Java tutorial
/******************************************************************************* * Copyright (c) 2008 Australian Nuclear Science and Technology Organisation. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Norman Xiong (nxi@Bragg Institute) - initial API and implementation *******************************************************************************/ package au.gov.ansto.bragg.kowari.ui.tasks; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import org.eclipse.core.resources.IWorkspace; import org.eclipse.core.resources.IWorkspaceRoot; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Label; import org.gumtree.gumnix.sics.batch.ui.model.ISicsCommandElement; import au.gov.ansto.bragg.nbi.ui.core.commands.AbstractScanParameter; import au.gov.ansto.bragg.nbi.ui.core.commands.SimpleTableScanCommand; import au.gov.ansto.bragg.nbi.ui.core.commands.TableScanParameter; import au.gov.ansto.bragg.nbi.ui.tasks.SimpleTableScanTask; /** * @author nxi * Created on 11/08/2009 */ public class KowariTableScanTask extends SimpleTableScanTask { private final static String[] FOUR_COLUMN_NAMES = new String[] { "sx", "sy", "sz", "som", "time" }; private final static String[] SEVEN_COLUMN_NAMES = new String[] { "sx", "sy", "sz", "som", "ga", "gb", "gc", "time" }; private int numberOfMotors = 4; @Override public String getTitle() { return (numberOfMotors + 1) + "-Column Table Scan"; } protected void saveTableCommand(Composite composite) throws IOException { FileDialog dialog = new FileDialog(composite.getShell(), SWT.SAVE); if (fileDialogPath == null) { IWorkspace workspace = ResourcesPlugin.getWorkspace(); IWorkspaceRoot root = workspace.getRoot(); dialog.setFilterPath(root.getLocation().toOSString()); } else { dialog.setFilterPath(fileDialogPath); } dialog.setFilterExtensions(new String[] { "*.*" }); dialog.open(); if (dialog.getFileName() == null) { return; } String filePath = dialog.getFilterPath() + File.separator + dialog.getFileName(); File pickedFile = new File(filePath); if (pickedFile.exists() && pickedFile.isDirectory()) throw new IllegalAccessError("can not overwrite a folder"); else if (pickedFile.exists()) { if (!MessageDialog.openConfirm(composite.getShell(), "Confirm overwrite", "Do you want to overwrite " + filePath)) { return; } } fileDialogPath = pickedFile.getParent(); for (ISicsCommandElement command : getDataModel().getCommands()) { if (command instanceof SimpleTableScanCommand) { SimpleTableScanCommand tableCommand = (SimpleTableScanCommand) command; FileWriter outputfile = new FileWriter(pickedFile); String text = ""; // for (int i = 0; i < tableCommand.getNumberOfMotor(); i ++){ // text += tableCommand.getPNames().get(i) + ",\t"; // } // text += tableCommand.getScan_mode() + "\n"; if (tableCommand.getNumberOfMotor() >= 1) { text += (tableCommand.getColumn0() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 2) { text += (tableCommand.getColumn1() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 3) { text += (tableCommand.getColumn2() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 4) { text += (tableCommand.getColumn3() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 5) { text += (tableCommand.getColumn4() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 6) { text += (tableCommand.getColumn5() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 7) { text += (tableCommand.getColumn6() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 8) { text += (tableCommand.getColumn7() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 9) { text += (tableCommand.getColumn8() ? "1" : "0") + ",\t"; } if (tableCommand.getNumberOfMotor() >= 10) { text += (tableCommand.getColumn9() ? "1" : "0") + ",\t"; } text += "\n"; for (AbstractScanParameter parameter : tableCommand.getParameterList()) { if (parameter instanceof TableScanParameter) { TableScanParameter tableParameter = (TableScanParameter) parameter; for (int i = 0; i < tableCommand.getNumberOfMotor(); i++) { text += tableParameter.getP(i) + ",\t"; } text += Float.valueOf(tableParameter.getPreset()) + "\n"; } } outputfile.write(text); outputfile.close(); } } } @Override protected SimpleTableScanCommand loadTableCommand(final Composite parent, final Label label) { FileDialog dialog = new FileDialog(parent.getShell(), SWT.SINGLE); if (fileDialogPath == null) { IWorkspace workspace = ResourcesPlugin.getWorkspace(); IWorkspaceRoot root = workspace.getRoot(); dialog.setFilterPath(root.getLocation().toOSString()); } else { dialog.setFilterPath(fileDialogPath); } dialog.setFilterExtensions(new String[] { "*.*" }); dialog.open(); if (dialog.getFileName() == null) { return null; } String filePath = dialog.getFilterPath() + File.separator + dialog.getFileName(); File pickedFile = new File(filePath); if (!pickedFile.exists() || !pickedFile.isFile()) return null; fileDialogPath = pickedFile.getParent(); if (filePath != null) { BufferedReader reader = null; try { SimpleTableScanCommand command = new SimpleTableScanCommand(); reader = new BufferedReader(new FileReader(pickedFile)); int lineCount = 0; int parameterIndex = 0; int numberOfMotors = 0; while (reader.ready()) { String line = reader.readLine(); if (line != null) { line = line.trim(); if (line.startsWith("#") || line.length() == 0) { continue; } // line = line.replaceAll("\t", ""); String spliter = "\\s+"; if (line.contains(",")) { spliter = ","; } else if (line.contains("\t")) { spliter = "\t"; } String[] items = line.split(spliter); ArrayList<String> newItems = new ArrayList<String>(); for (int i = 0; i < items.length; i++) { if (items[i].trim().length() > 0) { newItems.add(items[i].trim()); } } items = new String[newItems.size()]; newItems.toArray(items); if (lineCount == 0 && SimpleTableScanTask.containsLetter(line)) { for (int i = 0; i < items.length; i++) { items[i] = items[i].trim(); } numberOfMotors = items.length - 1; String lastItme = items[items.length - 1].toLowerCase(); if (lastItme.startsWith("monitor_")) { command.setScan_mode(lastItme.toUpperCase()); } else if (lastItme.equals("time") || lastItme.equals("unlimited") || lastItme.equals("count") || lastItme.equals("frame") || lastItme.equals("period") || lastItme.equals("count_roi")) { command.setScan_mode(lastItme); } else { command.setScan_mode("time"); numberOfMotors = items.length; newItems.add("time"); } command.setPNames(newItems); command.setNumberOfMotor(numberOfMotors); lineCount++; this.numberOfMotors = numberOfMotors; continue; } else if (lineCount < 2) { if (lineCount == 0) { command.setScan_mode("time"); if (items.length == 4 || items.length == 5) { numberOfMotors = 4; command.setPNames(Arrays.asList(FOUR_COLUMN_NAMES)); } else if (items.length == 7 || items.length == 8) { numberOfMotors = 7; command.setPNames(Arrays.asList(SEVEN_COLUMN_NAMES)); } this.numberOfMotors = numberOfMotors; command.setNumberOfMotor(numberOfMotors); } boolean isBoolean = true; for (int i = 0; i < items.length; i++) { String item = items[i].trim().toLowerCase(); if (!item.equals("1") && !item.equals("0") && !item.equals("true") && !item.equals("false")) { isBoolean = false; } else if (item.equals("1")) { items[i] = "true"; } else if (item.equals("0")) { items[i] = "false"; } } if (isBoolean) { try { if (numberOfMotors > 0) { command.setColumn0(Boolean.valueOf(items[0].trim().toLowerCase())); } if (numberOfMotors > 1) { command.setColumn1(Boolean.valueOf(items[1].trim().toLowerCase())); } if (numberOfMotors > 2) { command.setColumn2(Boolean.valueOf(items[2].trim().toLowerCase())); } if (numberOfMotors > 3) { command.setColumn3(Boolean.valueOf(items[3].trim().toLowerCase())); } if (numberOfMotors > 4) { command.setColumn4(Boolean.valueOf(items[4].trim().toLowerCase())); } if (numberOfMotors > 5) { command.setColumn5(Boolean.valueOf(items[5].trim().toLowerCase())); } if (numberOfMotors > 6) { command.setColumn6(Boolean.valueOf(items[6].trim().toLowerCase())); } if (numberOfMotors > 7) { command.setColumn7(Boolean.valueOf(items[7].trim().toLowerCase())); } if (numberOfMotors > 8) { command.setColumn8(Boolean.valueOf(items[8].trim().toLowerCase())); } if (numberOfMotors > 9) { command.setColumn9(Boolean.valueOf(items[9].trim().toLowerCase())); } } catch (Exception e) { } lineCount++; continue; } } TableScanParameter parameter = new TableScanParameter(); parameterIndex++; parameter.setIndex(parameterIndex); try { if (numberOfMotors > 0) { parameter.setP0(Float.valueOf(items[0])); } if (numberOfMotors > 1) { parameter.setP1(Float.valueOf(items[1])); } if (numberOfMotors > 2) { parameter.setP2(Float.valueOf(items[2])); } if (numberOfMotors > 3) { parameter.setP3(Float.valueOf(items[3])); } if (numberOfMotors > 4) { parameter.setP4(Float.valueOf(items[4])); } if (numberOfMotors > 5) { parameter.setP5(Float.valueOf(items[5])); } if (numberOfMotors > 6) { parameter.setP6(Float.valueOf(items[6])); } if (numberOfMotors > 7) { parameter.setP7(Float.valueOf(items[7])); } if (numberOfMotors > 8) { parameter.setP8(Float.valueOf(items[8])); } if (numberOfMotors > 9) { parameter.setP9(Float.valueOf(items[9])); } parameter.setPreset(Float.valueOf(items[items.length - 1])); parameter.setIsSelected(true); } catch (Exception e) { reader.close(); throw new Exception("failed to interpret the line: " + line); } parameter.setCommand(command); parameter.setLength(numberOfMotors); parameter.setPNames(command.getPNames()); command.getParameterList().add(parameter); } lineCount++; } String filePathString; int FILE_NAME_LENGTH = 60; if (filePath.length() > FILE_NAME_LENGTH) { String spliter = "\\"; if (filePath.contains("/")) { spliter = "/"; } int spliterIndex = filePath.indexOf(spliter, 3); if (spliterIndex > 0 && spliterIndex < 50) { spliterIndex++; filePathString = filePath.substring(0, spliterIndex) + "..." + filePath.subSequence( filePath.length() - FILE_NAME_LENGTH + spliterIndex, filePath.length()); } else { filePathString = filePath.substring(0, 3) + "..." + filePath.subSequence(filePath.length() - FILE_NAME_LENGTH + 3, filePath.length()); ; } } else { filePathString = filePath; } label.setText(filePathString); label.setToolTipText(filePath); reader.close(); return command; } catch (Exception error) { error.printStackTrace(); if (reader != null) { try { reader.close(); } catch (IOException e) { } } MessageDialog.openError(parent.getShell(), "Error", "Failed to load command: " + error.getLocalizedMessage()); } } return null; } }