com.microsoft.azure.hdinsight.util.HDInsightJobViewUtils.java Source code

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Here is the source code for com.microsoft.azure.hdinsight.util.HDInsightJobViewUtils.java

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/**
 * Copyright (c) Microsoft Corporation
 * 
 * All rights reserved. 
 * 
 * MIT License
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files 
 * (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, 
 * publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH 
 * THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package com.microsoft.azure.hdinsight.util;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.URL;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import org.apache.commons.io.FileUtils;

import com.microsoft.azure.hdinsight.jobs.JobViewDummyHttpServer;
import com.microsoft.azureexplorer.Activator;
import com.microsoft.tooling.msservices.components.DefaultLoader;
import com.microsoft.tooling.msservices.helpers.StringHelper;
import com.microsoftopentechnologies.wacommon.utils.PluginUtil;

public class HDInsightJobViewUtils {
    private static final int BUFFER_SIZE = 4096;
    private static final String HTML_ZIP_FILE_NAME = "hdinsight_jobview_html.zip";
    private static final String HDINSIGHT_JOB_VIEW_JAR_NAME = "hdinsight-job-view.jar";
    private static final String HTML_FOLDER_NAME = "com.microsoft.azure.hdinsight";
    private static final String HDINSIGHT_JOBVIEW_EXTRACT_FLAG = "com.microsoft.azure.hdinsight.html.extract";

    public static void closeJobViewHttpServer() {
        JobViewDummyHttpServer.close();
    }

    public static void checkInitlize() {
        final String property = DefaultLoader.getIdeHelper().getProperty(HDINSIGHT_JOBVIEW_EXTRACT_FLAG);
        if (StringHelper.isNullOrWhiteSpace(property)) {
            extractJobViewResource();
        }
        JobViewDummyHttpServer.initlize();
    }

    private static void extractJobViewResource() {
        URL url = HDInsightJobViewUtils.class.getResource("/resources/" + HTML_ZIP_FILE_NAME);
        URL hdinsightJobViewJarUrl = HDInsightJobViewUtils.class
                .getResource("/resources/" + HDINSIGHT_JOB_VIEW_JAR_NAME);
        File indexRootFile = new File(PluginUtil.pluginFolder + File.separator + HTML_FOLDER_NAME);
        if (!indexRootFile.exists()) {
            indexRootFile.mkdir();
        }
        File toFile = new File(indexRootFile.getAbsolutePath(), HTML_ZIP_FILE_NAME);
        File hdinsightJobViewToFile = new File(indexRootFile.getAbsolutePath(), HDINSIGHT_JOB_VIEW_JAR_NAME);
        try {
            FileUtils.copyURLToFile(url, toFile);
            FileUtils.copyURLToFile(hdinsightJobViewJarUrl, hdinsightJobViewToFile);
            HDInsightJobViewUtils.unzip(toFile.getAbsolutePath(), toFile.getParent());
            DefaultLoader.getIdeHelper().setProperty(HDINSIGHT_JOBVIEW_EXTRACT_FLAG, "true");
        } catch (IOException e) {
            Activator.getDefault().log("Extract Job View Folder", e);
        }
    }

    private static void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
        BufferedOutputStream bos = new BufferedOutputStream(new java.io.FileOutputStream(filePath));
        byte[] bytesIn = new byte[BUFFER_SIZE];
        int read = 0;
        while ((read = zipIn.read(bytesIn)) != -1) {
            bos.write(bytesIn, 0, read);
        }
        bos.close();
    }

    public static void unzip(String zipFilePath, String destDirectory) throws IOException {
        File destDir = new File(destDirectory);
        if (!destDir.exists()) {
            destDir.mkdir();
        }
        ZipInputStream zipIn = new ZipInputStream(new FileInputStream(zipFilePath));
        ZipEntry entry = zipIn.getNextEntry();
        while (entry != null) {
            String filePath = destDirectory + File.separator + entry.getName();
            if (!entry.isDirectory()) {
                extractFile(zipIn, filePath);
            } else {
                File dir = new File(filePath);
                dir.mkdir();
            }
            zipIn.closeEntry();
            entry = zipIn.getNextEntry();
        }
        zipIn.close();
    }
}