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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 org.libreoffice.report;
import com.sun.star.beans.PropertyVetoException;
import com.sun.star.beans.UnknownPropertyException;
import com.sun.star.beans.XPropertySet;
import com.sun.star.container.NoSuchElementException;
import com.sun.star.embed.ElementModes;
import com.sun.star.embed.InvalidStorageException;
import com.sun.star.embed.XStorage;
import com.sun.star.embed.XTransactedObject;
import com.sun.star.io.XStream;
import com.sun.star.lang.IllegalArgumentException;
import com.sun.star.lang.WrappedTargetException;
import com.sun.star.lib.uno.adapter.XInputStreamToInputStreamAdapter;
import com.sun.star.lib.uno.adapter.XOutputStreamToOutputStreamAdapter;
import com.sun.star.uno.UnoRuntime;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* A directory holds all the contents here.
*
*
*/
public class StorageRepository implements InputRepository, OutputRepository
{
private static final Log LOGGER = LogFactory.getLog(StorageRepository.class);
private static final String REPORT_PROCESSING_FAILED = "ReportProcessing failed";
private XStorage input;
private XStorage output;
private final String rootURL;
public StorageRepository(final XStorage input, final XStorage output, final String rootURL)
{
this.input = input;
this.output = output;
this.rootURL = rootURL;
}
private StorageRepository(final XStorage storage, final boolean isOutput, final String rootURL)
{
this.rootURL = rootURL;
if (isOutput)
{
this.output = storage;
}
else
{
this.input = storage;
}
}
public InputStream createInputStream(final String name) throws IOException
{
if (input == null)
{
throw new IOException("input is NULL");
}
try
{
final XStream xStream = UnoRuntime.queryInterface(XStream.class, input.openStreamElement(name, ElementModes.READ));
return new BufferedInputStream(new XInputStreamToInputStreamAdapter(xStream.getInputStream()), 102400);
}
catch (com.sun.star.uno.Exception ex1)
{
java.io.IOException ex2 = new java.io.IOException();
ex2.initCause(ex1);
throw ex2;
}
}
/**
* Creates an output stream for writing the data. If there is an entry with
* that name already contained in the repository, try to overwrite it.
*
* @throws IOException if opening the stream fails
*/
public OutputStream createOutputStream(final String name, final String mimeType) throws IOException
{
if (output == null)
{
throw new IOException("output is NULL");
}
try
{
final XStream stream = output.openStreamElement(name, ElementModes.WRITE | ElementModes.TRUNCATE);
stream.getInputStream().closeInput();
if (mimeType != null)
{
final XPropertySet prop = UnoRuntime.queryInterface(XPropertySet.class, stream);
prop.setPropertyValue("MediaType", mimeType);
}
return new BufferedOutputStream(new XOutputStreamToOutputStreamAdapter(stream.getOutputStream()), 204800);
}
catch (com.sun.star.uno.Exception ex1)
{
java.io.IOException ex2 = new java.io.IOException();
ex2.initCause(ex1);
throw ex2;
}
}
public boolean exists(final String name)
{
try
{
return output.isStreamElement(name);
}
catch (InvalidStorageException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (com.sun.star.lang.IllegalArgumentException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (NoSuchElementException e)
{
// We expect this exception, no need to log it.
}
return false;
}
public Object getId()
{
return "1";
}
public long getVersion(final String name)
{
return 1;
}
public boolean isReadable(final String name)
{
try
{
if (input != null)
{
return input.isStreamElement(name);
}
}
catch (InvalidStorageException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (com.sun.star.lang.IllegalArgumentException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (NoSuchElementException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
return false;
}
public InputRepository openInputRepository(final String name) throws IOException
{
try
{
final String temp = shortenName(name);
if (!input.isStorageElement(temp))
{
throw new IOException();
}
final XStorage storage = UnoRuntime.queryInterface(XStorage.class, input.openStorageElement(temp, ElementModes.READ));
return new StorageRepository(storage, false, rootURL);
}
catch (NoSuchElementException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (WrappedTargetException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (InvalidStorageException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (IllegalArgumentException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (com.sun.star.io.IOException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
throw new IOException();
}
private final String shortenName(final String name)
{
final String temp;
if (name.startsWith("./"))
{
temp = name.substring(2);
}
else
{
temp = name;
}
return temp;
}
public OutputRepository openOutputRepository(final String name, final String mimeType) throws IOException
{
try
{
final String temp = shortenName(name);
final XStorage storage = UnoRuntime.queryInterface(XStorage.class, output.openStorageElement(temp, ElementModes.WRITE));
if (mimeType != null)
{
final XPropertySet prop = UnoRuntime.queryInterface(XPropertySet.class, storage);
prop.setPropertyValue("MediaType", mimeType);
}
return new StorageRepository(storage, true, rootURL);
}
catch (UnknownPropertyException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (PropertyVetoException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (IllegalArgumentException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (WrappedTargetException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (InvalidStorageException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (com.sun.star.io.IOException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
throw new IOException();
}
public void closeInputRepository()
{
if (input != null)
{
input.dispose();
}
}
public void closeOutputRepository()
{
if (output != null)
{
try
{
final XTransactedObject obj = UnoRuntime.queryInterface(XTransactedObject.class, output);
if (obj != null)
{
obj.commit();
}
}
catch (com.sun.star.io.IOException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (WrappedTargetException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
output.dispose();
}
}
public boolean existsStorage(final String name)
{
try
{
return output.isStorageElement(name);
}
catch (InvalidStorageException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (com.sun.star.lang.IllegalArgumentException ex)
{
LOGGER.error(REPORT_PROCESSING_FAILED, ex);
}
catch (NoSuchElementException ex)
{
// We expect this exception, no need to log it.
}
return false;
}
public String getRootURL()
{
return rootURL;
}
}
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