Initial import of release 2.2.REL-2.2@923

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@4 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 284 insertions, 0 deletions

diff --git a/src/main/java/org/pdfbox/pdmodel/common/PDMemoryStream.java b/src/main/java/org/pdfbox/pdmodel/common/PDMemoryStream.java
new file mode 100644
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+++ b/src/main/java/org/pdfbox/pdmodel/common/PDMemoryStream.java
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+/**

+ * Copyright (c) 2005, www.pdfbox.org

+ * All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * 1. Redistributions of source code must retain the above copyright notice,

+ *    this list of conditions and the following disclaimer.

+ * 2. Redistributions in binary form must reproduce the above copyright notice,

+ *    this list of conditions and the following disclaimer in the documentation

+ *    and/or other materials provided with the distribution.

+ * 3. Neither the name of pdfbox; nor the names of its

+ *    contributors may be used to endorse or promote products derived from this

+ *    software without specific prior written permission.

+ *

+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY

+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ *

+ * http://www.pdfbox.org

+ *

+ */

+package org.pdfbox.pdmodel.common;

+

+import java.io.ByteArrayInputStream;

+import java.io.IOException;

+import java.io.InputStream;

+import java.io.OutputStream;

+

+import java.util.List;

+

+import org.pdfbox.cos.COSBase;

+import org.pdfbox.cos.COSStream;

+

+import org.pdfbox.pdmodel.common.filespecification.PDFileSpecification;

+

+/**

+ * A PDStream represents a stream in a PDF document.  Streams are tied to a single

+ * PDF document.

+ *

+ * @author Ben Litchfield (ben@csh.rit.edu)

+ * @version $Revision: 1.1 $

+ */

+public class PDMemoryStream extends PDStream

+{

+    private byte[] data;

+    

+    /**

+     * This will create a new PDStream object.

+     * 

+     * @param buffer The data for this in memory stream.

+     */

+    public PDMemoryStream( byte[] buffer )

+    {

+        data = buffer;

+    }

+    

+

+    

+    /**

+     * If there are not compression filters on the current stream then this

+     * will add a compression filter, flate compression for example.

+     */

+    public void addCompression()

+    {

+        //no compression to add

+    }

+

+

+

+    /**

+     * Convert this standard java object to a COS object.

+     *

+     * @return The cos object that matches this Java object.

+     */

+    public COSBase getCOSObject()

+    {

+        throw new UnsupportedOperationException( "not supported for memory stream" );

+    }

+    

+    /**

+     * This will get a stream that can be written to.

+     * 

+     * @return An output stream to write data to.

+     * 

+     * @throws IOException If an IO error occurs during writing.

+     */

+    public OutputStream createOutputStream() throws IOException

+    {

+        throw new UnsupportedOperationException( "not supported for memory stream" );

+    }

+    

+    /**

+     * This will get a stream that can be read from.

+     * 

+     * @return An input stream that can be read from.

+     * 

+     * @throws IOException If an IO error occurs during reading.

+     */

+    public InputStream createInputStream() throws IOException

+    {

+        return new ByteArrayInputStream( data );

+    }

+    

+    /**

+     * This will get a stream with some filters applied but not others.  This is useful

+     * when doing images, ie filters = [flate,dct], we want to remove flate but leave dct

+     * 

+     * @param stopFilters A list of filters to stop decoding at.

+     * @return A stream with decoded data.

+     * @throws IOException If there is an error processing the stream.

+     */

+    public InputStream getPartiallyFilteredStream( List stopFilters ) throws IOException

+    {

+        return createInputStream();

+    }

+    

+    /**

+     * Get the cos stream associated with this object.

+     *

+     * @return The cos object that matches this Java object.

+     */

+    public COSStream getStream()

+    {

+        throw new UnsupportedOperationException( "not supported for memory stream" );

+    }

+    

+    /**

+     * This will get the length of the filtered/compressed stream.  This is readonly in the 

+     * PD Model and will be managed by this class.

+     * 

+     * @return The length of the filtered stream.

+     */

+    public int getLength()

+    {

+        return data.length;

+    }

+    

+    /**

+     * This will get the list of filters that are associated with this stream.  Or

+     * null if there are none.

+     * @return A list of all encoding filters to apply to this stream.

+     */

+    public List getFilters()

+    {

+        return null;

+    }

+    

+    /**

+     * This will set the filters that are part of this stream.

+     * 

+     * @param filters The filters that are part of this stream.

+     */

+    public void setFilters( List filters )

+    {

+        throw new UnsupportedOperationException( "not supported for memory stream" );

+    }

+    

+    /**

+     * Get the list of decode parameters.  Each entry in the list will refer to 

+     * an entry in the filters list.

+     * 

+     * @return The list of decode parameters.

+     * 

+     * @throws IOException if there is an error retrieving the parameters.

+     */

+    public List getDecodeParams() throws IOException

+    {

+        return null;

+    }

+    

+    /**

+     * This will set the list of decode params.

+     * 

+     * @param decodeParams The list of decode params.

+     */

+    public void setDecodeParams( List decodeParams )

+    {

+        //do nothing

+    }

+    

+    /**

+     * This will get the file specification for this stream.  This is only

+     * required for external files.

+     * 

+     * @return The file specification.

+     */

+    public PDFileSpecification getFile()

+    {

+        return null;

+    }

+    

+    /**

+     * Set the file specification.

+     * @param f The file specification.

+     */

+    public void setFile( PDFileSpecification f )

+    {

+        //do nothing.

+    }

+    

+    /**

+     * This will get the list of filters that are associated with this stream.  Or

+     * null if there are none.

+     * @return A list of all encoding filters to apply to this stream.

+     */

+    public List getFileFilters()

+    {

+        return null;

+    }

+    

+    /**

+     * This will set the filters that are part of this stream.

+     * 

+     * @param filters The filters that are part of this stream.

+     */

+    public void setFileFilters( List filters )

+    {

+        //do nothing.

+    }

+    

+    /**

+     * Get the list of decode parameters.  Each entry in the list will refer to 

+     * an entry in the filters list.

+     * 

+     * @return The list of decode parameters.

+     * 

+     * @throws IOException if there is an error retrieving the parameters.

+     */

+    public List getFileDecodeParams() throws IOException

+    {

+        return null;

+    }

+    

+    /**

+     * This will set the list of decode params.

+     * 

+     * @param decodeParams The list of decode params.

+     */

+    public void setFileDecodeParams( List decodeParams )

+    {

+        //do nothing

+    }

+    

+    /**

+     * This will copy the stream into a byte array. 

+     * 

+     * @return The byte array of the filteredStream

+     * @throws IOException When getFilteredStream did not work

+     */

+    public byte[] getByteArray() throws IOException

+    {

+        return data;

+    }

+    

+    /**

+     * Get the metadata that is part of the document catalog.  This will 

+     * return null if there is no meta data for this object.

+     * 

+     * @return The metadata for this object.

+     */

+    public PDMetadata getMetadata()

+    {

+        return null;

+    }

+    

+    /**

+     * Set the metadata for this object.  This can be null.

+     * 

+     * @param meta The meta data for this object.

+     */

+    public void setMetadata( PDMetadata meta )

+    {

+        //do nothing

+    }

+}
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