| /*=============================================================================# |
| # Copyright (c) 2009, 2021 Stephan Wahlbrink and others. |
| # |
| # This program and the accompanying materials are made available under the |
| # terms of the Eclipse Public License 2.0 which is available at |
| # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 |
| # which is available at https://www.apache.org/licenses/LICENSE-2.0. |
| # |
| # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 |
| # |
| # Contributors: |
| # Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation |
| #=============================================================================*/ |
| |
| package org.eclipse.statet.internal.rj.servi; |
| |
| import static org.eclipse.statet.jcommons.lang.SystemUtils.OS_WIN; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Properties; |
| |
| import org.eclipse.statet.jcommons.lang.NonNullByDefault; |
| import org.eclipse.statet.jcommons.lang.Nullable; |
| import org.eclipse.statet.jcommons.lang.SystemUtils; |
| import org.eclipse.statet.jcommons.runtime.CommonsRuntime; |
| import org.eclipse.statet.jcommons.status.ErrorStatus; |
| import org.eclipse.statet.jcommons.status.InfoStatus; |
| import org.eclipse.statet.jcommons.status.WarningStatus; |
| |
| import org.eclipse.statet.rj.servi.RServiUtils; |
| |
| |
| @NonNullByDefault |
| public class Utils { |
| |
| |
| public static void preLoad() { |
| // Load class for errors |
| new InfoStatus(RServiUtils.RJ_SERVI_ID, Messages.StartNode_error_message); |
| } |
| |
| /** |
| * Utility class to parse command line arguments. |
| */ |
| private static class ArgumentParser { |
| |
| private final String args; |
| private int index= 0; |
| private int ch= -1; |
| |
| public ArgumentParser(final String args) { |
| this.args= args; |
| } |
| |
| public List<String> parseArguments() { |
| final List<String> v= new ArrayList<>(); |
| |
| this.ch= getNext(); |
| while (this.ch > 0) { |
| if (Character.isWhitespace((char) this.ch)) { |
| this.ch= getNext(); |
| } |
| else { |
| if (this.ch == '"') { |
| final StringBuffer buf= new StringBuffer(); |
| buf.append(parseString()); |
| if (buf.length() == 0 && SystemUtils.getLocalOs() == OS_WIN) { |
| // empty string on windows platform |
| buf.append("\"\""); //$NON-NLS-1$ |
| } |
| v.add(buf.toString()); |
| } |
| else { |
| v.add(parseToken()); |
| } |
| } |
| } |
| |
| return v; |
| } |
| |
| private int getNext() { |
| if (this.index < this.args.length()) { |
| return this.args.charAt(this.index++); |
| } |
| return -1; |
| } |
| |
| private String parseString() { |
| this.ch= getNext(); |
| if (this.ch == '"') { |
| this.ch= getNext(); |
| return ""; //$NON-NLS-1$ |
| } |
| final StringBuffer buf= new StringBuffer(); |
| while (this.ch > 0 && this.ch != '"') { |
| if (this.ch == '\\') { |
| this.ch= getNext(); |
| if (this.ch != '"') { // Only escape double quotes |
| buf.append('\\'); |
| } |
| else { |
| if (SystemUtils.getLocalOs() == OS_WIN) { |
| buf.append('\\'); |
| } |
| } |
| } |
| if (this.ch > 0) { |
| buf.append((char) this.ch); |
| this.ch= getNext(); |
| } |
| } |
| this.ch= getNext(); |
| return buf.toString(); |
| } |
| |
| private String parseToken() { |
| final StringBuffer buf= new StringBuffer(); |
| |
| while (this.ch > 0 && !Character.isWhitespace((char) this.ch)) { |
| if (this.ch == '\\') { |
| this.ch= getNext(); |
| if (Character.isWhitespace((char) this.ch)) { |
| // end of token, don't lose trailing backslash |
| buf.append('\\'); |
| return buf.toString(); |
| } |
| if (this.ch > 0) { |
| if (this.ch != '"') { // Only escape double quotes |
| buf.append('\\'); |
| } |
| else { |
| if (SystemUtils.getLocalOs() == OS_WIN) { |
| buf.append('\\'); |
| } |
| } |
| buf.append((char) this.ch); |
| this.ch= getNext(); |
| } |
| else if (this.ch == -1) { // Don't lose a trailing backslash |
| buf.append('\\'); |
| } |
| } |
| else if (this.ch == '"') { |
| buf.append(parseString()); |
| } |
| else { |
| buf.append((char) this.ch); |
| this.ch= getNext(); |
| } |
| } |
| return buf.toString(); |
| } |
| } |
| |
| public static List<String> parseArguments(final @Nullable String args) { |
| if (args == null) { |
| return new ArrayList<>(0); |
| } |
| else { |
| final ArgumentParser parser= new ArgumentParser(args); |
| return parser.parseArguments(); |
| } |
| } |
| |
| public static void logInfo(final String message) { |
| CommonsRuntime.log(new InfoStatus(RServiUtils.RJ_SERVI_ID, message)); |
| } |
| |
| public static void logInfo(final String message, final Throwable e) { |
| CommonsRuntime.log(new InfoStatus(RServiUtils.RJ_SERVI_ID, message, e)); |
| } |
| |
| public static void logWarning(final String message) { |
| CommonsRuntime.log(new WarningStatus(RServiUtils.RJ_SERVI_ID, message)); |
| } |
| |
| public static void logWarning(final String message, final Throwable e) { |
| CommonsRuntime.log(new WarningStatus(RServiUtils.RJ_SERVI_ID, message, e)); |
| } |
| |
| public static void logError(final String message) { |
| CommonsRuntime.log(new ErrorStatus(RServiUtils.RJ_SERVI_ID, message)); |
| } |
| |
| public static void logError(final String message, final Throwable e) { |
| CommonsRuntime.log(new ErrorStatus(RServiUtils.RJ_SERVI_ID, message, e)); |
| } |
| |
| public static @Nullable String getProperty(final Properties properties, |
| final String key, final @Nullable String altKey) { |
| String s= properties.getProperty(key); |
| if (s == null && altKey != null) { |
| s= properties.getProperty(altKey); |
| } |
| return s; |
| } |
| |
| public static void setProperty(final Properties properties, |
| final String key, final @Nullable String value) { |
| if (value != null) { |
| properties.setProperty(key, value); |
| } |
| else { |
| properties.remove(key); |
| } |
| } |
| |
| |
| private Utils() { |
| } |
| |
| } |