File	Doc	Category	Size	Date	Package
MessageFormat.java	API Doc	Java SE 6 API	63879	Tue Jun 10 00:25:52 BST 2008	java.text

MessageFormat

• java.lang.Object
  • java.text.Format

Fields Summary
private static final long	serialVersionUID
private Locale	locale The locale to use for formatting numbers and dates.
private String	pattern The string that the formatted values are to be plugged into. In other words, this is the pattern supplied on construction with all of the {} expressions taken out.
private static final int	INITIAL_FORMATS The initially expected number of subformats in the format
private Format[]	formats An array of formatters, which are used to format the arguments.
private int[]	offsets The positions where the results of formatting each argument are to be inserted into the pattern.
private int[]	argumentNumbers The argument numbers corresponding to each formatter. (The formatters are stored in the order they occur in the pattern, not in the order in which the arguments are specified.)
private int	maxOffset One less than the number of entries in offsets. Can also be thought of as the index of the highest-numbered element in offsets that is being used. All of these arrays should have the same number of elements being used as offsets does, and so this variable suffices to tell us how many entries are in all of them.
private static final String[]	typeList
private static final String[]	modifierList
private static final String[]	dateModifierList

Constructors Summary
public MessageFormat(String pattern) Constructs a MessageFormat for the default locale and the specified pattern. The constructor first sets the locale, then parses the pattern and creates a list of subformats for the format elements contained in it. Patterns and their interpretation are specified in the class description. param pattern the pattern for this message format exception IllegalArgumentException if the pattern is invalid this.locale = Locale.getDefault(); applyPattern(pattern);
public MessageFormat(String pattern, Locale locale) Constructs a MessageFormat for the specified locale and pattern. The constructor first sets the locale, then parses the pattern and creates a list of subformats for the format elements contained in it. Patterns and their interpretation are specified in the class description. param pattern the pattern for this message format param locale the locale for this message format exception IllegalArgumentException if the pattern is invalid since 1.4 this.locale = locale; applyPattern(pattern);

Methods Summary
private void	append(java.lang.StringBuffer result, java.text.CharacterIterator iterator) Convenience method to append all the characters in iterator to the StringBuffer result. if (iterator.first() != CharacterIterator.DONE) { char aChar; result.append(iterator.first()); while ((aChar = iterator.next()) != CharacterIterator.DONE) { result.append(aChar); } }
public void	applyPattern(java.lang.String pattern) Sets the pattern used by this message format. The method parses the pattern and creates a list of subformats for the format elements contained in it. Patterns and their interpretation are specified in the class description. param pattern the pattern for this message format exception IllegalArgumentException if the pattern is invalid StringBuffer[] segments = new StringBuffer[4]; for (int i = 0; i < segments.length; ++i) { segments[i] = new StringBuffer(); } int part = 0; int formatNumber = 0; boolean inQuote = false; int braceStack = 0; maxOffset = -1; for (int i = 0; i < pattern.length(); ++i) { char ch = pattern.charAt(i); if (part == 0) { if (ch == '\'") { if (i + 1 < pattern.length() && pattern.charAt(i+1) == '\'") { segments[part].append(ch); // handle doubles ++i; } else { inQuote = !inQuote; } } else if (ch == '{" && !inQuote) { part = 1; } else { segments[part].append(ch); } } else if (inQuote) { // just copy quotes in parts segments[part].append(ch); if (ch == '\'") { inQuote = false; } } else { switch (ch) { case ',": if (part < 3) part += 1; else segments[part].append(ch); break; case '{": ++braceStack; segments[part].append(ch); break; case '}": if (braceStack == 0) { part = 0; makeFormat(i, formatNumber, segments); formatNumber++; } else { --braceStack; segments[part].append(ch); } break; case '\'": inQuote = true; // fall through, so we keep quotes in other parts default: segments[part].append(ch); break; } } } if (braceStack == 0 && part != 0) { maxOffset = -1; throw new IllegalArgumentException("Unmatched braces in the pattern."); } this.pattern = segments[0].toString();
public java.lang.Object	clone() Creates and returns a copy of this object. return a clone of this instance. MessageFormat other = (MessageFormat) super.clone(); // clone arrays. Can't do with utility because of bug in Cloneable other.formats = (Format[]) formats.clone(); // shallow clone for (int i = 0; i < formats.length; ++i) { if (formats[i] != null) other.formats[i] = (Format)formats[i].clone(); } // for primitives or immutables, shallow clone is enough other.offsets = (int[]) offsets.clone(); other.argumentNumbers = (int[]) argumentNumbers.clone(); return other;
private static final void	copyAndFixQuotes(java.lang.String source, int start, int end, java.lang.StringBuffer target) for (int i = start; i < end; ++i) { char ch = source.charAt(i); if (ch == '{") { target.append("'{'"); } else if (ch == '}") { target.append("'}'"); } else if (ch == '\'") { target.append("''"); } else { target.append(ch); } }
public boolean	equals(java.lang.Object obj) Equality comparison between two message format objects if (this == obj) // quick check return true; if (obj == null || getClass() != obj.getClass()) return false; MessageFormat other = (MessageFormat) obj; return (maxOffset == other.maxOffset && pattern.equals(other.pattern) && ((locale != null && locale.equals(other.locale)) || (locale == null && other.locale == null)) && Arrays.equals(offsets,other.offsets) && Arrays.equals(argumentNumbers,other.argumentNumbers) && Arrays.equals(formats,other.formats));
private static final int	findKeyword(java.lang.String s, java.lang.String[] list) s = s.trim().toLowerCase(); for (int i = 0; i < list.length; ++i) { if (s.equals(list[i])) return i; } return -1;
public final java.lang.StringBuffer	format(java.lang.Object[] arguments, java.lang.StringBuffer result, java.text.FieldPosition pos) Formats an array of objects and appends the MessageFormat's pattern, with format elements replaced by the formatted objects, to the provided StringBuffer. The text substituted for the individual format elements is derived from the current subformat of the format element and the arguments element at the format element's argument index as indicated by the first matching line of the following table. An argument is unavailable if arguments is null or has fewer than argumentIndex+1 elements. Subformat Argument Formatted Text any unavailable "{" + argumentIndex + "}" any null "null" instanceof ChoiceFormat any subformat.format(argument).indexOf('{') >= 0 ? (new MessageFormat(subformat.format(argument), getLocale())).format(argument) : subformat.format(argument) != null any subformat.format(argument) null instanceof Number NumberFormat.getInstance(getLocale()).format(argument) null instanceof Date DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, getLocale()).format(argument) null instanceof String argument null any argument.toString() If pos is non-null, and refers to Field.ARGUMENT, the location of the first formatted string will be returned. param arguments an array of objects to be formatted and substituted. param result where text is appended. param pos On input: an alignment field, if desired. On output: the offsets of the alignment field. exception IllegalArgumentException if an argument in the arguments array is not of the type expected by the format element(s) that use it. return subformat(arguments, result, pos, null);
public static java.lang.String	format(java.lang.String pattern, java.lang.Object arguments) Creates a MessageFormat with the given pattern and uses it to format the given arguments. This is equivalent to (new {@link #MessageFormat(String) MessageFormat}(pattern)).{@link #format(java.lang.Object[], java.lang.StringBuffer, java.text.FieldPosition) format}(arguments, new StringBuffer(), null).toString() exception IllegalArgumentException if the pattern is invalid, or if an argument in the arguments array is not of the type expected by the format element(s) that use it. MessageFormat temp = new MessageFormat(pattern); return temp.format(arguments);
public final java.lang.StringBuffer	format(java.lang.Object arguments, java.lang.StringBuffer result, java.text.FieldPosition pos) Formats an array of objects and appends the MessageFormat's pattern, with format elements replaced by the formatted objects, to the provided StringBuffer. This is equivalent to {@link #format(java.lang.Object[], java.lang.StringBuffer, java.text.FieldPosition) format}((Object[]) arguments, result, pos) param arguments an array of objects to be formatted and substituted. param result where text is appended. param pos On input: an alignment field, if desired. On output: the offsets of the alignment field. exception IllegalArgumentException if an argument in the arguments array is not of the type expected by the format element(s) that use it. return subformat((Object[]) arguments, result, pos, null);
public java.text.AttributedCharacterIterator	formatToCharacterIterator(java.lang.Object arguments) Formats an array of objects and inserts them into the MessageFormat's pattern, producing an AttributedCharacterIterator. You can use the returned AttributedCharacterIterator to build the resulting String, as well as to determine information about the resulting String. The text of the returned AttributedCharacterIterator is the same that would be returned by {@link #format(java.lang.Object[], java.lang.StringBuffer, java.text.FieldPosition) format}(arguments, new StringBuffer(), null).toString() In addition, the AttributedCharacterIterator contains at least attributes indicating where text was generated from an argument in the arguments array. The keys of these attributes are of type MessageFormat.Field, their values are Integer objects indicating the index in the arguments array of the argument from which the text was generated. The attributes/value from the underlying Format instances that MessageFormat uses will also be placed in the resulting AttributedCharacterIterator. This allows you to not only find where an argument is placed in the resulting String, but also which fields it contains in turn. param arguments an array of objects to be formatted and substituted. return AttributedCharacterIterator describing the formatted value. exception NullPointerException if arguments is null. exception IllegalArgumentException if an argument in the arguments array is not of the type expected by the format element(s) that use it. since 1.4 StringBuffer result = new StringBuffer(); ArrayList iterators = new ArrayList(); if (arguments == null) { throw new NullPointerException( "formatToCharacterIterator must be passed non-null object"); } subformat((Object[]) arguments, result, null, iterators); if (iterators.size() == 0) { return createAttributedCharacterIterator(""); } return createAttributedCharacterIterator( (AttributedCharacterIterator[])iterators.toArray( new AttributedCharacterIterator[iterators.size()]));
public java.text.Format[]	getFormats() Gets the formats used for the format elements in the previously set pattern string. The order of formats in the returned array corresponds to the order of format elements in the pattern string. Since the order of format elements in a pattern string often changes during localization, it's generally better to use the {@link #getFormatsByArgumentIndex getFormatsByArgumentIndex} method, which assumes an order of formats corresponding to the order of elements in the arguments array passed to the format methods or the result array returned by the parse methods. return the formats used for the format elements in the pattern Format[] resultArray = new Format[maxOffset + 1]; System.arraycopy(formats, 0, resultArray, 0, maxOffset + 1); return resultArray;
public java.text.Format[]	getFormatsByArgumentIndex() Gets the formats used for the values passed into format methods or returned from parse methods. The indices of elements in the returned array correspond to the argument indices used in the previously set pattern string. The order of formats in the returned array thus corresponds to the order of elements in the arguments array passed to the format methods or the result array returned by the parse methods. If an argument index is used for more than one format element in the pattern string, then the format used for the last such format element is returned in the array. If an argument index is not used for any format element in the pattern string, then null is returned in the array. return the formats used for the arguments within the pattern since 1.4 int maximumArgumentNumber = -1; for (int i = 0; i <= maxOffset; i++) { if (argumentNumbers[i] > maximumArgumentNumber) { maximumArgumentNumber = argumentNumbers[i]; } } Format[] resultArray = new Format[maximumArgumentNumber + 1]; for (int i = 0; i <= maxOffset; i++) { resultArray[argumentNumbers[i]] = formats[i]; } return resultArray;
public java.util.Locale	getLocale() Gets the locale that's used when creating or comparing subformats. return the locale used when creating or comparing subformats return locale;
public int	hashCode() Generates a hash code for the message format object. return pattern.hashCode(); // enough for reasonable distribution
private void	makeFormat(int position, int offsetNumber, java.lang.StringBuffer[] segments) // get the argument number int argumentNumber; try { argumentNumber = Integer.parseInt(segments[1].toString()); // always unlocalized! } catch (NumberFormatException e) { throw new IllegalArgumentException("can't parse argument number " + segments[1]); } if (argumentNumber < 0) { throw new IllegalArgumentException("negative argument number " + argumentNumber); } // resize format information arrays if necessary if (offsetNumber >= formats.length) { int newLength = formats.length * 2; Format[] newFormats = new Format[newLength]; int[] newOffsets = new int[newLength]; int[] newArgumentNumbers = new int[newLength]; System.arraycopy(formats, 0, newFormats, 0, maxOffset + 1); System.arraycopy(offsets, 0, newOffsets, 0, maxOffset + 1); System.arraycopy(argumentNumbers, 0, newArgumentNumbers, 0, maxOffset + 1); formats = newFormats; offsets = newOffsets; argumentNumbers = newArgumentNumbers; } int oldMaxOffset = maxOffset; maxOffset = offsetNumber; offsets[offsetNumber] = segments[0].length(); argumentNumbers[offsetNumber] = argumentNumber; // now get the format Format newFormat = null; switch (findKeyword(segments[2].toString(), typeList)) { case 0: break; case 1: case 2:// number switch (findKeyword(segments[3].toString(), modifierList)) { case 0: // default; newFormat = NumberFormat.getInstance(locale); break; case 1: case 2:// currency newFormat = NumberFormat.getCurrencyInstance(locale); break; case 3: case 4:// percent newFormat = NumberFormat.getPercentInstance(locale); break; case 5: case 6:// integer newFormat = NumberFormat.getIntegerInstance(locale); break; default: // pattern newFormat = new DecimalFormat(segments[3].toString(), DecimalFormatSymbols.getInstance(locale)); break; } break; case 3: case 4: // date switch (findKeyword(segments[3].toString(), dateModifierList)) { case 0: // default newFormat = DateFormat.getDateInstance(DateFormat.DEFAULT, locale); break; case 1: case 2: // short newFormat = DateFormat.getDateInstance(DateFormat.SHORT, locale); break; case 3: case 4: // medium newFormat = DateFormat.getDateInstance(DateFormat.DEFAULT, locale); break; case 5: case 6: // long newFormat = DateFormat.getDateInstance(DateFormat.LONG, locale); break; case 7: case 8: // full newFormat = DateFormat.getDateInstance(DateFormat.FULL, locale); break; default: newFormat = new SimpleDateFormat(segments[3].toString(), locale); break; } break; case 5: case 6:// time switch (findKeyword(segments[3].toString(), dateModifierList)) { case 0: // default newFormat = DateFormat.getTimeInstance(DateFormat.DEFAULT, locale); break; case 1: case 2: // short newFormat = DateFormat.getTimeInstance(DateFormat.SHORT, locale); break; case 3: case 4: // medium newFormat = DateFormat.getTimeInstance(DateFormat.DEFAULT, locale); break; case 5: case 6: // long newFormat = DateFormat.getTimeInstance(DateFormat.LONG, locale); break; case 7: case 8: // full newFormat = DateFormat.getTimeInstance(DateFormat.FULL, locale); break; default: newFormat = new SimpleDateFormat(segments[3].toString(), locale); break; } break; case 7: case 8:// choice try { newFormat = new ChoiceFormat(segments[3].toString()); } catch (Exception e) { maxOffset = oldMaxOffset; throw new IllegalArgumentException( "Choice Pattern incorrect"); } break; default: maxOffset = oldMaxOffset; throw new IllegalArgumentException("unknown format type at "); } formats[offsetNumber] = newFormat; segments[1].setLength(0); // throw away other segments segments[2].setLength(0); segments[3].setLength(0);
public java.lang.Object[]	parse(java.lang.String source, java.text.ParsePosition pos) Parses the string. Caveats: The parse may fail in a number of circumstances. For example: If one of the arguments does not occur in the pattern. If the format of an argument loses information, such as with a choice format where a large number formats to "many". Does not yet handle recursion (where the substituted strings contain {n} references.) Will not always find a match (or the correct match) if some part of the parse is ambiguous. For example, if the pattern "{1},{2}" is used with the string arguments {"a,b", "c"}, it will format as "a,b,c". When the result is parsed, it will return {"a", "b,c"}. If a single argument is parsed more than once in the string, then the later parse wins. When the parse fails, use ParsePosition.getErrorIndex() to find out where in the string the parsing failed. The returned error index is the starting offset of the sub-patterns that the string is comparing with. For example, if the parsing string "AAA {0} BBB" is comparing against the pattern "AAD {0} BBB", the error index is 0. When an error occurs, the call to this method will return null. If the source is null, return an empty array. if (source == null) { Object[] empty = {}; return empty; } int maximumArgumentNumber = -1; for (int i = 0; i <= maxOffset; i++) { if (argumentNumbers[i] > maximumArgumentNumber) { maximumArgumentNumber = argumentNumbers[i]; } } Object[] resultArray = new Object[maximumArgumentNumber + 1]; int patternOffset = 0; int sourceOffset = pos.index; ParsePosition tempStatus = new ParsePosition(0); for (int i = 0; i <= maxOffset; ++i) { // match up to format int len = offsets[i] - patternOffset; if (len == 0 || pattern.regionMatches(patternOffset, source, sourceOffset, len)) { sourceOffset += len; patternOffset += len; } else { pos.errorIndex = sourceOffset; return null; // leave index as is to signal error } // now use format if (formats[i] == null) { // string format // if at end, use longest possible match // otherwise uses first match to intervening string // does NOT recursively try all possibilities int tempLength = (i != maxOffset) ? offsets[i+1] : pattern.length(); int next; if (patternOffset >= tempLength) { next = source.length(); }else{ next = source.indexOf( pattern.substring(patternOffset,tempLength), sourceOffset); } if (next < 0) { pos.errorIndex = sourceOffset; return null; // leave index as is to signal error } else { String strValue= source.substring(sourceOffset,next); if (!strValue.equals("{"+argumentNumbers[i]+"}")) resultArray[argumentNumbers[i]] = source.substring(sourceOffset,next); sourceOffset = next; } } else { tempStatus.index = sourceOffset; resultArray[argumentNumbers[i]] = formats[i].parseObject(source,tempStatus); if (tempStatus.index == sourceOffset) { pos.errorIndex = sourceOffset; return null; // leave index as is to signal error } sourceOffset = tempStatus.index; // update } } int len = pattern.length() - patternOffset; if (len == 0 || pattern.regionMatches(patternOffset, source, sourceOffset, len)) { pos.index = sourceOffset + len; } else { pos.errorIndex = sourceOffset; return null; // leave index as is to signal error } return resultArray;
public java.lang.Object[]	parse(java.lang.String source) Parses text from the beginning of the given string to produce an object array. The method may not use the entire text of the given string. See the {@link #parse(String, ParsePosition)} method for more information on message parsing. param source A String whose beginning should be parsed. return An Object array parsed from the string. exception ParseException if the beginning of the specified string cannot be parsed. ParsePosition pos = new ParsePosition(0); Object[] result = parse(source, pos); if (pos.index == 0) // unchanged, returned object is null throw new ParseException("MessageFormat parse error!", pos.errorIndex); return result;
public java.lang.Object	parseObject(java.lang.String source, java.text.ParsePosition pos) Parses text from a string to produce an object array. The method attempts to parse text starting at the index given by pos. If parsing succeeds, then the index of pos is updated to the index after the last character used (parsing does not necessarily use all characters up to the end of the string), and the parsed object array is returned. The updated pos can be used to indicate the starting point for the next call to this method. If an error occurs, then the index of pos is not changed, the error index of pos is set to the index of the character where the error occurred, and null is returned. See the {@link #parse(String, ParsePosition)} method for more information on message parsing. param source A String, part of which should be parsed. param pos A ParsePosition object with index and error index information as described above. return An Object array parsed from the string. In case of error, returns null. exception NullPointerException if pos is null. return parse(source, pos);
private void	readObject(java.io.ObjectInputStream in) After reading an object from the input stream, do a simple verification to maintain class invariants. throws InvalidObjectException if the objects read from the stream is invalid. in.defaultReadObject(); boolean isValid = maxOffset >= -1 && formats.length > maxOffset && offsets.length > maxOffset && argumentNumbers.length > maxOffset; if (isValid) { int lastOffset = pattern.length() + 1; for (int i = maxOffset; i >= 0; --i) { if ((offsets[i] < 0) || (offsets[i] > lastOffset)) { isValid = false; break; } else { lastOffset = offsets[i]; } } } if (!isValid) { throw new InvalidObjectException("Could not reconstruct MessageFormat from corrupt stream."); }
public void	setFormat(int formatElementIndex, java.text.Format newFormat) Sets the format to use for the format element with the given format element index within the previously set pattern string. The format element index is the zero-based number of the format element counting from the start of the pattern string. Since the order of format elements in a pattern string often changes during localization, it is generally better to use the {@link #setFormatByArgumentIndex setFormatByArgumentIndex} method, which accesses format elements based on the argument index they specify. param formatElementIndex the index of a format element within the pattern param newFormat the format to use for the specified format element exception ArrayIndexOutOfBoundsException if formatElementIndex is equal to or larger than the number of format elements in the pattern string formats[formatElementIndex] = newFormat;
public void	setFormatByArgumentIndex(int argumentIndex, java.text.Format newFormat) Sets the format to use for the format elements within the previously set pattern string that use the given argument index. The argument index is part of the format element definition and represents an index into the arguments array passed to the format methods or the result array returned by the parse methods. If the argument index is used for more than one format element in the pattern string, then the new format is used for all such format elements. If the argument index is not used for any format element in the pattern string, then the new format is ignored. param argumentIndex the argument index for which to use the new format param newFormat the new format to use since 1.4 for (int j = 0; j <= maxOffset; j++) { if (argumentNumbers[j] == argumentIndex) { formats[j] = newFormat; } }
public void	setFormats(java.text.Format[] newFormats) Sets the formats to use for the format elements in the previously set pattern string. The order of formats in newFormats corresponds to the order of format elements in the pattern string. If more formats are provided than needed by the pattern string, the remaining ones are ignored. If fewer formats are provided than needed, then only the first newFormats.length formats are replaced. Since the order of format elements in a pattern string often changes during localization, it is generally better to use the {@link #setFormatsByArgumentIndex setFormatsByArgumentIndex} method, which assumes an order of formats corresponding to the order of elements in the arguments array passed to the format methods or the result array returned by the parse methods. param newFormats the new formats to use exception NullPointerException if newFormats is null int runsToCopy = newFormats.length; if (runsToCopy > maxOffset + 1) { runsToCopy = maxOffset + 1; } for (int i = 0; i < runsToCopy; i++) { formats[i] = newFormats[i]; }
public void	setFormatsByArgumentIndex(java.text.Format[] newFormats) Sets the formats to use for the values passed into format methods or returned from parse methods. The indices of elements in newFormats correspond to the argument indices used in the previously set pattern string. The order of formats in newFormats thus corresponds to the order of elements in the arguments array passed to the format methods or the result array returned by the parse methods. If an argument index is used for more than one format element in the pattern string, then the corresponding new format is used for all such format elements. If an argument index is not used for any format element in the pattern string, then the corresponding new format is ignored. If fewer formats are provided than needed, then only the formats for argument indices less than newFormats.length are replaced. param newFormats the new formats to use exception NullPointerException if newFormats is null since 1.4 for (int i = 0; i <= maxOffset; i++) { int j = argumentNumbers[i]; if (j < newFormats.length) { formats[i] = newFormats[j]; } }
public void	setLocale(java.util.Locale locale) Sets the locale to be used when creating or comparing subformats. This affects subsequent calls to the {@link #applyPattern applyPattern} and {@link #toPattern toPattern} methods if format elements specify a format type and therefore have the subformats created in the applyPattern method, as well as to the format and {@link #formatToCharacterIterator formatToCharacterIterator} methods if format elements do not specify a format type and therefore have the subformats created in the formatting methods. Subformats that have already been created are not affected. param locale the locale to be used when creating or comparing subformats this.locale = locale;
private java.lang.StringBuffer	subformat(java.lang.Object[] arguments, java.lang.StringBuffer result, java.text.FieldPosition fp, java.util.List characterIterators) Internal routine used by format. If characterIterators is non-null, AttributedCharacterIterator will be created from the subformats as necessary. If characterIterators is null and fp is non-null and identifies Field.MESSAGE_ARGUMENT, the location of the first replaced argument will be set in it. exception IllegalArgumentException if an argument in the arguments array is not of the type expected by the format element(s) that use it. // note: this implementation assumes a fast substring & index. // if this is not true, would be better to append chars one by one. int lastOffset = 0; int last = result.length(); for (int i = 0; i <= maxOffset; ++i) { result.append(pattern.substring(lastOffset, offsets[i])); lastOffset = offsets[i]; int argumentNumber = argumentNumbers[i]; if (arguments == null || argumentNumber >= arguments.length) { result.append("{" + argumentNumber + "}"); continue; } // int argRecursion = ((recursionProtection >> (argumentNumber*2)) & 0x3); if (false) { // if (argRecursion == 3){ // prevent loop!!! result.append('\uFFFD"); } else { Object obj = arguments[argumentNumber]; String arg = null; Format subFormatter = null; if (obj == null) { arg = "null"; } else if (formats[i] != null) { subFormatter = formats[i]; if (subFormatter instanceof ChoiceFormat) { arg = formats[i].format(obj); if (arg.indexOf('{") >= 0) { subFormatter = new MessageFormat(arg, locale); obj = arguments; arg = null; } } } else if (obj instanceof Number) { // format number if can subFormatter = NumberFormat.getInstance(locale); } else if (obj instanceof Date) { // format a Date if can subFormatter = DateFormat.getDateTimeInstance( DateFormat.SHORT, DateFormat.SHORT, locale);//fix } else if (obj instanceof String) { arg = (String) obj; } else { arg = obj.toString(); if (arg == null) arg = "null"; } // At this point we are in two states, either subFormatter // is non-null indicating we should format obj using it, // or arg is non-null and we should use it as the value. if (characterIterators != null) { // If characterIterators is non-null, it indicates we need // to get the CharacterIterator from the child formatter. if (last != result.length()) { characterIterators.add( createAttributedCharacterIterator(result.substring (last))); last = result.length(); } if (subFormatter != null) { AttributedCharacterIterator subIterator = subFormatter.formatToCharacterIterator(obj); append(result, subIterator); if (last != result.length()) { characterIterators.add( createAttributedCharacterIterator( subIterator, Field.ARGUMENT, new Integer(argumentNumber))); last = result.length(); } arg = null; } if (arg != null && arg.length() > 0) { result.append(arg); characterIterators.add( createAttributedCharacterIterator( arg, Field.ARGUMENT, new Integer(argumentNumber))); last = result.length(); } } else { if (subFormatter != null) { arg = subFormatter.format(obj); } last = result.length(); result.append(arg); if (i == 0 && fp != null && Field.ARGUMENT.equals( fp.getFieldAttribute())) { fp.setBeginIndex(last); fp.setEndIndex(result.length()); } last = result.length(); } } } result.append(pattern.substring(lastOffset, pattern.length())); if (characterIterators != null && last != result.length()) { characterIterators.add(createAttributedCharacterIterator( result.substring(last))); } return result;
public java.lang.String	toPattern() Returns a pattern representing the current state of the message format. The string is constructed from internal information and therefore does not necessarily equal the previously applied pattern. return a pattern representing the current state of the message format // later, make this more extensible int lastOffset = 0; StringBuffer result = new StringBuffer(); for (int i = 0; i <= maxOffset; ++i) { copyAndFixQuotes(pattern, lastOffset, offsets[i],result); lastOffset = offsets[i]; result.append('{"); result.append(argumentNumbers[i]); if (formats[i] == null) { // do nothing, string format } else if (formats[i] instanceof DecimalFormat) { if (formats[i].equals(NumberFormat.getInstance(locale))) { result.append(",number"); } else if (formats[i].equals(NumberFormat.getCurrencyInstance(locale))) { result.append(",number,currency"); } else if (formats[i].equals(NumberFormat.getPercentInstance(locale))) { result.append(",number,percent"); } else if (formats[i].equals(NumberFormat.getIntegerInstance(locale))) { result.append(",number,integer"); } else { result.append(",number," + ((DecimalFormat)formats[i]).toPattern()); } } else if (formats[i] instanceof SimpleDateFormat) { if (formats[i].equals(DateFormat.getDateInstance( DateFormat.DEFAULT,locale))) { result.append(",date"); } else if (formats[i].equals(DateFormat.getDateInstance( DateFormat.SHORT,locale))) { result.append(",date,short"); } else if (formats[i].equals(DateFormat.getDateInstance( DateFormat.DEFAULT,locale))) { result.append(",date,medium"); } else if (formats[i].equals(DateFormat.getDateInstance( DateFormat.LONG,locale))) { result.append(",date,long"); } else if (formats[i].equals(DateFormat.getDateInstance( DateFormat.FULL,locale))) { result.append(",date,full"); } else if (formats[i].equals(DateFormat.getTimeInstance( DateFormat.DEFAULT,locale))) { result.append(",time"); } else if (formats[i].equals(DateFormat.getTimeInstance( DateFormat.SHORT,locale))) { result.append(",time,short"); } else if (formats[i].equals(DateFormat.getTimeInstance( DateFormat.DEFAULT,locale))) { result.append(",time,medium"); } else if (formats[i].equals(DateFormat.getTimeInstance( DateFormat.LONG,locale))) { result.append(",time,long"); } else if (formats[i].equals(DateFormat.getTimeInstance( DateFormat.FULL,locale))) { result.append(",time,full"); } else { result.append(",date," + ((SimpleDateFormat)formats[i]).toPattern()); } } else if (formats[i] instanceof ChoiceFormat) { result.append(",choice," + ((ChoiceFormat)formats[i]).toPattern()); } else { //result.append(", unknown"); } result.append('}"); } copyAndFixQuotes(pattern, lastOffset, pattern.length(), result); return result.toString();