--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/go/trove/log/FileLogStreamFactory.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,132 @@
+/* ====================================================================
+ * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group
+ * ====================================================================
+ * The Tea Software License, Version 1.1
+ *
+ * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Walt Disney Internet Group (http://opensource.go.com/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must
+ *    not be used to endorse or promote products derived from this
+ *    software without prior written permission. For written
+ *    permission, please contact opensource@dig.com.
+ *
+ * 5. Products derived from this software may not be called "Tea",
+ *    "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet",
+ *    "Kettle", "Trove" or "BeanDoc" appear in their name, without prior
+ *    written permission of the Walt Disney Internet Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * For more information about Tea, please see http://opensource.go.com/.
+ */
+
+package com.go.trove.log;
+
+import java.io.*;
+import java.util.*;
+import java.text.*;
+
+/******************************************************************************
+ * Opens up files to be used by an {@link IntervalLogStream}.
+ *
+ * @author Brian S O'Neill
+ * @version
+ * <!--$$Revision: 1.1 $-->, <!--$$JustDate:-->  9/07/00 <!-- $-->
+ */
+public class FileLogStreamFactory implements IntervalLogStream.Factory {
+    private File mDirectory;
+    private DateFormat mDateFormat;
+    private String mExtension;
+
+    /**
+     * Creates log files in the given directory. The names are created by
+     * appending the name of the directory, a hyphen, a time stamp and 
+     * an extension.
+     * 
+     * For example, if the directory is "/logs/MyApp", the format is 
+     * "yyyyMMdd", and the extension is ".log", then a generated file might be:
+     * "/logs/MyApp/MyApp-19990608.log".
+     *
+     * @param directory Directory to create log files in.
+     * @param format DateFormat to use for creating new file names.
+     * @param extension Extension to put at the end of new file name.
+     */
+    public FileLogStreamFactory(File directory, 
+                                DateFormat format,
+                                String extension) {
+
+        if (directory == null) {
+            throw new NullPointerException
+                ("FileLogStreamFactory directory not specified");
+        }
+
+        try {
+            mDirectory = new File(directory.getCanonicalPath());
+        }
+        catch (IOException e) {
+            mDirectory = directory;
+        }
+
+        if (format == null) {
+            throw new NullPointerException
+                ("FileLogStreamFactory date format not specified");
+        }
+
+        mDateFormat = format;
+
+        if (extension == null) {
+            mExtension = "";
+        }
+        else {
+            mExtension = extension;
+        }
+    }
+
+    public OutputStream openOutputStream(Date date) throws IOException {
+        if (!mDirectory.exists()) {
+            if (!mDirectory.mkdirs()) {
+                throw new IOException("Unable to create directory: \"" + 
+                                      mDirectory + '"');
+            }
+        }
+        
+        String fileName = mDirectory.getName() + '-';
+        synchronized (mDateFormat) {
+            fileName += mDateFormat.format(date);
+        }
+        
+        File file = new File(mDirectory, fileName + mExtension);
+        return new FileOutputStream(file.getPath(), true);
+    }
+}
+