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/*
* 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.
*
*/
package org.apache.tools.ant.taskdefs;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Locale;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.util.FileUtils;
/**
* Encapsulates a Jikes compiler, by directly executing an external
* process.
*
* <p><strong>As of Ant 1.2, this class is considered to be dead code
* by the Ant developers and is unmaintained. Don't use
* it.</strong></p>
*
* @deprecated since 1.2.
* Merged into the class Javac.
*/
public class Jikes {
// There have been reports that 300 files could be compiled
// on a command line so 250 is a conservative approach
private static final int MAX_FILES_ON_COMMAND_LINE = 250;
// CheckStyle:VisibilityModifier OFF - bc
protected JikesOutputParser jop;
protected String command;
protected Project project;
// CheckStyle:VisibilityModifier ON
/**
* Constructs a new Jikes object.
* @param jop Parser to send jike's output to
* @param command name of jikes executable
* @param project the current project
*/
protected Jikes(JikesOutputParser jop, String command, Project project) {
super();
System.err.println("As of Ant 1.2 released in October 2000, "
+ "the Jikes class");
System.err.println("is considered to be dead code by the Ant "
+ "developers and is unmaintained.");
System.err.println("Don\'t use it!");
this.jop = jop;
this.command = command;
this.project = project;
}
/**
* Do the compile with the specified arguments.
* @param args - arguments to pass to process on command line
*/
protected void compile(String[] args) {
String[] commandArray = null;
File tmpFile = null;
try {
String myos = System.getProperty("os.name");
// Windows has a 32k limit on total arg size, so
// create a temporary file to store all the arguments
if (myos.toLowerCase(Locale.ENGLISH).indexOf("windows") >= 0
&& args.length > MAX_FILES_ON_COMMAND_LINE) {
BufferedWriter out = null;
try {
tmpFile = FileUtils.getFileUtils().createTempFile("jikes",
"tmp", null, false, true);
out = new BufferedWriter(new FileWriter(tmpFile));
for (int i = 0; i < args.length; i++) {
out.write(args[i]);
out.newLine();
}
out.flush();
commandArray = new String[] {command,
"@" + tmpFile.getAbsolutePath()};
} catch (IOException e) {
throw new BuildException("Error creating temporary file",
e);
} finally {
FileUtils.close(out);
}
} else {
commandArray = new String[args.length + 1];
commandArray[0] = command;
System.arraycopy(args, 0, commandArray, 1, args.length);
}
// We assume, that everything jikes writes goes to
// standard output, not to standard error. The option
// -Xstdout that is given to Jikes in Javac.doJikesCompile()
// should guarantee this. At least I hope so. :)
try {
Execute exe = new Execute(jop);
exe.setAntRun(project);
exe.setWorkingDirectory(project.getBaseDir());
exe.setCommandline(commandArray);
exe.execute();
} catch (IOException e) {
throw new BuildException("Error running Jikes compiler", e);
}
} finally {
if (tmpFile != null) {
if (!tmpFile.delete()) {
tmpFile.deleteOnExit();
}
}
}
}
}
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