diff options
Diffstat (limited to 'src/main/java/org/pdfbox/pdmodel/common/COSDictionaryMap.java')
| -rw-r--r-- | src/main/java/org/pdfbox/pdmodel/common/COSDictionaryMap.java | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/pdmodel/common/COSDictionaryMap.java b/src/main/java/org/pdfbox/pdmodel/common/COSDictionaryMap.java new file mode 100644 index 0000000..ca3821d --- /dev/null +++ b/src/main/java/org/pdfbox/pdmodel/common/COSDictionaryMap.java @@ -0,0 +1,278 @@ +/**
+ * Copyright (c) 2003-2004, 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 org.pdfbox.cos.COSBase;
+import org.pdfbox.cos.COSBoolean;
+import org.pdfbox.cos.COSDictionary;
+import org.pdfbox.cos.COSFloat;
+import org.pdfbox.cos.COSInteger;
+import org.pdfbox.cos.COSName;
+import org.pdfbox.cos.COSString;
+
+import java.io.IOException;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * This is a Map that will automatically sync the contents to a COSDictionary.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.9 $
+ */
+public class COSDictionaryMap implements Map
+{
+ private COSDictionary map;
+ private Map actuals;
+
+ /**
+ * Constructor for this map.
+ *
+ * @param actualsMap The map with standard java objects as values.
+ * @param dicMap The map with COSBase objects as values.
+ */
+ public COSDictionaryMap( Map actualsMap, COSDictionary dicMap )
+ {
+ actuals = actualsMap;
+ map = dicMap;
+ }
+
+
+ /**
+ * @see java.util.Map#size()
+ */
+ public int size()
+ {
+ return map.size();
+ }
+
+ /**
+ * @see java.util.Map#isEmpty()
+ */
+ public boolean isEmpty()
+ {
+ return size() == 0;
+ }
+
+ /**
+ * @see java.util.Map#containsKey()
+ */
+ public boolean containsKey(Object key)
+ {
+ return map.keyList().contains( key );
+ }
+
+ /**
+ * @see java.util.Map#containsValue()
+ */
+ public boolean containsValue(Object value)
+ {
+ return actuals.containsValue( value );
+ }
+
+ /**
+ * @see java.util.Map#get()
+ */
+ public Object get(Object key)
+ {
+ return actuals.get( key );
+ }
+
+ /**
+ * @see java.util.Map#put()
+ */
+ public Object put(Object key, Object value)
+ {
+ COSObjectable object = (COSObjectable)value;
+
+ map.setItem( COSName.getPDFName( (String)key ), object.getCOSObject() );
+ return actuals.put( key, value );
+ }
+
+ /**
+ * @see java.util.Map#remove()
+ */
+ public Object remove(Object key)
+ {
+ map.removeItem( COSName.getPDFName( (String)key ) );
+ return actuals.remove( key );
+ }
+
+ /**
+ * @see java.util.Map#putAll()
+ */
+ public void putAll(Map t)
+ {
+ throw new RuntimeException( "Not yet implemented" );
+ }
+
+ /**
+ * @see java.util.Map#clear()
+ */
+ public void clear()
+ {
+ map.clear();
+ actuals.clear();
+ }
+
+ /**
+ * @see java.util.Map#keySet()
+ */
+ public Set keySet()
+ {
+ return actuals.keySet();
+ }
+
+ /**
+ * @see java.util.Map#values()
+ */
+ public Collection values()
+ {
+ return actuals.values();
+ }
+
+ /**
+ * @see java.util.Map#entrySet()
+ */
+ public Set entrySet()
+ {
+ throw new RuntimeException( "Not yet implemented" );
+ }
+
+ /**
+ * @see java.util.Map#equals()
+ */
+ public boolean equals(Object o)
+ {
+ boolean retval = false;
+ if( o instanceof COSDictionaryMap )
+ {
+ COSDictionaryMap other = (COSDictionaryMap)o;
+ retval = other.map.equals( this.map );
+ }
+ return retval;
+ }
+
+ /**
+ * This will get a string representation of this map.
+ *
+ * @return A human readable form of this map.
+ */
+ public String toString()
+ {
+ return actuals.toString();
+ }
+
+ /**
+ * @see java.util.Map#hashCode()
+ */
+ public int hashCode()
+ {
+ return map.hashCode();
+ }
+
+ /**
+ * This will take a map<java.lang.String,org.pdfbox.pdmodel.COSObjectable>
+ * and convert it into a COSDictionary<COSName,COSBase>.
+ *
+ * @param someMap A map containing COSObjectables
+ *
+ * @return A proper COSDictionary
+ */
+ public static COSDictionary convert( Map someMap )
+ {
+ Iterator iter = someMap.keySet().iterator();
+ COSDictionary dic = new COSDictionary();
+ while( iter.hasNext() )
+ {
+ String name = (String)iter.next();
+ COSObjectable object = (COSObjectable)someMap.get( name );
+ dic.setItem( COSName.getPDFName( name ), object.getCOSObject() );
+ }
+ return dic;
+ }
+
+ /**
+ * This will take a COS dictionary and convert it into COSDictionaryMap. All cos
+ * objects will be converted to their primitive form.
+ *
+ * @param map The COS mappings.
+ * @return A standard java map.
+ * @throws IOException If there is an error during the conversion.
+ */
+ public static COSDictionaryMap convertBasicTypesToMap( COSDictionary map ) throws IOException
+ {
+ COSDictionaryMap retval = null;
+ if( map != null )
+ {
+ Map actualMap = new HashMap();
+ Iterator keyIter = map.keyList().iterator();
+ while( keyIter.hasNext() )
+ {
+ COSName key = (COSName)keyIter.next();
+ COSBase cosObj = map.getDictionaryObject( key );
+ Object actualObject = null;
+ if( cosObj instanceof COSString )
+ {
+ actualObject = ((COSString)cosObj).getString();
+ }
+ else if( cosObj instanceof COSInteger )
+ {
+ actualObject = new Integer( ((COSInteger)cosObj).intValue() );
+ }
+ else if( cosObj instanceof COSName )
+ {
+ actualObject = ((COSName)cosObj).getName();
+ }
+ else if( cosObj instanceof COSFloat )
+ {
+ actualObject = new Float( ((COSInteger)cosObj).floatValue() );
+ }
+ else if( cosObj instanceof COSBoolean )
+ {
+ actualObject = ((COSBoolean)cosObj).getValue() ? Boolean.TRUE : Boolean.FALSE;
+ }
+ else
+ {
+ throw new IOException( "Error:unknown type of object to convert:" + cosObj );
+ }
+ actualMap.put( key.getName(), actualObject );
+ }
+ retval = new COSDictionaryMap( actualMap, map );
+ }
+
+ return retval;
+ }
+}
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