From 0ed2c1124cf1b9e49a2ec1fa0126a8df09f9e758 Mon Sep 17 00:00:00 2001 From: Andrew Branson Date: Tue, 7 Oct 2014 09:18:11 +0200 Subject: Repackage to org.cristalise --- .../kernel/process/resource/Resource.java | 196 +++++++++++++++++++++ 1 file changed, 196 insertions(+) create mode 100644 src/main/java/org/cristalise/kernel/process/resource/Resource.java (limited to 'src/main/java/org/cristalise/kernel/process/resource/Resource.java') diff --git a/src/main/java/org/cristalise/kernel/process/resource/Resource.java b/src/main/java/org/cristalise/kernel/process/resource/Resource.java new file mode 100644 index 0000000..25b1ee8 --- /dev/null +++ b/src/main/java/org/cristalise/kernel/process/resource/Resource.java @@ -0,0 +1,196 @@ +/** + * This file is part of the CRISTAL-iSE kernel. + * Copyright (c) 2001-2014 The CRISTAL Consortium. All rights reserved. + * + * This library is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published + * by the Free Software Foundation; either version 3 of the License, or (at + * your option) any later version. + * + * This library is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public + * License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + * + * http://www.fsf.org/licensing/licenses/lgpl.html + */ +package org.cristalise.kernel.process.resource; + +//Java +import java.net.MalformedURLException; +import java.net.URL; +import java.util.Enumeration; +import java.util.HashMap; +import java.util.Hashtable; + +import org.cristalise.kernel.common.InvalidDataException; +import org.cristalise.kernel.common.ObjectNotFoundException; +import org.cristalise.kernel.utils.FileStringUtility; +import org.cristalise.kernel.utils.Logger; + + +/************************************************************************** + * + * @author $Author: abranson $ $Date: 2005/10/05 07:39:36 $ + * @version $Revision: 1.71 $ + **************************************************************************/ +public class Resource implements ResourceLoader { + + private final Hashtable txtCache = new Hashtable(); + private final URL baseURL; + private final HashMap moduleBaseURLs = new HashMap(); + private final HashMap allBaseURLs = new HashMap(); + + public Resource() throws InvalidDataException { + baseURL = getURLorResURL("org/cristalise/kernel/utils/resources/"); + allBaseURLs.put(null, baseURL); + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#getKernelBaseURL() + */ + @Override + public URL getKernelBaseURL() { + return baseURL; + } + + @Override + public ClassLoader getClassLoader(String className) { + return Resource.class.getClassLoader(); + } + + @Override + public Class getClassForName(String name) throws ClassNotFoundException { + return Class.forName(name); + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#getKernelResourceURL(java.lang.String) + */ + @Override + public URL getKernelResourceURL(String resName) throws MalformedURLException { + return new URL(baseURL, resName); + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#addModuleBaseURL(java.lang.String, java.net.URL) + */ + @Override + public void addModuleBaseURL(String ns, URL newBaseURL) { + moduleBaseURLs.put(ns, newBaseURL); + allBaseURLs.put(ns, newBaseURL); + Logger.msg("Adding resource URL for "+ns+": "+newBaseURL.toString()); + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#addModuleBaseURL(java.lang.String, java.lang.String) + */ + @Override + public void addModuleBaseURL(String ns, String newBaseURL) throws InvalidDataException { + addModuleBaseURL(ns, getURLorResURL(newBaseURL)); + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#getModuleBaseURLs() + */ + @Override + public HashMap getModuleBaseURLs() { + return moduleBaseURLs; + } + + private HashMap getAllBaseURLs() { + return allBaseURLs; + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#getModuleResourceURL(java.lang.String, java.lang.String) + */ + @Override + public URL getModuleResourceURL(String ns, String resName) throws MalformedURLException { + return new URL(moduleBaseURLs.get(ns), resName); + } + + static private URL getURLorResURL(String newURL) throws InvalidDataException { + URL result; + try { + result = new URL(newURL); + } catch (java.net.MalformedURLException ex) { + //it is assumed that a 'wrong' URL denotes a directory + //of files resolvable from the CLASSPATH + result = Resource.class.getClassLoader().getResource(newURL); + } + if (result == null) { + Logger.error("URL "+newURL+" could not be found"); + throw new InvalidDataException(); + } + return result; + } + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#findTextResource(java.lang.String) + */ + + @Override + public String findTextResource(String resName) { + for (String ns : getAllBaseURLs().keySet()) { + try { + return getTextResource(ns, resName); + } catch (ObjectNotFoundException ex) { } + } + Logger.warning("Text resource '"+resName+"' not found."); + return null; + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#getAllTextResources(java.lang.String) + */ + @Override + public HashMap getAllTextResources(String resName) { + HashMap results = new HashMap(); + for (String ns : getAllBaseURLs().keySet()) { + try { + results.put(ns, getTextResource(ns, resName)); + } catch (ObjectNotFoundException ex) { } + } + return results; + } + + /* (non-Javadoc) + * @see org.cristalise.kernel.utils.ResourceLoader#getTextResource(java.lang.String, java.lang.String) + */ + @Override + public String getTextResource(String ns, String resName) throws ObjectNotFoundException + // throws IOException + { + Logger.msg(8, "Resource::getTextResource() - Getting resource from "+ns+": " + resName); + + if (txtCache.containsKey(ns+'/'+resName)) { + return txtCache.get(ns+'/'+resName); + } + + try { + + String newRes = null; + URL loc; + + if (ns == null) // kernel + loc = getKernelResourceURL(resName); + else + loc = getModuleResourceURL(ns, resName); + Logger.msg(5, "Loading resource: "+loc.toString()); + newRes = FileStringUtility.url2String(loc); + txtCache.put(ns+'/'+resName, newRes); + return newRes; + } catch (Exception e) { + throw new ObjectNotFoundException(e.getMessage()); + } + } + + @Override + public Enumeration getModuleDefURLs() throws Exception { + return ClassLoader.getSystemResources("META-INF/cristal/module.xml"); + } +} -- cgit v1.2.3