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authorRoozbeh Pournader <roozbeh@google.com>2015-10-15 00:18:36 +0000
committerAndroid (Google) Code Review <android-gerrit@google.com>2015-10-15 00:18:36 +0000
commit63aa02e47fa0fdd877b9fde7f1f6eda75b645f92 (patch)
tree8fe641e98c9dc62386a23919cf263794151062f0 /core/java/android/text
parent2eac005bbfc94a774c0a3f870fd393a3e7389f8c (diff)
parent35e026929b10bf05c4c78fce6f05d7569972c5cb (diff)
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Merge "Load binary hyphen data files" into mnc-dr-dev
Diffstat (limited to 'core/java/android/text')
-rw-r--r--core/java/android/text/Hyphenator.java34
-rw-r--r--core/java/android/text/StaticLayout.java3
2 files changed, 26 insertions, 11 deletions
diff --git a/core/java/android/text/Hyphenator.java b/core/java/android/text/Hyphenator.java
index 1665c75..f2b6041 100644
--- a/core/java/android/text/Hyphenator.java
+++ b/core/java/android/text/Hyphenator.java
@@ -16,15 +16,17 @@
package android.text;
-import com.android.internal.annotations.GuardedBy;
-
import android.annotation.Nullable;
import android.util.Log;
-import libcore.io.IoUtils;
+import com.android.internal.annotations.GuardedBy;
import java.io.File;
import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.ByteBuffer;
+import java.nio.MappedByteBuffer;
+import java.nio.channels.FileChannel;
import java.util.HashMap;
import java.util.Locale;
@@ -45,12 +47,18 @@ public class Hyphenator {
@GuardedBy("sLock")
final static HashMap<Locale, Hyphenator> sMap = new HashMap<Locale, Hyphenator>();
- final static Hyphenator sEmptyHyphenator = new Hyphenator(StaticLayout.nLoadHyphenator(""));
+ final static Hyphenator sEmptyHyphenator =
+ new Hyphenator(StaticLayout.nLoadHyphenator(null, 0), null);
final private long mNativePtr;
- private Hyphenator(long nativePtr) {
+ // We retain a reference to the buffer to keep the memory mapping valid
+ @SuppressWarnings("unused")
+ final private ByteBuffer mBuffer;
+
+ private Hyphenator(long nativePtr, ByteBuffer b) {
mNativePtr = nativePtr;
+ mBuffer = b;
}
public long getNativePtr() {
@@ -94,12 +102,18 @@ public class Hyphenator {
}
private static Hyphenator loadHyphenator(String languageTag) {
- String patternFilename = "hyph-"+languageTag.toLowerCase(Locale.US)+".pat.txt";
+ String patternFilename = "hyph-" + languageTag.toLowerCase(Locale.US) + ".hyb";
File patternFile = new File(getSystemHyphenatorLocation(), patternFilename);
try {
- String patternData = IoUtils.readFileAsString(patternFile.getAbsolutePath());
- long nativePtr = StaticLayout.nLoadHyphenator(patternData);
- return new Hyphenator(nativePtr);
+ RandomAccessFile f = new RandomAccessFile(patternFile, "r");
+ try {
+ FileChannel fc = f.getChannel();
+ MappedByteBuffer buf = fc.map(FileChannel.MapMode.READ_ONLY, 0, fc.size());
+ long nativePtr = StaticLayout.nLoadHyphenator(buf, 0);
+ return new Hyphenator(nativePtr, buf);
+ } finally {
+ f.close();
+ }
} catch (IOException e) {
Log.e(TAG, "error loading hyphenation " + patternFile, e);
return null;
@@ -152,7 +166,7 @@ public class Hyphenator {
sMap.put(null, null);
// TODO: replace this with a discovery-based method that looks into /system/usr/hyphen-data
- String[] availableLanguages = {"en-US", "eu", "hu", "hy", "nb", "nn", "sa", "und-Ethi"};
+ String[] availableLanguages = {"en-US", "eu", "hu", "hy", "nb", "nn", "und-Ethi"};
for (int i = 0; i < availableLanguages.length; i++) {
String languageTag = availableLanguages[i];
Hyphenator h = loadHyphenator(languageTag);
diff --git a/core/java/android/text/StaticLayout.java b/core/java/android/text/StaticLayout.java
index bd1ad79..b0b08db 100644
--- a/core/java/android/text/StaticLayout.java
+++ b/core/java/android/text/StaticLayout.java
@@ -29,6 +29,7 @@ import android.util.Pools.SynchronizedPool;
import com.android.internal.util.ArrayUtils;
import com.android.internal.util.GrowingArrayUtils;
+import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.Locale;
@@ -1244,7 +1245,7 @@ public class StaticLayout extends Layout {
private static native void nFreeBuilder(long nativePtr);
private static native void nFinishBuilder(long nativePtr);
- /* package */ static native long nLoadHyphenator(String patternData);
+ /* package */ static native long nLoadHyphenator(ByteBuffer buf, int offset);
private static native void nSetLocale(long nativePtr, String locale, long nativeHyphenator);