Java Throwable to StackTrace getStackTraceChain(Throwable t, String[] allow, String[] deny)

Description

Returns stack trace chain filtered by class names.

License

Open Source License

Declaration

public static StackTraceElement[][] getStackTraceChain(Throwable t,
        String[] allow, String[] deny) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;

public class Main {
    /**//from   www.  ja va2  s .c o  m
     * Returns stack trace chain filtered by class names.
     */
    public static StackTraceElement[][] getStackTraceChain(Throwable t,
            String[] allow, String[] deny) {
        ArrayList<StackTraceElement[]> result = new ArrayList<StackTraceElement[]>();
        while (t != null) {
            StackTraceElement[] stack = getStackTrace(t, allow, deny);
            result.add(stack);
            t = t.getCause();
        }
        StackTraceElement[][] allStacks = new StackTraceElement[result
                .size()][];
        for (int i = 0; i < allStacks.length; i++) {
            allStacks[i] = result.get(i);
        }
        return allStacks;
    }

    /**
     * Returns stack trace filtered by class names.
     */
    public static StackTraceElement[] getStackTrace(Throwable t,
            String[] allow, String[] deny) {
        StackTraceElement[] st = t.getStackTrace();
        ArrayList<StackTraceElement> result = new ArrayList<StackTraceElement>(
                st.length);

        elementLoop: for (StackTraceElement element : st) {
            String className = element.getClassName();
            if (allow != null) {
                boolean validElemenet = false;
                for (String filter : allow) {
                    if (className.indexOf(filter) != -1) {
                        validElemenet = true;
                        break;
                    }
                }
                if (validElemenet == false) {
                    continue;
                }
            }
            if (deny != null) {
                for (String filter : deny) {
                    if (className.indexOf(filter) != -1) {
                        continue elementLoop;
                    }
                }
            }
            result.add(element);
        }
        st = new StackTraceElement[result.size()];
        return result.toArray(st);
    }
}

Related

1. cleanup(StackTraceElement[] stack)
2. getStackTrace(Throwable t, String[] allow, String[] deny)
3. getStackTraces(Throwable throwable)