org.alfresco.util.OpenOfficeVariant.java Source code

Introduction

Here is the source code for org.alfresco.util.OpenOfficeVariant.java

Source

/*
 * #%L
 * Alfresco Repository
 * %%
 * Copyright (C) 2005 - 2016 Alfresco Software Limited
 * %%
 * This file is part of the Alfresco software. 
 * If the software was purchased under a paid Alfresco license, the terms of 
 * the paid license agreement will prevail.  Otherwise, the software is 
 * provided under the following open source license terms:
 * 
 * Alfresco 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 3 of the License, or
 * (at your option) any later version.
 * 
 * Alfresco 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.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
package org.alfresco.util;

import java.io.File;

import org.alfresco.error.AlfrescoRuntimeException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Provides OpenOffice and LibreOffice variant information.
 * 
 * @author Alan Davis
 */
public class OpenOfficeVariant {
    private static final String[] EXTENSIONS = new String[] { "", ".exe", ".com", ".bat", ".cmd" };
    private static final Log logger = LogFactory.getLog(OpenOfficeCommandLine.class);
    private static final String OS_NAME = System.getProperty("os.name").toLowerCase();

    private final boolean windows = isWindows();

    public File getOfficeHome(File executable) {
        // Get the grandparent
        File officeHome = executable;
        for (int i = 1; officeHome != null && i <= 2; i++) {
            officeHome = officeHome.getParentFile();
        }

        if (officeHome == null && executable != null) {
            throw new AlfrescoRuntimeException(
                    "Did not find OppenOffice home from executable " + executable.getAbsolutePath());
        }

        return officeHome;
    }

    public File findExecutable(String executableName) {
        File file = new File(executableName);
        if (file.isAbsolute()) {
            file = canExecute(file);
        } else {
            file = findExecutableOnPath(executableName);
        }
        return file;
    }

    private File findExecutableOnPath(String executableName) {
        String systemPath = System.getenv("PATH");
        systemPath = systemPath == null ? System.getenv("path") : systemPath;
        String[] pathDirs = systemPath.split(File.pathSeparator);

        File fullyQualifiedExecutable = null;
        for (String pathDir : pathDirs) {
            File file = canExecute(new File(pathDir, executableName));
            if (file != null) {
                fullyQualifiedExecutable = file;
                break;
            }
        }
        return fullyQualifiedExecutable;
    }

    private File canExecute(File file) {
        File fullyQualifiedExecutable = null;
        File dir = file.getParentFile();
        String name = file.getName();
        for (String ext : EXTENSIONS) {
            file = new File(dir, name + ext);
            if (file.canExecute()) {
                fullyQualifiedExecutable = file;
                break;
            }
            if (!windows) {
                break;
            }
        }
        return fullyQualifiedExecutable;
    }

    public boolean isLibreOffice3Dot5(File officeHome) {
        if (logger.isDebugEnabled()) {
            logger.debug("System.getProperty(\"os.name\")=" + System.getProperty("os.name"));
            logger.debug("officeHome=" + (officeHome == null ? null : "'" + officeHome.getAbsolutePath() + "'"));
            logger.debug("basis-link:" + new File(officeHome, "basis-link").isFile());
            logger.debug("basis-link:" + new File(officeHome, "basis-link").isDirectory());
            logger.debug("  ure-link:" + new File(officeHome, "ure-link").isFile());
            logger.debug("  ure-link:" + new File(officeHome, "ure-link").isDirectory());
            logger.debug("    NOTICE:" + new File(officeHome, "NOTICE").isFile());
        }
        return officeHome != null && !new File(officeHome, "basis-link").isFile()
                && (new File(officeHome, "ure-link").isFile() || new File(officeHome, "ure-link").isDirectory());
    }

    public boolean isLibreOffice3Dot6(File officeHome) {
        if (logger.isDebugEnabled()) {
            logger.debug("    NOTICE:" + new File(officeHome, "NOTICE").isFile());
        }
        return isLibreOffice3Dot5(officeHome) && new File(officeHome, "NOTICE").isFile();
    }

    public boolean isLinux() {
        return OS_NAME.startsWith("linux");
    }

    public boolean isMac() {
        return OS_NAME.startsWith("mac");
    }

    public boolean isWindows() {
        return OS_NAME.startsWith("windows");
    }
}