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authorTom Tromey <tromey@redhat.com>2005-07-16 01:27:14 +0000
committerTom Tromey <tromey@gcc.gnu.org>2005-07-16 01:27:14 +0000
commitb0fa81eea9a270f23d6ad67ca7a6d25c18d20da1 (patch)
tree8762d1f992e2f725a6bde1ff966ed6f1e5f4f823 /libjava/java/nio/charset/CharsetDecoder.java
parentea54b29342c8506acb4f858c68340c44b72e3532 (diff)
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Major merge with Classpath.
Removed many duplicate files. * HACKING: Updated.x * classpath: Imported new directory. * standard.omit: New file. * Makefile.in, aclocal.m4, configure: Rebuilt. * sources.am: New file. * configure.ac: Run Classpath configure script. Moved code around to support. Disable xlib AWT peers (temporarily). * Makefile.am (SUBDIRS): Added 'classpath' (JAVAC): Removed. (AM_CPPFLAGS): Added more -I options. (BOOTCLASSPATH): Simplified. Completely redid how sources are built. Include sources.am. * include/Makefile.am (tool_include__HEADERS): Removed jni.h. * include/jni.h: Removed (in Classpath). * scripts/classes.pl: Updated to look at built classes. * scripts/makemake.tcl: New file. * testsuite/libjava.jni/jni.exp (gcj_jni_compile_c_to_so): Added -I options. (gcj_jni_invocation_compile_c_to_binary): Likewise. From-SVN: r102082
Diffstat (limited to 'libjava/java/nio/charset/CharsetDecoder.java')
-rw-r--r--libjava/java/nio/charset/CharsetDecoder.java313
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diff --git a/libjava/java/nio/charset/CharsetDecoder.java b/libjava/java/nio/charset/CharsetDecoder.java
deleted file mode 100644
index 0203c88..0000000
--- a/libjava/java/nio/charset/CharsetDecoder.java
+++ /dev/null
@@ -1,313 +0,0 @@
-/* CharsetDecoder.java --
- Copyright (C) 2002 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.nio.charset;
-
-import java.nio.ByteBuffer;
-import java.nio.CharBuffer;
-
-/**
- * @author Jesse Rosenstock
- * @since 1.4
- */
-public abstract class CharsetDecoder
-{
- private static final int STATE_RESET = 0;
- private static final int STATE_CODING = 1;
- private static final int STATE_END = 2;
- private static final int STATE_FLUSHED = 3;
-
- private static final String DEFAULT_REPLACEMENT = "\uFFFD";
-
- private final Charset charset;
- private final float averageCharsPerByte;
- private final float maxCharsPerByte;
- private String replacement;
-
- private int state = STATE_RESET;
-
- private CodingErrorAction malformedInputAction
- = CodingErrorAction.REPORT;
- private CodingErrorAction unmappableCharacterAction
- = CodingErrorAction.REPORT;
-
- private CharsetDecoder (Charset cs, float averageCharsPerByte,
- float maxCharsPerByte, String replacement)
- {
- if (averageCharsPerByte <= 0.0f)
- throw new IllegalArgumentException ("Non-positive averageCharsPerByte");
- if (maxCharsPerByte <= 0.0f)
- throw new IllegalArgumentException ("Non-positive maxCharsPerByte");
-
- this.charset = cs;
- this.averageCharsPerByte
- = averageCharsPerByte;
- this.maxCharsPerByte
- = maxCharsPerByte;
- this.replacement = replacement;
- implReplaceWith (replacement);
- }
-
- protected CharsetDecoder (Charset cs, float averageCharsPerByte,
- float maxCharsPerByte)
- {
- this (cs, averageCharsPerByte, maxCharsPerByte, DEFAULT_REPLACEMENT);
- }
-
- public final float averageCharsPerByte ()
- {
- return averageCharsPerByte;
- }
-
- public final Charset charset ()
- {
- return charset;
- }
-
- public final CharBuffer decode (ByteBuffer in)
- throws CharacterCodingException
- {
- // XXX: Sun's Javadoc seems to contradict itself saying an
- // IllegalStateException is thrown "if a decoding operation is already
- // in progress" and also that "it resets this Decoder".
- // Should we check to see that the state is reset, or should we
- // call reset()?
- if (state != STATE_RESET)
- throw new IllegalStateException ();
-
- // REVIEW: Using max instead of average may allocate a very large
- // buffer. Maybe we should do something more efficient?
- int remaining = in.remaining ();
- int n = (int) (remaining * maxCharsPerByte ());
- CharBuffer out = CharBuffer.allocate (n);
-
- if (remaining == 0)
- {
- state = STATE_FLUSHED;
- return out;
- }
-
- CoderResult cr = decode (in, out, true);
- if (cr.isError ())
- cr.throwException ();
-
- cr = flush (out);
- if (cr.isError ())
- cr.throwException ();
-
- reset();
- out.flip ();
- return out;
- }
-
- public final CoderResult decode (ByteBuffer in, CharBuffer out,
- boolean endOfInput)
- {
- int newState = endOfInput ? STATE_END : STATE_CODING;
- // XXX: Need to check for "previous step was an invocation [not] of
- // this method with a value of true for the endOfInput parameter but
- // a return value indicating an incomplete decoding operation"
- // XXX: We will not check the previous return value, just
- // that the previous call passed true for endOfInput
- if (state != STATE_RESET && state != STATE_CODING
- && !(endOfInput && state == STATE_END))
- throw new IllegalStateException ();
- state = newState;
-
- for (;;)
- {
- CoderResult cr;
- try
- {
- cr = decodeLoop (in, out);
- }
- catch (RuntimeException e)
- {
- throw new CoderMalfunctionError (e);
- }
-
- if (cr.isOverflow ())
- return cr;
-
- if (cr.isUnderflow ())
- {
- if (endOfInput && in.hasRemaining ())
- cr = CoderResult.malformedForLength (in.remaining ());
- else
- return cr;
- }
-
- CodingErrorAction action = cr.isMalformed ()
- ? malformedInputAction
- : unmappableCharacterAction;
-
- if (action == CodingErrorAction.REPORT)
- return cr;
-
- if (action == CodingErrorAction.REPLACE)
- {
- if (out.remaining () < replacement.length ())
- return CoderResult.OVERFLOW;
- out.put (replacement);
- }
-
- in.position (in.position () + cr.length ());
- }
- }
-
- protected abstract CoderResult decodeLoop (ByteBuffer in, CharBuffer out);
-
- public Charset detectedCharset ()
- {
- throw new UnsupportedOperationException ();
- }
-
- public final CoderResult flush (CharBuffer out)
- {
- // It seems weird that you can flush after reset, but Sun's javadoc
- // says an IllegalStateException is thrown "If the previous step of the
- // current decoding operation was an invocation neither of the reset
- // method nor ... of the three-argument decode method with a value of
- // true for the endOfInput parameter."
- // Further note that flush() only requires that there not be
- // an IllegalStateException if the previous step was a call to
- // decode with true as the last argument. It does not require
- // that the call succeeded. decode() does require that it succeeded.
- // XXX: test this to see if reality matches javadoc
- if (state != STATE_RESET && state != STATE_END)
- throw new IllegalStateException ();
-
- state = STATE_FLUSHED;
- return implFlush (out);
- }
-
- protected CoderResult implFlush (CharBuffer out)
- {
- return CoderResult.UNDERFLOW;
- }
-
- public final CharsetDecoder onMalformedInput (CodingErrorAction newAction)
- {
- if (newAction == null)
- throw new IllegalArgumentException ("Null action");
-
- malformedInputAction = newAction;
- implOnMalformedInput (newAction);
- return this;
- }
-
- protected void implOnMalformedInput (CodingErrorAction newAction)
- {
- // default implementation does nothing
- }
-
- protected void implOnUnmappableCharacter (CodingErrorAction newAction)
- {
- // default implementation does nothing
- }
-
- protected void implReplaceWith (String newReplacement)
- {
- // default implementation does nothing
- }
-
- protected void implReset ()
- {
- // default implementation does nothing
- }
-
- public boolean isAutoDetecting ()
- {
- return false;
- }
-
- public boolean isCharsetDetected ()
- {
- throw new UnsupportedOperationException ();
- }
-
- public CodingErrorAction malformedInputAction ()
- {
- return malformedInputAction;
- }
-
- public final float maxCharsPerByte ()
- {
- return maxCharsPerByte;
- }
-
- public final CharsetDecoder onUnmappableCharacter
- (CodingErrorAction newAction)
- {
- if (newAction == null)
- throw new IllegalArgumentException ("Null action");
-
- unmappableCharacterAction = newAction;
- implOnUnmappableCharacter (newAction);
- return this;
- }
-
- public final String replacement ()
- {
- return replacement;
- }
-
- public final CharsetDecoder replaceWith (String newReplacement)
- {
- if (newReplacement == null)
- throw new IllegalArgumentException ("Null replacement");
- if (newReplacement.length () == 0)
- throw new IllegalArgumentException ("Empty replacement");
- // XXX: what about maxCharsPerByte?
-
- this.replacement = newReplacement;
- implReplaceWith (newReplacement);
- return this;
- }
-
- public final CharsetDecoder reset ()
- {
- state = STATE_RESET;
- implReset ();
- return this;
- }
-
- public CodingErrorAction unmappableCharacterAction ()
- {
- return unmappableCharacterAction;
- }
-}