| /* |
| * 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. |
| */ |
| |
| #ifndef _DECAF_UTIL_ZIP_CHECKEDOUTPUTSTREAM_H_ |
| #define _DECAF_UTIL_ZIP_CHECKEDOUTPUTSTREAM_H_ |
| |
| #include <decaf/util/Config.h> |
| #include <decaf/util/zip/Checksum.h> |
| #include <decaf/io/FilterOutputStream.h> |
| |
| namespace decaf { |
| namespace util { |
| namespace zip { |
| |
| /** |
| * An implementation of a FilterOutputStream that will maintain a Checksum of the |
| * bytes written, the Checksum can then be used to verify the integrity of the |
| * output stream. |
| * |
| * @since 1.0 |
| */ |
| class DECAF_API CheckedOutputStream : public decaf::io::FilterOutputStream { |
| private: |
| |
| // The Checksom instance used by this stream, not owned by the stream. |
| Checksum* sum; |
| |
| private: |
| |
| CheckedOutputStream(const CheckedOutputStream&); |
| CheckedOutputStream& operator=(const CheckedOutputStream&); |
| |
| public: |
| |
| /** |
| * Create a new instance of a CheckedOutputStream |
| * |
| * @param outputStream |
| * The OutputStream instance to Wrap. |
| * @param sum |
| * The Checksum instance to use (does not take ownership of the Pointer). |
| * @param own |
| * Indicates if this filer should take ownership of the InputStream. |
| * |
| * @throws NullPointerException if the Checksum pointer is NULL. |
| */ |
| CheckedOutputStream(decaf::io::OutputStream* outputStream, Checksum* sum, bool own = false); |
| |
| virtual ~CheckedOutputStream(); |
| |
| /** |
| * @return a pointer to the Checksum instance in use by this object. |
| */ |
| Checksum* getChecksum() const { |
| return this->sum; |
| } |
| |
| protected: |
| |
| virtual void doWriteByte(unsigned char value); |
| |
| virtual void doWriteArrayBounded(const unsigned char* buffer, int size, int offset, int length); |
| |
| }; |
| |
| }}} |
| |
| #endif /* _DECAF_UTIL_ZIP_CHECKEDOUTPUTSTREAM_H_ */ |