1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     4 

     5 package org.symbian.tools.wrttools.debug.internal.model;

     6 

     7 import java.util.HashMap;

     8 import java.util.Map;

     9 

    10 import org.chromium.debug.core.model.VmResourceId;

    11 import org.chromium.sdk.Script;

    12 import org.eclipse.core.resources.IFile;

    13 import org.symbian.tools.tmw.previewer.PreviewerPlugin;

    14 

    15 /**

    16  * This object handles the mapping between {@link Script}s and their

    17  * corresponding resources inside Eclipse.

    18  */

    19 public class ResourceManager {

    20 	private final Map<IFile, Script> resourceToScript = new HashMap<IFile, Script>();

    21     private final Map<VmResourceId, IFile> scriptIdToResource = new HashMap<VmResourceId, IFile>();

    22 

    23     public synchronized void addScript(Script script) {

    24 		IFile scriptFile = getResource(script);

    25 		if (scriptFile == null) {

    26 			scriptFile = getFile(script.getName());

    27 			if (scriptFile != null) {

    28                 VmResourceId scriptId = VmResourceId.forScript(script);

    29                 resourceToScript.put(scriptFile, script);

    30                 scriptIdToResource.put(scriptId, scriptFile);

    31 			}

    32 		}

    33 	}

    34 

    35 	public synchronized void clear() {

    36 		resourceToScript.clear();

    37 		scriptIdToResource.clear();

    38 	}

    39 

    40 	private IFile getFile(String name) {

    41 		if (name == null) {

    42 			return null;

    43 		}

    44 		IFile file = PreviewerPlugin.getDefault().getHttpPreviewer().getFileFromUrl(name);

    45 		if (file != null && !file.isAccessible()) {

    46 			file = null;

    47 		}

    48 		return file;

    49 	}

    50 

    51     public synchronized IFile getResource(Script script) {

    52         return scriptIdToResource.get(VmResourceId.forScript(script));

    53 	}

    54 

    55     public synchronized boolean scriptHasResource(Script script) {

    56 		return getResource(script) != null;

    57 	}

    58 

    59     public String translateResourceToScript(IFile resource) {

    60 		return PreviewerPlugin.getDefault().getHttpPreviewer().getHttpUrl(resource);

    61 	}

    62 

    63     public VmResourceId findVmResource(IFile resource) {

    64         Script script = resourceToScript.get(resource);

    65         return script != null ? VmResourceId.forScript(script) : null;

    66     }

    67 

    68     public Script getScript(IFile file) {

    69         return resourceToScript.get(file);

    70     }

    71 }