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+/******************************************************************************
+ *
+ * package:
+ * file: fileappender.cpp
+ * created: September 2007
+ * author: Martin Heinrich
+ *
+ *
+ * Copyright 2007 Martin Heinrich
+ *
+ * Licensed 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.
+ *
+ ******************************************************************************/
+
+
+
+/******************************************************************************
+ * Dependencies
+ ******************************************************************************/
+
+
+#include "fileappender.h"
+
+#include <QtCore/QDir>
+#include <QtCore/QFile>
+#include <QtCore/QFileInfo>
+#include <QtCore/QDebug>
+#include <QtCore/QTextStream>
+#include <QtCore/QTextCodec>
+#include "layout.h"
+#include "loggingevent.h"
+
+// if we are in WIN*
+#if defined(__WIN32__) || defined(WIN) || defined(WIN32) || defined(Q_OS_WIN32)
+#include <windows.h>
+#endif
+
+namespace Log4Qt
+{
+
+
+ /**************************************************************************
+ * Declarations
+ **************************************************************************/
+
+
+
+ /**************************************************************************
+ * C helper functions
+ **************************************************************************/
+
+
+
+ /**************************************************************************
+ * Class implementation: FileAppender
+ **************************************************************************/
+
+
+ FileAppender::FileAppender(QObject *pParent) :
+ WriterAppender(pParent),
+ mAppendFile(false),
+ mBufferedIo(true),
+ mFileName(),
+ mpFile(0),
+ mpTextStream(0)
+ {
+ }
+
+
+ FileAppender::FileAppender(Layout *pLayout,
+ const QString &rFileName,
+ QObject *pParent) :
+ WriterAppender(pLayout, pParent),
+ mAppendFile(false),
+ mBufferedIo(true),
+ mFileName(rFileName),
+ mpFile(0),
+ mpTextStream(0)
+ {
+ }
+
+
+ FileAppender::FileAppender(Layout *pLayout,
+ const QString &rFileName,
+ bool append,
+ QObject *pParent) :
+ WriterAppender(pLayout, pParent),
+ mAppendFile(append),
+ mBufferedIo(true),
+ mFileName(rFileName),
+ mpFile(0),
+ mpTextStream(0)
+ {
+ }
+
+
+ FileAppender::FileAppender(Layout *pLayout,
+ const QString &rFileName,
+ bool append,
+ bool buffered,
+ QObject *pParent) :
+ WriterAppender(pLayout, pParent),
+ mAppendFile(append),
+ mBufferedIo(buffered),
+ mFileName(rFileName),
+ mpFile(0),
+ mpTextStream(0)
+ {
+ }
+
+
+ FileAppender::~FileAppender()
+ {
+ close();
+ }
+
+
+ void FileAppender::activateOptions()
+ {
+ QMutexLocker locker(&mObjectGuard);
+
+ if (mFileName.isEmpty())
+ {
+ LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("Activation of Appender '%1' that requires file and has no file set"),
+ APPENDER_ACTIVATE_MISSING_FILE_ERROR);
+ e << name();
+ logger()->error(e);
+ return;
+ }
+ closeFile();
+ openFile();
+ WriterAppender::activateOptions();
+ }
+
+
+ void FileAppender::close()
+ {
+ QMutexLocker locker(&mObjectGuard);
+
+ if (isClosed())
+ return;
+
+ WriterAppender::close();
+ closeFile();
+ }
+
+
+ bool FileAppender::checkEntryConditions() const
+ {
+ // Q_ASSERT_X(, "FileAppender::checkEntryConditions()", "Lock must be held by caller")
+
+ if (!mpFile || !mpTextStream)
+ {
+ LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("Use of appender '%1' without open file"),
+ APPENDER_NO_OPEN_FILE_ERROR);
+ e << name();
+ logger()->error(e);
+ return false;
+ }
+
+ return WriterAppender::checkEntryConditions();
+ }
+
+
+ void FileAppender::closeFile()
+ {
+ // Q_ASSERT_X(, "FileAppender::closeFile()", "Lock must be held by caller")
+
+ if (mpFile)
+ logger()->debug("Closing file '%1' for appender '%2'", mpFile->fileName(), name());
+
+ setWriter(0);
+ delete mpTextStream;
+ mpTextStream = 0;
+ delete mpFile;
+ mpFile = 0;
+ }
+
+
+#ifndef QT_NO_DEBUG_STREAM
+ QDebug FileAppender::debug(QDebug &rDebug) const
+ {
+ QString layout_name;
+ if (layout())
+ layout_name = layout()->name();
+ QString codec_name;
+ if (encoding())
+ codec_name = QLatin1String(encoding()->name());
+
+ rDebug.nospace() << "FileAppender("
+ << "name:" << name() << " "
+ << "appendfile:" << appendFile() << " "
+ << "bufferedio:" << bufferedIo() << " "
+ << "encoding:" << codec_name << " "
+ << "file:" << file() << " "
+ << "filter:" << firstFilter() << " "
+ << "immediateflush:" << immediateFlush() << " "
+ << "isactive:" << isActive() << " "
+ << "isclosed:" << isClosed() << " "
+ << "layout:" << layout_name << " "
+ << "referencecount:" << referenceCount() << " "
+ << "threshold:" << threshold().toString() << " "
+ << "writer:" << writer()
+ << ")";
+ return rDebug.space();
+ }
+#endif // QT_NO_DEBUG_STREAM
+
+
+ bool FileAppender::handleIoErrors() const
+ {
+ // Q_ASSERT_X(, "FileAppender::handleIoErrors()", "Lock must be held by caller")
+
+ if (mpFile->error() == QFile::NoError)
+ return false;
+
+ LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("Unable to write to file '%1' for appender '%2'"),
+ APPENDER_WRITING_FILE_ERROR);
+ e << mFileName << name();
+ e.addCausingError(LogError(mpFile->errorString(), mpFile->error()));
+ logger()->error(e);
+ return true;
+ }
+
+
+ void FileAppender::openFile()
+ {
+ Q_ASSERT_X(mpFile == 0 && mpTextStream == 0, "FileAppender::openFile()", "Opening file without closing previous file");
+
+ QFileInfo file_info(mFileName);
+ QDir parent_dir = file_info.dir();
+ if (!parent_dir.exists())
+ {
+ logger()->trace("Creating missing parent directory for file %1", mFileName);
+ QString name = parent_dir.dirName();
+ parent_dir.cdUp();
+ parent_dir.mkdir(name);
+ }
+
+#if defined(__WIN32__) || defined(WIN) || defined(WIN32) || defined(Q_OS_WIN32)
+ // Let windows resolve any environment variables included in the file path
+ wchar_t buffer[MAX_PATH];
+ if (ExpandEnvironmentStringsW((wchar_t*)mFileName.utf16(), buffer, MAX_PATH)) {
+ mFileName = QString::fromWCharArray(buffer);
+ }
+#endif
+
+ mpFile = new QFile(mFileName);
+ QFile::OpenMode mode = QIODevice::WriteOnly | QIODevice::Text;
+ if (mAppendFile)
+ mode |= QIODevice::Append;
+ else
+ mode |= QIODevice::Truncate;
+ if (!mBufferedIo)
+ mode |= QIODevice::Unbuffered;
+ if (!mpFile->open(mode))
+ {
+ LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("Unable to open file '%1' for appender '%2'"),
+ APPENDER_OPENING_FILE_ERROR);
+ e << mFileName << name();
+ e.addCausingError(LogError(mpFile->errorString(), mpFile->error()));
+ logger()->error(e);
+ return;
+ }
+ mpTextStream = new QTextStream(mpFile);
+ setWriter(mpTextStream);
+ logger()->debug("Opened file '%1' for appender '%2'", mpFile->fileName(), name());
+ }
+
+
+ bool FileAppender::removeFile(QFile &rFile) const
+ {
+ if (rFile.remove())
+ return true;
+
+ LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("Unable to remove file '%1' for appender '%2'"),
+ APPENDER_REMOVE_FILE_ERROR);
+ e << rFile.fileName() << name();
+ e.addCausingError(LogError(rFile.errorString(), rFile.error()));
+ logger()->error(e);
+ return false;
+ }
+
+
+ bool FileAppender::renameFile(QFile &rFile,
+ const QString &rFileName) const
+ {
+ logger()->debug("Renaming file '%1' to '%2'", rFile.fileName(), rFileName);
+ if (rFile.rename(rFileName))
+ return true;
+
+ LogError e = LOG4QT_QCLASS_ERROR(QT_TR_NOOP("Unable to rename file '%1' to '%2' for appender '%3'"),
+ APPENDER_RENAMING_FILE_ERROR);
+ e << rFile.fileName() << rFileName << name();
+ e.addCausingError(LogError(rFile.errorString(), rFile.error()));
+ logger()->error(e);
+ return false;
+ }
+
+
+
+ /**************************************************************************
+ * Implementation: Operators, Helper
+ **************************************************************************/
+
+
+} // namespace Log4Qt
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