dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/ErrorLabelText.java

/*******************************************************************************
 * Copyright (c) 2008, 2016 Wind River Systems and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     Wind River Systems - initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.dsf.debug.ui.viewmodel;

import java.util.Map;

import org.eclipse.cdt.dsf.ui.viewmodel.properties.LabelText;
import org.eclipse.core.runtime.IStatus;

/**
 * Label attribute that fills in the text of an error status into the label
 * column.
 *
 * @since 2.0
 */
public class ErrorLabelText extends LabelText {

	protected final static String PROP_ERROR_MESSAGE = "error_message"; //$NON-NLS-1$

	public ErrorLabelText() {
		this(MessagesForDebugVM.ErrorLabelText__text_format, new String[] {});
	}

	public ErrorLabelText(String formatPattern, String[] propertyNames) {
		super(formatPattern, addErrorMessageProperty(propertyNames));
	}

	private static String[] addErrorMessageProperty(String[] propertyNames) {
		String[] newPropertyNames = new String[propertyNames.length + 1];
		System.arraycopy(propertyNames, 0, newPropertyNames, 0, propertyNames.length);
		newPropertyNames[propertyNames.length + 0] = PROP_ERROR_MESSAGE;
		return newPropertyNames;
	}

	@Override
	protected Object getPropertyValue(String propertyName, IStatus status, Map<String, Object> properties) {
		if (PROP_ERROR_MESSAGE.equals(propertyName)) {
			if (status.getChildren().length < 2) {
				return replaceNewlines(status.getMessage());
			} else {
				StringBuilder buf = new StringBuilder(status.getMessage());
				for (IStatus childStatus : status.getChildren()) {
					buf.append(MessagesForDebugVM.ErrorLabelText_Error_message__text_page_break_delimiter);
					buf.append(replaceNewlines(childStatus.getMessage()));
				}
				return buf.toString();
			}
		}
		return super.getPropertyValue(propertyName, status, properties);
	}

	private String replaceNewlines(String message) {
		return message.replaceAll("\n", MessagesForDebugVM.ErrorLabelText_Error_message__text_page_break_delimiter); //$NON-NLS-1$
	}

	@Override
	public boolean checkProperty(String propertyName, IStatus status, Map<String, Object> properties) {
		if (PROP_ERROR_MESSAGE.equals(propertyName)) {
			return !status.isOK();
		}
		return super.checkProperty(propertyName, status, properties);
	}
}