1 files changed, 104 insertions, 0 deletions
diff --git a/engine/src/core-plugins/com/jme3/asset/plugins/FileLocator.java b/engine/src/core-plugins/com/jme3/asset/plugins/FileLocator.java
new file mode 100644
index 0000000..f448fa3
--- /dev/null
+++ b/engine/src/core-plugins/com/jme3/asset/plugins/FileLocator.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2009-2010 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.jme3.asset.plugins;
+
+import com.jme3.asset.*;
+import java.io.*;
+
+/**
+ * <code>FileLocator</code> allows you to specify a folder where to
+ * look for assets. 
+ * @author Kirill Vainer
+ */
+public class FileLocator implements AssetLocator {
+
+    private File root;
+
+    public void setRootPath(String rootPath) {
+        if (rootPath == null)
+            throw new NullPointerException();
+        
+        try {
+            root = new File(rootPath).getCanonicalFile();
+            if (!root.isDirectory()){
+                throw new IllegalArgumentException("Given root path \"" + root + "\" not a directory");
+            }
+        } catch (IOException ex) {
+            throw new AssetLoadException("Root path is invalid", ex);
+        }
+    }
+
+    private static class AssetInfoFile extends AssetInfo {
+
+        private File file;
+
+        public AssetInfoFile(AssetManager manager, AssetKey key, File file){
+            super(manager, key);
+            this.file = file;
+        }
+
+        @Override
+        public InputStream openStream() {
+            try{
+                return new FileInputStream(file);
+            }catch (FileNotFoundException ex){
+                // NOTE: Can still happen even if file.exists() is true, e.g.
+                // permissions issue and similar
+                throw new AssetLoadException("Failed to open file: " + file, ex);
+            }
+        }
+    }
+
+    public AssetInfo locate(AssetManager manager, AssetKey key) {
+        String name = key.getName();
+        File file = new File(root, name);
+        if (file.exists() && file.isFile()){
+            try {
+                // Now, check asset name requirements
+                String canonical = file.getCanonicalPath();
+                String absolute = file.getAbsolutePath();
+                if (!canonical.endsWith(absolute)){
+                    throw new AssetNotFoundException("Asset name doesn't match requirements.\n"+
+                                                     "\"" + canonical + "\" doesn't match \"" + absolute + "\"");
+                }
+            } catch (IOException ex) {
+                throw new AssetLoadException("Failed to get file canonical path " + file, ex);
+            }
+            
+            return new AssetInfoFile(manager, key, file);
+        }else{
+            return null;
+        }
+    }
+
+}