/*
* 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.flume.source.jms;
import static org.junit.Assert.*;
import static org.mockito.Matchers.*;
import static org.mockito.Mockito.*;
import java.io.ByteArrayOutputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Map;
import javax.jms.BytesMessage;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.ObjectMessage;
import javax.jms.TextMessage;
import org.apache.flume.Context;
import org.apache.flume.Event;
import org.junit.Before;
import org.junit.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import com.google.common.base.Charsets;
import com.google.common.collect.Maps;
public class TestDefaultJMSMessageConverter {
private static final String TEXT = "text";
private static final byte[] BYTES = TEXT.getBytes(Charsets.UTF_8);
private Context context;
private Message message;
private Map<String, String> headers;
private JMSMessageConverter converter;
@Before
public void setUp() throws Exception {
headers = Maps.newHashMap();
context = new Context();
converter = new DefaultJMSMessageConverter.Builder().build(context);
}
void createTextMessage() throws Exception {
TextMessage message = mock(TextMessage.class);
when(message.getText()).thenReturn(TEXT);
this.message = message;
}
void createNullTextMessage() throws Exception {
TextMessage message = mock(TextMessage.class);
when(message.getText()).thenReturn(null);
this.message = message;
}
void createBytesMessage() throws Exception {
BytesMessage message = mock(BytesMessage.class);
when(message.getBodyLength()).thenReturn((long)BYTES.length);
when(message.readBytes(any(byte[].class))).then(new Answer<Integer>() {
@Override
public Integer answer(InvocationOnMock invocation) throws Throwable {
byte[] buffer = (byte[])invocation.getArguments()[0];
if (buffer != null) {
assertEquals(buffer.length, BYTES.length);
System.arraycopy(BYTES, 0, buffer, 0, BYTES.length);
}
return BYTES.length;
}
});
this.message = message;
}
void createObjectMessage() throws Exception {
ObjectMessage message = mock(ObjectMessage.class);
when(message.getObject()).thenReturn(TEXT);
this.message = message;
}
void createHeaders() throws Exception {
final Iterator<String> keys = headers.keySet().iterator();
when(message.getPropertyNames()).thenReturn(new Enumeration<Object>() {
@Override
public boolean hasMoreElements() {
return keys.hasNext();
}
@Override
public Object nextElement() {
return keys.next();
}
});
when(message.getStringProperty(anyString())).then(new Answer<String>() {
@Override
public String answer(InvocationOnMock invocation) throws Throwable {
return headers.get(invocation.getArguments()[0]);
}
});
}
@Test
public void testTextMessage() throws Exception {
createTextMessage();
headers.put("key1", "value1");
headers.put("key2", "value2");
createHeaders();
Event event = converter.convert(message).iterator().next();
assertEquals(headers, event.getHeaders());
assertEquals(TEXT, new String(event.getBody(), Charsets.UTF_8));
}
@Test
public void testNullTextMessage() throws Exception {
createNullTextMessage();
headers.put("key1", "value1");
headers.put("key2", "value2");
createHeaders();
Event event = converter.convert(message).iterator().next();
assertEquals(headers, event.getHeaders());
// In case of a null text message, the event's body will be empty due to
// SimpleEvent's body not updated with a valid text message.
assertEquals(event.getBody().length, 0);
}
@Test
public void testBytesMessage() throws Exception {
createBytesMessage();
headers.put("key1", "value1");
headers.put("key2", "value2");
createHeaders();
Event event = converter.convert(message).iterator().next();
assertEquals(headers, event.getHeaders());
assertArrayEquals(BYTES, event.getBody());
}
@Test(expected = JMSException.class)
public void testBytesMessageTooLarge() throws Exception {
createBytesMessage();
when(((BytesMessage)message).getBodyLength()).thenReturn(Long.MAX_VALUE);
createHeaders();
converter.convert(message);
}
@Test(expected = JMSException.class)
public void testBytesMessagePartialReturn() throws Exception {
createBytesMessage();
when(((BytesMessage)message).readBytes(any(byte[].class)))
.thenReturn(BYTES.length + 1);
createHeaders();
converter.convert(message);
}
@Test
public void testObjectMessage() throws Exception {
createObjectMessage();
headers.put("key1", "value1");
headers.put("key2", "value2");
createHeaders();
Event event = converter.convert(message).iterator().next();
assertEquals(headers, event.getHeaders());
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(bos);
out.writeObject(TEXT);
assertArrayEquals(bos.toByteArray(), event.getBody());
}
@Test
public void testNoHeaders() throws Exception {
createTextMessage();
createHeaders();
Event event = converter.convert(message).iterator().next();
assertEquals(Collections.EMPTY_MAP, event.getHeaders());
assertEquals(TEXT, new String(event.getBody(), Charsets.UTF_8));
}
}