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+/*
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+ * Copyright (c) 2009-2010 jMonkeyEngine
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+ * All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without
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+ * modification, are permitted provided that the following conditions are
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+ * met:
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+ *
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+ * * Redistributions of source code must retain the above copyright
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+ * notice, this list of conditions and the following disclaimer.
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+ *
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+ * * Redistributions in binary form must reproduce the above copyright
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+ * notice, this list of conditions and the following disclaimer in the
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+ * documentation and/or other materials provided with the distribution.
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+ *
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+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
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+ * may be used to endorse or promote products derived from this software
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+ * without specific prior written permission.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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+ */
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+package com.jme3.gde.core.assets;
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+
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+import com.jme3.asset.AssetInfo;
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+import com.jme3.asset.AssetKey;
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+import com.jme3.asset.AssetLoadException;
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+import com.jme3.asset.AssetLocator;
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+import com.jme3.asset.AssetManager;
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+import com.jme3.asset.AssetNotFoundException;
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+import java.io.File;
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+import java.io.FileInputStream;
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+import java.io.FileNotFoundException;
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+import java.io.IOException;
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+import java.io.InputStream;
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+
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+/**
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+ * Special version of FileLocator that cuts off the folder part
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+ * of the path prior to loading it from the folder.
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+ * <br>
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+ * E.g. using root = <code>C:\Blah\</code> and then loading a model that uses
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+ * some texture like <code>Textures/Something/Tex.png</code>
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+ * will actually attempt to load it from
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+ * <code>C:\Blah\Tex.png</code> but the texture will still
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+ * appear to have been loaded from <code>Textures/Something/Tex.png</code>.
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+ *
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+ * @author Kirill Vainer
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+ */
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+public class RelativeOnlyFileLocator implements AssetLocator {
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+
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+ private File root;
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+
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+ public void setRootPath(String rootPath) {
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+ if (rootPath == null)
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+ throw new NullPointerException();
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+
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+ try {
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+ root = new File(rootPath).getCanonicalFile();
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+ if (!root.isDirectory()){
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+ throw new IllegalArgumentException("Given root path \"" + root + "\" is not a directory");
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+ }
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+ } catch (IOException ex) {
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+ throw new AssetLoadException("Root path is invalid", ex);
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+ }
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+ }
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+
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+ private static class AssetInfoFile extends AssetInfo {
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+
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+ private File file;
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+
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+ public AssetInfoFile(AssetManager manager, AssetKey key, File file){
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+ super(manager, key);
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+ this.file = file;
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+ }
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+
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+ @Override
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+ public InputStream openStream() {
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+ try{
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+ return new FileInputStream(file);
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+ }catch (FileNotFoundException ex){
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+ // NOTE: Can still happen even if file.exists() is true, e.g.
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+ // permissions issue and similar
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+ throw new AssetLoadException("Failed to open file: " + file, ex);
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+ }
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+ }
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+ }
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+
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+ public AssetInfo locate(AssetManager assetManager, AssetKey assetKey) {
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+ // Load the asset from root, based on the name of the file in the key
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+ // (THIS IS THE ONLY PART THAT DIFFERS FROM FILELOCATOR)
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+ String fileName = assetKey.getName().substring(assetKey.getFolder().length());
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+
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+ // This is copied verbatim from FileLocator in the engine.
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+ File file = new File(root, fileName);
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+ if (file.exists() && file.isFile()) {
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+ try {
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+ // Now, check asset name requirements
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+ String canonical = file.getCanonicalPath();
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+ String absolute = file.getAbsolutePath();
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+ if (!canonical.endsWith(absolute)) {
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+ throw new AssetNotFoundException("Asset name doesn't match requirements.\n"
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+ + "\"" + canonical + "\" doesn't match \"" + absolute + "\"");
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+ }
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+ } catch (IOException ex) {
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+ throw new AssetLoadException("Failed to get file canonical path " + file, ex);
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+ }
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+
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+ return new AssetInfoFile(assetManager, assetKey, file);
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+ } else {
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+ return null;
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+ }
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+ }
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+}
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