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90 lines
3.8 KiB
90 lines
3.8 KiB
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012-2017 gnosygnu@gmail.com
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XOWA is licensed under the terms of the General Public License (GPL) Version 3,
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or alternatively under the terms of the Apache License Version 2.0.
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You may use XOWA according to either of these licenses as is most appropriate
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for your project on a case-by-case basis.
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The terms of each license can be found in the source code repository:
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GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
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Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
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*/
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package gplx;
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import gplx.core.errs.*;
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public class Err extends RuntimeException {
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private final boolean is_gplx;
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private final String trace;
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private Err_msg[] msgs_ary = new Err_msg[8]; private int msgs_len = 8, msgs_idx = 0;
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public Err(boolean is_gplx, String trace, String type, String msg, Object... args) {
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this.is_gplx = is_gplx;
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// NOTE: Err_ factory methods pass in null stack trace for gplx excs; call Stack_trace here, note that trace will not show constructor
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this.trace = is_gplx ? Err_.Trace_lang(this) : trace;
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Msgs_add(type, msg, args);
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}
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// marks messages logged so they can be ignored; used by Gfh_utl
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public boolean Logged() {return logged;} public Err Logged_y_() {logged = true; return this;} private boolean logged;
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// ignores current frame for reporting messages
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public int Trace_ignore() {return trace_ignore;} public Err Trace_ignore_add_1_() {++trace_ignore; return this;} private int trace_ignore = 0;
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public Err Args_add(Object... args) {msgs_ary[msgs_idx - 1].Args_add(args); return this;} // i - 1 to get current
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public String To_str__full() {return To_str(Bool_.N, Bool_.Y);}
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public String To_str__log() {return To_str(Bool_.Y, Bool_.Y);}
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public String To_str__msg_only(){
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return msgs_idx == 0 ? "<<MISSING ERROR MESSAGE>>" : msgs_ary[0].To_str_wo_type(); // take 1st message only
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}
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public String To_str__top_wo_args() {
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return msgs_idx == 0 ? "<<MISSING ERROR MESSAGE>>" : msgs_ary[0].To_str_wo_args();
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}
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private String To_str(boolean called_by_log, boolean include_trace) {
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String nl_str = called_by_log ? "\t" : "\n";
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String rv = "";
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for (int i = 0; i < msgs_idx; ++i) {
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rv += "[err " + Int_.To_str(i) + "] " + String_.Replace(msgs_ary[i].To_str(), "\n", nl_str) + nl_str;
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}
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if (include_trace)
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rv += "[trace]:" + Trace_to_str(is_gplx, called_by_log, trace_ignore, trace == null ? Err_.Trace_lang(this) : trace);
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return rv;
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}
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@Override public String getMessage() {return To_str__msg_only();}
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public static String Trace_to_str(boolean is_gplx, boolean called_by_log, int ignore_lines, String trace) {
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if (trace == null) return ""; // WORKAROUND:.NET: StackTrace is only available when error is thrown; can't do "Console.Write(new Exception().StackTrace);
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String[] lines = String_.Split_lang(trace, '\n'); int lines_len = lines.length;
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int line_bgn = 0;
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if (is_gplx) { // remove Err_.new_wo_type lines from trace for gplx exceptions
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for (int i = 0; i < lines_len; ++i) {
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String line = lines[i];
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if (String_.Has_at_bgn(line, "gplx.Err_.new")) continue; // ignore trace frames with "gplx.Err_.new"; EX: throw Err_.new_unimplemented
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line_bgn = i + ignore_lines;
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break;
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}
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}
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// concat lines
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String rv = "";
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String line_bgn_dlm = called_by_log ? "\t " : "\n "; // "\n " indents
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for (int i = line_bgn; i < lines_len; ++i)
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rv += line_bgn_dlm + lines[i];
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return rv;
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}
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@gplx.Internal protected void Msgs_add(String type, String msg, Object[] args) {
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if (msgs_idx == msgs_len) {
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int new_len = msgs_len * 2;
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Err_msg[] new_ary = new Err_msg[new_len];
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Array_.Copy_to(msgs_ary, new_ary, 0);
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this.msgs_ary = new_ary;
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this.msgs_len = new_len;
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}
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msgs_ary[msgs_idx] = new Err_msg(type, msg, args);
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++msgs_idx;
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}
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}
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