| /** |
| * |
| * 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 <cstdio> |
| #include <iostream> |
| #include <vector> |
| #include <string> |
| #include <algorithm> |
| #include "io/InputStream.h" |
| |
| namespace org { |
| namespace apache { |
| namespace nifi { |
| namespace minifi { |
| namespace io { |
| |
| int InputStream::read(std::vector<uint8_t>& buffer, int len) { |
| if (buffer.size() < len) { |
| buffer.resize(len); |
| } |
| int ret = read(buffer.data(), len); |
| buffer.resize((std::max)(ret, 0)); |
| return ret; |
| } |
| |
| int InputStream::read(bool &value) { |
| uint8_t buf = 0; |
| |
| if (read(&buf, 1) != 1) { |
| return -1; |
| } |
| value = buf; |
| return 1; |
| } |
| |
| int InputStream::read(std::string &str, bool widen) { |
| uint32_t len = 0; |
| int ret = 0; |
| if (!widen) { |
| uint16_t shortLength = 0; |
| ret = read(shortLength); |
| len = shortLength; |
| } else { |
| ret = read(len); |
| } |
| |
| if (ret <= 0) { |
| return ret; |
| } |
| |
| if (len == 0) { |
| str = ""; |
| return ret; |
| } |
| |
| std::vector<uint8_t> buffer(len); |
| if (read(buffer.data(), len) != len) { |
| return -1; |
| } |
| |
| str = std::string(reinterpret_cast<const char*>(buffer.data()), len); |
| return ret + len; |
| } |
| |
| } /* namespace io */ |
| } /* namespace minifi */ |
| } /* namespace nifi */ |
| } /* namespace apache */ |
| } /* namespace org */ |