001    // Protocol Buffers - Google's data interchange format
002    // Copyright 2008 Google Inc.
003    // http://code.google.com/p/protobuf/
004    //
005    // Licensed under the Apache License, Version 2.0 (the "License");
006    // you may not use this file except in compliance with the License.
007    // You may obtain a copy of the License at
008    //
009    //      http://www.apache.org/licenses/LICENSE-2.0
010    //
011    // Unless required by applicable law or agreed to in writing, software
012    // distributed under the License is distributed on an "AS IS" BASIS,
013    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014    // See the License for the specific language governing permissions and
015    // limitations under the License.
016    
017    package org.fusesource.hawtbuf.proto;
018    
019    import java.io.IOException;
020    
021    /**
022     * Thrown when a protocol message being parsed is invalid in some way, e.g. it
023     * contains a malformed varint or a negative byte length.
024     * 
025     * @author kenton@google.com Kenton Varda
026     */
027    public class InvalidProtocolBufferException extends IOException {
028        private static final long serialVersionUID = 5685337441004132240L;
029    
030        public InvalidProtocolBufferException(String description) {
031            super(description);
032        }
033    
034        static InvalidProtocolBufferException truncatedMessage() {
035            return new InvalidProtocolBufferException("While parsing a protocol message, the input ended unexpectedly " + "in the middle of a field.  This could mean either than the " + "input has been truncated or that an embedded message "
036                    + "misreported its own length.");
037        }
038    
039        static InvalidProtocolBufferException negativeSize() {
040            return new InvalidProtocolBufferException("CodedInputStream encountered an embedded string or message " + "which claimed to have negative size.");
041        }
042    
043        static InvalidProtocolBufferException malformedVarint() {
044            return new InvalidProtocolBufferException("CodedInputStream encountered a malformed varint.");
045        }
046    
047        static InvalidProtocolBufferException invalidTag() {
048            return new InvalidProtocolBufferException("Protocol message contained an invalid tag (zero).");
049        }
050    
051        static InvalidProtocolBufferException invalidEndTag() {
052            return new InvalidProtocolBufferException("Protocol message end-group tag did not match expected tag.");
053        }
054    
055        static InvalidProtocolBufferException invalidWireType() {
056            return new InvalidProtocolBufferException("Protocol message tag had invalid wire type.");
057        }
058    
059        static InvalidProtocolBufferException recursionLimitExceeded() {
060            return new InvalidProtocolBufferException("Protocol message had too many levels of nesting.  May be malicious.  " + "Use CodedInputStream.setRecursionLimit() to increase the depth limit.");
061        }
062    
063        static InvalidProtocolBufferException sizeLimitExceeded() {
064            return new InvalidProtocolBufferException("Protocol message was too large.  May be malicious.  " + "Use CodedInputStream.setSizeLimit() to increase the size limit.");
065        }
066    }