| /* |
| * 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 <log4cxx/logstring.h> |
| #include <log4cxx/pattern/formattinginfo.h> |
| #include <limits.h> |
| |
| using namespace log4cxx; |
| using namespace log4cxx::pattern; |
| |
| IMPLEMENT_LOG4CXX_OBJECT(FormattingInfo) |
| |
| /** |
| * Creates new instance. |
| * @param leftAlign left align if true. |
| * @param minLength minimum length. |
| * @param maxLength maximum length. |
| */ |
| FormattingInfo::FormattingInfo( |
| const bool leftAlign1, const int minLength1, const int maxLength1) : |
| minLength(minLength1), |
| maxLength(maxLength1), |
| leftAlign(leftAlign1) |
| { |
| } |
| |
| /** |
| * Gets default instance. |
| * @return default instance. |
| */ |
| FormattingInfoPtr FormattingInfo::getDefault() |
| { |
| static FormattingInfoPtr def(new FormattingInfo(false, 0, INT_MAX)); |
| return def; |
| } |
| |
| /** |
| * Adjust the content of the buffer based on the specified lengths and alignment. |
| * |
| * @param fieldStart start of field in buffer. |
| * @param buffer buffer to be modified. |
| */ |
| void FormattingInfo::format(const int fieldStart, LogString& buffer) const |
| { |
| int rawLength = int(buffer.length() - fieldStart); |
| |
| if (rawLength > maxLength) |
| { |
| buffer.erase(buffer.begin() + fieldStart, |
| buffer.begin() + fieldStart + (rawLength - maxLength)); |
| } |
| else if (rawLength < minLength) |
| { |
| if (leftAlign) |
| { |
| buffer.append(minLength - rawLength, (logchar) 0x20 /* ' ' */); |
| } |
| else |
| { |
| buffer.insert(fieldStart, minLength - rawLength, 0x20 /* ' ' */); |
| } |
| } |
| } |