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Re-introduced custom StaxSource and StaxResult for Spring Web Services

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This commit is contained in:
Juergen Hoeller
2013-11-26 01:40:34 +01:00
parent e6952f41b7
commit 1ee816b473
6 changed files with 623 additions and 39 deletions
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113
spring-core/src/main/java/org/springframework/util/xml/StaxResult.java Normal file
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@@ -0,0 +1,113 @@
/*
* Copyright 2002-2013 the original author or authors.
*
* 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.springframework.util.xml;
import javax.xml.stream.XMLEventFactory;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.sax.SAXResult;
import org.xml.sax.ContentHandler;
/**
* Implementation of the {@code Result} tagging interface for StAX writers. Can be constructed with
* an {@code XMLEventConsumer} or an {@code XMLStreamWriter}.
*
* <p>This class is necessary because there is no implementation of {@code Source} for StaxReaders
* in JAXP 1.3. There is a {@code StAXResult} in JAXP 1.4 (JDK 1.6), but this class is kept around
* for backwards compatibility reasons.
*
* <p>Even though {@code StaxResult} extends from {@code SAXResult}, calling the methods of
* {@code SAXResult} is <strong>not supported</strong>. In general, the only supported operation
* on this class is to use the {@code ContentHandler} obtained via {@link #getHandler()} to parse an
* input source using an {@code XMLReader}. Calling {@link #setHandler(org.xml.sax.ContentHandler)}
* will result in {@code UnsupportedOperationException}s.
*
* @author Arjen Poutsma
* @since 3.0
* @see XMLEventWriter
* @see XMLStreamWriter
* @see javax.xml.transform.Transformer
*/
class StaxResult extends SAXResult {
private XMLEventWriter eventWriter;
private XMLStreamWriter streamWriter;
/**
* Construct a new instance of the {@code StaxResult} with the specified {@code XMLStreamWriter}.
* @param streamWriter the {@code XMLStreamWriter} to write to
*/
StaxResult(XMLStreamWriter streamWriter) {
super.setHandler(new StaxStreamContentHandler(streamWriter));
this.streamWriter = streamWriter;
}
/**
* Construct a new instance of the {@code StaxResult} with the specified {@code XMLEventWriter}.
* @param eventWriter the {@code XMLEventWriter} to write to
*/
StaxResult(XMLEventWriter eventWriter) {
super.setHandler(new StaxEventContentHandler(eventWriter));
this.eventWriter = eventWriter;
}
/**
* Construct a new instance of the {@code StaxResult} with the specified {@code XMLEventWriter}
* and {@code XMLEventFactory}.
* @param eventWriter the {@code XMLEventWriter} to write to
* @param eventFactory the {@code XMLEventFactory} to use for creating events
*/
StaxResult(XMLEventWriter eventWriter, XMLEventFactory eventFactory) {
super.setHandler(new StaxEventContentHandler(eventWriter, eventFactory));
this.eventWriter = eventWriter;
}
/**
* Return the {@code XMLEventWriter} used by this {@code StaxResult}. If this {@code StaxResult}
* was created with an {@code XMLStreamWriter}, the result will be {@code null}.
* @return the StAX event writer used by this result
* @see #StaxResult(javax.xml.stream.XMLEventWriter)
*/
XMLEventWriter getXMLEventWriter() {
return this.eventWriter;
}
/**
* Return the {@code XMLStreamWriter} used by this {@code StaxResult}. If this {@code StaxResult}
* was created with an {@code XMLEventConsumer}, the result will be {@code null}.
* @return the StAX stream writer used by this result
* @see #StaxResult(javax.xml.stream.XMLStreamWriter)
*/
XMLStreamWriter getXMLStreamWriter() {
return this.streamWriter;
}
/**
* Throws an {@code UnsupportedOperationException}.
* @throws UnsupportedOperationException always
*/
@Override
public void setHandler(ContentHandler handler) {
throw new UnsupportedOperationException("setHandler is not supported");
}
}

117
spring-core/src/main/java/org/springframework/util/xml/StaxSource.java Normal file
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@@ -0,0 +1,117 @@
/*
* Copyright 2002-2013 the original author or authors.
*
* 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.springframework.util.xml;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.sax.SAXSource;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
/**
* Implementation of the {@code Source} tagging interface for StAX readers. Can be constructed with
* an {@code XMLEventReader} or an {@code XMLStreamReader}.
*
* <p>This class is necessary because there is no implementation of {@code Source} for StAX Readers
* in JAXP 1.3. There is a {@code StAXSource} in JAXP 1.4 (JDK 1.6), but this class is kept around
* for backwards compatibility reasons.
*
* <p>Even though {@code StaxSource} extends from {@code SAXSource}, calling the methods of
* {@code SAXSource} is <strong>not supported</strong>. In general, the only supported operation
* on this class is to use the {@code XMLReader} obtained via {@link #getXMLReader()} to parse the
* input source obtained via {@link #getInputSource()}. Calling {@link #setXMLReader(XMLReader)}
* or {@link #setInputSource(InputSource)} will result in {@code UnsupportedOperationException}s.
*
* @author Arjen Poutsma
* @since 3.0
* @see XMLEventReader
* @see XMLStreamReader
* @see javax.xml.transform.Transformer
*/
class StaxSource extends SAXSource {
private XMLEventReader eventReader;
private XMLStreamReader streamReader;
/**
* Construct a new instance of the {@code StaxSource} with the specified {@code XMLStreamReader}.
* The supplied stream reader must be in {@code XMLStreamConstants.START_DOCUMENT} or
* {@code XMLStreamConstants.START_ELEMENT} state.
* @param streamReader the {@code XMLStreamReader} to read from
* @throws IllegalStateException if the reader is not at the start of a document or element
*/
StaxSource(XMLStreamReader streamReader) {
super(new StaxStreamXMLReader(streamReader), new InputSource());
this.streamReader = streamReader;
}
/**
* Construct a new instance of the {@code StaxSource} with the specified {@code XMLEventReader}.
* The supplied event reader must be in {@code XMLStreamConstants.START_DOCUMENT} or
* {@code XMLStreamConstants.START_ELEMENT} state.
* @param eventReader the {@code XMLEventReader} to read from
* @throws IllegalStateException if the reader is not at the start of a document or element
*/
StaxSource(XMLEventReader eventReader) {
super(new StaxEventXMLReader(eventReader), new InputSource());
this.eventReader = eventReader;
}
/**
* Return the {@code XMLEventReader} used by this {@code StaxSource}. If this {@code StaxSource}
* was created with an {@code XMLStreamReader}, the result will be {@code null}.
* @return the StAX event reader used by this source
* @see StaxSource#StaxSource(javax.xml.stream.XMLEventReader)
*/
XMLEventReader getXMLEventReader() {
return this.eventReader;
}
/**
* Return the {@code XMLStreamReader} used by this {@code StaxSource}. If this {@code StaxSource}
* was created with an {@code XMLEventReader}, the result will be {@code null}.
* @return the StAX event reader used by this source
* @see StaxSource#StaxSource(javax.xml.stream.XMLEventReader)
*/
XMLStreamReader getXMLStreamReader() {
return this.streamReader;
}
/**
* Throws an {@code UnsupportedOperationException}.
* @throws UnsupportedOperationException always
*/
@Override
public void setInputSource(InputSource inputSource) {
throw new UnsupportedOperationException("setInputSource is not supported");
}
/**
* Throws an {@code UnsupportedOperationException}.
* @throws UnsupportedOperationException always
*/
@Override
public void setXMLReader(XMLReader reader) {
throw new UnsupportedOperationException("setXMLReader is not supported");
}
}

144
spring-core/src/main/java/org/springframework/util/xml/StaxUtils.java
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@@ -30,8 +30,6 @@ import javax.xml.transform.stax.StAXSource;
import org.xml.sax.ContentHandler;
import org.xml.sax.XMLReader;
import org.springframework.util.Assert;
/**
* Convenience methods for working with the StAX API. Partly historic due to JAXP 1.3 compatibility;
* as of Spring 4.0, relying on JAXP 1.4 as included in JDK 1.6 and higher.
@@ -58,19 +56,75 @@ public abstract class StaxUtils {
* Create a JAXP 1.4 a {@link StAXSource} for the given {@link XMLEventReader}.
* @param eventReader the StAX event reader
* @return a source wrapping the {@code eventReader}
* @throws XMLStreamException in case of StAX errors
*/
public static Source createStaxSource(XMLEventReader eventReader) throws XMLStreamException {
return new StAXSource(eventReader);
}
/**
* Indicate whether the given {@link Source} is a StAX Source.
* @return {@code true} if {@code source} is a JAXP 1.4 {@link StAXSource};
* {@code false} otherwise.
* Create a custom, non-JAXP 1.4 StAX {@link Source} for the given {@link XMLStreamReader}.
* @param streamReader the StAX stream reader
* @return a source wrapping the {@code streamReader}
*/
public static Source createCustomStaxSource(XMLStreamReader streamReader) {
return new StaxSource(streamReader);
}
/**
* Create a custom, non-JAXP 1.4 StAX {@link Source} for the given {@link XMLEventReader}.
* @param eventReader the StAX event reader
* @return a source wrapping the {@code eventReader}
*/
public static Source createCustomStaxSource(XMLEventReader eventReader) {
return new StaxSource(eventReader);
}
/**
* Indicate whether the given {@link Source} is a JAXP 1.4 StAX Source or
* custom StAX Source.
* @return {@code true} if {@code source} is a JAXP 1.4 {@link StAXSource} or
* custom StAX Source; {@code false} otherwise
*/
public static boolean isStaxSource(Source source) {
return (source instanceof StAXSource);
return (source instanceof StAXSource || source instanceof StaxSource);
}
/**
* Return the {@link XMLStreamReader} for the given StAX Source.
* @param source a JAXP 1.4 {@link StAXSource}
* @return the {@link XMLStreamReader}
* @throws IllegalArgumentException if {@code source} isn't a JAXP 1.4 {@link StAXSource}
* or custom StAX Source
*/
public static XMLStreamReader getXMLStreamReader(Source source) {
if (source instanceof StAXSource) {
return ((StAXSource) source).getXMLStreamReader();
}
else if (source instanceof StaxSource) {
return ((StaxSource) source).getXMLStreamReader();
}
else {
throw new IllegalArgumentException("Source '" + source + "' is neither StaxSource nor StAXSource");
}
}
/**
* Return the {@link XMLEventReader} for the given StAX Source.
* @param source a JAXP 1.4 {@link StAXSource}
* @return the {@link XMLEventReader}
* @throws IllegalArgumentException if {@code source} isn't a JAXP 1.4 {@link StAXSource}
* or custom StAX Source
*/
public static XMLEventReader getXMLEventReader(Source source) {
if (source instanceof StAXSource) {
return ((StAXSource) source).getXMLEventReader();
}
else if (source instanceof StaxSource) {
return ((StaxSource) source).getXMLEventReader();
}
else {
throw new IllegalArgumentException("Source '" + source + "' is neither StaxSource nor StAXSource");
}
}
/**
@@ -86,41 +140,37 @@ public abstract class StaxUtils {
* Create a JAXP 1.4 {@link StAXResult} for the given {@link XMLEventWriter}.
* @param eventWriter the StAX event writer
* @return a result wrapping {@code streamReader}
* @throws XMLStreamException in case of StAX errors
*/
public static Result createStaxResult(XMLEventWriter eventWriter) throws XMLStreamException {
public static Result createStaxResult(XMLEventWriter eventWriter) {
return new StAXResult(eventWriter);
}
/**
* Indicate whether the given {@link javax.xml.transform.Result} is a StAX Result.
* @return {@code true} if {@code result} is a JAXP 1.4 {@link StAXResult};
* {@code false} otherwise.
* Create a custom, non-JAXP 1.4 StAX {@link Result} for the given {@link XMLStreamWriter}.
* @param streamWriter the StAX stream writer
* @return a source wrapping the {@code streamWriter}
*/
public static Result createCustomStaxResult(XMLStreamWriter streamWriter) {
return new StaxResult(streamWriter);
}
/**
* Create a custom, non-JAXP 1.4 StAX {@link Result} for the given {@link XMLEventWriter}.
* @param eventWriter the StAX event writer
* @return a source wrapping the {@code eventWriter}
*/
public static Result createCustomStaxResult(XMLEventWriter eventWriter) {
return new StaxResult(eventWriter);
}
/**
* Indicate whether the given {@link Result} is a JAXP 1.4 StAX Result or
* custom StAX Result.
* @return {@code true} if {@code result} is a JAXP 1.4 {@link StAXResult} or
* custom StAX Result; {@code false} otherwise
*/
public static boolean isStaxResult(Result result) {
return (result instanceof StAXResult);
}
/**
* Return the {@link XMLStreamReader} for the given StAX Source.
* @param source a JAXP 1.4 {@link StAXSource}
* @return the {@link XMLStreamReader}
* @throws IllegalArgumentException if {@code source} isn't a JAXP 1.4 {@link StAXSource}
*/
public static XMLStreamReader getXMLStreamReader(Source source) {
Assert.isInstanceOf(StAXSource.class, source);
return ((StAXSource) source).getXMLStreamReader();
}
/**
* Return the {@link XMLEventReader} for the given StAX Source.
* @param source a JAXP 1.4 {@link StAXSource}
* @return the {@link XMLEventReader}
* @throws IllegalArgumentException if {@code source} isn't a JAXP 1.4 {@link StAXSource}
*/
public static XMLEventReader getXMLEventReader(Source source) {
Assert.isInstanceOf(StAXSource.class, source);
return ((StAXSource) source).getXMLEventReader();
return (result instanceof StAXResult || result instanceof StaxResult);
}
/**
@@ -128,10 +178,18 @@ public abstract class StaxUtils {
* @param result a JAXP 1.4 {@link StAXResult}
* @return the {@link XMLStreamReader}
* @throws IllegalArgumentException if {@code source} isn't a JAXP 1.4 {@link StAXResult}
* or custom StAX Result
*/
public static XMLStreamWriter getXMLStreamWriter(Result result) {
Assert.isInstanceOf(StAXResult.class, result);
return ((StAXResult) result).getXMLStreamWriter();
if (result instanceof StAXResult) {
return ((StAXResult) result).getXMLStreamWriter();
}
else if (result instanceof StaxResult) {
return ((StaxResult) result).getXMLStreamWriter();
}
else {
throw new IllegalArgumentException("Result '" + result + "' is neither StaxResult nor StAXResult");
}
}
/**
@@ -139,10 +197,18 @@ public abstract class StaxUtils {
* @param result a JAXP 1.4 {@link StAXResult}
* @return the {@link XMLStreamReader}
* @throws IllegalArgumentException if {@code source} isn't a JAXP 1.4 {@link StAXResult}
* or custom StAX Result
*/
public static XMLEventWriter getXMLEventWriter(Result result) {
Assert.isInstanceOf(StAXResult.class, result);
return ((StAXResult) result).getXMLEventWriter();
if (result instanceof StAXResult) {
return ((StAXResult) result).getXMLEventWriter();
}
else if (result instanceof StaxResult) {
return ((StaxResult) result).getXMLEventWriter();
}
else {
throw new IllegalArgumentException("Result '" + result + "' is neither StaxResult nor StAXResult");
}
}
/**

81
spring-core/src/test/java/org/springframework/util/xml/StaxResultTests.java Normal file
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@@ -0,0 +1,81 @@
/*
* Copyright 2002-2009 the original author or authors.
*
* 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.springframework.util.xml;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamSource;
import org.junit.Before;
import org.junit.Test;
import static org.custommonkey.xmlunit.XMLAssert.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
/**
* @author Arjen Poutsma
*/
public class StaxResultTests {
private static final String XML = "<root xmlns='namespace'><child/></root>";
private Transformer transformer;
private XMLOutputFactory inputFactory;
@Before
public void setUp() throws Exception {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
transformer = transformerFactory.newTransformer();
inputFactory = XMLOutputFactory.newInstance();
}
@Test
public void streamWriterSource() throws Exception {
StringWriter stringWriter = new StringWriter();
XMLStreamWriter streamWriter = inputFactory.createXMLStreamWriter(stringWriter);
Reader reader = new StringReader(XML);
Source source = new StreamSource(reader);
StaxResult result = new StaxResult(streamWriter);
assertEquals("Invalid streamWriter returned", streamWriter, result.getXMLStreamWriter());
assertNull("EventWriter returned", result.getXMLEventWriter());
transformer.transform(source, result);
assertXMLEqual("Invalid result", XML, stringWriter.toString());
}
@Test
public void eventWriterSource() throws Exception {
StringWriter stringWriter = new StringWriter();
XMLEventWriter eventWriter = inputFactory.createXMLEventWriter(stringWriter);
Reader reader = new StringReader(XML);
Source source = new StreamSource(reader);
StaxResult result = new StaxResult(eventWriter);
assertEquals("Invalid eventWriter returned", eventWriter, result.getXMLEventWriter());
assertNull("StreamWriter returned", result.getXMLStreamWriter());
transformer.transform(source, result);
assertXMLEqual("Invalid result", XML, stringWriter.toString());
}
}

110
spring-core/src/test/java/org/springframework/util/xml/StaxSourceTests.java Normal file
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@@ -0,0 +1,110 @@
/*
* Copyright 2002-2012 the original author or authors.
*
* 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.springframework.util.xml;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.stream.StreamResult;
import org.junit.Before;
import org.junit.Test;
import org.w3c.dom.Document;
import org.xml.sax.InputSource;
import static org.custommonkey.xmlunit.XMLAssert.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
/**
* @author Arjen Poutsma
*/
public class StaxSourceTests {
private static final String XML = "<root xmlns='namespace'><child/></root>";
private Transformer transformer;
private XMLInputFactory inputFactory;
private DocumentBuilder documentBuilder;
@Before
public void setUp() throws Exception {
TransformerFactory transformerFactory = TransformerFactory.newInstance();
transformer = transformerFactory.newTransformer();
inputFactory = XMLInputFactory.newInstance();
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
documentBuilderFactory.setNamespaceAware(true);
documentBuilder = documentBuilderFactory.newDocumentBuilder();
}
@Test
public void streamReaderSourceToStreamResult() throws Exception {
XMLStreamReader streamReader = inputFactory.createXMLStreamReader(new StringReader(XML));
StaxSource source = new StaxSource(streamReader);
assertEquals("Invalid streamReader returned", streamReader, source.getXMLStreamReader());
assertNull("EventReader returned", source.getXMLEventReader());
StringWriter writer = new StringWriter();
transformer.transform(source, new StreamResult(writer));
assertXMLEqual("Invalid result", XML, writer.toString());
}
@Test
public void streamReaderSourceToDOMResult() throws Exception {
XMLStreamReader streamReader = inputFactory.createXMLStreamReader(new StringReader(XML));
StaxSource source = new StaxSource(streamReader);
assertEquals("Invalid streamReader returned", streamReader, source.getXMLStreamReader());
assertNull("EventReader returned", source.getXMLEventReader());
Document expected = documentBuilder.parse(new InputSource(new StringReader(XML)));
Document result = documentBuilder.newDocument();
transformer.transform(source, new DOMResult(result));
assertXMLEqual("Invalid result", expected, result);
}
@Test
public void eventReaderSourceToStreamResult() throws Exception {
XMLEventReader eventReader = inputFactory.createXMLEventReader(new StringReader(XML));
StaxSource source = new StaxSource(eventReader);
assertEquals("Invalid eventReader returned", eventReader, source.getXMLEventReader());
assertNull("StreamReader returned", source.getXMLStreamReader());
StringWriter writer = new StringWriter();
transformer.transform(source, new StreamResult(writer));
assertXMLEqual("Invalid result", XML, writer.toString());
}
@Test
public void eventReaderSourceToDOMResult() throws Exception {
XMLEventReader eventReader = inputFactory.createXMLEventReader(new StringReader(XML));
StaxSource source = new StaxSource(eventReader);
assertEquals("Invalid eventReader returned", eventReader, source.getXMLEventReader());
assertNull("StreamReader returned", source.getXMLStreamReader());
Document expected = documentBuilder.parse(new InputSource(new StringReader(XML)));
Document result = documentBuilder.newDocument();
transformer.transform(source, new DOMResult(result));
assertXMLEqual("Invalid result", expected, result);
}
}

97
spring-core/src/test/java/org/springframework/util/xml/StaxUtilsTests.java Normal file
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@@ -0,0 +1,97 @@
/*
* Copyright 2002-2010 the original author or authors.
*
* 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.springframework.util.xml;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.dom.DOMResult;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stax.StAXResult;
import javax.xml.transform.stax.StAXSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author Arjen Poutsma
*/
public class StaxUtilsTests {
@Test
public void isStaxSourceInvalid() throws Exception {
assertFalse("A StAX Source", StaxUtils.isStaxSource(new DOMSource()));
assertFalse("A StAX Source", StaxUtils.isStaxSource(new SAXSource()));
assertFalse("A StAX Source", StaxUtils.isStaxSource(new StreamSource()));
}
@Test
public void isStaxSource() throws Exception {
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
String expected = "<element/>";
XMLStreamReader streamReader = inputFactory.createXMLStreamReader(new StringReader(expected));
Source source = StaxUtils.createCustomStaxSource(streamReader);
assertTrue("Not a StAX Source", StaxUtils.isStaxSource(source));
}
@Test
public void isStaxSourceJaxp14() throws Exception {
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
String expected = "<element/>";
XMLStreamReader streamReader = inputFactory.createXMLStreamReader(new StringReader(expected));
StAXSource source = new StAXSource(streamReader);
assertTrue("Not a StAX Source", StaxUtils.isStaxSource(source));
}
@Test
public void isStaxResultInvalid() throws Exception {
assertFalse("A StAX Result", StaxUtils.isStaxResult(new DOMResult()));
assertFalse("A StAX Result", StaxUtils.isStaxResult(new SAXResult()));
assertFalse("A StAX Result", StaxUtils.isStaxResult(new StreamResult()));
}
@Test
public void isStaxResult() throws Exception {
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
XMLStreamWriter streamWriter = outputFactory.createXMLStreamWriter(new StringWriter());
Result result = StaxUtils.createCustomStaxResult(streamWriter);
assertTrue("Not a StAX Result", StaxUtils.isStaxResult(result));
}
@Test
public void isStaxResultJaxp14() throws Exception {
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
XMLStreamWriter streamWriter = outputFactory.createXMLStreamWriter(new StringWriter());
StAXResult result = new StAXResult(streamWriter);
assertTrue("Not a StAX Result", StaxUtils.isStaxResult(result));
}
}