| /* |
| * 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.geode.internal.cache.tier.sockets; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.geode.DataSerializable; |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.Delta; |
| import org.apache.geode.InvalidDeltaException; |
| import org.apache.geode.internal.cache.GemFireCacheImpl; |
| |
| /** |
| * Faulty delta implementation, raising ArrayIndexOutOfBound exception as fromDelta reads incorrect |
| * sequence then wrote by toDelta |
| * |
| * @since GemFire 6.1 |
| */ |
| public class FaultyDelta implements Delta, DataSerializable { |
| |
| public static final byte INT_MASK = 0x1; |
| public static final byte BIG_OBJECT_MASK = 0x2; |
| public static final byte COMPLETE_MASK = 0x3; |
| |
| protected int intVal = 0; |
| protected boolean hasDelta = false; |
| |
| protected byte[] bigObj = new byte[2]; |
| |
| public static boolean isPatternMatched = false; |
| |
| protected byte deltaBits = 0x0; |
| |
| @Override |
| public void fromDelta(DataInput in) throws IOException, InvalidDeltaException { |
| try { |
| byte deltaBits = DataSerializer.readByte(in); |
| GemFireCacheImpl.getInstance().getLogger().fine("Applying delta on " + this.toString()); |
| if (deltaBits != 0) { |
| // we should read here int, but we are reading byte array. Its is done |
| // intentionly to produce faulty fromDelta implementation |
| if ((deltaBits & INT_MASK) == INT_MASK) { |
| this.bigObj = DataSerializer.readByteArray(in); |
| GemFireCacheImpl.getInstance().getLogger() |
| .fine(" Applied delta on DeltaImpl's field 'bigObj' = {" + this.bigObj[0] + " " |
| + this.bigObj[1] + "}"); |
| } |
| if ((deltaBits & BIG_OBJECT_MASK) == BIG_OBJECT_MASK) { |
| this.intVal = DataSerializer.readPrimitiveInt(in); |
| GemFireCacheImpl.getInstance().getLogger() |
| .fine(" Applied delta on DeltaImpl's field 'intVal' = " + this.intVal); |
| } |
| if ((deltaBits | COMPLETE_MASK) != COMPLETE_MASK) { |
| GemFireCacheImpl.getInstance().getLogger().fine(" <unknown field code>"); |
| throw new IllegalArgumentException( |
| "DeltaImpl.fromDelta(): Unknown field code, " + deltaBits); |
| } |
| } |
| } catch (IOException ioe) { |
| GemFireCacheImpl.getInstance().getLogger().warning("DeltaObj.fromDelta(): " + ioe); |
| throw ioe; |
| } catch (IllegalArgumentException iae) { |
| GemFireCacheImpl.getInstance().getLogger().warning("DeltaObj.fromDelta(): " + iae); |
| throw new InvalidDeltaException(iae); |
| } |
| } |
| |
| @Override |
| public boolean hasDelta() { |
| return this.hasDelta; |
| } |
| |
| @Override |
| public void toDelta(DataOutput out) throws IOException { |
| try { |
| DataSerializer.writeByte(this.deltaBits, out); |
| GemFireCacheImpl.getInstance().getLogger().fine("Extracting delta from " + this.toString()); |
| if ((deltaBits & INT_MASK) == INT_MASK) { |
| GemFireCacheImpl.getInstance().getLogger() |
| .fine(" Extracted delta from DeltaObj's field 'intVal' = " + this.intVal); |
| DataSerializer.writePrimitiveInt(this.intVal, out); |
| } |
| if ((deltaBits & BIG_OBJECT_MASK) == BIG_OBJECT_MASK) { |
| GemFireCacheImpl.getInstance().getLogger() |
| .fine(" Extracted delta from DeltaObj's field 'bigObj' = {" + this.bigObj[0] + " " |
| + this.bigObj[1] + "}"); |
| DataSerializer.writeByteArray(this.bigObj, out); |
| } |
| if ((deltaBits | COMPLETE_MASK) != COMPLETE_MASK) { |
| GemFireCacheImpl.getInstance().getLogger().fine(" <unknown field code>"); |
| throw new IllegalArgumentException("DeltaImpl.toDelta(): Unknown field code, " + deltaBits); |
| } |
| DataSerializer.writeByte((byte) 255, out); |
| GemFireCacheImpl.getInstance().getLogger() |
| .fine(" Writing extra DeltaObj's field 'byte' = " + 255); |
| GemFireCacheImpl.getInstance().getLogger().fine("-----------"); |
| resetDeltaStatus(); |
| } catch (IOException ioe) { |
| GemFireCacheImpl.getInstance().getLogger().warning("DeltaObj.toDelta(): " + ioe); |
| throw ioe; |
| } catch (IllegalArgumentException iae) { |
| GemFireCacheImpl.getInstance().getLogger().warning("DeltaObj.toDelta(): " + iae); |
| throw new InvalidDeltaException(iae); |
| } |
| |
| } |
| |
| @Override |
| public void fromData(DataInput in) throws IOException, ClassNotFoundException { |
| this.intVal = DataSerializer.readPrimitiveInt(in); |
| this.bigObj = DataSerializer.readByteArray(in); |
| } |
| |
| @Override |
| public void toData(DataOutput out) throws IOException { |
| DataSerializer.writePrimitiveInt(this.intVal, out); |
| DataSerializer.writeByteArray(this.bigObj, out); |
| } |
| |
| public byte[] getBigObj() { |
| return bigObj; |
| } |
| |
| public void setBigObj(byte[] bigObj) { |
| this.hasDelta = true; |
| this.deltaBits |= BIG_OBJECT_MASK; |
| this.bigObj = bigObj; |
| } |
| |
| public void resetDeltaStatus() { |
| this.deltaBits = 0x0; |
| this.hasDelta = false; |
| } |
| |
| public int getIntVal() { |
| return intVal; |
| } |
| |
| public void setIntVal(int intVal) { |
| this.hasDelta = true; |
| this.deltaBits |= INT_MASK; |
| this.intVal = intVal; |
| } |
| |
| public String toString() { |
| return "DeltaObj[hasDelta=" + this.hasDelta + ",intVal=" + this.intVal + ",bigObj={" |
| + this.bigObj[0] + "," + this.bigObj[1] + "}]"; |
| } |
| } |