org.solrsystem.Main.java Source code

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Here is the source code for org.solrsystem.Main.java

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/*
 * Copyright (c) 2013. Needham Software LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.solrsystem;

import org.apache.http.HttpException;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

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

public class Main {

    public static final String GRADLE = "http://services.gradle.org/distributions/gradle-1.11-bin.zip";

    private static InstallUserInterface UI;

    public static void main(String[] args) throws IOException, HttpException {

        if (GraphicsEnvironment.isHeadless()) {
            UI = new TextInstall();
        } else {
            UI = new GraphicalInstall();
        }

        if (UI.confirm("Do you want to create ./SolrSystem in this directory and install SolrSystem?")) {
            File solrSystemDir = new File("SolrSystem");
            //noinspection ResultOfMethodCallIgnored
            solrSystemDir.mkdir();
            UI.downLoad(GRADLE);

            File file = new File(solrSystemDir, "gradle-1.11-bin.zip");
            if (!file.exists()) {
                doGetToFile(GRADLE, file.getCanonicalPath(), UI);
            }
        }

    }

    public static boolean doGetToFile(String url, String localFilePath, DownloadStatusListener listener)
            throws HttpException, IOException {
        final HttpGet request = new HttpGet(url);
        final HttpResponse resp;
        try {
            DefaultHttpClient httpClient = new DefaultHttpClient();

            resp = httpClient.execute(request);
            long totalnum = resp.getEntity().getContentLength();
            if (resp.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                FileOutputStream out = new FileOutputStream(localFilePath);

                InputStream inputStream = resp.getEntity().getContent();

                long bytesRead = 0;
                int bufferSize = listener.progressInterval();
                byte b[] = new byte[bufferSize];

                int cnt;
                System.out.println("reading " + bufferSize);
                while ((cnt = inputStream.read(b)) != -1) {
                    out.write(b, 0, cnt);
                    bytesRead += cnt;
                    listener.onProgress(bytesRead, totalnum);
                }
                out.flush();
                out.close();

                //resp.getEntity().writeTo(out);

                out.close();
                return true;
            } else {
                System.out.println("Download Failed:" + resp.getStatusLine());
                return false;
            }
        } catch (final IOException e) {
            e.printStackTrace();
            throw new HttpException("IOException " + e.toString());
        }
    }

}