diff options
Diffstat (limited to 'src/main/java/org/pdfbox/pfb/PfbParser.java')
| -rw-r--r-- | src/main/java/org/pdfbox/pfb/PfbParser.java | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/src/main/java/org/pdfbox/pfb/PfbParser.java b/src/main/java/org/pdfbox/pfb/PfbParser.java new file mode 100644 index 0000000..ab069d6 --- /dev/null +++ b/src/main/java/org/pdfbox/pfb/PfbParser.java @@ -0,0 +1,211 @@ +/**
+ * Copyright (c) 2004-2005, 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.pfb;
+
+import java.io.BufferedInputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.EOFException;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * Parser for a pfb-file.
+ *
+ * @author <a href="mailto:m.g.n@gmx.de">Michael Niedermair</a>
+ * @version $Revision: 1.3 $
+ */
+public class PfbParser
+{
+ /**
+ * the pdf header length.
+ * (start-marker (1 byte), ascii-/binary-marker (1 byte), size (4 byte))
+ * 3*6 == 18
+ */
+ private static final int PFB_HEADER_LENGTH = 18;
+
+ /**
+ * the start marker.
+ */
+ private static final int START_MARKER = 0x80;
+
+ /**
+ * the ascii marker.
+ */
+ private static final int ASCII_MARKER = 0x01;
+
+ /**
+ * the binary marker.
+ */
+ private static final int BINARY_MARKER = 0x02;
+
+ /**
+ * The record types in the pfb-file.
+ */
+ private static final int[] PFB_RECORDS = {ASCII_MARKER, BINARY_MARKER,
+ ASCII_MARKER};
+
+ /**
+ * buffersize.
+ */
+ private static final int BUFFER_SIZE = 0xffff;
+
+ /**
+ * the parsed pfb-data.
+ */
+ private byte[] pfbdata;
+
+ /**
+ * the lengths of the records.
+ */
+ private int[] lengths;
+
+ // sample (pfb-file)
+ // 00000000 80 01 8b 15 00 00 25 21 50 53 2d 41 64 6f 62 65
+ // ......%!PS-Adobe
+
+
+ /**
+ * Create a new object.
+ * @param filename the file name
+ * @throws IOException if an IO-error occurs.
+ */
+ public PfbParser(final String filename) throws IOException
+ {
+ this( new BufferedInputStream(new FileInputStream(filename),BUFFER_SIZE) );
+ }
+
+ /**
+ * Create a new object.
+ * @param in The input.
+ * @throws IOException if an IO-error occurs.
+ */
+ public PfbParser(final InputStream in) throws IOException
+ {
+ byte[] pfb = readPfbInput(in);
+ parsePfb(pfb);
+ }
+
+ /**
+ * Parse the pfb-array.
+ * @param pfb The pfb-Array
+ * @throws IOException in an IO-error occurs.
+ */
+ private void parsePfb(final byte[] pfb) throws IOException
+ {
+
+ ByteArrayInputStream in = new ByteArrayInputStream(pfb);
+ pfbdata = new byte[pfb.length - PFB_HEADER_LENGTH];
+ lengths = new int[PFB_RECORDS.length];
+ int pointer = 0;
+ for (int records = 0; records < PFB_RECORDS.length; records++)
+ {
+ if (in.read() != START_MARKER)
+ {
+ throw new IOException("Start marker missing");
+ }
+
+ if (in.read() != PFB_RECORDS[records])
+ {
+ throw new IOException("Incorrect record type");
+ }
+
+ int size = in.read();
+ size += in.read() << 8;
+ size += in.read() << 16;
+ size += in.read() << 24;
+ lengths[records] = size;
+ int got = in.read(pfbdata, pointer, size);
+ if (got < 0)
+ {
+ throw new EOFException();
+ }
+ pointer += got;
+ }
+ }
+
+ /**
+ * Read the pdf input.
+ * @param in The input.
+ * @return Returns the pdf-array.
+ * @throws IOException if an IO-error occurs.
+ */
+ private byte[] readPfbInput(final InputStream in) throws IOException
+ {
+ // copy into an array
+ ByteArrayOutputStream out = new ByteArrayOutputStream();
+ byte[] tmpbuf = new byte[BUFFER_SIZE];
+ int amountRead = -1;
+ while ((amountRead = in.read(tmpbuf)) != -1)
+ {
+ out.write(tmpbuf, 0, amountRead);
+ }
+ return out.toByteArray();
+ }
+
+ /**
+ * Returns the lengths.
+ * @return Returns the lengths.
+ */
+ public int[] getLengths()
+ {
+ return lengths;
+ }
+
+ /**
+ * Returns the pfbdata.
+ * @return Returns the pfbdata.
+ */
+ public byte[] getPfbdata()
+ {
+ return pfbdata;
+ }
+
+ /**
+ * Returns the pfb data as stream.
+ * @return Returns the pfb data as stream.
+ */
+ public InputStream getInputStream()
+ {
+ return new ByteArrayInputStream(pfbdata);
+ }
+
+ /**
+ * Returns the size of the pfb-data.
+ * @return Returns the size of the pfb-data.
+ */
+ public int size()
+ {
+ return pfbdata.length;
+ }
+}
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