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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
package com.sun.star.script.framework.container;
import java.io.File;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.io.ByteArrayInputStream;
import java.util.ArrayList;
// import javax.xml.parsers.DocumentBuilderFactory;
// import javax.xml.parsers.DocumentBuilder;
// import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.*;
public class DeployedUnoPackagesDB {
// File name to be used for parcel descriptor files
private static final String
PARCEL_DESCRIPTOR_NAME = "unopkg-desc.xml";
// This is the default contents of a parcel descriptor to be used when
// creating empty descriptors
private static final byte[] EMPTY_DOCUMENT =
("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<unopackages xmlns:unopackages=\"unopackages.dtd\">\n" +
"</unopackages>").getBytes();
private File file = null;
private Document document = null;
public DeployedUnoPackagesDB() throws IOException {
ByteArrayInputStream bis = null;
try {
bis = new ByteArrayInputStream(EMPTY_DOCUMENT);
this.document = XMLParserFactory.getParser().parse(bis);
}
finally {
if (bis != null)
bis.close();
}
}
public DeployedUnoPackagesDB(Document document) {
this.document = document;
}
public DeployedUnoPackagesDB(InputStream is) throws IOException {
this(XMLParserFactory.getParser().parse(is));
}
public String[] getDeployedPackages( String language )
{
ArrayList<String> packageUrls = new ArrayList<String>(4);
Element main = document.getDocumentElement();
Element root = null;
Element item;
int len = 0;
NodeList langNodes = null;
if ((langNodes = main.getElementsByTagName("language")) != null &&
(len = langNodes.getLength()) != 0)
{
for ( int i=0; i<len; i++ )
{
Element e = (Element)langNodes.item( i );
if ( e.getAttribute("value").equals(language) )
{
root = e;
break;
}
}
}
if ( root != null )
{
len = 0;
NodeList packages = null;
if ((packages = root.getElementsByTagName("package")) != null &&
(len = packages.getLength()) != 0)
{
for ( int i=0; i<len; i++ )
{
Element e = (Element)packages.item( i );
packageUrls.add( e.getAttribute("value") );
}
}
}
if ( !packageUrls.isEmpty() )
{
return packageUrls.toArray( new String[packageUrls.size()] );
}
return new String[0];
}
public void write(OutputStream out) throws IOException {
XMLParserFactory.getParser().write(document, out);
}
public Document getDocument() {
return document;
}
private void clearEntries() {
NodeList langNodes;
Element main = document.getDocumentElement();
int len;
if ((langNodes = document.getElementsByTagName("language")) != null &&
(len = langNodes.getLength()) != 0)
{
for (int i = len - 1; i >= 0; i--) {
try {
main.removeChild(langNodes.item(i));
}
catch (DOMException de) {
// ignore
}
}
}
}
public boolean removePackage( String language, String url )
{
Element main = document.getDocumentElement();
Element langNode = null;
int len = 0;
NodeList langNodes = null;
boolean result = false;
if ((langNodes = main.getElementsByTagName("language")) != null &&
(len = langNodes.getLength()) != 0)
{
for ( int i=0; i<len; i++ )
{
Element e = (Element)langNodes.item( i );
if ( e.getAttribute("value").equals(language) )
{
langNode = e;
break;
}
}
}
if ( langNode != null )
{
len = 0;
NodeList packages = null;
if ((packages = langNode.getElementsByTagName("package")) != null &&
(len = packages.getLength()) != 0)
{
for ( int i=0; i<len; i++ )
{
Element e = (Element)packages.item( i );
String value = e.getAttribute("value");
if ( value.equals(url) )
{
langNode.removeChild( e );
result = true;
break;
}
}
}
}
return result;
}
public void addPackage(String language, String url ) {
Element main = document.getDocumentElement();
Element langNode = null;
Element pkgNode = null;
int len = 0;
NodeList langNodes = null;
if ((langNodes = document.getElementsByTagName("language")) != null &&
(len = langNodes.getLength()) != 0)
{
for ( int i=0; i<len; i++ )
{
Element e = (Element)langNodes.item( i );
if ( e.getAttribute("value").equals(language) )
{
langNode = e;
break;
}
}
}
if ( langNode == null )
{
langNode = document.createElement("language");
langNode.setAttribute( "value", language );
}
pkgNode = document.createElement("package");
pkgNode.setAttribute( "value", url );
langNode.appendChild(pkgNode);
//add to the Top Element
main.appendChild(langNode);
}
}
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