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/*
* Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* 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. See accompanying
* LICENSE file.
*/
package com.gemstone.gemfire.internal;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.DataOutputStream;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.ArrayList;
import junit.framework.TestCase;
import com.gemstone.gemfire.cache.Cache;
import com.gemstone.gemfire.cache.CacheFactory;
import com.gemstone.gemfire.internal.cache.DistributedPutAllOperation.EntryVersionsList;
import com.gemstone.gemfire.internal.shared.Version;
import com.gemstone.org.jgroups.util.VersionedStreamable;
/**
* Test the DSFID serialization framework added for rolling upgrades in 7.1
*
* @author tnomulwar
*
*
*/
public class BackwardCompatibilitySerializationJUnitTest extends TestCase {
private transient ByteArrayOutputStream baos;
private transient ByteArrayInputStream bais;
public static boolean toDataCalled = false;
public static boolean toDataPre66Called = false;
public static boolean toDataPre70called = false;
public static boolean fromDataCalled = false;
public static boolean fromDataPre66Called = false;
public static boolean fromDataPre70Called = false;
public TestMessage msg = new TestMessage();
public BackwardCompatibilitySerializationJUnitTest() {
}
public void setUp() {
baos = new ByteArrayOutputStream();
// register TestMessage using an existing dsfid
DSFIDFactory.registerDSFID(DataSerializableFixedID.PUTALL_VERSIONS_LIST,
TestMessage.class);
}
public void tearDown() {
resetFlags();
// reset the class mapped to the dsfid
DSFIDFactory.registerDSFID(DataSerializableFixedID.PUTALL_VERSIONS_LIST,
EntryVersionsList.class);
this.baos = null;
this.bais = null;
}
/**
* Test if correct toData/toDataPreXXX is called when changes are made to the
* TestMessage in 66 and 70 and version of peer is 56
*
* @throws Exception
*/
public void testToDataFromHigherVersionToLower() throws Exception {
DataOutputStream dos = new VersionedDataOutputStream(new DataOutputStream(
baos), Version.GFE_56);
InternalDataSerializer.writeDSFID(msg, dos);
assertTrue(toDataPre66Called);
assertFalse(toDataCalled);
}
/**
* Test if correct toData/toDataXXX is called when changes are made to the
* TestMessage in 66 and 70 and version of peer is 70
*
* @throws Exception
*/
public void testToDataFromLowerVersionToHigher() throws Exception {
DataOutputStream dos = new VersionedDataOutputStream(new DataOutputStream(
baos), Version.GFE_701);
InternalDataSerializer.writeDSFID(msg, dos);
assertTrue(toDataCalled);
}
/**
* Test if correct fromData/fromDataXXX is called when changes are made to the
* TestMessage in 66 and 70 and version of peer is 70
*
* @throws Exception
*/
public void testFromDataFromHigherVersionToLower() throws Exception {
InternalDataSerializer.writeDSFID(msg, new DataOutputStream(baos));
this.bais = new ByteArrayInputStream(baos.toByteArray());
DataInputStream dis = new VersionedDataInputStream(
new DataInputStream(bais), Version.GFE_701);
Object o = InternalDataSerializer.basicReadObject(dis);
assertTrue(o instanceof TestMessage);
assertTrue(fromDataCalled);
}
/**
* Test if correct fromData/fromDataXXX is called when changes are made to the
* TestMessage in 66 and 70 and version of peer is 56
*
* @throws Exception
*/
public void testFromDataFromLowerVersionToHigher() throws Exception {
InternalDataSerializer.writeDSFID(msg, new DataOutputStream(baos));
this.bais = new ByteArrayInputStream(baos.toByteArray());
DataInputStream dis = new VersionedDataInputStream(
new DataInputStream(bais), Version.GFE_56);
Object o = InternalDataSerializer.basicReadObject(dis);
assertTrue(o instanceof TestMessage);
assertTrue(fromDataPre66Called);
}
/**
* Test if all messages implement toDataPreXXX and fromDataPreXXX if the
* message has been upgraded in any of the versions
*
* @throws Exception
*/
public void testAllMessages() throws Exception {
// list of msgs not created using reflection
// taken from DSFIDFactory.create()
ArrayList constdsfids = new ArrayList();
constdsfids.add(new Byte(DataSerializableFixedID.REGION).intValue());
constdsfids.add(new Byte(DataSerializableFixedID.END_OF_STREAM_TOKEN)
.intValue());
constdsfids.add(new Byte(DataSerializableFixedID.DLOCK_REMOTE_TOKEN)
.intValue());
constdsfids
.add(new Byte(DataSerializableFixedID.TRANSACTION_ID).intValue());
constdsfids.add(new Byte(DataSerializableFixedID.INTEREST_RESULT_POLICY)
.intValue());
constdsfids.add(new Byte(DataSerializableFixedID.UNDEFINED).intValue());
constdsfids.add(new Byte(DataSerializableFixedID.RESULTS_BAG).intValue());
constdsfids.add(new Byte(DataSerializableFixedID.GATEWAY_EVENT_IMPL_66)
.intValue());
constdsfids.add(new Byte(DataSerializableFixedID.GFXD_TYPE).intValue());
constdsfids.add(new Byte(DataSerializableFixedID.GFXD_DVD_OBJECT)
.intValue());
constdsfids.add(new Byte(DataSerializableFixedID.GFXD_GLOBAL_ROWLOC)
.intValue());
constdsfids.add(new Byte(DataSerializableFixedID.GFXD_GEMFIRE_KEY)
.intValue());
constdsfids.add(new Byte(DataSerializableFixedID.GFXD_FORMATIBLEBITSET)
.intValue());
constdsfids
.add(new Short(DataSerializableFixedID.TOKEN_INVALID).intValue());
constdsfids.add(new Short(DataSerializableFixedID.TOKEN_LOCAL_INVALID)
.intValue());
constdsfids.add(new Short(DataSerializableFixedID.TOKEN_DESTROYED)
.intValue());
constdsfids
.add(new Short(DataSerializableFixedID.TOKEN_REMOVED).intValue());
constdsfids.add(new Short(DataSerializableFixedID.TOKEN_REMOVED2)
.intValue());
constdsfids.add(new Short(DataSerializableFixedID.TOKEN_TOMBSTONE)
.intValue());
for (int i = 0; i < 256; i++) {
Constructor cons = DSFIDFactory.getDsfidmap()[i];
if (!constdsfids.contains(i - Byte.MAX_VALUE - 1) && cons != null) {
Object ds = cons.newInstance((Object[]) null);
checkSupportForRollingUpgrade(ds);
}
}
// some msgs require distributed system
Cache c = new CacheFactory().create();
for (Object o : DSFIDFactory.getDsfidmap2().getValues()) {
Constructor cons = (Constructor) o;
if (cons != null) {
DataSerializableFixedID ds = (DataSerializableFixedID) cons
.newInstance((Object[]) null);
checkSupportForRollingUpgrade(ds);
}
}
c.close();
}
private void checkSupportForRollingUpgrade(Object ds) {
Version[] versions = null;
if (ds instanceof SerializationVersions) {
versions = ((SerializationVersions)ds).getSerializationVersions();
} else {
short[] ordinals = ((VersionedStreamable)ds).getSerializationVersions();
if (ordinals != null && ordinals.length > 0) {
versions = new Version[ordinals.length];
for (int i=ordinals.length; i>=0; i--) {
versions[i] = Version.fromOrdinalOrCurrent(ordinals[i]);
}
}
}
if (versions != null && versions.length > 0) {
for (int i = 0; i < versions.length; i++) {
try {
ds.getClass().getMethod(
"toDataPre_" + versions[i].getMethodSuffix(),
new Class[] { DataOutput.class });
ds.getClass().getMethod(
"fromDataPre_" + versions[i].getMethodSuffix(),
new Class[] { DataInput.class });
} catch (NoSuchMethodException e) {
fail("toDataPreXXX or fromDataPreXXX for previous versions not found "
+ e.getMessage());
}
}
} else {
for(Method method : ds.getClass().getMethods()) {
if(method.getName().startsWith("toDataPre")) {
fail("Found backwards compatible toData, but class does not implement getSerializationVersions()" + method);
} else if(method.getName().startsWith("fromDataPre")) {
fail("Found backwards compatible fromData, but class does not implement getSerializationVersions()" + method);
}
}
}
}
private void resetFlags() {
toDataCalled = false;
toDataPre66Called = false;
toDataPre70called = false;
fromDataCalled = false;
fromDataPre66Called = false;
fromDataPre70Called = false;
}
public static final class TestMessage implements DataSerializableFixedID {
/** The versions in which this message was modified */
private static final Version[] dsfidVersions = new Version[] {
Version.GFE_66, Version.GFE_70 };
public TestMessage() {
}
@Override
public Version[] getSerializationVersions() {
return dsfidVersions;
}
@Override
public void toData(DataOutput out) throws IOException {
toDataCalled = true;
}
public void toDataPre_GFE_6_6_0_0(DataOutput out) throws IOException {
toDataPre66Called = true;
}
public void toDataPre_GFE_7_0_0_0(DataOutput out) throws IOException {
toDataPre70called = true;
}
@Override
public void fromData(DataInput in) throws IOException {
fromDataCalled = true;
}
public void fromDataPre_GFE_6_6_0_0(DataInput out) throws IOException {
fromDataPre66Called = true;
}
public void fromDataPre_GFE_7_0_0_0(DataInput out) throws IOException {
fromDataPre70Called = true;
}
@Override
public int getDSFID() {
return DataSerializableFixedID.PUTALL_VERSIONS_LIST;
}
}
}