Java tutorial
/******************************************************************************* * Copyright 2017 Capital One Services, LLC and Bitwise, Inc. * 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 hydrograph.ui.dataviewer.utilities; import hydrograph.ui.common.util.OSValidator; import hydrograph.ui.common.util.PreferenceConstants; import hydrograph.ui.dataviewer.Activator; import hydrograph.ui.dataviewer.constants.MessageBoxText; import org.apache.commons.lang.StringUtils; import org.eclipse.core.runtime.Platform; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.ErrorDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.MessageBox; import org.eclipse.swt.widgets.Shell; import org.eclipse.ui.PlatformUI; /** * * Utility class for Debug data viewer. * Class contains below functionality - * - Get debug file size * - Get tools Installation path * - Get debug file path * - Get data viewer page size * - Show message box with ok button * @author Bitwise * */ public class Utils { private static final String TEMP_DEBUG_FILES_DIRECTORY_NAME = "debugfiles"; public static Utils INSTANCE = new Utils(); private Utils() { } /** * * Returns debug file size from preferences * * @return {@link String} */ public String getFileSize() { String fileSize = Platform.getPreferencesService().getString(Activator.PLUGIN_ID, PreferenceConstants.VIEW_DATA_FILE_SIZE, PreferenceConstants.DEFAULT_VIEW_DATA_FILE_SIZE, null); return fileSize; } /** * * Return tools Installation path * * @return {@link String} */ public String getInstallationPath() { String installationPath = Platform.getInstallLocation().getURL().getPath(); if (OSValidator.isWindows()) { if (installationPath.startsWith("/")) { installationPath = installationPath.replaceFirst("/", "").replace("/", "\\"); } } return installationPath; } /** * * Return debug file path from preferences * * @return {@link String} */ public String getDataViewerDebugFilePath() { String debugPath = Platform.getPreferencesService().getString(Activator.PLUGIN_ID, PreferenceConstants.VIEW_DATA_TEMP_FILEPATH, getInstallationPath() + TEMP_DEBUG_FILES_DIRECTORY_NAME, null); return debugPath; } /** * * Returns data viewer page size * * @return int */ public int getDefaultPageSize() { String pageSize = Platform.getPreferencesService().getString(Activator.PLUGIN_ID, PreferenceConstants.VIEW_DATA_PAGE_SIZE, PreferenceConstants.DEFAULT_VIEW_DATA_PAGE_SIZE, null); return Integer.valueOf(pageSize); } /** * * Returns boolean value if base path debug files are to be deleted * * @return boolean */ public Boolean isPurgeViewDataPrefSet() { Boolean purgeViewDataPref = Platform.getPreferencesService().getBoolean(Activator.PLUGIN_ID, PreferenceConstants.PURGE_DATA_FILES, true, null); return purgeViewDataPref; } private int getMessageBoxIcon(String messageBoxType) { if (StringUtils.equals(MessageBoxText.ERROR, messageBoxType)) { return SWT.ICON_ERROR; } else if (StringUtils.equals(MessageBoxText.WARNING, messageBoxType)) { return SWT.ICON_WARNING; } else { return SWT.ICON_INFORMATION; } } /** * * Show message box with ok button * * @param messageBoxTitle - Message box title * @param message - Message to be displayed */ public void showMessage(String messageBoxTitle, String message) { int shellStyle = SWT.APPLICATION_MODAL | SWT.OK | getMessageBoxIcon(messageBoxTitle); MessageBox messageBox = new MessageBox(new Shell(), shellStyle); messageBox.setText(messageBoxTitle); messageBox.setMessage(message); messageBox.open(); } /** * Get service port no * @return port no */ public String getServicePortNo() { String portNo = PlatformUI.getPreferenceStore().getString(PreferenceConstants.LOCAL_PORT_NO); if (StringUtils.isBlank(portNo)) { portNo = PreferenceConstants.DEFAULT_PORT_NO; } return portNo; } public void showDetailErrorMessage(String errorType, Status status) { ErrorDialog.openError(new Shell(), "Error", errorType, status); } /** * Set Host Value * @param String */ public void setHostValue(String host) { PreferenceConstants.DEFAULT_HOST = host; } }