com.liferay.web.extender.internal.webbundle.WebBundleURLConnection.java Source code

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Here is the source code for com.liferay.web.extender.internal.webbundle.WebBundleURLConnection.java

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/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.web.extender.internal.webbundle;

import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.HttpUtil;
import com.liferay.portal.kernel.util.StreamUtil;
import com.liferay.portal.osgi.OSGiConstants;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import java.net.URL;
import java.net.URLConnection;

import java.util.Map;

/**
 * @author Raymond Aug
 */
public class WebBundleURLConnection extends URLConnection {

    public WebBundleURLConnection(URL url) {
        super(url);
    }

    @Override
    public void connect() throws IOException {
    }

    @Override
    public InputStream getInputStream() throws IOException {
        URL url = getURL();

        String path = url.getPath();
        String queryString = url.getQuery();

        Map<String, String[]> parameterMap = HttpUtil.getParameterMap(queryString);

        if (!parameterMap.containsKey(OSGiConstants.WEB_CONTEXTPATH)) {
            throw new IllegalArgumentException(OSGiConstants.WEB_CONTEXTPATH + " parameter is required");
        }

        URL innerURL = new URL(path);

        File tempFile = FileUtil.createTempFile("war");

        StreamUtil.transfer(innerURL.openStream(), new FileOutputStream(tempFile));

        try {
            WebBundleProcessor webBundleProcessor = new WebBundleProcessor(tempFile, parameterMap);

            webBundleProcessor.process();

            return webBundleProcessor.getInputStream();
        } finally {
            tempFile.delete();
        }
    }

}