001/*
002 * SPDX-License-Identifier: Apache-2.0
003 *
004 * Copyright 2024-2026 The Enola <https://enola.dev> Authors
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License");
007 * you may not use this file except in compliance with the License.
008 * You may obtain a copy of the License at
009 *
010 *     https://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package dev.enola.common.context;
019
020import org.jspecify.annotations.Nullable;
021
022import java.io.PrintStream;
023import java.io.PrintWriter;
024
025/** {@link Exception} with {@link Context}. */
026public class ContextualizedException extends Exception {
027
028    private final @Nullable Context context;
029
030    public ContextualizedException(String message) {
031        super(message);
032        context = TLC.get();
033    }
034
035    public ContextualizedException(String message, Throwable cause) {
036        super(message, cause);
037        context = TLC.get();
038    }
039
040    @Override
041    public void printStackTrace(PrintStream s) {
042        super.printStackTrace(s);
043        if (context != null) {
044            if (context.last != null) s.println("Context:");
045            context.append(s, INDENT);
046            s.flush();
047        }
048    }
049
050    @Override
051    public void printStackTrace(PrintWriter s) {
052        super.printStackTrace(s);
053        if (context != null) {
054            if (context.last != null) s.println("Context:");
055            context.append(s, INDENT);
056            s.flush();
057        }
058    }
059
060    static final String INDENT = "  ";
061}