00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one or more 00003 * contributor license agreements. See the NOTICE file distributed with 00004 * this work for additional information regarding copyright ownership. 00005 * The ASF licenses this file to You under the Apache License, Version 2.0 00006 * (the "License"); you may not use this file except in compliance with 00007 * the License. You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 00018 #ifndef _DECAF_UTIL_ZIP_CHECKEDINPUTSTREAM_H_ 00019 #define _DECAF_UTIL_ZIP_CHECKEDINPUTSTREAM_H_ 00020 00021 #include <decaf/util/Config.h> 00022 #include <decaf/util/zip/Checksum.h> 00023 #include <decaf/io/FilterInputStream.h> 00024 00025 namespace decaf { 00026 namespace util { 00027 namespace zip { 00028 00036 class DECAF_API CheckedInputStream : public decaf::io::FilterInputStream { 00037 private: 00038 00039 // Pointer to the Checksum instance to use in this stream, ownership 00040 // of the Checksum pointer is not taken by this class. 00041 Checksum* sum; 00042 00043 private: 00044 00045 CheckedInputStream( const CheckedInputStream& ); 00046 CheckedInputStream& operator= ( const CheckedInputStream& ); 00047 00048 public: 00049 00062 CheckedInputStream( InputStream* inputStream, Checksum* sum, bool own = false ); 00063 00064 virtual ~CheckedInputStream(); 00065 00071 Checksum* getChecksum() const { 00072 return this->sum; 00073 } 00074 00080 virtual long long skip( long long num ); 00081 00082 protected: 00083 00084 virtual int doReadByte(); 00085 00086 virtual int doReadArrayBounded( unsigned char* buffer, int size, int offset, int length ); 00087 00088 }; 00089 00090 }}} 00091 00092 #endif /* _DECAF_UTIL_ZIP_CHECKEDINPUTSTREAM_H_ */
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