net.javacrumbs.smock.common.SourceAndControlAssertionError.java Source code

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Here is the source code for net.javacrumbs.smock.common.SourceAndControlAssertionError.java

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/*
 * Copyright 2005-2010 the original author or authors.
 *
 * 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 net.javacrumbs.smock.common;

import static org.springframework.util.Assert.notNull;

import javax.xml.transform.Source;

/**
 * Subclass of {@link AssertionError} that also contains a message and control
 * message {@link Source} for more context.
 * 
 * @author Lukas Krecan
 * @author Arjen Poutsma
 * 
 */
public class SourceAndControlAssertionError extends AssertionError {
    private static final long serialVersionUID = 6499060400685231092L;

    private static final String NEW_LINE = System.getProperty("line.separator");

    private final String controlLabel;

    private final Source controlSource;

    private final String messageLabel;

    private final Source messageSource;

    /**
     * Creates assertion error.
     * @param message
     * @param messageLabel
     * @param messageSource
     * @param controlLabel
     * @param controlSource
     */
    public SourceAndControlAssertionError(String message, String messageLabel, Source messageSource,
            String controlLabel, Source controlSource) {
        super(message);
        notNull(messageLabel, "messageLabel has to be set");
        notNull(messageSource, "messageSource has to be set");
        notNull(controlLabel, "controlLabel has to be set");
        notNull(controlSource, "controlSource has to be set");
        this.controlLabel = controlLabel;
        this.controlSource = controlSource;
        this.messageLabel = messageLabel;
        this.messageSource = messageSource;
    }

    @Override
    public String getMessage() {
        StringBuilder builder = new StringBuilder();
        builder.append(super.getMessage());
        appendMessage(builder, messageSource, messageLabel);
        appendMessage(builder, controlSource, controlLabel);
        return builder.toString();
    }

    private void appendMessage(StringBuilder builder, Source source, String label) {
        String string = getMessageString(source);
        if (string != null) {
            builder.append(NEW_LINE);
            builder.append(label);
            builder.append(": ");
            builder.append(string);
        }
    }

    private String getMessageString(Source source) {
        if (source != null) {
            return XmlUtil.serialize(source);
        }
        return null;
    }

    public String getControlLabel() {
        return controlLabel;
    }

    public Source getControlSource() {
        return controlSource;
    }

}