/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002, 2015 Oracle and/or its affiliates. All rights reserved.
*
*/
package com.sleepycat.bind.serial.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.Serializable;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import com.sleepycat.bind.EntityBinding;
import com.sleepycat.bind.serial.ClassCatalog;
import com.sleepycat.bind.serial.SerialBinding;
import com.sleepycat.bind.serial.SerialSerialBinding;
import com.sleepycat.bind.serial.TupleSerialMarshalledBinding;
import com.sleepycat.db.DatabaseEntry;
import com.sleepycat.util.FastOutputStream;
import com.sleepycat.util.test.TestBase;
/**
* @author Mark Hayes
*/
public class SerialBindingTest extends TestBase {
private ClassCatalog catalog;
private DatabaseEntry buffer;
private DatabaseEntry keyBuffer;
@Before
public void setUp() {
catalog = new TestClassCatalog();
buffer = new DatabaseEntry();
keyBuffer = new DatabaseEntry();
}
@After
public void tearDown() {
/* Ensure that GC can cleanup. */
catalog = null;
buffer = null;
keyBuffer = null;
}
private void primitiveBindingTest(Object val) {
Class cls = val.getClass();
SerialBinding binding = new SerialBinding(catalog, cls);
binding.objectToEntry(val, buffer);
assertTrue(buffer.getSize() > 0);
Object val2 = binding.entryToObject(buffer);
assertSame(cls, val2.getClass());
assertEquals(val, val2);
Object valWithWrongCls = (cls == String.class)
? ((Object) new Integer(0)) : ((Object) new String(""));
try {
binding.objectToEntry(valWithWrongCls, buffer);
} catch (IllegalArgumentException expected) {}
}
@Test
public void testPrimitiveBindings() {
primitiveBindingTest("abc");
primitiveBindingTest(new Character('a'));
primitiveBindingTest(new Boolean(true));
primitiveBindingTest(new Byte((byte) 123));
primitiveBindingTest(new Short((short) 123));
primitiveBindingTest(new Integer(123));
primitiveBindingTest(new Long(123));
primitiveBindingTest(new Float(123.123));
primitiveBindingTest(new Double(123.123));
}
@Test
public void testNullObjects() {
SerialBinding binding = new SerialBinding(catalog, null);
buffer.setSize(0);
binding.objectToEntry(null, buffer);
assertTrue(buffer.getSize() > 0);
assertEquals(null, binding.entryToObject(buffer));
}
@Test
public void testSerialSerialBinding() {
SerialBinding keyBinding = new SerialBinding(catalog, String.class);
SerialBinding valueBinding = new SerialBinding(catalog, String.class);
EntityBinding binding = new MySerialSerialBinding(keyBinding,
valueBinding);
String val = "key#value?indexKey";
binding.objectToData(val, buffer);
assertTrue(buffer.getSize() > 0);
binding.objectToKey(val, keyBuffer);
assertTrue(keyBuffer.getSize() > 0);
Object result = binding.entryToObject(keyBuffer, buffer);
assertEquals(val, result);
}
// also tests TupleSerialBinding since TupleSerialMarshalledBinding extends
// it
@Test
public void testTupleSerialMarshalledBinding() {
SerialBinding valueBinding = new SerialBinding(catalog,
MarshalledObject.class);
EntityBinding binding =
new TupleSerialMarshalledBinding(valueBinding);
MarshalledObject val = new MarshalledObject("abc", "primary",
"index1", "index2");
binding.objectToData(val, buffer);
assertTrue(buffer.getSize() > 0);
binding.objectToKey(val, keyBuffer);
assertEquals(val.expectedKeyLength(), keyBuffer.getSize());
Object result = binding.entryToObject(keyBuffer, buffer);
assertTrue(result instanceof MarshalledObject);
val = (MarshalledObject) result;
assertEquals("abc", val.getData());
assertEquals("primary", val.getPrimaryKey());
assertEquals("index1", val.getIndexKey1());
assertEquals("index2", val.getIndexKey2());
}
@Test
public void testBufferSize() {
CaptureSizeBinding binding =
new CaptureSizeBinding(catalog, String.class);
binding.objectToEntry("x", buffer);
assertEquals("x", binding.entryToObject(buffer));
assertEquals(FastOutputStream.DEFAULT_INIT_SIZE, binding.bufSize);
binding.setSerialBufferSize(1000);
binding.objectToEntry("x", buffer);
assertEquals("x", binding.entryToObject(buffer));
assertEquals(1000, binding.bufSize);
}
private static class CaptureSizeBinding extends SerialBinding {
int bufSize;
CaptureSizeBinding(ClassCatalog classCatalog, Class baseClass) {
super(classCatalog, baseClass);
}
@Override
public FastOutputStream getSerialOutput(Object object) {
FastOutputStream fos = super.getSerialOutput(object);
bufSize = fos.getBufferBytes().length;
return fos;
}
}
@Test
public void testBufferOverride() {
FastOutputStream out = new FastOutputStream(10);
CachedOutputBinding binding =
new CachedOutputBinding(catalog, String.class, out);
binding.used = false;
binding.objectToEntry("x", buffer);
assertEquals("x", binding.entryToObject(buffer));
assertTrue(binding.used);
binding.used = false;
binding.objectToEntry("aaaaaaaaaaaaaaaaaaaaaa", buffer);
assertEquals("aaaaaaaaaaaaaaaaaaaaaa", binding.entryToObject(buffer));
assertTrue(binding.used);
binding.used = false;
binding.objectToEntry("x", buffer);
assertEquals("x", binding.entryToObject(buffer));
assertTrue(binding.used);
}
private static class CachedOutputBinding extends SerialBinding {
FastOutputStream out;
boolean used;
CachedOutputBinding(ClassCatalog classCatalog,
Class baseClass,
FastOutputStream out) {
super(classCatalog, baseClass);
this.out = out;
}
@Override
public FastOutputStream getSerialOutput(Object object) {
out.reset();
used = true;
return out;
}
}
private static class MySerialSerialBinding extends SerialSerialBinding {
private MySerialSerialBinding(SerialBinding keyBinding,
SerialBinding valueBinding) {
super(keyBinding, valueBinding);
}
@Override
public Object entryToObject(Object keyInput, Object valueInput) {
return "" + keyInput + '#' + valueInput;
}
@Override
public Object objectToKey(Object object) {
String s = (String) object;
int i = s.indexOf('#');
if (i < 0 || i == s.length() - 1) {
throw new IllegalArgumentException(s);
} else {
return s.substring(0, i);
}
}
@Override
public Object objectToData(Object object) {
String s = (String) object;
int i = s.indexOf('#');
if (i < 0 || i == s.length() - 1) {
throw new IllegalArgumentException(s);
} else {
return s.substring(i + 1);
}
}
}
/**
* Tests that overriding SerialBinding.getClassLoader is possible. This is
* a crude test because to create a truly working class loader is a large
* undertaking.
*/
@Test
public void testClassloaderOverride() {
DatabaseEntry entry = new DatabaseEntry();
SerialBinding binding = new CustomLoaderBinding
(catalog, null, new FailureClassLoader());
try {
binding.objectToEntry(new MyClass(), entry);
binding.entryToObject(entry);
fail();
} catch (RuntimeException e) {
assertTrue(e.getMessage().startsWith("expect failure"));
}
}
private static class CustomLoaderBinding extends SerialBinding {
private final ClassLoader loader;
CustomLoaderBinding(ClassCatalog classCatalog,
Class baseClass,
ClassLoader loader) {
super(classCatalog, baseClass);
this.loader = loader;
}
@Override
public ClassLoader getClassLoader() {
return loader;
}
}
private static class FailureClassLoader extends ClassLoader {
@Override
public Class loadClass(String name) {
throw new RuntimeException("expect failure: " + name);
}
}
@SuppressWarnings("serial")
private static class MyClass implements Serializable {
}
}