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/*
* Copyright 2000,2003-2004,2006 The Apache Software Foundation
*
* Licensed 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.
*
*/
package org.apache.tools.ant.taskdefs;
import java.io.File;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.Project;
/**
* Creates a given directory.
* Creates a directory and any non-existent parent directories, when
* necessary
*
* @since Ant 1.1
*
* @ant.task category="filesystem"
*/
public class Mkdir extends Task {
private static final int MKDIR_RETRY_SLEEP_MILLIS = 10;
/**
* our little directory
*/
private File dir;
/**
* create the directory and all parents
* @throws BuildException if dir is somehow invalid, or creation failed.
*/
public void execute() throws BuildException {
if (dir == null) {
throw new BuildException("dir attribute is required", getLocation());
}
if (dir.isFile()) {
throw new BuildException("Unable to create directory as a file "
+ "already exists with that name: "
+ dir.getAbsolutePath());
}
if (!dir.exists()) {
boolean result = mkdirs(dir);
if (!result) {
String msg = "Directory " + dir.getAbsolutePath()
+ " creation was not successful for an unknown reason";
throw new BuildException(msg, getLocation());
}
log("Created dir: " + dir.getAbsolutePath());
} else {
log("Skipping " + dir.getAbsolutePath() + " because it already exists.", Project.MSG_VERBOSE);
}
}
/**
* the directory to create; required.
*
* @param dir the directory to be made.
*/
public void setDir(File dir) {
this.dir = dir;
}
/**
* Attempt to fix possible race condition when creating
* directories on WinXP. If the mkdirs does not work,
* wait a little and try again.
*/
private boolean mkdirs(File f) {
if (!f.mkdirs()) {
try {
Thread.sleep(MKDIR_RETRY_SLEEP_MILLIS);
return f.mkdirs();
} catch (InterruptedException ex) {
return f.mkdirs();
}
}
return true;
}
}
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