bundles/org.eclipse.e4.pde.webui/src/org/eclipse/e4/pde/internal/webui/BundleEntryHttpContext.java

/*******************************************************************************
 * Copyright (c) 2007 IBM Corporation, Cognos Incorporated and others
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *******************************************************************************/
package org.eclipse.e4.pde.internal.webui;

import java.io.IOException;
import java.net.URL;
import java.util.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.osgi.framework.Bundle;
import org.osgi.service.http.HttpContext;

public class BundleEntryHttpContext implements HttpContext {
    private Bundle bundle;
    private String bundlePath;

    public BundleEntryHttpContext(Bundle bundle) {
        this.bundle = bundle;
    }

    public BundleEntryHttpContext(Bundle b, String bundlePath) {
        this(b);
        if (bundlePath != null) {
            if (bundlePath.endsWith("/")) //$NON-NLS-1$
                bundlePath = bundlePath.substring(0, bundlePath.length() - 1);

            if (bundlePath.length() == 0)
                bundlePath = null;
        }
        this.bundlePath = bundlePath;
    }

    public String getMimeType(String arg0) {
        return null;
    }

    public boolean handleSecurity(HttpServletRequest arg0, HttpServletResponse arg1) throws IOException {
        return true;
    }

    public URL getResource(String resourceName) {
        if (bundlePath != null)
            resourceName = bundlePath + resourceName;

        int lastSlash = resourceName.lastIndexOf('/');
        if (lastSlash == -1)
            return null;

        if (resourceName.endsWith("/"))
            resourceName += "index.html";

        String path = resourceName.substring(0, lastSlash);
        if (path.length() == 0)
            path = "/"; //$NON-NLS-1$
        String file = resourceName.substring(lastSlash + 1);
        Enumeration entryPaths = bundle.findEntries(path, file, false);

        if (entryPaths != null && entryPaths.hasMoreElements())
            return (URL) entryPaths.nextElement();

        return null;
    }

    public Set getResourcePaths(String path) {
        if (bundlePath != null)
            path = bundlePath + path;

        Enumeration entryPaths = bundle.findEntries(path, null, false);
        if (entryPaths == null)
            return null;

        Set result = new HashSet();
        while (entryPaths.hasMoreElements()) {
            URL entryURL = (URL) entryPaths.nextElement();
            String entryPath = entryURL.getFile();

            if (bundlePath == null)
                result.add(entryPath);
            else
                result.add(entryPath.substring(bundlePath.length()));
        }
        return result;
    }
}