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| author | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2006-12-01 12:20:24 +0000 |
|---|---|---|
| committer | tknall <tknall@7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c> | 2006-12-01 12:20:24 +0000 |
| commit | 6025b6016517c6d898d8957d1d7e03ba71431912 (patch) | |
| tree | b15bd6fa5ffe9588a9bca3f2b8a7e358f83b6eba /src/main/java/org/pdfbox/cos/COSObject.java | |
| parent | d2c77e820ab4aba8235d71275755021347b3ad10 (diff) | |
| download | pdf-as-3-6025b6016517c6d898d8957d1d7e03ba71431912.tar.gz pdf-as-3-6025b6016517c6d898d8957d1d7e03ba71431912.tar.bz2 pdf-as-3-6025b6016517c6d898d8957d1d7e03ba71431912.zip | |
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
Diffstat (limited to 'src/main/java/org/pdfbox/cos/COSObject.java')
| -rw-r--r-- | src/main/java/org/pdfbox/cos/COSObject.java | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/cos/COSObject.java b/src/main/java/org/pdfbox/cos/COSObject.java new file mode 100644 index 0000000..28f2316 --- /dev/null +++ b/src/main/java/org/pdfbox/cos/COSObject.java @@ -0,0 +1,226 @@ +/**
+ * Copyright (c) 2003, 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.cos;
+
+import org.pdfbox.exceptions.COSVisitorException;
+
+import java.io.IOException;
+
+import org.apache.log4j.Logger;
+
+/**
+ * This class represents a PDF object.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.35 $
+ */
+public class COSObject extends COSBase
+{
+ private static Logger log = Logger.getLogger(COSObject.class);
+
+ private COSBase baseObject;
+ private COSInteger objectNumber;
+ private COSInteger generationNumber;
+
+ /**
+ * Constructor.
+ *
+ * @param object The object that this encapsulates.
+ *
+ * @throws IOException If there is an error with the object passed in.
+ */
+ public COSObject( COSBase object ) throws IOException
+ {
+ setObject( object );
+ }
+
+ /**
+ * This will get the dictionary object in this object that has the name key and
+ * if it is a pdfobjref then it will dereference that and return it.
+ *
+ * @param key The key to the value that we are searching for.
+ *
+ * @return The pdf object that matches the key.
+ */
+ public COSBase getDictionaryObject( COSName key )
+ {
+ COSBase retval =null;
+ if( baseObject instanceof COSDictionary )
+ {
+ retval = ((COSDictionary)baseObject).getDictionaryObject( key );
+ }
+ return retval;
+ }
+
+ /**
+ * This will get the dictionary object in this object that has the name key.
+ *
+ * @param key The key to the value that we are searching for.
+ *
+ * @return The pdf object that matches the key.
+ */
+ public COSBase getItem( COSName key )
+ {
+ COSBase retval =null;
+ if( baseObject instanceof COSDictionary )
+ {
+ retval = ((COSDictionary)baseObject).getItem( key );
+ }
+ return retval;
+ }
+
+ /**
+ * This will get the object that this object encapsulates.
+ *
+ * @return The encapsulated object.
+ */
+ public COSBase getObject()
+ {
+ return baseObject;
+ }
+
+ /**
+ * This will set the object that this object encapsulates.
+ *
+ * @param object The new object to encapsulate.
+ *
+ * @throws IOException If there is an error setting the updated object.
+ */
+ public void setObject( COSBase object ) throws IOException
+ {
+ baseObject = object;
+ /*if( baseObject == null )
+ {
+ baseObject = object;
+ }
+ else
+ {
+ //This is for when an object appears twice in the
+ //pdf file we really want to replace it such that
+ //object references still work correctly.
+ //see owcp-as-received.pdf for an example
+ if( baseObject instanceof COSDictionary )
+ {
+ COSDictionary dic = (COSDictionary)baseObject;
+ COSDictionary dicObject = (COSDictionary)object;
+ dic.clear();
+ dic.addAll( dicObject );
+ }
+ else if( baseObject instanceof COSArray )
+ {
+ COSArray array = (COSArray)baseObject;
+ COSArray arrObject = (COSArray)object;
+ array.clear();
+ for( int i=0; i<arrObject.size(); i++ )
+ {
+ array.add( arrObject.get( i ) );
+ }
+ }
+ else if( baseObject instanceof COSStream )
+ {
+ COSStream oldStream = (COSStream)baseObject;
+ System.out.println( "object:" + object.getClass().getName() );
+ COSStream newStream = (COSStream)object;
+ oldStream.replaceWithStream( newStream );
+ }
+ else if( baseObject instanceof COSInteger )
+ {
+ COSInteger oldInt = (COSInteger)baseObject;
+ COSInteger newInt = (COSInteger)object;
+ oldInt.setValue( newInt.longValue() );
+ }
+ else if( baseObject == null )
+ {
+ baseObject = object;
+ }
+ else
+ {
+ throw new IOException( "Unknown object substitution type:" + baseObject );
+ }
+ }*/
+
+ }
+
+ /**
+ * @see Object#toString()
+ */
+ public String toString()
+ {
+ return "COSObject{" +
+ (objectNumber == null ? "unknown" : "" + objectNumber.intValue() ) + ", " +
+ (generationNumber == null ? "unknown" : "" + generationNumber.intValue() ) +
+ "}";
+ }
+
+ /** Getter for property objectNumber.
+ * @return Value of property objectNumber.
+ */
+ public COSInteger getObjectNumber()
+ {
+ return objectNumber;
+ }
+
+ /** Setter for property objectNumber.
+ * @param objectNum New value of property objectNumber.
+ */
+ public void setObjectNumber(COSInteger objectNum)
+ {
+ objectNumber = objectNum;
+ }
+
+ /** Getter for property generationNumber.
+ * @return Value of property generationNumber.
+ */
+ public COSInteger getGenerationNumber()
+ {
+ return generationNumber;
+ }
+
+ /** Setter for property generationNumber.
+ * @param generationNumberValue New value of property generationNumber.
+ */
+ public void setGenerationNumber(COSInteger generationNumberValue)
+ {
+ generationNumber = generationNumberValue;
+ }
+
+ /**
+ * visitor pattern double dispatch method.
+ *
+ * @param visitor The object to notify when visiting this object.
+ * @return any object, depending on the visitor implementation, or null
+ * @throws COSVisitorException If an error occurs while visiting this object.
+ */
+ public Object accept( ICOSVisitor visitor ) throws COSVisitorException
+ {
+ return getObject() != null ? getObject().accept( visitor ) : COSNull.NULL.accept( visitor );
+ }
+}
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