><alice>bob</alice></code>
*/
@Test
public void testDocumentArray() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("[{\"alice\":\"bob\"},{\"alice\":\"bob\"}]", result.toString());
}
@Test
public void testSimpleValue() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeCharacters("bob");
writer.close();
Assert.assertEquals("\"bob\"", result.toString());
}
@Test
public void testSimpleValueArray() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET);
writer.writeCharacters("edgar");
writer.writeCharacters("david");
writer.close();
Assert.assertEquals("[\"edgar\",\"david\"]", result.toString());
}
@Test
public void testMixedValueArray() throws Exception {
StringWriter result = new StringWriter();
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeProcessingInstruction(JsonXMLStreamConstants.MULTIPLE_PI_TARGET);
writer.writeCharacters("edgar");
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeCharacters("bob");
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("[\"edgar\",{\"alice\":\"bob\"}]", result.toString());
}
@Test(expected = XMLStreamException.class)
public void testElementMultipleRoots() {
try {
XMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(new StringWriter());
writer.writeStartDocument();
writer.writeStartElement("foo");
writer.writeEndElement();
writer.writeStartElement("bar");
} catch (XMLStreamException ex) {
//empty
}
}
@Test
public void testNumber() throws Exception {
StringWriter result = new StringWriter();
JsonXMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeNumber(123.4);
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":123.4}", result.toString());
}
@Test
public void testBoolean() throws Exception {
StringWriter result = new StringWriter();
JsonXMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
writer.writeBoolean(true);
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":true}", result.toString());
}
@Test
public void testNull() throws Exception {
StringWriter result = new StringWriter();
JsonXMLStreamWriter writer = new JsonXMLOutputFactory().createXMLStreamWriter(result);
writer.writeStartDocument();
writer.writeStartElement("alice");
// writer.writeCharacters(null); // writing null is not allowed
writer.writeEndElement();
writer.writeEndDocument();
writer.close();
Assert.assertEquals("{\"alice\":null}", result.toString());
}
}