org.openmeetings.app.documents.GenerateThumbs.java Source code

Introduction

Here is the source code for org.openmeetings.app.documents.GenerateThumbs.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.openmeetings.app.documents;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashMap;

import org.openmeetings.app.remote.red5.ScopeApplicationAdapter;
import org.openmeetings.utils.ProcessHelper;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;

public class GenerateThumbs {

    private static final Logger log = Red5LoggerFactory.getLogger(GenerateThumbs.class);

    @Autowired
    private GenerateImage generateImage;

    public HashMap<String, String> generateThumb(String pre, String current_dir, String filepath,
            Integer thumbSize) {
        // Init variables
        File f = new File(filepath);
        String name = f.getName();
        String folder = f.getParentFile().getAbsolutePath() + File.separatorChar;

        String[] argv = new String[] { generateImage.getPathToImageMagic(), "-thumbnail",
                Integer.toString(thumbSize) + "x" + Integer.toString(thumbSize), filepath + ".jpg",
                folder + pre + name + ".jpg" };

        log.debug("START generateThumb ################# ");
        for (int i = 0; i < argv.length; i++) {
            log.debug(" i " + i + " argv-i " + argv[i]);
        }
        log.debug("END generateThumb ################# ");

        if (System.getProperty("os.name").toUpperCase().indexOf("WINDOWS") == -1) {
            return ProcessHelper.executeScript("generateBatchThumbByWidth", argv);
        } else {
            return this.processImageWindows(argv);
        }
    }

    public HashMap<String, String> decodePDF(String inputfile, String outputfile) {

        String[] argv = new String[] { generateImage.getPathToImageMagic(), // FIXME
                inputfile, outputfile };

        if (System.getProperty("os.name").toUpperCase().indexOf("WINDOWS") == -1) {
            return ProcessHelper.executeScript("generateBatchThumbByWidth", argv);
        } else {
            return this.processImageWindows(argv);
        }

    }

    public HashMap<String, String> generateBatchThumb(String current_dir, String inputfile, String outputpath,
            Integer thumbSize, String pre) {

        if (System.getProperty("os.name").toUpperCase().indexOf("WINDOWS") == -1) {
            String[] argv = new String[] { generateImage.getPathToImageMagic(), "-thumbnail", // FIXME
                    Integer.toString(thumbSize), inputfile, outputpath + "_" + pre + "_page-%04d.jpg" };

            return ProcessHelper.executeScript("generateBatchThumbByWidth", argv);
        } else {

            String[] argv = new String[] { generateImage.getPathToImageMagic(), "-thumbnail", // FIXME
                    Integer.toString(thumbSize), inputfile, outputpath + "_" + pre + "_page-%%04d.jpg" };

            // return GenerateSWF.executeScript("generateBatchThumbByWidth",
            // argv);
            return this.processImageWindows(argv);
        }
    }

    public HashMap<String, String> generateImageBatchByWidth(String current_dir, String inputfile,
            String outputpath, Integer thumbWidth, String pre) {

        String[] argv = new String[] { generateImage.getPathToImageMagic(), "-resize", Integer.toString(thumbWidth),
                inputfile, outputpath + "_" + pre + "_page.png" };

        if (System.getProperty("os.name").toUpperCase().indexOf("WINDOWS") == -1) {
            return ProcessHelper.executeScript("generateBatchThumbByWidth", argv);
        } else {
            return this.processImageWindows(argv);
        }
    }

    public HashMap<String, String> processImageWindows(String[] args) {
        HashMap<String, String> returnMap = new HashMap<String, String>();
        returnMap.put("process", "processImageWindows");
        try {

            // Init variables
            String[] cmd;
            String executable_fileName = "";

            String runtimeFile = "interviewMerge.bat";
            executable_fileName = ScopeApplicationAdapter.batchFileDir + runtimeFile;

            cmd = new String[4];
            cmd[0] = "cmd.exe";
            cmd[1] = "/C";
            cmd[2] = "start";
            cmd[3] = executable_fileName;

            // log.debug("executable_fileName: "+executable_fileName);

            // Create the Content of the Converter Script (.bat or .sh File)

            String fileContent = "";

            for (int k = 0; k < args.length; k++) {
                if (k != 0) {
                    fileContent += " ";
                }
                fileContent += args[k];
            }

            fileContent += ScopeApplicationAdapter.lineSeperator + "exit";

            File previous = new File(executable_fileName);
            if (previous.exists()) {
                previous.delete();
            }

            // execute the Script
            FileOutputStream fos = new FileOutputStream(executable_fileName);
            fos.write(fileContent.getBytes());
            fos.close();

            Runtime rt = Runtime.getRuntime();
            returnMap.put("command", cmd.toString());

            Process proc = rt.exec(cmd);

            InputStream stderr = proc.getErrorStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(stderr));
            String line = null;
            String error = "";
            while ((line = br.readLine()) != null) {
                error += line;
                // log.debug("line: "+line);
            }
            br.close();
            returnMap.put("error", error);
            int exitVal = proc.waitFor();
            returnMap.put("exitValue", "" + exitVal);
            return returnMap;
        } catch (Throwable t) {
            t.printStackTrace();
            returnMap.put("error", t.getMessage());
            returnMap.put("exitValue", "-1");
            return returnMap;
        }
    }
}