1 files changed, 110 insertions, 0 deletions
diff --git a/gnu/java/net/loader/Resource.java b/gnu/java/net/loader/Resource.java
new file mode 100644
index 000000000..e367a3388
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+++ b/gnu/java/net/loader/Resource.java
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+/* Resource.java -- a resource for URLLoader
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.java.net.loader;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.security.CodeSource;
+import java.security.cert.Certificate;
+
+/**
+ * A <code>Resource</code> represents a resource in some
+ * <code>URLLoader</code>. It also contains all information (e.g.,
+ * <code>URL</code>, <code>CodeSource</code>, <code>Manifest</code> and
+ * <code>InputStream</code>) that is necessary for loading resources
+ * and creating classes from a <code>URL</code>.
+ */
+public abstract class Resource
+{
+  final URLLoader loader;
+
+  public Resource(URLLoader loader)
+  {
+    this.loader = loader;
+  }
+
+  /**
+   * Returns the non-null <code>CodeSource</code> associated with
+   * this resource.
+   */
+  public CodeSource getCodeSource()
+  {
+    Certificate[] certs = getCertificates();
+    if (certs == null)
+      return loader.noCertCodeSource;
+    else
+      return new CodeSource(loader.baseURL, certs);
+  }
+
+  /**
+   * Returns <code>Certificates</code> associated with this
+   * resource, or null when there are none.
+   */
+  public Certificate[] getCertificates()
+  {
+    return null;
+  }
+
+  /**
+   * Return the URLLoader for this resource.
+   */
+  public final URLLoader getLoader()
+  {
+    return loader;
+  }
+
+  /**
+   * Return a <code>URL</code> that can be used to access this resource.
+   */
+  public abstract URL getURL();
+
+  /**
+   * Returns the size of this <code>Resource</code> in bytes or
+   * <code>-1</code> when unknown.
+   */
+  public abstract int getLength();
+
+  /**
+   * Returns the non-null <code>InputStream</code> through which
+   * this resource can be loaded.
+   */
+  public abstract InputStream getInputStream() throws IOException;
+}
+\ No newline at end of file