Repackage to org.cristalise

1 files changed, 196 insertions, 0 deletions

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<String, String> txtCache = new Hashtable<String, String>();

+    private final URL baseURL;

+    private final HashMap<String, URL> moduleBaseURLs = new HashMap<String, URL>();

+    private final HashMap<String, URL> allBaseURLs = new HashMap<String, URL>();

+

+    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<String, URL> getModuleBaseURLs() {

+        return moduleBaseURLs;

+    }

+    

+    private HashMap<String, URL> 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<String, String> getAllTextResources(String resName) {

+    	HashMap<String, String> results = new HashMap<String, String>();

+    	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<URL> getModuleDefURLs() throws Exception {

+		return ClassLoader.getSystemResources("META-INF/cristal/module.xml");

+	}

+}