com.github.jknack.amd4j.AmdException.java Source code

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Here is the source code for com.github.jknack.amd4j.AmdException.java

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/**
 * Copyright (c) 2013 Edgar Espina
 *
 * This file is part of amd4j (https://github.com/jknack/amd4j)
 *
 * 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 com.github.jknack.amd4j;

import java.util.LinkedList;
import java.util.List;

import org.apache.commons.lang3.StringUtils;

/**
 * Amd exceptions.
 *
 * @author edgar.espina
 * @since 0.1.0
 */
@SuppressWarnings("serial")
public class AmdException extends RuntimeException {

    /**
     * The execution path.
     */
    private final LinkedList<String> path = new LinkedList<String>();

    /**
     * Creates a new {@link AmdException}.
     *
     * @param module The failing module.
     * @param cause The cause.
     */
    public AmdException(final String module, final Throwable cause) {
        super("", cause);
        path.add(module);
    }

    /**
     * Creates a new {@link AmdException}.
     *
     * @param path The failing module.
     * @param cause The cause.
     */
    public AmdException(final List<String> path, final Throwable cause) {
        super("", cause);
        this.path.addAll(path);
    }

    /**
     * The execution path.
     *
     * @return The execution path.
     */
    public LinkedList<String> getPath() {
        return path;
    }

    @Override
    public String getMessage() {
        StringBuilder message = new StringBuilder("Execution of: ").append(path.getFirst())
                .append(" resulted in exception:\n");
        int indent = 0;
        for (String segment : path) {
            message.append(StringUtils.leftPad(" ", indent)).append(segment).append("\n");
            indent += 2;
        }
        return message.toString();
    }

    @Override
    public String toString() {
        return getMessage() + getCause().toString();
    }
}