/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* The SystemFlavorMap is a configurable map between "natives" (Strings), which
* correspond to platform-specific data formats, and "flavors" (DataFlavors),
* which correspond to platform-independent MIME types. This mapping is used
* by the data transfer subsystem to transfer data between Java and native
* applications, and between Java applications in separate VMs.
* <p>
* In the Sun reference implementation, the default SystemFlavorMap is
* initialized by the file <code>jre/lib/flavormap.properties</code> and the
* contents of the URL referenced by the AWT property
* <code>AWT.DnD.flavorMapFileURL</code>. See <code>flavormap.properties</code>
* for details.
*
* @since 1.2
*/
/**
* Constant prefix used to tag Java types converted to native platform
* type.
*/
/**
* System singleton which maps a thread's ClassLoader to a SystemFlavorMap.
*/
/**
* Copied from java.util.Properties.
*/
/**
* The list of valid, decoded text flavor representation classes, in order
* from best to worst.
*/
"java.io.Reader", "java.lang.String", "java.nio.CharBuffer", "\"[C\""
};
/**
* The list of valid, encoded text flavor representation classes, in order
* from best to worst.
*/
"java.io.InputStream", "java.nio.ByteBuffer", "\"[B\""
};
/**
*/
/**
* This constant is passed to flavorToNativeLookup() to indicate that a
* a native should be synthesized, stored, and returned by encoding the
* DataFlavor's MIME type in case if the DataFlavor is not found in
* 'flavorToNative' map.
*/
private static final boolean SYNTHESIZE_IF_NOT_FOUND = true;
/**
* Maps native Strings to Lists of DataFlavors (or base type Strings for
* text DataFlavors).
* Do not use the field directly, use getNativeToFlavor() instead.
*/
/**
* Accessor to nativeToFlavor map. Since we use lazy initialization we must
* use this accessor instead of direct access to the field which may not be
* initialized yet. This method will initialize the field if needed.
*
* @return nativeToFlavor
*/
if (!isMapInitialized) {
}
return nativeToFlavor;
}
/**
* Maps DataFlavors (or base type Strings for text DataFlavors) to Lists of
* native Strings.
* Do not use the field directly, use getFlavorToNative() instead.
*/
/**
* Accessor to flavorToNative map. Since we use lazy initialization we must
* use this accessor instead of direct access to the field which may not be
* initialized yet. This method will initialize the field if needed.
*
* @return flavorToNative
*/
if (!isMapInitialized) {
}
return flavorToNative;
}
/**
* Shows if the object has been initialized.
*/
private boolean isMapInitialized = false;
/**
* Caches the result of getNativesForFlavor(). Maps DataFlavors to
* SoftReferences which reference Lists of String natives.
*/
/**
* Caches the result getFlavorsForNative(). Maps String natives to
* SoftReferences which reference Lists of DataFlavors.
*/
/**
* Dynamic mapping generation used for text mappings should not be applied
* to the DataFlavors and String natives for which the mappings have been
* explicitly specified with setFlavorsForNative() or
* setNativesForFlavor(). This keeps all such keys.
*/
/**
* Returns the default FlavorMap for this thread's ClassLoader.
*/
if (contextClassLoader == null) {
}
synchronized(flavorMaps) {
fm = new SystemFlavorMap();
}
}
return fm;
}
private SystemFlavorMap() {
}
/**
* Initializes a SystemFlavorMap by reading flavormap.properties and
* AWT.DnD.flavorMapFileURL.
* For thread-safety must be called under lock on this.
*/
private void initSystemFlavorMap() {
if (isMapInitialized) {
return;
}
isMapInitialized = true;
public BufferedReader run() {
"lib" +
try {
return new BufferedReader
(new InputStreamReader
} catch (MalformedURLException e) {
System.err.println("MalformedURLException:" + e + " while loading default flavormap.properties file:" + fileName);
} catch (IOException e) {
System.err.println("IOException:" + e + " while loading default flavormap.properties file:" + fileName);
}
return null;
}
});
public BufferedReader run() {
return null;
}
try {
return new BufferedReader
(new InputStreamReader
} catch (MalformedURLException e) {
System.err.println("MalformedURLException:" + e + " while reading AWT.DnD.flavorMapFileURL:" + url);
} catch (IOException e) {
}
return null;
}
});
if (flavormapDotProperties != null) {
try {
} catch (IOException e) {
}
}
if (flavormapURL != null) {
try {
} catch (IOException e) {
}
}
}
/**
* Copied code from java.util.Properties. Parsing the data ourselves is the
* only way to handle duplicate keys and values.
*/
while (true) {
// Get next line
return;
}
// Continue lines that end in slashes if they are not comments
while (continueLine(line)) {
nextLine = "";
}
// Advance beyond whitespace on new line
int startIndex = 0;
if (whiteSpaceChars.
{
break;
}
}
}
// Find start of key
int keyStart = 0;
if(whiteSpaceChars.
break;
}
}
// Blank lines are ignored
continue;
}
// Find separation between key and value
int separatorIndex = keyStart;
if (currentChar == '\\') {
} else if (keyValueSeparators.
break;
}
}
// Skip over whitespace after key if any
int valueIndex = separatorIndex;
if (whiteSpaceChars.
break;
}
}
// Skip over one non whitespace key value separators if any
if (valueIndex < len) {
valueIndex++;
}
}
// Skip over white space after other separators if any
while (valueIndex < len) {
if (whiteSpaceChars.
break;
}
valueIndex++;
}
: "";
// Convert then store key and value
try {
{
// We need to store the charset and eoln
// parameters, if any, so that the
// DataTransferer will have this information
// for conversion into the native format.
if (transferer != null) {
}
}
// But don't store any of these parameters in the
// DataFlavor itself for any text natives (even
// non-charset ones). The SystemFlavorMap will
// synthesize the appropriate mappings later.
}
} catch (MimeTypeParseException e) {
e.printStackTrace();
continue;
}
try {
} catch (Exception e) {
try {
continue;
}
}
// For text/* flavors, store mappings in separate maps to
// enable dynamic mapping generation at a run-time.
} else {
}
}
}
}
}
/**
* Copied from java.util.Properties.
*/
int slashCount = 0;
slashCount++;
}
}
/**
* Copied from java.util.Properties.
*/
char aChar;
for (int x = 0; x < len; ) {
if (aChar == '\\') {
if (aChar == 'u') {
// Read the xxxx
int value = 0;
for (int i = 0; i < 4; i++) {
switch (aChar) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9': {
break;
}
case 'a': case 'b': case 'c':
case 'd': case 'e': case 'f': {
break;
}
case 'A': case 'B': case 'C':
case 'D': case 'E': case 'F': {
break;
}
default: {
throw new IllegalArgumentException(
"Malformed \\uxxxx encoding.");
}
}
}
} else {
if (aChar == 't') {
aChar = '\t';
} else if (aChar == 'r') {
aChar = '\r';
} else if (aChar == 'n') {
aChar = '\n';
} else if (aChar == 'f') {
aChar = '\f';
}
}
} else {
}
}
}
/**
* Stores the listed object under the specified hash key in map. Unlike a
* standard map, the listed object will not replace any object already at
* the appropriate Map location, but rather will be appended to a List
* stored in that location.
*/
}
}
}
/**
* Semantically equivalent to 'nativeToFlavor.get(nat)'. This method
* handles the case where 'nat' is not found in 'nativeToFlavor'. In that
* case, a new DataFlavor is synthesized, stored, and returned, if and
* only if the specified native is encoded as a Java MIME type.
*/
if (transferer != null) {
if (!platformFlavors.isEmpty()) {
// Prepending the platform-specific mappings ensures
// that the flavors added with
// addFlavorForUnencodedNative() are at the end of
// list.
}
}
}
}
try {
} catch (Exception e) {
": " + e.getMessage() +
"\"while constructing DataFlavor for: " +
decoded);
}
}
}
}
}
/**
* Semantically equivalent to 'flavorToNative.get(flav)'. This method
* handles the case where 'flav' is not found in 'flavorToNative' depending
* on the value of passes 'synthesize' parameter. If 'synthesize' is
* SYNTHESIZE_IF_NOT_FOUND a native is synthesized, stored, and returned by
* encoding the DataFlavor's MIME type. Otherwise an empty List is returned
* and 'flavorToNative' remains unaffected.
*/
final boolean synthesize) {
if (transferer != null) {
if (!platformNatives.isEmpty()) {
// Prepend the platform-specific mappings to ensure
// that the natives added with
// addUnencodedNativeForFlavor() are at the end of
// list.
}
}
}
}
if (synthesize) {
}
} else {
}
}
return natives;
}
/**
* Returns a <code>List</code> of <code>String</code> natives to which the
* specified <code>DataFlavor</code> can be translated by the data transfer
* subsystem. The <code>List</code> will be sorted from best native to
* worst. That is, the first native will best reflect data in the specified
* flavor to the underlying native platform.
* <p>
* If the specified <code>DataFlavor</code> is previously unknown to the
* data transfer subsystem and the data transfer subsystem is unable to
* translate this <code>DataFlavor</code> to any existing native, then
* invoking this method will establish a
* mapping in both directions between the specified <code>DataFlavor</code>
* and an encoded version of its MIME type as its native.
*
* @param flav the <code>DataFlavor</code> whose corresponding natives
* should be returned. If <code>null</code> is specified, all
* natives currently known to the data transfer subsystem are
* returned in a non-deterministic order.
* @return a <code>java.util.List</code> of <code>java.lang.String</code>
* objects which are platform-specific representations of platform-
* specific data formats
*
* @see #encodeDataFlavor
* @since 1.4
*/
// Check cache, even for null flav
// Create a copy, because client code can modify the returned
// list.
}
}
// In this case we shouldn't synthesize a native for this flavor,
// since its mappings were explicitly specified.
// For text/* flavors, flavor-to-native mappings specified in
// flavormap.properties are stored per flavor's base type.
// To prevent the List stored in the map from modification.
}
}
// To prevent the List stored in the map from modification.
// This also guarantees that removeAll() is supported.
// Use HashSet to get constant-time performance for search.
} else {
}
}
} else {
// In this branch it is guaranteed that natives explicitly
// listed for flav's MIME type were added with
// addUnencodedNativeForFlavor(), so they have lower priority.
// flavorToNativeLookup() never returns null.
// It can return an empty List, however.
if (!explicitList.isEmpty()) {
// To prevent the List stored in the map from modification.
// This also guarantees that removeAll() is supported.
// Use HashSet to get constant-time performance for search.
}
}
} else {
// In this branch it is guaranteed that natives explicitly
// listed for flav's MIME type were added with
// addUnencodedNativeForFlavor(), so they have lower priority.
// flavorToNativeLookup() never returns null.
// It can return an empty List, however.
if (!explicitList.isEmpty()) {
// To prevent the List stored in the map from modification.
// Use HashSet to get constant-time performance for search.
}
}
} else {
}
// Create a copy, because client code can modify the returned list.
}
/**
* Returns a <code>List</code> of <code>DataFlavor</code>s to which the
* specified <code>String</code> native can be translated by the data
* transfer subsystem. The <code>List</code> will be sorted from best
* <code>DataFlavor</code> to worst. That is, the first
* <code>DataFlavor</code> will best reflect data in the specified
* native to a Java application.
* <p>
* If the specified native is previously unknown to the data transfer
* subsystem, and that native has been properly encoded, then invoking this
* method will establish a mapping in both directions between the specified
* native and a <code>DataFlavor</code> whose MIME type is a decoded
* version of the native.
* <p>
* If the specified native is not a properly encoded native and the
* mappings for this native have not been altered with
* <code>setFlavorsForNative</code>, then the contents of the
* <code>List</code> is platform dependent, but <code>null</code>
* cannot be returned.
*
* @param nat the native whose corresponding <code>DataFlavor</code>s
* should be returned. If <code>null</code> is specified, all
* <code>DataFlavor</code>s currently known to the data transfer
* subsystem are returned in a non-deterministic order.
* @return a <code>java.util.List</code> of <code>DataFlavor</code>
* objects into which platform-specific data in the specified,
* platform-specific native can be translated
*
* @see #encodeJavaMIMEType
* @since 1.4
*/
// Check cache, even for null nat
}
}
natives_iter.hasNext(); )
{
flavors_iter.hasNext(); )
{
}
}
}
} else {
return flavors;
}
for (Iterator flavorsAndbaseTypes_iter =
{
try {
} catch (MimeTypeParseException mtpe) {
// Cannot happen, since we checked all mappings
// on load from flavormap.properties.
assert(false);
}
null)) {
{
}
try {
toAdd = new DataFlavor
(baseType + ";charset=Unicode;class=" +
UNICODE_TEXT_CLASSES[i]);
} catch (ClassNotFoundException cannotHappen) {
}
}
}
for (Iterator charset_iter =
charset_iter.hasNext(); )
{
i++)
{
try {
toAdd = new DataFlavor
";class=" + ENCODED_TEXT_CLASSES[i]);
} catch (ClassNotFoundException cannotHappen) {
}
// Check for equality to plainTextFlavor so
// that we can ensure that the exact charset of
// plainTextFlavor, not the canonical charset
// or another equivalent charset with a
// different name, is used.
}
}
}
}
{
}
} else {
// Non-charset text natives should be treated as
// opaque, 8-bit data in any of its various
// representations.
try {
";class=" + ENCODED_TEXT_CLASSES[i]);
} catch (ClassNotFoundException cannotHappen) {
}
}
}
}
} else {
}
}
}
}
}
/**
* Returns a <code>Map</code> of the specified <code>DataFlavor</code>s to
* their most preferred <code>String</code> native. Each native value will
* be the same as the first native in the List returned by
* <code>getNativesForFlavor</code> for the specified flavor.
* <p>
* If a specified <code>DataFlavor</code> is previously unknown to the
* data transfer subsystem, then invoking this method will establish a
* mapping in both directions between the specified <code>DataFlavor</code>
* and an encoded version of its MIME type as its native.
*
* @param flavors an array of <code>DataFlavor</code>s which will be the
* key set of the returned <code>Map</code>. If <code>null</code> is
* specified, a mapping of all <code>DataFlavor</code>s known to the
* data transfer subsystem to their most preferred
* <code>String</code> natives will be returned.
* @return a <code>java.util.Map</code> of <code>DataFlavor</code>s to
* <code>String</code> natives
*
* @see #getNativesForFlavor
* @see #encodeDataFlavor
*/
{
// Use getNativesForFlavor to generate extra natives for text flavors
// and stringFlavor
}
}
return retval;
}
/**
* Returns a <code>Map</code> of the specified <code>String</code> natives
* to their most preferred <code>DataFlavor</code>. Each
* <code>DataFlavor</code> value will be the same as the first
* <code>DataFlavor</code> in the List returned by
* <code>getFlavorsForNative</code> for the specified native.
* <p>
* If a specified native is previously unknown to the data transfer
* subsystem, and that native has been properly encoded, then invoking this
* method will establish a mapping in both directions between the specified
* native and a <code>DataFlavor</code> whose MIME type is a decoded
* version of the native.
*
* @param natives an array of <code>String</code>s which will be the
* key set of the returned <code>Map</code>. If <code>null</code> is
* specified, a mapping of all supported <code>String</code> natives
* to their most preferred <code>DataFlavor</code>s will be
* returned.
* @return a <code>java.util.Map</code> of <code>String</code> natives to
* <code>DataFlavor</code>s
*
* @see #getFlavorsForNative
* @see #encodeJavaMIMEType
*/
{
// Use getFlavorsForNative to generate extra flavors for text natives
}
}
return retval;
}
/**
* Adds a mapping from the specified <code>DataFlavor</code> (and all
* <code>DataFlavor</code>s equal to the specified <code>DataFlavor</code>)
* to the specified <code>String</code> native.
* Unlike <code>getNativesForFlavor</code>, the mapping will only be
* established in one direction, and the native will not be encoded. To
* establish a two-way mapping, call
* <code>addFlavorForUnencodedNative</code> as well. The new mapping will
* be of lower priority than any existing mapping.
* This method has no effect if a mapping from the specified or equal
* <code>DataFlavor</code> to the specified <code>String</code> native
* already exists.
*
* @param flav the <code>DataFlavor</code> key for the mapping
* @param nat the <code>String</code> native value for the mapping
* @throws NullPointerException if flav or nat is <code>null</code>
*
* @see #addFlavorForUnencodedNative
* @since 1.4
*/
throw new NullPointerException("null arguments not permitted");
}
return;
}
}
/**
* Discards the current mappings for the specified <code>DataFlavor</code>
* and all <code>DataFlavor</code>s equal to the specified
* <code>DataFlavor</code>, and creates new mappings to the
* specified <code>String</code> natives.
* Unlike <code>getNativesForFlavor</code>, the mappings will only be
* established in one direction, and the natives will not be encoded. To
* establish two-way mappings, call <code>setFlavorsForNative</code>
* as well. The first native in the array will represent the highest
* priority mapping. Subsequent natives will represent mappings of
* decreasing priority.
* <p>
* If the array contains several elements that reference equal
* <code>String</code> natives, this method will establish new mappings
* for the first of those elements and ignore the rest of them.
* <p>
* It is recommended that client code not reset mappings established by the
* data transfer subsystem. This method should only be used for
* application-level mappings.
*
* @param flav the <code>DataFlavor</code> key for the mappings
* @param natives the <code>String</code> native values for the mappings
* @throws NullPointerException if flav or natives is <code>null</code>
* or if natives contains <code>null</code> elements
*
* @see #setFlavorsForNative
* @since 1.4
*/
throw new NullPointerException("null arguments not permitted");
}
}
// Clear the cache to handle the case of empty natives.
}
/**
* Adds a mapping from a single <code>String</code> native to a single
* <code>DataFlavor</code>. Unlike <code>getFlavorsForNative</code>, the
* mapping will only be established in one direction, and the native will
* not be encoded. To establish a two-way mapping, call
* <code>addUnencodedNativeForFlavor</code> as well. The new mapping will
* be of lower priority than any existing mapping.
* This method has no effect if a mapping from the specified
* <code>String</code> native to the specified or equal
* <code>DataFlavor</code> already exists.
*
* @param nat the <code>String</code> native key for the mapping
* @param flav the <code>DataFlavor</code> value for the mapping
* @throws NullPointerException if nat or flav is <code>null</code>
*
* @see #addUnencodedNativeForFlavor
* @since 1.4
*/
DataFlavor flav) {
throw new NullPointerException("null arguments not permitted");
}
return;
}
}
/**
* Discards the current mappings for the specified <code>String</code>
* native, and creates new mappings to the specified
* <code>DataFlavor</code>s. Unlike <code>getFlavorsForNative</code>, the
* mappings will only be established in one direction, and the natives need
* not be encoded. To establish two-way mappings, call
* <code>setNativesForFlavor</code> as well. The first
* <code>DataFlavor</code> in the array will represent the highest priority
* mapping. Subsequent <code>DataFlavor</code>s will represent mappings of
* decreasing priority.
* <p>
* If the array contains several elements that reference equal
* <code>DataFlavor</code>s, this method will establish new mappings
* for the first of those elements and ignore the rest of them.
* <p>
* It is recommended that client code not reset mappings established by the
* data transfer subsystem. This method should only be used for
* application-level mappings.
*
* @param nat the <code>String</code> native key for the mappings
* @param flavors the <code>DataFlavor</code> values for the mappings
* @throws NullPointerException if nat or flavors is <code>null</code>
* or if flavors contains <code>null</code> elements
*
* @see #setNativesForFlavor
* @since 1.4
*/
DataFlavor[] flavors) {
throw new NullPointerException("null arguments not permitted");
}
}
// Clear the cache to handle the case of empty flavors.
}
/**
* Encodes a MIME type for use as a <code>String</code> native. The format
* of an encoded representation of a MIME type is implementation-dependent.
* The only restrictions are:
* <ul>
* <li>The encoded representation is <code>null</code> if and only if the
* MIME type <code>String</code> is <code>null</code>.</li>
* <li>The encoded representations for two non-<code>null</code> MIME type
* <code>String</code>s are equal if and only if these <code>String</code>s
* are equal according to <code>String.equals(Object)</code>.</li>
* </ul>
* <p>
* Sun's reference implementation of this method returns the specified MIME
* type <code>String</code> prefixed with <code>JAVA_DATAFLAVOR:</code>.
*
* @param mimeType the MIME type to encode
* @return the encoded <code>String</code>, or <code>null</code> if
* mimeType is <code>null</code>
*/
: null;
}
/**
* Encodes a <code>DataFlavor</code> for use as a <code>String</code>
* native. The format of an encoded <code>DataFlavor</code> is
* implementation-dependent. The only restrictions are:
* <ul>
* <li>The encoded representation is <code>null</code> if and only if the
* specified <code>DataFlavor</code> is <code>null</code> or its MIME type
* <code>String</code> is <code>null</code>.</li>
* <li>The encoded representations for two non-<code>null</code>
* <code>DataFlavor</code>s with non-<code>null</code> MIME type
* <code>String</code>s are equal if and only if the MIME type
* <code>String</code>s of these <code>DataFlavor</code>s are equal
* according to <code>String.equals(Object)</code>.</li>
* </ul>
* <p>
* Sun's reference implementation of this method returns the MIME type
* <code>String</code> of the specified <code>DataFlavor</code> prefixed
* with <code>JAVA_DATAFLAVOR:</code>.
*
* @param flav the <code>DataFlavor</code> to encode
* @return the encoded <code>String</code>, or <code>null</code> if
* flav is <code>null</code> or has a <code>null</code> MIME type
*/
: null;
}
/**
* Returns whether the specified <code>String</code> is an encoded Java
* MIME type.
*
* @param str the <code>String</code> to test
* @return <code>true</code> if the <code>String</code> is encoded;
* <code>false</code> otherwise
*/
}
/**
* Decodes a <code>String</code> native for use as a Java MIME type.
*
* @param nat the <code>String</code> to decode
* @return the decoded Java MIME type, or <code>null</code> if nat is not
* an encoded <code>String</code> native
*/
return (isJavaMIMEType(nat))
: null;
}
/**
* Decodes a <code>String</code> native for use as a
* <code>DataFlavor</code>.
*
* @param nat the <code>String</code> to decode
* @return the decoded <code>DataFlavor</code>, or <code>null</code> if
* nat is not an encoded <code>String</code> native
*/
throws ClassNotFoundException
{
return (retval_str != null)
? new DataFlavor(retval_str)
: null;
}
}