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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.core.loggers; |
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package uk.org.iscream.cms.server.core.loggers; |
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.util.*; |
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import uk.ac.ukc.iscream.core.*; |
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import uk.org.iscream.cms.server.util.*; |
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import uk.org.iscream.cms.server.core.*; |
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import java.util.Date; |
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import java.text.DateFormat; |
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import java.util.Locale; |
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* @throws IOException if there is a problem with the file check. |
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*/ |
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public FileLogger() throws IOException{ |
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filename = System.getProperty("uk.ac.ukc.iscream.LoggerClass.FileLogger.filename"); |
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filename = System.getProperty("uk.org.iscream.cms.server.LoggerClass.FileLogger.filename"); |
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// Perform file check to make sure writing is ok |
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if(!fileCheck()){ |
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// Have to system.out.println errors because logging mechanism failed ! |
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//---PUBLIC METHODS--- |
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/** |
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* The write() method writes a line of log to the file, prepending |
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* it with some information about where to line came from and the |
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* date. This formatting is handled by the formatLogLine() method. |
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* There is some synchronisation here due to problems with the logfiles |
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* having multiple lines written on the same line, followed by dotted |
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* newlines in the wrong places. This is due to this method being |
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* called by multiple threads. |
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/** |
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* The write() method takes a line of text, pre-formatted |
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* and outputs it using a method defined by the actual |
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* implementation. The verbosity is given in case the |
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* implementation wishes to utilise it in the layout - |
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* eg. a different colour or font. |
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* |
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* @param source A string representation of the calling object. |
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* @param message The message to be logged. |
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*/ |
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* This instance writes the line to a file. |
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* |
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* @param line A line of formatted text to be logged |
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* @param verbosity the verbosity of this message |
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*/ |
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public synchronized void write(String line, int verbosity) { |
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// Check to make sure file is open |
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if(open){ |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* This uses the uk.ac.ukc.iscream.util.FormatName class |
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* This uses the uk.org.iscream.cms.server.util.FormatName class |
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* to format the toString() |
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* |
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* @return the name of this class and its CVS revision |
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return fileOK; |
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} |
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/** |
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* This method is provided if this class wishes to log |
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* a message itself. |
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* |
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* @param source A String representation of the source |
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* @param verbosity the verbosity of this message |
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* @param message The message to log |
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*/ |
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private void write(String source, int verbosity, String message) { |
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write(FormatName.formatLogLine(source, verbosity, message), verbosity); |
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} |
