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Tempfile.java
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/
Tempfile.java
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/*
***** BEGIN LICENSE BLOCK *****
* Version: EPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse Public
* License Version 1.0 (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.eclipse.org/legal/epl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2004-2009 Thomas E Enebo <enebo@acm.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the EPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the EPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.ext.tempfile;
import java.io.File;
import java.io.IOException;
import org.jruby.CompatVersion;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyFile;
import org.jruby.RubyFixnum;
import org.jruby.RubyHash;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Arity;
import org.jruby.runtime.Block;
import org.jruby.runtime.BlockCallback;
import org.jruby.runtime.CallBlock19;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import static org.jruby.runtime.Visibility.*;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.io.EncodingUtils;
import org.jruby.util.io.IOOptions;
import org.jruby.util.io.ModeFlags;
/**
* An implementation of tempfile.rb in Java.
*/
@JRubyClass(name="Tempfile", parent="File")
public class Tempfile extends org.jruby.RubyFile {
private static ObjectAllocator TEMPFILE_ALLOCATOR = new ObjectAllocator() {
@Override
public IRubyObject allocate(Ruby runtime, RubyClass klass) {
RubyFile instance = new Tempfile(runtime, klass);
return instance;
}
};
public static RubyClass createTempfileClass(Ruby runtime) {
RubyClass tempfileClass = runtime.defineClass("Tempfile", runtime.getFile(), TEMPFILE_ALLOCATOR);
tempfileClass.defineAnnotatedMethods(Tempfile.class);
return tempfileClass;
}
private File tmpFile = null;
protected IRubyObject opts;
// This should only be called by this and RubyFile.
// It allows this object to be created without a IOHandler.
public Tempfile(Ruby runtime, RubyClass type) {
super(runtime, type);
}
@JRubyMethod(required = 1, optional = 1, visibility = PRIVATE, compat = CompatVersion.RUBY1_8)
@Override
public IRubyObject initialize(IRubyObject[] args, Block block) {
return initializeCommon(getRuntime().getCurrentContext(), args);
}
@JRubyMethod(required = 1, optional = 2, visibility = PRIVATE, compat = CompatVersion.RUBY1_9)
@Override
public IRubyObject initialize19(ThreadContext context, IRubyObject[] args, Block block) {
return initializeCommon(context, args);
}
private IRubyObject initializeCommon(ThreadContext context, IRubyObject[] args) {
BlockCallback body = new TempfileCallback();
// #create and #make_tmpname come from Dir::Tmpname, included into
// tempfile in lib/ruby/shared/tempfile.rb. We use create here to
// match filename algorithm and allow them to be overridden.
callMethod(context, "create", args, CallBlock19.newCallClosure(this, this.getMetaClass(), Arity.OPTIONAL, body, context));
return context.nil;
}
private class TempfileCallback implements BlockCallback {
@Override
public IRubyObject call(ThreadContext context, IRubyObject[] args, Block block) {
Ruby runtime = context.runtime;
IRubyObject tmpname = args[0];
IOOptions ioOptions = newIOOptions(runtime, ModeFlags.RDWR | ModeFlags.EXCL);
if (context.is19) {
// check for trailing hash
if (args.length > 1) {
if (args[args.length - 1] instanceof RubyHash) {
// TODO: encoding options do not appear to actually get passed through to file init logic
RubyHash options = (RubyHash)args[args.length - 1];
ioOptions = updateIOOptionsFromOptions(context, options, ioOptions);
EncodingUtils.getEncodingOptionFromObject(context, Tempfile.this, options);
}
}
}
try {
File tmp = new File(tmpname.convertToString().toString());
if (tmp.createNewFile()) {
tmpFile = tmp;
path = tmp.getPath();
try {
tmpFile.deleteOnExit();
} catch (NullPointerException npe) {
// See JRUBY-4624.
// Due to JDK bug, NPE could be thrown
// when shutdown is in progress.
// Do nothing.
} catch (IllegalStateException ise) {
// do nothing, shutdown in progress
}
initializeOpen(ioOptions);
} else {
throw context.runtime.newErrnoEEXISTError(path);
}
} catch (IOException e) {
throw context.runtime.newIOErrorFromException(e);
}
return context.nil;
}
}
private void initializeOpen(IOOptions ioOptions) {
getRuntime().getPosix().chmod(path, 0600);
sysopenInternal(path, ioOptions.getModeFlags(), 0600);
}
@JRubyMethod(visibility = PUBLIC)
public IRubyObject open() {
if (!isClosed()) close();
openInternal(path, openFile.getModeAsString(getRuntime()));
return this;
}
@JRubyMethod(visibility = PROTECTED)
public IRubyObject _close(ThreadContext context) {
return !isClosed() ? super.close() : context.runtime.getNil();
}
@JRubyMethod(optional = 1, visibility = PUBLIC)
public IRubyObject close(ThreadContext context, IRubyObject[] args, Block block) {
boolean unlink = args.length == 1 ? args[0].isTrue() : false;
return unlink ? close_bang(context) : _close(context);
}
@JRubyMethod(name = "close!", visibility = PUBLIC)
public IRubyObject close_bang(ThreadContext context) {
_close(context);
tmpFile.delete();
return context.runtime.getNil();
}
@JRubyMethod(name = {"unlink", "delete"})
public IRubyObject unlink(ThreadContext context) {
// JRUBY-6688: delete when closed, warn otherwise
if (isClosed()) {
// the user intends to delete the file immediately, so do it
if (!tmpFile.exists() || tmpFile.delete()) {
path = null;
}
} else {
// else, no-op, since we can't unlink the file without breaking stat et al
context.runtime.getWarnings().warn("Tempfile#unlink or delete called on open file; ignoring");
}
return context.runtime.getNil();
}
@JRubyMethod(name = {"size", "length"}, compat = CompatVersion.RUBY1_8)
@Override
public IRubyObject size(ThreadContext context) {
if (!isClosed()) {
flush();
return context.runtime.newFileStat(path, false).size();
}
return RubyFixnum.zero(context.runtime);
}
@JRubyMethod(name = {"size", "length"}, compat = CompatVersion.RUBY1_9)
public IRubyObject size19(ThreadContext context) {
if (!isClosed()) {
flush();
}
return context.runtime.newFileStat(path, false).size();
}
@JRubyMethod(required = 1, optional = 1, meta = true, compat = CompatVersion.RUBY1_8)
public static IRubyObject open(ThreadContext context, IRubyObject recv, IRubyObject[] args, Block block) {
Ruby runtime = context.runtime;
RubyClass klass = (RubyClass) recv;
Tempfile tempfile = (Tempfile) klass.newInstance(context, args, block);
if (block.isGiven()) {
try {
block.yield(context, tempfile);
} finally {
if (!tempfile.isClosed()) tempfile.close();
}
return runtime.getNil();
}
return tempfile;
}
@JRubyMethod(required = 1, optional = 1, meta = true, compat = CompatVersion.RUBY1_9)
public static IRubyObject open19(ThreadContext context, IRubyObject recv, IRubyObject[] args, Block block) {
Ruby runtime = context.runtime;
RubyClass klass = (RubyClass) recv;
Tempfile tempfile = (Tempfile) klass.newInstance(context, args, block);
if (block.isGiven()) {
try {
return block.yield(context, tempfile);
} finally {
if (!tempfile.isClosed()) tempfile.close();
}
} else {
return tempfile;
}
}
@JRubyMethod
@Override
public IRubyObject inspect() {
StringBuilder val = new StringBuilder();
val.append("#<Tempfile:").append(path);
if(!openFile.isOpen()) {
val.append(" (closed)");
}
val.append(">");
return getRuntime().newString(val.toString());
}
}