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- /*
- * Copyright (c) 2006-2011 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.logger;
-
- import com.dmdirc.Main;
- import com.dmdirc.config.IdentityManager;
- import com.dmdirc.util.io.Downloader;
-
- import java.io.File;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.io.PrintWriter;
- import java.io.Serializable;
- import java.net.MalformedURLException;
- import java.text.DateFormat;
- import java.text.SimpleDateFormat;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.Date;
- import java.util.HashMap;
- import java.util.List;
- import java.util.Map;
- import java.util.concurrent.Semaphore;
- import java.util.concurrent.atomic.AtomicInteger;
-
- /**
- * Stores a program error.
- */
- public final class ProgramError implements Serializable {
-
- /**
- * A version number for this class. It should be changed whenever the class
- * structure is changed (or anything else that would prevent serialized
- * objects being unserialized with the new class).
- */
- private static final long serialVersionUID = 3;
-
- /** Directory used to store errors. */
- private static File errorDir;
-
- /** Semaphore used to serialise write access. */
- private static final Semaphore WRITING_SEM = new Semaphore(1);
-
- /** Error ID. */
- private final long id;
-
- /** Error icon. */
- private final ErrorLevel level;
-
- /** Error message. */
- private final String message;
-
- /** Error trace. */
- private final String[] trace;
-
- /** Date/time error first occurred. */
- private final Date firstDate;
-
- /** Date/time error last occurred. */
- private Date lastDate;
-
- /** Number of occurrences. */
- private AtomicInteger count;
-
- /** Error report Status. */
- private ErrorReportStatus reportStatus;
-
- /** Error fixed Status. */
- private ErrorFixedStatus fixedStatus;
-
- /**
- * Creates a new instance of ProgramError.
- *
- * @param id error id
- * @param level Error level
- * @param message Error message
- * @param trace Error trace
- * @param date Error time and date
- */
- public ProgramError(final long id, final ErrorLevel level,
- final String message, final String[] trace, final Date date) {
-
- if (id < 0) {
- throw new IllegalArgumentException("ID must be a positive integer: " + id);
- }
-
- if (level == null) {
- throw new IllegalArgumentException("Level cannot be null");
- }
-
- if (message == null || message.isEmpty()) {
- throw new IllegalArgumentException("Message cannot be null or an empty string");
- }
-
- if (trace == null) {
- throw new IllegalArgumentException("Trace cannot be null");
- }
-
- if (date == null) {
- throw new IllegalArgumentException("date cannot be null");
- }
-
- this.id = id;
- this.level = level;
- this.message = message;
- this.trace = Arrays.copyOf(trace, trace.length);
- this.firstDate = (Date) date.clone();
- this.lastDate = (Date) date.clone();
- this.count = new AtomicInteger(1);
- this.reportStatus = ErrorReportStatus.WAITING;
- this.fixedStatus = ErrorFixedStatus.UNKNOWN;
- }
-
- /**
- * Returns this errors level.
- *
- * @return Error level
- */
- public ErrorLevel getLevel() {
- return level;
- }
-
- /**
- * Returns this errors message.
- *
- * @return Error message
- */
- public String getMessage() {
- return message;
- }
-
- /**
- * Returns this errors trace.
- *
- * @return Error trace
- */
- public String[] getTrace() {
- return Arrays.copyOf(trace, trace.length);
- }
-
- /**
- * Returns this errors time.
- *
- * @return Error time
- */
- public Date getDate() {
- return (Date) firstDate.clone();
- }
-
- /**
- * Returns the number of times this error has occurred.
- *
- * @return Error count
- */
- public int getCount() {
- return count.get();
- }
-
- /**
- * Returns the last time this error occurred.
- *
- * @return Last occurrence
- */
- public Date getLastDate() {
- return (Date) lastDate.clone();
- }
-
- /**
- * Returns the reportStatus of this error.
- *
- * @return Error reportStatus
- */
- public ErrorReportStatus getReportStatus() {
- return reportStatus;
- }
-
- /**
- * Returns the fixed status of this error.
- *
- * @return Error fixed status
- */
- public ErrorFixedStatus getFixedStatus() {
- return fixedStatus;
- }
-
- /**
- * Sets the report Status of this error.
- *
- * @param newStatus new ErrorReportStatus for the error
- */
- public void setReportStatus(final ErrorReportStatus newStatus) {
- if (newStatus != null && !reportStatus.equals(newStatus)) {
- reportStatus = newStatus;
- ErrorManager.getErrorManager().fireErrorStatusChanged(this);
-
- synchronized (this) {
- notifyAll();
- }
- }
- }
-
- /**
- * Sets the fixed status of this error.
- *
- * @param newStatus new ErrorFixedStatus for the error
- */
- public void setFixedStatus(final ErrorFixedStatus newStatus) {
- if (newStatus != null && !fixedStatus.equals(newStatus)) {
- fixedStatus = newStatus;
- ErrorManager.getErrorManager().fireErrorStatusChanged(this);
-
- synchronized (this) {
- notifyAll();
- }
- }
- }
-
- /**
- * Returns the ID of this error.
- *
- * @return Error ID
- */
- public long getID() {
- return id;
- }
-
- /**
- * Saves this error to disk.
- */
- public void save() {
- final PrintWriter out = new PrintWriter(getErrorFile(), true);
- out.println("Date:" + getDate());
- out.println("Level: " + getLevel());
- out.println("Description: " + getMessage());
- out.println("Details:");
-
- for (String traceLine : getTrace()) {
- out.println('\t' + traceLine);
- }
-
- out.close();
- }
-
- /**
- * Creates a new file for an error and returns the output stream.
- *
- * @return BufferedOutputStream to write to the error file
- */
- @SuppressWarnings("PMD.SystemPrintln")
- private OutputStream getErrorFile() {
- WRITING_SEM.acquireUninterruptibly();
-
- if (errorDir == null || !errorDir.exists()) {
- errorDir = new File(Main.getConfigDir() + "errors");
- if (!errorDir.exists()) {
- errorDir.mkdirs();
- }
- }
-
- final String logName = getDate().getTime() + "-" + getLevel();
-
- final File errorFile = new File(errorDir, logName + ".log");
-
- if (errorFile.exists()) {
- boolean rename = false;
- for (int i = 0; !rename; i++) {
- rename = errorFile.renameTo(new File(errorDir, logName + "-" + i + ".log"));
- }
- }
-
- try {
- errorFile.createNewFile();
- return new FileOutputStream(errorFile);
- } catch (IOException ex) {
- System.err.println("Error creating new file: ");
- ex.printStackTrace();
- return new NullOutputStream();
- } finally {
- WRITING_SEM.release();
- }
- }
-
- /**
- * Sends this error report to the DMDirc developers.
- */
- public void send() {
- final Map<String, String> postData = new HashMap<String, String>();
- List<String> response = new ArrayList<String>();
- int tries = 0;
-
- String traceString = Arrays.toString(getTrace());
- if (traceString.isEmpty() || traceString.equals("[]")) {
- traceString = "[No Trace]";
- }
- postData.put("message", getMessage());
- postData.put("trace", traceString);
- postData.put("version", IdentityManager.getGlobalConfig().getOption("version", "version"));
-
- setReportStatus(ErrorReportStatus.SENDING);
-
- do {
- if (tries != 0) {
- try {
- Thread.sleep(5000);
- } catch (InterruptedException ex) {
- //Ignore
- }
- }
- try {
- response = Downloader.getPage("http://www.dmdirc.com/error.php", postData);
- } catch (MalformedURLException ex) {
- //Ignore, wont happen
- } catch (IOException ex) {
- //Ignore being handled
- }
-
- tries++;
- } while ((response.isEmpty() || !response.get(response.size() - 1).
- equalsIgnoreCase("Error report submitted. Thank you."))
- && tries <= 5);
-
- checkResponses(response);
- }
-
- /**
- * Checks the responses and sets status accordingly.
- *
- * @param error Error to check response
- * @param response Response to check
- */
- private void checkResponses(final List<String> response) {
- if (!response.isEmpty() && response.get(response.size() - 1).
- equalsIgnoreCase("Error report submitted. Thank you.")) {
- setReportStatus(ErrorReportStatus.FINISHED);
- } else {
- setReportStatus(ErrorReportStatus.ERROR);
- return;
- }
-
- if (response.size() == 1) {
- setFixedStatus(ErrorFixedStatus.NEW);
- return;
- }
-
- final String responseToCheck = response.get(0);
- if (responseToCheck.matches(".*fixed.*")) {
- setFixedStatus(ErrorFixedStatus.FIXED);
- } else if (responseToCheck.matches(".*more recent version.*")) {
- setFixedStatus(ErrorFixedStatus.TOOOLD);
- } else if (responseToCheck.matches(".*invalid.*")) {
- setFixedStatus(ErrorFixedStatus.INVALID);
- } else if (responseToCheck.matches(".*previously.*")) {
- setFixedStatus(ErrorFixedStatus.KNOWN);
- } else {
- setFixedStatus(ErrorFixedStatus.NEW);
- }
- }
-
- /**
- * Determines whether or not the stack trace associated with this error
- * is from a valid source. A valid source is one that is within a DMDirc
- * package (com.dmdirc), and is not the DMDirc event queue.
- *
- * @return True if the source is valid, false otherwise
- */
- public boolean isValidSource() {
- final String line = getSourceLine();
-
- return line.startsWith("com.dmdirc")
- && !line.startsWith("com.dmdirc.addons.ui_swing.DMDircEventQueue");
- }
-
- /**
- * Returns the "source line" of this error, which is defined as the first
- * line starting with a DMDirc package name (com.dmdirc). If no such line
- * is found, returns the first line of the message.
- *
- * @return This error's source line
- */
- public String getSourceLine() {
- for (String line : trace) {
- if (line.startsWith("com.dmdirc")) {
- return line;
- }
- }
-
- return trace[0];
- }
-
- /**
- * Updates the last date this error occurred.
- */
- public void updateLastDate() {
- updateLastDate(new Date());
- }
-
- /**
- * Updates the last date this error occurred.
- *
- * @param date Date error occurred
- */
- public void updateLastDate(final Date date) {
- lastDate = date;
- count.getAndIncrement();
- ErrorManager.getErrorManager().fireErrorStatusChanged(this);
-
- synchronized (this) {
- notifyAll();
- }
- }
-
- /**
- * Retruns a human readable string describing the number of times
- * this error occurred and when these occurrences were.
- *
- * @return Occurrences description
- */
- public String occurrencesString() {
- final DateFormat format = new SimpleDateFormat("MMM dd hh:mm aa");
- if (count.get() == 1) {
- return "1 occurrence on " + format.format(getDate());
- } else {
- return count.get() + " occurrences between " + format.format(
- getDate()) + " and " + format.format(getLastDate()) + ".";
- }
- }
-
- /** {@inheritDoc} */
- @Override
- public String toString() {
- return "ID" + id + " Level: " + getLevel() + " Status: " + getReportStatus()
- + " Message: '" + getMessage() + "'";
- }
-
- /** {@inheritDoc} */
- @Override
- public boolean equals(final Object obj) {
- if (obj == null) {
- return false;
- }
-
- if (getClass() != obj.getClass()) {
- return false;
- }
-
- final ProgramError other = (ProgramError) obj;
- if (this.level != other.level) {
- return false;
- }
-
- if (!this.message.equals(other.message)) {
- return false;
- }
-
- if (!Arrays.equals(this.trace, other.trace)) {
- return false;
- }
-
- return true;
- }
-
- /** {@inheritDoc} */
- @Override
- public int hashCode() {
- int hash = 7;
- hash = 67 * hash + this.level.hashCode();
- hash = 67 * hash + this.message.hashCode();
- hash = 67 * hash + Arrays.hashCode(this.trace);
- return hash;
- }
- }
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