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* Backport StackUtils class from Helma 2.

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* Implement jsStackTrace option to generate pure JS stack traces in error dumps.
This commit is contained in:
hns 2006-12-06 16:28:12 +00:00
parent bfdd643a99
commit 54ab7ca121
2 changed files with 54 additions and 2 deletions
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9
src/helma/framework/core/Application.java
View file

@ -1366,8 +1366,13 @@ public final class Application implements Runnable {
if (eventLog == null) {
eventLog = getLogger(eventLogName);
}
eventLog.error(msg, error);
if ("true".equalsIgnoreCase(props.getProperty("jsStackTrace"))) {
Exception jsx = new RuntimeException(error);
StackUtils.setJavaScriptStack(error, jsx);
eventLog.error(msg, jsx);
} else {
eventLog.error(msg, error);
}
}
/**

47
src/helma/util/StackUtils.java Normal file
View file

@ -0,0 +1,47 @@
/*
* Copyright 2006 Hannes Wallnoefer <hannes@helma.at>
*
* 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 helma.util;
import java.util.List;
import java.util.ArrayList;
/**
* Utility class to extract pure JavaScript stack trace from Java exceptions
*/
public class StackUtils {
/**
* Extract the JavaScript stack trace element from the source exception
* and copy them over to the target exception.
* @param source the source exception
* @param target the target excepiton
*/
public static void setJavaScriptStack(Throwable source, Throwable target) {
List list = new ArrayList();
StackTraceElement[] stack = source.getStackTrace();
for (int i = 0; i < stack.length; i++) {
StackTraceElement e = stack[i];
String name = e.getFileName();
if (e.getLineNumber() > -1 &&
(name.endsWith(".js") || name.endsWith(".hac"))) {
list.add(e);
}
}
target.setStackTrace((StackTraceElement[]) list.toArray(new StackTraceElement[list.size()]));
}
}