/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.camel.converter.stream;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.Serializable;
import javax.xml.transform.Source;
import javax.xml.transform.sax.SAXSource;
import javax.xml.transform.stream.StreamSource;
import org.xml.sax.InputSource;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.StreamCache;
import org.apache.camel.converter.IOConverter;
import org.apache.camel.converter.jaxp.XmlConverter;
import org.apache.camel.impl.DefaultExchange;
/**
* Test cases for {@link StreamCacheConverter}
*/
public class StreamCacheConverterTest extends ContextTestSupport {
private static final String TEST_FILE = "org/apache/camel/converter/stream/test.xml";
private static final String MESSAGE = "<test>This is a test</test>";
private Exchange exchange;
@Override
protected void setUp() throws Exception {
super.setUp();
this.exchange = new DefaultExchange(context);
}
public void testConvertToStreamCache() throws Exception {
context.start();
ByteArrayInputStream inputStream = new ByteArrayInputStream(MESSAGE.getBytes());
StreamCache streamCache = StreamCacheConverter.convertToStreamCache(new SAXSource(new InputSource(inputStream)), exchange);
String message = exchange.getContext().getTypeConverter().convertTo(String.class, streamCache);
assertNotNull(message);
assertEquals("The converted message is wrong", MESSAGE, message);
}
public void testConvertToStreamCacheStreamSource() throws Exception {
context.start();
StreamSource source = new StreamSource(getTestFileStream());
StreamCache cache = StreamCacheConverter.convertToStreamCache(source, exchange);
//assert re-readability of the cached StreamSource
XmlConverter converter = new XmlConverter();
assertNotNull(converter.toString((Source)cache, null));
cache.reset();
assertNotNull(converter.toString((Source)cache, null));
}
public void testConvertToStreamCacheInputStream() throws Exception {
context.start();
InputStream is = getTestFileStream();
InputStream cache = (InputStream)StreamCacheConverter.convertToStreamCache(is, exchange);
//assert re-readability of the cached InputStream
String data = IOConverter.toString(cache, null);
cache.reset();
String data2 = IOConverter.toString(cache, null);
assertEquals(data, data2);
}
public void testConvertToStreamCacheInputStreamWithFileCache() throws Exception {
exchange.getContext().getStreamCachingStrategy().setSpoolThreshold(1);
context.start();
InputStream is = getTestFileStream();
InputStream cache = (InputStream)StreamCacheConverter.convertToStreamCache(is, exchange);
assertNotNull(IOConverter.toString(cache, null));
try {
// since the stream is closed you delete the temp file
// reset will not work any more
cache.reset();
exchange.getUnitOfWork().done(exchange);
fail("except the exception here");
} catch (Exception exception) {
// do nothing
}
}
public void testConvertToSerializable() throws Exception {
context.start();
InputStream is = getTestFileStream();
StreamCache cache = StreamCacheConverter.convertToStreamCache(is, exchange);
Serializable ser = StreamCacheConverter.convertToSerializable(cache, exchange);
assertNotNull(ser);
}
public void testConvertToByteArray() throws Exception {
context.start();
InputStream is = getTestFileStream();
StreamCache cache = StreamCacheConverter.convertToStreamCache(is, exchange);
byte[] bytes = StreamCacheConverter.convertToByteArray(cache, exchange);
assertNotNull(bytes);
}
protected InputStream getTestFileStream() {
InputStream answer = getClass().getClassLoader().getResourceAsStream(TEST_FILE);
assertNotNull("Should have found the file: " + TEST_FILE + " on the classpath", answer);
return answer;
}
@Override
public boolean isUseRouteBuilder() {
return false;
}
}