Here you can find the source of readLinesFileSimple(final File inFile, final int prefixMode, final String prefix)
| Parameter | Description |
|---|---|
| inFile | File |
| prefixMode | int |
| prefix | String |
public static final String readLinesFileSimple(final File inFile, final int prefixMode, final String prefix)
//package com.java2s; /******************************************************************** * * Copyright (c) 2006-2007 Berlin Brown and botnode.com All Rights Reserved * * http://www.opensource.org/licenses/bsd-license.php /* w ww . j a va2s . c om*/ * All rights reserved. * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 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. * * Neither the name of the Botnode.com (Berlin Brown) nor * the names of its contributors may be used to endorse or promote * products derived from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS 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 COPYRIGHT OWNER OR * 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. * * Date: 1/5/2009 * 7/15/2009 - Added Clojure 1.0, other performance fixes and cleanups. * * Main Description: Light Log Viewer is a tool for making it easier to search log files. * Light Log Viewer adds some text highlighting, quick key navigation to text files, simple graphs * and charts for monitoring logs, file database to quickly navigate to files of interest, * and HTML to PDF convert tool. * Light Log was developed with a combination of Clojure 1.0, Java and Scala with use of libs, SWT 3.4, JFreeChart, iText. * * Quickstart : the best way to run the Light Log viewer is to click on the win32 batch script light_logs.bat * (you may need to edit the Linux script for Unix/Linux environments). * Edit the win32 script to add more heap memory or other parameters. * * The clojure source is contained in : HOME/src/octane * The java source is contained in : HOME/src/java/src * * To build the java source, see : HOME/src/java/build.xml and build_pdf_gui.xml * * Metrics: (as of 7/15/2009) Light Log Viewer consists of 6500 lines of Clojure code, and contains wrapper code * around the Java source. There are 2000+ lines of Java code in the Java library for Light Log Viewer. * * Additional Development Notes: The SWT gui and other libraries are launched from a dynamic classloader. Clojure is also * started from the same code, and reflection is used to dynamically initiate Clojure. See the 'start' package. The binary * code is contained in the octane_start.jar library. * * Home Page: http://code.google.com/p/lighttexteditor/ * * Contact: Berlin Brown <berlin dot brown at gmail.com> *********************************************************************/ import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static final int MAX_LINES_READ_MERGE = 3000; /** * Implementation Routine readLinesFileSimple. * @param inFile File * @param prefixMode int * @param prefix String * @return String */ public static final String readLinesFileSimple(final File inFile, final int prefixMode, final String prefix) { try { return readLinesFile(inFile, prefixMode, prefix); } catch (IOException e) { e.printStackTrace(); } return ""; } /** * Implementation Routine readLinesFile. * @param inFile File * @param prefixMode int * @param prefix String * @return String * @throws IOException */ public static final String readLinesFile(final File inFile, final int prefixMode, final String prefix) throws IOException { return readLinesFile(inFile, prefixMode, prefix, MAX_LINES_READ_MERGE); } /** * Implementation Routine readLinesFile. * @param inFile File * @param prefixMode int * @param prefix String * @param maxLinesRead int * @return String * @throws IOException */ public static final String readLinesFile(final File inFile, final int prefixMode, final String prefix, int maxLinesRead) throws IOException { final StringBuffer resultBuffer = new StringBuffer(128); final FileInputStream stream = new FileInputStream(inFile); final BufferedReader reader = new BufferedReader(new InputStreamReader(stream)); try { String data = ""; int lineNumber = 1; boolean maxReached = false; do { // Perform simple max, -1 means ignore the max value. maxReached = (maxLinesRead == -1) ? false : (lineNumber >= maxLinesRead); data = reader.readLine(); if (data != null) { final String curPrefix = prefix == null ? "" : prefix; resultBuffer.append(curPrefix).append(lineNumber).append(':'); resultBuffer.append(inFile.getAbsolutePath()).append(':'); resultBuffer.append(data).append('\n'); } lineNumber++; } while ((data != null) && !maxReached); // Add a line number max indicator if (maxReached) { resultBuffer.append("...\n"); resultBuffer.append("Max of ").append(lineNumber - 1).append(" lines reached for "); resultBuffer.append(inFile.getAbsolutePath()); resultBuffer.append(data).append('\n'); } // End of the if // } finally { if (reader != null) { try { reader.close(); } catch (IOException e) { ; } } } // End of Finally // return resultBuffer.toString(); } }