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Diffstat (limited to 'cpp/lib/broker/LazyLoadedContent.cpp')
-rw-r--r-- | cpp/lib/broker/LazyLoadedContent.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/cpp/lib/broker/LazyLoadedContent.cpp b/cpp/lib/broker/LazyLoadedContent.cpp new file mode 100644 index 0000000000..c0da48efda --- /dev/null +++ b/cpp/lib/broker/LazyLoadedContent.cpp @@ -0,0 +1,58 @@ +/* + * + * 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. + * + */ +#include <LazyLoadedContent.h> + +using namespace qpid::broker; +using namespace qpid::framing; + +LazyLoadedContent::LazyLoadedContent(MessageStore* const _store, Message* const _msg, u_int64_t _expectedSize) : + store(_store), msg(_msg), expectedSize(_expectedSize) {} + +void LazyLoadedContent::add(AMQContentBody::shared_ptr data) +{ + store->appendContent(msg, data->getData()); +} + +u_int32_t LazyLoadedContent::size() +{ + return 0;//all content is written as soon as it is added +} + +void LazyLoadedContent::send(OutputHandler* out, int channel, u_int32_t framesize) +{ + if (expectedSize > framesize) { + for (u_int64_t offset = 0; offset < expectedSize; offset += framesize) { + u_int64_t remaining = expectedSize - offset; + string data; + store->loadContent(msg, data, offset, remaining > framesize ? framesize : remaining); + out->send(new AMQFrame(channel, new AMQContentBody(data))); + } + } else { + string data; + store->loadContent(msg, data, 0, expectedSize); + out->send(new AMQFrame(channel, new AMQContentBody(data))); + } +} + +void LazyLoadedContent::encode(Buffer&) +{ + //do nothing as all content is written as soon as it is added +} |