diff options
Diffstat (limited to 'src/main/java/test/pdfbox/filter/TestFilters.java')
| -rw-r--r-- | src/main/java/test/pdfbox/filter/TestFilters.java | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/src/main/java/test/pdfbox/filter/TestFilters.java b/src/main/java/test/pdfbox/filter/TestFilters.java new file mode 100644 index 0000000..db124eb --- /dev/null +++ b/src/main/java/test/pdfbox/filter/TestFilters.java @@ -0,0 +1,182 @@ +/**
+ * 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 test.pdfbox.filter;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.File;
+import java.io.FileInputStream;
+
+import java.util.Collection;
+import java.util.Iterator;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+import org.apache.log4j.Logger;
+
+import org.pdfbox.cos.COSDictionary;
+
+import org.pdfbox.filter.DCTFilter;
+import org.pdfbox.filter.CCITTFaxDecodeFilter;
+import org.pdfbox.filter.Filter;
+import org.pdfbox.filter.FilterManager;
+import org.pdfbox.filter.RunLengthDecodeFilter;
+
+/**
+ * This will test all of the filters in the PDFBox system.
+ *
+ * @author Ben Litchfield (ben@csh.rit.edu)
+ * @version $Revision: 1.5 $
+ */
+public class TestFilters extends TestCase
+{
+ private static Logger log = Logger.getLogger(TestFilters.class);
+
+ private static final int BUFFER_SIZE = 2048;
+ private static final COSDictionary EMPTY_DICTIONARY = new COSDictionary();
+
+ /**
+ * Constructor.
+ *
+ * @param name The name of the test to run.
+ */
+ public TestFilters( String name )
+ {
+ super( name );
+ }
+
+ /**
+ * This will get the suite of test that this class holds.
+ *
+ * @return All of the tests that this class holds.
+ */
+ public static Test suite()
+ {
+ return new TestSuite( TestFilters.class );
+ }
+
+ /**
+ * This will test all of the filters in the system.
+ *
+ * @throws IOException If there is an exception while encoding.
+ */
+ public void testFilters() throws IOException
+ {
+ FilterManager manager = new FilterManager();
+ Collection filters = manager.getFilters();
+
+ Iterator filterIter = filters.iterator();
+ while( filterIter.hasNext() )
+ {
+ long start = System.currentTimeMillis();
+ Filter filter = (Filter)filterIter.next();
+ if( !(filter instanceof DCTFilter ||
+ filter instanceof CCITTFaxDecodeFilter ||
+ filter instanceof RunLengthDecodeFilter))
+ {
+ checkFilter( new File( "classes" ), filter );
+ long stop = System.currentTimeMillis();
+ System.out.println( "Time for filter " + filter.getClass().getName() + "=" + (stop-start) );
+ }
+ }
+ }
+
+ /**
+ * This will check the filter.
+ *
+ * @param file The file or directory to test.
+ * @param filter The filter to check.
+ *
+ * @throws IOException If there is an exception while encoding.
+ */
+ private void checkFilter( File file, Filter filter ) throws IOException
+ {
+ if( file.isDirectory() )
+ {
+ File[] subFiles = file.listFiles();
+ for( int i=0; i<subFiles.length; i++ )
+ {
+ checkFilter( subFiles[i], filter );
+ }
+ }
+ else
+ {
+ log.debug("Checking filter: " + filter + ", with file: " + file.getAbsolutePath());
+ ByteArrayOutputStream output = new ByteArrayOutputStream();
+
+ ByteArrayOutputStream encoded = new ByteArrayOutputStream();
+ ByteArrayOutputStream decoded = new ByteArrayOutputStream();
+ FileInputStream fin = new FileInputStream( file );
+ int amountRead = 0;
+ byte[] buffer = new byte[ BUFFER_SIZE ];
+ while( (amountRead = fin.read( buffer, 0, BUFFER_SIZE )) != -1 )
+ {
+ output.write( buffer, 0, amountRead );
+ }
+ fin.close();
+ byte[] original = output.toByteArray();
+ filter.encode( new ByteArrayInputStream( original ), encoded, EMPTY_DICTIONARY );
+ filter.decode( new ByteArrayInputStream( encoded.toByteArray() ), decoded, EMPTY_DICTIONARY );
+
+ cmpArray( original, decoded.toByteArray(), filter, file );
+ }
+ }
+
+ /**
+ * This will compare a couple of arrays and fail if they do not match.
+ *
+ * @param firstArray The first array.
+ * @param secondArray The second array.
+ * @param filter The filter that did the encoding.
+ * @param file The file that was encoded.
+ */
+ private void cmpArray( byte[] firstArray, byte[] secondArray, Filter filter, File file )
+ {
+ String fileMsg = filter.getClass().getName() + " " + file.getAbsolutePath();
+ if( firstArray.length != secondArray.length )
+ {
+ fail( "The array lengths do not match for " + fileMsg +
+ ", firstArray length was: " + firstArray.length +
+ ", secondArray length was: " + secondArray.length);
+ }
+
+ for( int i=0; i<firstArray.length; i++ )
+ {
+ if( firstArray[i] != secondArray[i] )
+ {
+ fail( "Array data does not match " + fileMsg );
+ }
+ }
+ }
+}
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