---
title: AntのTaskを自作
author: aterai
pubdate: 2003-09-25
description: AntのTaskを自作し、これを利用する方法をテストします。
---
#contents
* 概要 [#summary]
`Ant`の`Task`を自作し、これを利用する方法をテストします。
* サンプルコード [#sourcecode]
#code{{
import java.io.*;
import java.util.*;
import org.apache.tools.ant.*;
public class MoveImportDirTask extends Task {
private File m_sourceDirectory;
private File m_destinationDirectory;
public MoveImportDirTask() {}
public void setSrc(File sourceDir) {
m_sourceDirectory = sourceDir;
}
public void setDest(File destinationDirectory) {
m_destinationDirectory = destinationDirectory;
}
private void recursive(File dir, final Vector list) {
String[] contents = dir.list();
for (int i = 0; i < contents.length; i++) {
File sdir = new File(dir, contents[i]);
if (sdir.isDirectory()) {
recursive(sdir, list);
} else {
if (sdir.getName().endsWith(".java")) list.add(sdir);
}
}
}
public void execute() throws BuildException {
if (m_sourceDirectory == null || !m_sourceDirectory.exists()) {
throw new BuildException("Source directory not found (src attribute): " + m_sourceDirectory);
String msg = "Source directory not found (src attribute): " + m_sourceDirectory;
throw new BuildException(msg);
}
if (m_destinationDirectory == null) {
throw new BuildException("Destination directory not set (dest attribute)");
}
m_destinationDirectory.mkdirs();
int directoriesCreated = 0;
int filesCopied = 0;
try {
Vector list = new Vector();
recursive(m_sourceDirectory, list);
Enumeration entries = list.elements();
// Look at all the entries in the JAR
while (entries.hasMoreElements()) {
File srcFile = (File)entries.nextElement();
String packageName = null;
BufferedReader in = new BufferedReader(new FileReader(srcFile));
while (in.ready()) {
String s = in.readLine().trim();
if (s.startsWith("package")) {
packageName = s.substring(7, s.lastIndexOf(";")).trim();
break;
}
}
in.close();
if (packageName == null || packageName.length() <= 0) continue;
String dirName = packageName.replaceAll("\\.", "/");
File newDirectory = new File(m_destinationDirectory, dirName);
//log(newDirectory.getAbsolutePath());
if (!newDirectory.exists() && newDirectory.getCanonicalPath() != null) {
newDirectory.mkdirs();
directoriesCreated++;
}
String javaFileName = dirName + File.separator + srcFile.getName();
if (srcFile.exists()) {
// If we can find the .java file, copy it
File destFile = new File(m_destinationDirectory, javaFileName);
FileInputStream fis = new FileInputStream(srcFile);
FileOutputStream fos = new FileOutputStream(destFile);
byte[] buffer = new byte[1024];
int i = 0;
while ((i = fis.read(buffer)) != -1) {
fos.write(buffer, 0, i);
}
fis.close();
fos.close();
filesCopied++;
}
}
} catch (IOException e) {
throw new BuildException("Problem loading JAR file - " + e.getMessage());
}
log(directoriesCreated + " directories created, " + filesCopied + " files copied");
}
}
}}
- [[アーカイブのダウンロード>https://ateraimemo.com/data/ant/importdir.zip]]
* 解説 [#explanation]
上記のサンプルは、`java`ファイルを`import`に対応するディレクトリに移動するプラグインです。何処かで(失念)拾ってきたサンプルを改造して作ったものです。マニュアルの[https://ant.apache.org/manual/develop.html Developing with Ant(Writing Your Own Task)]なども参考にしてください。
生成された`jar`ファイルを`%ANT_HOME%\lib`に置き、以下の要領でタスクを定義します。
#code{{
<target name="move-import">
<taskdef name="MoveImportDir"
classname="jp.co.ant.misc.MoveImportDirTask"
classpath="importdir.jar" />
<MoveImportDir src="./src" dest="./src-clean" />
</target>
}}
* 参考リンク [#reference]
- [https://ant.apache.org/manual/develop.html Developing with Ant(Writing Your Own Task)]
* コメント [#comment]
#comment
#comment