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提交 bd51894e 编写于 作者: P pchelko
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8024987: Copy/paste regression since JDK8 b86 

Reviewed-by: serb, anthony
上级 58bdae91
隐藏空白更改
内联 并排
Showing with 83 addition and 71 deletion
src/share/classes/java/awt/datatransfer/SystemFlavorMap.java
浏览文件 @ bd51894e
......@@ -70,7 +70,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
/**
* System singleton which maps a thread's ClassLoader to a SystemFlavorMap.
*/
private static final WeakHashMap flavorMaps = new WeakHashMap();
private static final WeakHashMap<ClassLoader, FlavorMap> flavorMaps = new WeakHashMap<>();
/**
* Copied from java.util.Properties.
......@@ -139,7 +139,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
* native Strings.
* Do not use the field directly, use getFlavorToNative() instead.
*/
private final Map flavorToNative = new HashMap();
private final Map<DataFlavor, List<String>> flavorToNative = new HashMap<>();
/**
* Accessor to flavorToNative map. Since we use lazy initialization we must
......@@ -148,7 +148,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
*
* @return flavorToNative
*/
private synchronized Map getFlavorToNative() {
private synchronized Map<DataFlavor, List<String>> getFlavorToNative() {
if (!isMapInitialized) {
initSystemFlavorMap();
}
......@@ -164,13 +164,13 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
* Caches the result of getNativesForFlavor(). Maps DataFlavors to
* SoftReferences which reference Lists of String natives.
*/
private Map getNativesForFlavorCache = new HashMap();
private Map<DataFlavor, SoftReference<List<String>>> getNativesForFlavorCache = new HashMap<>();
/**
* Caches the result getFlavorsForNative(). Maps String natives to
* SoftReferences which reference Lists of DataFlavors.
*/
private Map getFlavorsForNativeCache = new HashMap();
private Map<String, SoftReference<List<DataFlavor>>> getFlavorsForNativeCache = new HashMap<>();
/**
* Dynamic mapping generation used for text mappings should not be applied
......@@ -193,7 +193,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
FlavorMap fm;
synchronized(flavorMaps) {
fm = (FlavorMap)flavorMaps.get(contextClassLoader);
fm = flavorMaps.get(contextClassLoader);
if (fm == null) {
fm = new SystemFlavorMap();
flavorMaps.put(contextClassLoader, fm);
......@@ -520,10 +520,10 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
* the appropriate Map location, but rather will be appended to a List
* stored in that location.
*/
private void store(Object hashed, Object listed, Map map) {
List list = (List)map.get(hashed);
private <H, L> void store(H hashed, L listed, Map<H, List<L>> map) {
List<L> list = map.get(hashed);
if (list == null) {
list = new ArrayList(1);
list = new ArrayList<>(1);
map.put(hashed, list);
}
if (!list.contains(listed)) {
......@@ -537,17 +537,17 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
* case, a new DataFlavor is synthesized, stored, and returned, if and
* only if the specified native is encoded as a Java MIME type.
*/
private List nativeToFlavorLookup(String nat) {
private List<DataFlavor> nativeToFlavorLookup(String nat) {
List<DataFlavor> flavors = getNativeToFlavor().get(nat);
if (nat != null && !disabledMappingGenerationKeys.contains(nat)) {
DataTransferer transferer = DataTransferer.getInstance();
if (transferer != null) {
List platformFlavors =
List<DataFlavor> platformFlavors =
transferer.getPlatformMappingsForNative(nat);
if (!platformFlavors.isEmpty()) {
if (flavors != null) {
platformFlavors.removeAll(new HashSet(flavors));
platformFlavors.removeAll(new HashSet<>(flavors));
// Prepending the platform-specific mappings ensures
// that the flavors added with
// addFlavorForUnencodedNative() are at the end of
......@@ -573,15 +573,15 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
}
if (flavor != null) {
flavors = new ArrayList(1);
flavors = new ArrayList<>(1);
getNativeToFlavor().put(nat, flavors);
flavors.add(flavor);
getFlavorsForNativeCache.remove(nat);
getFlavorsForNativeCache.remove(null);
List natives = (List)getFlavorToNative().get(flavor);
List<String> natives = getFlavorToNative().get(flavor);
if (natives == null) {
natives = new ArrayList(1);
natives = new ArrayList<>(1);
getFlavorToNative().put(flavor, natives);
}
natives.add(nat);
......@@ -590,7 +590,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
}
}
return (flavors != null) ? flavors : new ArrayList(0);
return (flavors != null) ? flavors : new ArrayList<>(0);
}
/**
......@@ -601,18 +601,18 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
* encoding the DataFlavor's MIME type. Otherwise an empty List is returned
* and 'flavorToNative' remains unaffected.
*/
private List flavorToNativeLookup(final DataFlavor flav,
final boolean synthesize) {
List natives = (List)getFlavorToNative().get(flav);
private List<String> flavorToNativeLookup(final DataFlavor flav,
final boolean synthesize) {
List<String> natives = getFlavorToNative().get(flav);
if (flav != null && !disabledMappingGenerationKeys.contains(flav)) {
DataTransferer transferer = DataTransferer.getInstance();
if (transferer != null) {
List platformNatives =
List<String> platformNatives =
transferer.getPlatformMappingsForFlavor(flav);
if (!platformNatives.isEmpty()) {
if (natives != null) {
platformNatives.removeAll(new HashSet(natives));
platformNatives.removeAll(new HashSet<>(natives));
// Prepend the platform-specific mappings to ensure
// that the natives added with
// addUnencodedNativeForFlavor() are at the end of
......@@ -627,7 +627,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
if (natives == null) {
if (synthesize) {
String encoded = encodeDataFlavor(flav);
natives = new ArrayList(1);
natives = new ArrayList<>(1);
getFlavorToNative().put(flav, natives);
natives.add(encoded);
getNativesForFlavorCache.remove(flav);
......@@ -635,14 +635,14 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
List<DataFlavor> flavors = getNativeToFlavor().get(encoded);
if (flavors == null) {
flavors = new ArrayList(1);
flavors = new ArrayList<>(1);
getNativeToFlavor().put(encoded, flavors);
}
flavors.add(flav);
getFlavorsForNativeCache.remove(encoded);
getFlavorsForNativeCache.remove(null);
} else {
natives = new ArrayList(0);
natives = new ArrayList<>(0);
}
}
......@@ -675,21 +675,21 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
* @since 1.4
*/
public synchronized List<String> getNativesForFlavor(DataFlavor flav) {
List retval = null;
List<String> retval = null;
// Check cache, even for null flav
SoftReference ref = (SoftReference)getNativesForFlavorCache.get(flav);
SoftReference<List<String>> ref = getNativesForFlavorCache.get(flav);
if (ref != null) {
retval = (List)ref.get();
retval = ref.get();
if (retval != null) {
// Create a copy, because client code can modify the returned
// list.
return new ArrayList(retval);
return new ArrayList<>(retval);
}
}
if (flav == null) {
retval = new ArrayList<String>(getNativeToFlavor().keySet());
retval = new ArrayList<>(getNativeToFlavor().keySet());
} else if (disabledMappingGenerationKeys.contains(flav)) {
// In this case we shouldn't synthesize a native for this flavor,
// since its mappings were explicitly specified.
......@@ -699,7 +699,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
// For text/* flavors, flavor-to-native mappings specified in
// flavormap.properties are stored per flavor's base type.
if ("text".equals(flav.getPrimaryType())) {
retval = (List)getFlavorToNative().get(flav.mimeType.getBaseType());
retval = getAllNativesForType(flav.mimeType.getBaseType());
if (retval != null) {
// To prevent the List stored in the map from modification.
retval = new ArrayList(retval);
......@@ -707,15 +707,15 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
}
// Also include text/plain natives, but don't duplicate Strings
List textPlainList = (List)getFlavorToNative().get(TEXT_PLAIN_BASE_TYPE);
List<String> textPlainList = getAllNativesForType(TEXT_PLAIN_BASE_TYPE);
if (textPlainList != null && !textPlainList.isEmpty()) {
// To prevent the List stored in the map from modification.
// This also guarantees that removeAll() is supported.
textPlainList = new ArrayList(textPlainList);
textPlainList = new ArrayList<>(textPlainList);
if (retval != null && !retval.isEmpty()) {
// Use HashSet to get constant-time performance for search.
textPlainList.removeAll(new HashSet(retval));
textPlainList.removeAll(new HashSet<>(retval));
retval.addAll(textPlainList);
} else {
retval = textPlainList;
......@@ -728,7 +728,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
// In this branch it is guaranteed that natives explicitly
// listed for flav's MIME type were added with
// addUnencodedNativeForFlavor(), so they have lower priority.
List explicitList =
List<String> explicitList =
flavorToNativeLookup(flav, !SYNTHESIZE_IF_NOT_FOUND);
// flavorToNativeLookup() never returns null.
......@@ -736,14 +736,14 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
if (!explicitList.isEmpty()) {
// To prevent the List stored in the map from modification.
// This also guarantees that removeAll() is supported.
explicitList = new ArrayList(explicitList);
explicitList = new ArrayList<>(explicitList);
// Use HashSet to get constant-time performance for search.
explicitList.removeAll(new HashSet(retval));
explicitList.removeAll(new HashSet<>(retval));
retval.addAll(explicitList);
}
}
} else if (DataTransferer.isFlavorNoncharsetTextType(flav)) {
retval = (List)getFlavorToNative().get(flav.mimeType.getBaseType());
retval = getAllNativesForType(flav.mimeType.getBaseType());
if (retval == null || retval.isEmpty()) {
retval = flavorToNativeLookup(flav, SYNTHESIZE_IF_NOT_FOUND);
......@@ -751,7 +751,7 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
// In this branch it is guaranteed that natives explicitly
// listed for flav's MIME type were added with
// addUnencodedNativeForFlavor(), so they have lower priority.
List explicitList =
List<String> explicitList =
flavorToNativeLookup(flav, !SYNTHESIZE_IF_NOT_FOUND);
// flavorToNativeLookup() never returns null.
......@@ -759,10 +759,10 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
if (!explicitList.isEmpty()) {
// To prevent the List stored in the map from modification.
// This also guarantees that add/removeAll() are supported.
retval = new ArrayList(retval);
explicitList = new ArrayList(explicitList);
retval = new ArrayList<>(retval);
explicitList = new ArrayList<>(explicitList);
// Use HashSet to get constant-time performance for search.
explicitList.removeAll(new HashSet(retval));
explicitList.removeAll(new HashSet<>(retval));
retval.addAll(explicitList);
}
}
......@@ -770,9 +770,9 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
retval = flavorToNativeLookup(flav, SYNTHESIZE_IF_NOT_FOUND);
}
getNativesForFlavorCache.put(flav, new SoftReference(retval));
getNativesForFlavorCache.put(flav, new SoftReference<>(retval));
// Create a copy, because client code can modify the returned list.
return new ArrayList(retval);
return new ArrayList<>(retval);
}
/**
......@@ -809,11 +809,11 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
public synchronized List<DataFlavor> getFlavorsForNative(String nat) {
// Check cache, even for null nat
SoftReference ref = (SoftReference)getFlavorsForNativeCache.get(nat);
SoftReference<List<DataFlavor>> ref = getFlavorsForNativeCache.get(nat);
if (ref != null) {
ArrayList retval = (ArrayList)ref.get();
List<DataFlavor> retval = ref.get();
if (retval != null) {
return (List)retval.clone();
return new ArrayList<>(retval);
}
}
......@@ -859,16 +859,15 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
}
final ArrayList arrayList = new ArrayList(returnValue);
getFlavorsForNativeCache.put(nat, new SoftReference(arrayList));
return (List)arrayList.clone();
final List<DataFlavor> arrayList = new ArrayList<>(returnValue);
getFlavorsForNativeCache.put(nat, new SoftReference<>(arrayList));
return new ArrayList<>(arrayList);
}
private static LinkedHashSet<DataFlavor> convertMimeTypeToDataFlavors(
private static Set<DataFlavor> convertMimeTypeToDataFlavors(
final String baseType) {
final LinkedHashSet<DataFlavor> returnValue =
new LinkedHashSet<DataFlavor>();
final Set<DataFlavor> returnValue = new LinkedHashSet<>();
String subType = null;
......@@ -1009,11 +1008,11 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
flavor_list.toArray(flavors);
}
HashMap retval = new HashMap(flavors.length, 1.0f);
for (int i = 0; i < flavors.length; i++) {
List natives = getNativesForFlavor(flavors[i]);
String nat = (natives.isEmpty()) ? null : (String)natives.get(0);
retval.put(flavors[i], nat);
Map<DataFlavor, String> retval = new HashMap<>(flavors.length, 1.0f);
for (DataFlavor flavor : flavors) {
List<String> natives = getNativesForFlavor(flavor);
String nat = (natives.isEmpty()) ? null : natives.get(0);
retval.put(flavor, nat);
}
return retval;
......@@ -1054,12 +1053,11 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
native_list.toArray(natives);
}
HashMap retval = new HashMap(natives.length, 1.0f);
for (int i = 0; i < natives.length; i++) {
List flavors = getFlavorsForNative(natives[i]);
DataFlavor flav = (flavors.isEmpty())
? null : (DataFlavor)flavors.get(0);
retval.put(natives[i], flav);
Map<String, DataFlavor> retval = new HashMap<>(natives.length, 1.0f);
for (String aNative : natives) {
List<DataFlavor> flavors = getFlavorsForNative(aNative);
DataFlavor flav = (flavors.isEmpty())? null : flavors.get(0);
retval.put(aNative, flav);
}
return retval;
......@@ -1091,9 +1089,9 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
throw new NullPointerException("null arguments not permitted");
}
List natives = (List)getFlavorToNative().get(flav);
List<String> natives = getFlavorToNative().get(flav);
if (natives == null) {
natives = new ArrayList(1);
natives = new ArrayList<>(1);
getFlavorToNative().put(flav, natives);
} else if (natives.contains(nat)) {
return;
......@@ -1138,8 +1136,8 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
}
getFlavorToNative().remove(flav);
for (int i = 0; i < natives.length; i++) {
addUnencodedNativeForFlavor(flav, natives[i]);
for (String aNative : natives) {
addUnencodedNativeForFlavor(flav, aNative);
}
disabledMappingGenerationKeys.add(flav);
// Clear the cache to handle the case of empty natives.
......@@ -1171,9 +1169,9 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
throw new NullPointerException("null arguments not permitted");
}
List flavors = (List)getNativeToFlavor().get(nat);
List<DataFlavor> flavors = getNativeToFlavor().get(nat);
if (flavors == null) {
flavors = new ArrayList(1);
flavors = new ArrayList<>(1);
getNativeToFlavor().put(nat, flavors);
} else if (flavors.contains(flav)) {
return;
......@@ -1217,8 +1215,8 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
}
getNativeToFlavor().remove(nat);
for (int i = 0; i < flavors.length; i++) {
addFlavorForUnencodedNative(nat, flavors[i]);
for (DataFlavor flavor : flavors) {
addFlavorForUnencodedNative(nat, flavor);
}
disabledMappingGenerationKeys.add(nat);
// Clear the cache to handle the case of empty flavors.
......@@ -1321,4 +1319,18 @@ public final class SystemFlavorMap implements FlavorMap, FlavorTable {
? new DataFlavor(retval_str)
: null;
}
private List<String> getAllNativesForType(String type) {
List<String> retval = null;
for (DataFlavor dataFlavor : convertMimeTypeToDataFlavors(type)) {
List<String> natives = getFlavorToNative().get(dataFlavor);
if (!natives.isEmpty()) {
if (retval == null) {
retval = new ArrayList<>();
}
retval.addAll(natives);
}
}
return retval;
}
}
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