juzu.impl.common.TrimmingException Maven / Gradle / Ivy
/*
* Copyright 2013 eXo Platform SAS
*
* 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 juzu.impl.common;
/** @author Julien Viet */
public class TrimmingException extends Exception {
public static void invoke(Callback callback) throws TrimmingException {
try {
callback.call();
}
catch (Throwable t) {
throw new TrimmingException(t);
}
}
/** . */
private final String toString;
/** . */
private final Throwable source;
private TrimmingException(Throwable t) {
this(t, new Exception().getStackTrace().length);
}
private TrimmingException(Throwable t, int toTrim) {
// Trim the trace
StackTraceElement[] trace = t.getStackTrace();
StackTraceElement[] trimmed = new StackTraceElement[trace.length - toTrim];
System.arraycopy(trace, 0, trimmed, 0, trimmed.length);
setStackTrace(trimmed);
//
this.toString = t.toString();
this.source = t;
// Recursively build the causes
Throwable cause = t.getCause();
if (cause != null) {
initCause(new TrimmingException(cause, toTrim));
}
}
public Throwable getSource() {
return source;
}
@Override
public String toString() {
return toString;
}
public static interface Callback {
void call() throws Throwable;
}
}