com.google.gwt.logging.server.StackTraceDeobfuscator Maven / Gradle / Ivy
/*
* Copyright 2010 Google Inc.
*
* 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.
*/
package com.google.gwt.logging.server;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.logging.LogRecord;
/**
* @deprecated Use com.google.gwt.core.server.StackTraceDeobfuscator instead.
*/
@Deprecated
public class StackTraceDeobfuscator extends com.google.gwt.core.server.StackTraceDeobfuscator {
protected File symbolMapsDirectory;
/**
* Creates a deobfuscator that loads symbol map files from the given directory. Symbol maps are
* generated into the location specified by the GWT compiler -deploy command line
* argument.
*
* @param symbolMapsDirectory the symbolMaps directory, with or without trailing
* directory separator character
*/
public StackTraceDeobfuscator(String symbolMapsDirectory) {
this(symbolMapsDirectory, false);
}
/**
* Creates a deobfuscator that loads symbol map files from the given directory. Symbol maps are
* generated into the location specified by the GWT compiler -deploy command line
* argument.
*
* @param symbolMapsDirectory the symbolMaps directory, with or without trailing
* directory separator character
* @param lazyLoad if true, only symbols requested to be deobfuscated are cached. This provides
* a large memory savings at the expense of occasional extra disk reads.
*/
public StackTraceDeobfuscator(String symbolMapsDirectory, boolean lazyLoad) {
setLazyLoad(lazyLoad);
setSymbolMapsDirectory(symbolMapsDirectory);
}
/**
* Best effort resymbolization of a log record's stack trace.
*
* @param lr the log record to resymbolize
* @param strongName the GWT permutation strong name
* @return the best effort resymbolized log record
*/
public LogRecord deobfuscateLogRecord(LogRecord lr, String strongName) {
if (lr.getThrown() != null && strongName != null) {
lr.setThrown(deobfuscateThrowable(lr.getThrown(), strongName));
}
return lr;
}
public StackTraceElement[] deobfuscateStackTrace(StackTraceElement[] st, String strongName) {
return super.resymbolize(st, strongName);
}
public Throwable deobfuscateThrowable(Throwable old, String strongName) {
Throwable t = new Throwable(old.getMessage());
t.setStackTrace(deobfuscateStackTrace(old.getStackTrace(), strongName));
if (old.getCause() != null) {
t.initCause(deobfuscateThrowable(old.getCause(), strongName));
}
return t;
}
/**
* @deprecated The behavior of changing symbol map after construction is undefined, please provide
* it in construction time. If the directory needs to be changed after construction, a
* new instance of this class can be instantiated with the different one.
*/
@Deprecated
public void setSymbolMapsDirectory(String symbolMapsDirectory) {
// permutations are unique, no need to clear the symbolMaps hash map
this.symbolMapsDirectory = new File(symbolMapsDirectory);
}
protected InputStream openInputStream(String fileName) throws IOException {
return new FileInputStream(new File(symbolMapsDirectory, fileName));
}
}