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[Jnode-svn-commits] SF.net SVN: jnode:[5292] trunk
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From: <cr...@us...> - 2009-04-16 14:43:20
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Revision: 5292
http://jnode.svn.sourceforge.net/jnode/?rev=5292&view=rev
Author: crawley
Date: 2009-04-16 14:42:56 +0000 (Thu, 16 Apr 2009)
Log Message:
-----------
Further changes to protect against (in this case) an application closing a
WriterOutputStream wrapper for the shell's console out/err Writers.
Modified Paths:
--------------
trunk/core/src/core/org/jnode/log4j/config/Log4jConfigurePlugin.java
trunk/core/src/core/org/jnode/util/WriterOutputStream.java
trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsole.java
trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsolePlugin.java
trunk/shell/src/shell/org/jnode/shell/command/driver/console/ConsoleCommand.java
trunk/shell/src/shell/org/jnode/shell/io/CommandInputOutput.java
trunk/shell/src/shell/org/jnode/shell/io/CommandOutput.java
trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleReader.java
trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleWriter.java
trunk/shell/src/shell/org/jnode/shell/isolate/IsolateCommandThreadImpl.java
trunk/shell/src/test/org/jnode/test/shell/io/WriterOutputStreamTest.java
Modified: trunk/core/src/core/org/jnode/log4j/config/Log4jConfigurePlugin.java
===================================================================
--- trunk/core/src/core/org/jnode/log4j/config/Log4jConfigurePlugin.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/core/src/core/org/jnode/log4j/config/Log4jConfigurePlugin.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -79,7 +79,7 @@
final VirtualConsoleAppender debugApp =
new VirtualConsoleAppender(new PatternLayout(LAYOUT), console, false);
debugApp.setThreshold(Level.DEBUG);
- BootLog.setDebugOut(new PrintStream(new WriterOutputStream(console.getOut()), true));
+ BootLog.setDebugOut(new PrintStream(new WriterOutputStream(console.getOut(), false), true));
TextConsole atc = new ActiveTextConsole(conMgr);
final VirtualConsoleAppender infoApp = new VirtualConsoleAppender(
Modified: trunk/core/src/core/org/jnode/util/WriterOutputStream.java
===================================================================
--- trunk/core/src/core/org/jnode/util/WriterOutputStream.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/core/src/core/org/jnode/util/WriterOutputStream.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -42,16 +42,31 @@
private Writer writer;
private CharsetDecoder decoder;
+ private final boolean reallyClose;
- public WriterOutputStream(Writer writer) {
- this(writer, Charset.defaultCharset().name());
+ /**
+ * Construct an OutputStream that encodes the data in the default character coding system.
+ * @param writer the Writer to be wrapped
+ * @param reallyClose if {@code true}, calling {@link #close()} will close
+ * the Writer; otherwise {@link #close()} means {@link #flush()}.
+ */
+ public WriterOutputStream(Writer writer, boolean reallyClose) {
+ this(writer, Charset.defaultCharset().name(), reallyClose);
}
- public WriterOutputStream(Writer writer, String encoding) {
+ /**
+ * Construct an OutputStream that encodes the data in the supplied character coding system.
+ * @param writer the Writer to be wrapped
+ * @param encoding the name of a character coding system.
+ * @param reallyClose if {@code true}, calling {@link #close()} will close
+ * the Writer; otherwise {@link #close()} means {@link #flush()}.
+ */
+ public WriterOutputStream(Writer writer, String encoding, boolean reallyClose) {
this.writer = writer;
this.decoder = Charset.forName(encoding).newDecoder();
- bytes.clear();
- chars.clear();
+ this.bytes.clear();
+ this.chars.clear();
+ this.reallyClose = reallyClose;
}
@Override
@@ -70,7 +85,7 @@
@Override
public void close() throws IOException {
- flush(true);
+ flush(reallyClose);
writer.close();
}
Modified: trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsole.java
===================================================================
--- trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsole.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsole.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -110,8 +110,8 @@
this.scrHeight = screen.getHeight();
this.out = new ConsoleWriter(this, 0x07);
this.err = new ConsoleWriter(this, 0x04);
- this.savedOut = new PrintStream(new WriterOutputStream(this.out), true);
- this.savedErr = new PrintStream(new WriterOutputStream(this.err), true);
+ this.savedOut = new PrintStream(new WriterOutputStream(this.out, false), true);
+ this.savedErr = new PrintStream(new WriterOutputStream(this.err, false), true);
this.claimSystemOutErr = false;
this.myIsolate = VmIsolate.currentIsolate();
}
Modified: trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsolePlugin.java
===================================================================
--- trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsolePlugin.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/core/src/driver/org/jnode/driver/console/textscreen/TextScreenConsolePlugin.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -62,8 +62,8 @@
(ConsoleManager.CreateOptions.TEXT |
ConsoleManager.CreateOptions.SCROLLABLE));
mgr.focus(first);
- System.setOut(new PrintStream(new WriterOutputStream(first.getOut()), true));
- System.setErr(new PrintStream(new WriterOutputStream(first.getErr()), true));
+ System.setOut(new PrintStream(new WriterOutputStream(first.getOut(), false), true));
+ System.setErr(new PrintStream(new WriterOutputStream(first.getErr(), false), true));
System.out.println(VmSystem.getBootLog());
} catch (ConsoleException ex) {
throw new PluginException(ex);
Modified: trunk/shell/src/shell/org/jnode/shell/command/driver/console/ConsoleCommand.java
===================================================================
--- trunk/shell/src/shell/org/jnode/shell/command/driver/console/ConsoleCommand.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/shell/src/shell/org/jnode/shell/command/driver/console/ConsoleCommand.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -120,8 +120,8 @@
final PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
TextConsole console = createConsoleWithShell(conMgr, out);
System.setIn(new ReaderInputStream(console.getIn()));
- System.setOut(new PrintStream(new WriterOutputStream(console.getOut()), true));
- System.setErr(new PrintStream(new WriterOutputStream(console.getErr()), true));
+ System.setOut(new PrintStream(new WriterOutputStream(console.getOut(), false), true));
+ System.setErr(new PrintStream(new WriterOutputStream(console.getErr(), false), true));
} catch (Exception ex) {
// FIXME
System.out.println("Problem creating the isolated console");
Modified: trunk/shell/src/shell/org/jnode/shell/io/CommandInputOutput.java
===================================================================
--- trunk/shell/src/shell/org/jnode/shell/io/CommandInputOutput.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/shell/src/shell/org/jnode/shell/io/CommandInputOutput.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -67,7 +67,8 @@
public synchronized OutputStream getOutputStream() {
if (outputStream == null) {
- outputStream = new WriterOutputStream(writer, getEncoding());
+ boolean isConsole = writer instanceof ShellConsoleWriter;
+ outputStream = new WriterOutputStream(writer, getEncoding(), !isConsole);
}
return outputStream;
}
Modified: trunk/shell/src/shell/org/jnode/shell/io/CommandOutput.java
===================================================================
--- trunk/shell/src/shell/org/jnode/shell/io/CommandOutput.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/shell/src/shell/org/jnode/shell/io/CommandOutput.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -56,7 +56,8 @@
public synchronized OutputStream getOutputStream() {
if (outputStream == null) {
- outputStream = new WriterOutputStream(writer, getEncoding());
+ boolean isConsole = writer instanceof ShellConsoleWriter;
+ outputStream = new WriterOutputStream(writer, getEncoding(), !isConsole);
}
return outputStream;
}
Modified: trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleReader.java
===================================================================
--- trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleReader.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleReader.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -44,6 +44,9 @@
this.reader = reader;
}
+ /**
+ * Calling close has no effect.
+ */
@Override
public void close() throws IOException {
// Do nothing
Modified: trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleWriter.java
===================================================================
--- trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleWriter.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/shell/src/shell/org/jnode/shell/io/ShellConsoleWriter.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -41,6 +41,9 @@
this.writer = writer;
}
+ /**
+ * The close method flushes the underlying stream but does not close it.
+ */
@Override
public void close() throws IOException {
flush();
Modified: trunk/shell/src/shell/org/jnode/shell/isolate/IsolateCommandThreadImpl.java
===================================================================
--- trunk/shell/src/shell/org/jnode/shell/isolate/IsolateCommandThreadImpl.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/shell/src/shell/org/jnode/shell/isolate/IsolateCommandThreadImpl.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -43,6 +43,7 @@
import org.jnode.shell.ShellInvocationException;
import org.jnode.shell.ThreadExitListener;
import org.jnode.shell.io.CommandIO;
+import org.jnode.shell.io.ShellConsoleWriter;
import org.jnode.util.ReaderInputStream;
import org.jnode.util.WriterOutputStream;
import org.jnode.vm.isolate.ObjectLinkMessage;
@@ -110,7 +111,8 @@
private Socket createSocketForOutput(Closeable closeable) throws IOException {
OutputStream out;
if (closeable instanceof Writer) {
- out = new WriterOutputStream((Writer) closeable);
+ boolean isConsole = closeable instanceof ShellConsoleWriter;
+ out = new WriterOutputStream((Writer) closeable, !isConsole);
} else {
out = (OutputStream) closeable;
}
Modified: trunk/shell/src/test/org/jnode/test/shell/io/WriterOutputStreamTest.java
===================================================================
--- trunk/shell/src/test/org/jnode/test/shell/io/WriterOutputStreamTest.java 2009-04-16 13:27:02 UTC (rev 5291)
+++ trunk/shell/src/test/org/jnode/test/shell/io/WriterOutputStreamTest.java 2009-04-16 14:42:56 UTC (rev 5292)
@@ -32,7 +32,7 @@
public void testEmpty() throws Exception {
String LINE = "";
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
byte[] buffer = LINE.getBytes();
wos.write(buffer);
wos.flush();
@@ -42,7 +42,7 @@
public void testLine() throws Exception {
String LINE = "The quick brown fox jumped over the lazy doc";
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
byte[] buffer = LINE.getBytes();
wos.write(buffer);
wos.flush();
@@ -52,7 +52,7 @@
public void testByteAtATime() throws Exception {
String LINE = "The quick brown fox jumped over the lazy doc";
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
byte[] buffer = LINE.getBytes();
for (byte b : buffer) {
wos.write(b);
@@ -64,7 +64,7 @@
public void testByteAtATimeWithFlushes() throws Exception {
String LINE = "The quick brown fox jumped over the lazy doc";
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
byte[] buffer = LINE.getBytes();
for (int i = 0; i < buffer.length; i++) {
wos.write(buffer[i]);
@@ -81,7 +81,7 @@
}
byte[] buffer = new String(chars).getBytes();
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
wos.write(buffer);
wos.flush();
StringBuffer sb = sw.getBuffer();
@@ -94,7 +94,7 @@
public void testBadUnicode() throws Exception {
byte[] BAD = new byte[] {(byte) 0x80};
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
try {
wos.write(BAD);
wos.flush();
@@ -107,7 +107,7 @@
public void testBadUnicode2() throws Exception {
byte[] BAD = new byte[] {(byte) 'h', (byte) 'i', (byte) 0x80};
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
try {
wos.write(BAD);
wos.flush();
@@ -121,7 +121,7 @@
public void testBadUnicode3() throws Exception {
byte[] BAD = new byte[] {(byte) 'h', (byte) 'i', (byte) 0xc2, (byte) 0x00};
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
try {
wos.write(BAD);
wos.flush();
@@ -135,7 +135,7 @@
public void testBadUnicode4() throws Exception {
byte[] BAD = new byte[] {(byte) 'h', (byte) 'i', (byte) 0xc2};
StringWriter sw = new StringWriter();
- WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8");
+ WriterOutputStream wos = new WriterOutputStream(sw, "UTF-8", true);
wos.write(BAD);
wos.flush();
try {
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