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jOpenDocument is a free library for developers looking to use
Open Document files without OpenOffice.org.
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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2008-2013 jOpenDocument, by ILM Informatique. All rights reserved.
*
* The contents of this file are subject to the terms of the GNU
* General Public License Version 3 only ("GPL").
* You may not use this file except in compliance with the License.
* You can obtain a copy of the License at http://www.gnu.org/licenses/gpl-3.0.html
* See the License for the specific language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each file.
*
*/
package org.jopendocument.link;
import org.jopendocument.util.CollectionUtils;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
/**
* Connexion avec une instance d'OO
*
* @author Administrateur
*/
public abstract class OOConnexion {
// weak to let go OOInstallation instances
private static final Map loaders = new WeakHashMap(2);
// TODO use OOInstallation.getVersion()
// for now only one version (but also works with OO2)
private static final String OO_VERSION = "3";
static {
// needed to access .class inside a jar inside a jar.
org.jopendocument.util.protocol.Helper.register();
}
static private final URL[] getURLs(final OOInstallation ooInstall) {
final List res = ooInstall.getURLs(CollectionUtils.createSet("ridl.jar", "jurt.jar", "juh.jar", "unoil.jar"));
final String jarName = "OO" + OO_VERSION + "-link.jar";
final URL resource = OOConnexion.class.getResource(jarName);
if (resource == null)
// Did you run ant in the OO3Link project (or in ours) ?
throw new IllegalStateException("Missing " + jarName);
res.add(org.jopendocument.util.protocol.Helper.toJarJar(resource));
return res.toArray(new URL[res.size()]);
}
static private final ClassLoader getLoader(final OOInstallation ooInstall) {
ClassLoader res = loaders.get(ooInstall);
if (res == null) {
// pass our classloader otherwise the system class loader will be used. This won't work
// in webstart since the classpath is loaded by JNLPClassLoader, thus a class loaded by
// res couldn't refer to the classpath (e.g. this class) but only to the java library.
res = new URLClassLoader(getURLs(ooInstall), OOConnexion.class.getClassLoader());
loaders.put(ooInstall, res);
}
return res;
}
/**
* Return a connection to the default OpenOffice installation.
*
* @return a connection to the default OpenOffice or null
if none is found.
* @throws IllegalStateException if an error occurs while searching.
*/
static public OOConnexion create() throws IllegalStateException {
final OOInstallation ooInstall;
try {
ooInstall = OOInstallation.getInstance();
} catch (IOException e) {
throw new IllegalStateException("Couldn't find default OO installation", e);
}
return create(ooInstall);
}
static public OOConnexion create(final OOInstallation ooInstall) throws IllegalStateException {
if (ooInstall == null)
return null;
try {
final Class c = getLoader(ooInstall).loadClass("org.jopendocument.link" + OO_VERSION + ".OOConnexion");
return (OOConnexion) c.getConstructor(OOInstallation.class).newInstance(ooInstall);
} catch (Exception e) {
throw new IllegalStateException("Couldn't create OOCOnnexion", e);
}
}
public static void main(String[] args) throws IOException {
if (args.length == 0) {
System.out.println("Usage : " + OOConnexion.class.getName() + " officeFile");
System.out.println("Open officeFile in the default installation of LibreOffice");
System.exit(1);
}
final OOConnexion conn = OOConnexion.create();
if (conn == null)
throw new IllegalStateException("No Office found");
conn.loadDocument(new File(args[0]), false);
conn.closeConnexion();
}
protected abstract Component loadDocumentFromURLAsync(final String url, final boolean hidden);
/**
* Load a document in OpenOffice.
*
* @param f the file to load.
* @param hidden true
if no frame should be visible.
* @return the new component.
* @throws IOException if an error occurs.
*/
public final Component loadDocument(final File f, final boolean hidden) throws IOException {
if (!f.exists())
throw new FileNotFoundException(f.getAbsolutePath());
return loadDocumentFromURLAsync(convertToUrl(f.getAbsolutePath()), hidden);
}
protected abstract String convertToUrl(String path) throws MalformedURLException;
public abstract void closeConnexion();
/**
* Whether the bridge is closed.
*
* @return true
if {@link #closeConnexion()} was called or OpenOffice is now longer
* running.
*/
public abstract boolean isClosed();
}