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Apache Ant Source Code Files
Apache Ant Source Code Files are inside the Apache Ant source package file like apache-ant-1.10.10-src.zip. Unzip the source package file and go to the "src/main" sub-directory, you will see source code files.
Here is the list of Java source code files of the Apache Ant 1.10.10 in \Users\fyicenter\apache-ant-1.10.10\src\main:
✍: FYIcenter.com
⏎ org/apache/tools/ant/taskdefs/optional/jlink/jlink.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 * * https://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. * */ /** * jlink.java links together multiple .jar files Original code by Patrick * Beard. Modifications to work with ANT by Matthew Kuperus Heun. * */ package org.apache.tools.ant.taskdefs.optional.jlink; import java.io.BufferedInputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.nio.file.Files; import java.nio.file.Paths; import java.util.Enumeration; import java.util.List; import java.util.Vector; import java.util.zip.CRC32; import java.util.zip.Deflater; import java.util.zip.ZipEntry; import java.util.zip.ZipException; import java.util.zip.ZipFile; import java.util.zip.ZipOutputStream; // CheckStyle:TypeNameCheck OFF - bc /** * jlink links together multiple .jar files. */ public class jlink { private static final int BUFFER_SIZE = 8192; private static final int VECTOR_INIT_SIZE = 10; private String outfile = null; private List<String> mergefiles = new Vector<>(VECTOR_INIT_SIZE); private List<String> addfiles = new Vector<>(VECTOR_INIT_SIZE); private boolean compression = false; // CheckStyle:VisibilityModifier OFF - bc byte[] buffer = new byte[BUFFER_SIZE]; // CheckStyle:VisibilityModifier OFF - bc /** The file that will be created by this instance of jlink. * @param outfile the file to create. */ public void setOutfile(String outfile) { if (outfile == null) { return; } this.outfile = outfile; } /** * Adds a file to be merged into the output. * @param fileToMerge the file to merge into the output. */ public void addMergeFile(String fileToMerge) { if (fileToMerge == null) { return; } mergefiles.add(fileToMerge); } /** Adds a file to be added into the output. * @param fileToAdd the file to add to the output. */ public void addAddFile(String fileToAdd) { if (fileToAdd == null) { return; } addfiles.add(fileToAdd); } /** * Adds several files to be merged into the output. * @param filesToMerge an array of files to merge into the output. */ public void addMergeFiles(String... filesToMerge) { if (filesToMerge == null) { return; } for (String element : filesToMerge) { addMergeFile(element); } } /** * Adds several files to be added into the output. * @param filesToAdd an array of files to add to the output. */ public void addAddFiles(String... filesToAdd) { if (filesToAdd == null) { return; } for (String element : filesToAdd) { addAddFile(element); } } /** * Determines whether output will be compressed. * @param compress if true use compression. */ public void setCompression(boolean compress) { this.compression = compress; } /** * Performs the linking of files. Addfiles are added to the output as-is. * For example, a jar file is added to the output as a jar file. However, * mergefiles are first examined for their type. If it is a jar or zip * file, the contents will be extracted from the mergefile and entered * into the output. If a zip or jar file is encountered in a subdirectory * it will be added, not merged. If a directory is encountered, it becomes * the root entry of all the files below it. Thus, you can provide * multiple, disjoint directories, as addfiles: they will all be added in * a rational manner to outfile. * @throws Exception on error. */ public void link() throws Exception { //NOSONAR try (ZipOutputStream output = new ZipOutputStream(Files.newOutputStream(Paths.get(outfile)))) { if (compression) { output.setMethod(ZipOutputStream.DEFLATED); output.setLevel(Deflater.DEFAULT_COMPRESSION); } else { output.setMethod(ZipOutputStream.STORED); } for (String path : mergefiles) { File f = new File(path); if (f.getName().endsWith(".jar") || f.getName().endsWith(".zip")) { //Do the merge mergeZipJarContents(output, f); } else { //Add this file to the addfiles Vector and add it //later at the top level of the output file. addAddFile(path); } } for (String name : addfiles) { File f = new File(name); if (f.isDirectory()) { addDirContents(output, f, f.getName() + '/', compression); } else { addFile(output, f, "", compression); } } } } /** * The command line entry point for jlink. * @param args an array of arguments */ public static void main(String[] args) { // jlink output input1 ... inputN if (args.length < 2) { System.out.println("usage: jlink output input1 ... inputN"); System.exit(1); } jlink linker = new jlink(); linker.setOutfile(args[0]); // To maintain compatibility with the command-line version, // we will only add files to be merged. for (int i = 1; i < args.length; i++) { linker.addMergeFile(args[i]); } try { linker.link(); } catch (Exception ex) { System.err.print(ex.getMessage()); } } /* * Actually performs the merging of f into the output. * f should be a zip or jar file. */ private void mergeZipJarContents(ZipOutputStream output, File f) throws IOException { //Check to see that the file with name "name" exists. if (!f.exists()) { return; } try (ZipFile zipf = new ZipFile(f)) { Enumeration<? extends ZipEntry> entries = zipf.entries(); while (entries.hasMoreElements()) { ZipEntry inputEntry = entries.nextElement(); //Ignore manifest entries. They're bound to cause conflicts between //files that are being merged. User should supply their own //manifest file when doing the merge. String inputEntryName = inputEntry.getName(); int index = inputEntryName.indexOf("META-INF"); if (index < 0) { //META-INF not found in the name of the entry. Go ahead and process it. try { output.putNextEntry(processEntry(zipf, inputEntry)); } catch (ZipException ex) { //If we get here, it could be because we are trying to put a //directory entry that already exists. //For example, we're trying to write "com", but a previous //entry from another mergefile was called "com". //In that case, just ignore the error and go on to the //next entry. if (ex.getMessage().contains("duplicate")) { //It was the duplicate entry. continue; } // I hate to admit it, but we don't know what happened // here. Throw the Exception. throw ex; } try (InputStream in = zipf.getInputStream(inputEntry)) { int len = buffer.length; int count = -1; while ((count = in.read(buffer, 0, len)) > 0) { output.write(buffer, 0, count); } output.closeEntry(); } } } } } /* * Adds contents of a directory to the output. */ private void addDirContents(ZipOutputStream output, File dir, String prefix, boolean compress) throws IOException { for (String name : dir.list()) { File file = new File(dir, name); if (file.isDirectory()) { addDirContents(output, file, prefix + name + '/', compress); } else { addFile(output, file, prefix, compress); } } } /* * Gets the name of an entry in the file. This is the real name * which for a class is the name of the package with the class * name appended. */ private String getEntryName(File file, String prefix) { String name = file.getName(); if (!name.endsWith(".class")) { // see if the file is in fact a .class file, and determine its actual name. try (InputStream input = Files.newInputStream(file.toPath())) { String className = ClassNameReader.getClassName(input); if (className != null) { return className.replace('.', '/') + ".class"; } } catch (IOException ioe) { //do nothing } } System.out.printf( "From %1$s and prefix %2$s, creating entry %2$s%3$s%n", file.getPath(), prefix, name); return prefix + name; } /* * Adds a file to the output stream. */ private void addFile(ZipOutputStream output, File file, String prefix, boolean compress) throws IOException { //Make sure file exists if (!file.exists()) { return; } ZipEntry entry = new ZipEntry(getEntryName(file, prefix)); entry.setTime(file.lastModified()); entry.setSize(file.length()); if (!compress) { entry.setCrc(calcChecksum(file)); } addToOutputStream(output, Files.newInputStream(file.toPath()), entry); } /* * A convenience method that several other methods might call. */ private void addToOutputStream(ZipOutputStream output, InputStream input, ZipEntry ze) throws IOException { try { output.putNextEntry(ze); } catch (ZipException zipEx) { //This entry already exists. So, go with the first one. input.close(); return; } int numBytes; while ((numBytes = input.read(buffer)) > 0) { output.write(buffer, 0, numBytes); } output.closeEntry(); input.close(); } /* * A method that does the work on a given entry in a mergefile. * The big deal is to set the right parameters in the ZipEntry * on the output stream. */ private ZipEntry processEntry(ZipFile zip, ZipEntry inputEntry) { /* First, some notes. On MRJ 2.2.2, getting the size, compressed size, and CRC32 from the ZipInputStream does not work for compressed (deflated) files. Those calls return -1. For uncompressed (stored) files, those calls do work. However, using ZipFile.getEntries() works for both compressed and uncompressed files. Now, from some simple testing I did, it seems that the value of CRC-32 is independent of the compression setting. So, it should be easy to pass this information on to the output entry. */ String name = inputEntry.getName(); if (!inputEntry.isDirectory() && !name.endsWith(".class")) { try (InputStream input = zip.getInputStream(zip.getEntry(name))) { String className = ClassNameReader.getClassName(input); if (className != null) { name = className.replace('.', '/') + ".class"; } } catch (IOException ioe) { //do nothing } } ZipEntry outputEntry = new ZipEntry(name); outputEntry.setTime(inputEntry.getTime()); outputEntry.setExtra(inputEntry.getExtra()); outputEntry.setComment(inputEntry.getComment()); outputEntry.setTime(inputEntry.getTime()); if (compression) { outputEntry.setMethod(ZipEntry.DEFLATED); //Note, don't need to specify size or crc for compressed files. } else { outputEntry.setMethod(ZipEntry.STORED); outputEntry.setCrc(inputEntry.getCrc()); outputEntry.setSize(inputEntry.getSize()); } return outputEntry; } /* * Necessary in the case where you add a entry that * is not compressed. */ private long calcChecksum(File f) throws IOException { return calcChecksum( new BufferedInputStream(Files.newInputStream(f.toPath()))); } /* * Necessary in the case where you add a entry that * is not compressed. */ private long calcChecksum(InputStream in) throws IOException { CRC32 crc = new CRC32(); int len = buffer.length; int count; while ((count = in.read(buffer, 0, len)) > 0) { crc.update(buffer, 0, count); } in.close(); return crc.getValue(); } }
⏎ org/apache/tools/ant/taskdefs/optional/jlink/jlink.java
Or download all of them as a single archive file:
File name: apache-ant-1.10.10-fyi.zip File size: 2392938 bytes Release date: 2021-04-17 Download
⇐ Download Apache Ant Source Package
2021-07-10, 110324👍, 0💬
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