X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.application%2Fsrc%2Forg%2Fsimantics%2Fapplication%2Farguments%2FApplicationUtils.java;fp=bundles%2Forg.simantics.application%2Fsrc%2Forg%2Fsimantics%2Fapplication%2Farguments%2FApplicationUtils.java;h=43460fd420807dff33c5fa7f1a42c025b0a7bc33;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08 diff --git a/bundles/org.simantics.application/src/org/simantics/application/arguments/ApplicationUtils.java b/bundles/org.simantics.application/src/org/simantics/application/arguments/ApplicationUtils.java new file mode 100644 index 000000000..43460fd42 --- /dev/null +++ b/bundles/org.simantics.application/src/org/simantics/application/arguments/ApplicationUtils.java @@ -0,0 +1,153 @@ +/******************************************************************************* + * Copyright (c) 2007, 2010 Association for Decentralized Information Management + * in Industry THTH ry. + * 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: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.application.arguments; + +import java.io.IOException; +import java.io.InputStream; +import java.net.URL; +import java.util.ArrayList; +import java.util.List; + +import org.eclipse.core.runtime.IStatus; +import org.eclipse.core.runtime.Platform; +import org.eclipse.core.runtime.Status; +import org.simantics.application.internal.Activator; + +/** + * Simple utilities for IApplication implementation. + */ +public class ApplicationUtils { + + /** + * Appends properties from the specified URL to system properties which are + * available through {@link System#getProperties()}. + * + * @param props a valid URL or null for no operation. + */ + public static void loadSystemProperties(URL props) { + if (props != null) { + InputStream in = null; + try { + in = props.openStream(); + System.getProperties().load(in); + } catch (IOException e) { + Activator.getDefault().getLog().log(new Status(IStatus.WARNING, Activator.PLUGIN_ID, "Failed to load system properties: " + props, e)); + } finally { + try { + if (in != null) + in.close(); + } catch (IOException e) { + Activator.getDefault().getLog().log(new Status(IStatus.WARNING, Activator.PLUGIN_ID, "Failed to close system properties: " + props, e)); + } + } + } + } + + /** + * Decodes a dot ('.') -separated path into the path elements. The '\' + * character is used for escaping dots themselves. + * + *

Examples of the results:

+ * + * + * @param dottedPath + * @return the elements of the dot-separated path as a String array + */ + public static String[] decodePath(String dottedPath) { + if (dottedPath == null) + return new String[0]; + + List result = new ArrayList(); + + int index = 0; + while (dottedPath.length() > 0) { + int dotIndex = dottedPath.indexOf(".", index); + // Skip escaped dots + if (dotIndex < 0) { + if (dottedPath.length() > 0) { + // Take the rest of the string and stop splitting. + result.add(dottedPath.replace("\\.", ".")); + } + break; + } + if (dotIndex > 0 && dottedPath.charAt(dotIndex - 1) == '\\') { + index = dotIndex + 1; + continue; + } + // Grab until the next dot and replace any escaped dots with dots. + String pathPart = dottedPath.substring(0, dotIndex); + result.add(pathPart.replace("\\.", ".")); + dottedPath = dottedPath.substring(dotIndex + 1); + index = 0; + } + + return result.toArray(new String[result.size()]); + } + + /** + * Encodes a path of names into a single dot-separated ('.') path string. + * All '.' characters in the path segment names themselves are escaped with + * a single '\' character before concatenation into the result. + * + *

+ * String encoded with this method can be decoded with + * {@link #decodePath(String)}. + * + * @param namePath a path of names + * @return the path encoded into a single string + */ + public static String encodePath(String[] namePath) { + StringBuilder b = new StringBuilder(); + boolean first = true; + for (String s : namePath) { + if (!first) + b.append('.'); + first = false; + b.append(s.replace(".", "\\.")); + } + return b.toString(); + } + + /** + * Parse the arguments received by the application (available through + * {@link Platform#getApplicationArgs()}) for instances of the specified + * arguments. Found matches are contained in the resulting IArguments + * instance. + * + * @param accepted the arguments that should be parsed + * @return the argument matches that were found + */ + public static IArguments parseApplicationArguments(IArgumentFactory... accepted) { + return Arguments.parse(Platform.getApplicationArgs(), accepted); + } + +// public static void main(String[] args) { +// System.out.println(Arrays.toString(decodePath("abc"))); +// System.out.println(Arrays.toString(decodePath("abc.def.efg"))); +// System.out.println(Arrays.toString(decodePath("abc\\..def\\..ghi.jkl"))); +// System.out.println(Arrays.toString(decodePath("abc\\..def\\..ghi.jkl\\."))); +// System.out.println(Arrays.toString(decodePath("abc\\..def\\..ghi.jkl\\.."))); +// System.out.println(Arrays.toString(decodePath("abc\\..def.ghi\\.jkl"))); +// System.out.println(Arrays.toString(decodePath("abc\\..def.ghi\\.jkl."))); +// System.out.println(Arrays.toString(decodePath("abc\\..def.ghi\\.jkl\\.."))); +// } + +}