102 lines
3.7 KiB
Java
102 lines
3.7 KiB
Java
/*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership.
|
|
* The ASF licenses this file to You under the Apache License, Version 2.0
|
|
* (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/* $Id: DSCProcessingExample1.java 750418 2009-03-05 11:03:54Z vhennebert $ */
|
|
|
|
package ps;
|
|
|
|
import java.io.File;
|
|
import java.io.IOException;
|
|
import java.io.OutputStream;
|
|
import java.io.InputStream;
|
|
|
|
import org.apache.commons.io.IOUtils;
|
|
import org.apache.xmlgraphics.ps.dsc.DSCException;
|
|
import org.apache.xmlgraphics.ps.dsc.tools.PageExtractor;
|
|
|
|
/**
|
|
* Demonstrates how the DSC parser can be used to extract a series of pages from a DSC-compliant
|
|
* PostScript file. For details how this works, please look into the PageExtractor class
|
|
* where the actual functionality is located. This sample class only calls the code there.
|
|
*/
|
|
public class DSCProcessingExample1 {
|
|
|
|
/**
|
|
* Extracts a series of pages from a DSC-compliant PostScript file.
|
|
* @param srcFile the source PostScript file
|
|
* @param tgtFile the target file to write the extracted pages to
|
|
* @param from the starting page number
|
|
* @param to the ending page number
|
|
* @throws IOException In case of an I/O error
|
|
*/
|
|
public void extractPages(File srcFile, File tgtFile, int from, int to) throws IOException {
|
|
InputStream in = new java.io.FileInputStream(srcFile);
|
|
in = new java.io.BufferedInputStream(in);
|
|
try {
|
|
OutputStream out = new java.io.FileOutputStream(tgtFile);
|
|
out = new java.io.BufferedOutputStream(out);
|
|
try {
|
|
PageExtractor.extractPages(in, out, from, to);
|
|
} catch (DSCException e) {
|
|
throw new RuntimeException(e.getMessage());
|
|
} finally {
|
|
IOUtils.closeQuietly(out);
|
|
}
|
|
} finally {
|
|
IOUtils.closeQuietly(in);
|
|
}
|
|
}
|
|
|
|
private static void showInfo() {
|
|
System.out.println(
|
|
"Call: DSCProcessingExample1 <source-file> <target-file> <from-page> <to-page>");
|
|
}
|
|
|
|
/**
|
|
* Command-line interface
|
|
* @param args command-line arguments
|
|
*/
|
|
public static void main(String[] args) {
|
|
try {
|
|
File srcFile , tgtFile;
|
|
int from, to;
|
|
if (args.length >= 4) {
|
|
srcFile = new File(args[0]);
|
|
tgtFile = new File(args[1]);
|
|
from = Integer.parseInt(args[2]);
|
|
to = Integer.parseInt(args[3]);
|
|
} else {
|
|
throw new IllegalArgumentException("Invalid number of parameters!");
|
|
}
|
|
if (!srcFile.exists()) {
|
|
throw new IllegalArgumentException("Source file not found: " + srcFile);
|
|
}
|
|
DSCProcessingExample1 app = new DSCProcessingExample1();
|
|
app.extractPages(srcFile, tgtFile, from, to);
|
|
System.out.println("File written: " + tgtFile.getCanonicalPath());
|
|
} catch (IllegalArgumentException iae) {
|
|
System.err.println(iae.getMessage());
|
|
showInfo();
|
|
System.exit(1);
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
System.exit(-1);
|
|
}
|
|
}
|
|
|
|
}
|