import java.util.ArrayList;
import java.util.List;
-import org.apache.harmony.luni.internal.io.FileCanonPathCache;
+// import org.apache.harmony.luni.internal.io.FileCanonPathCache;
import org.apache.harmony.luni.util.DeleteOnExit;
import org.apache.harmony.luni.util.Msg;
import org.apache.harmony.luni.util.PriviAction;
public String getCanonicalPath() throws IOException {
byte[] result = properPath(false);
String absPath = Util.toUTF8String(result);
- String canonPath = FileCanonPathCache.get(absPath);
- if (canonPath != null) {
- return canonPath;
- }
+ // BEGIN android-removed
+ // caching the canonical path is completely bogus
+ // String canonPath = FileCanonPathCache.get(absPath);
+ // if (canonPath != null) {
+ // return canonPath;
+ // }
+ // END android-removed
+
if(separatorChar == '/') {
// resolve the full path first
result = resolveLink(result, result.length, false);
newResult[newLength] = 0;
newResult = getCanonImpl(newResult);
newLength = newResult.length;
- canonPath = Util.toUTF8String(newResult, 0, newLength);
- FileCanonPathCache.put(absPath, canonPath);
- return canonPath;
+
+ // BEGIN android-changed
+ // caching the canonical path is completely bogus
+ return Util.toUTF8String(newResult, 0, newLength);
+ // FileCanonPathCache.put(absPath, canonPath);
+ // return canonPath;
+ // END android-changed
}
/*
+++ /dev/null
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.harmony.luni.internal.io;
-
-import java.util.HashMap;
-import java.util.LinkedList;
-
-/**
- * A simple cache implementation for file's canonical path. The cache has fixed
- * size <code> CACHE_SIZE </code> and cached elements would be expired. If
- * <code>put<code> method is invoked when cache is full, the oldest element will be removed.
- *
- */
-public class FileCanonPathCache {
-
- static private class CacheElement {
- String canonicalPath;
-
- long timestamp;
-
- public CacheElement(String path) {
- this.canonicalPath = path;
- this.timestamp = System.currentTimeMillis();
- }
- }
-
- /**
- * Max elemnts could be hold in the cache.
- */
- public static final int CACHE_SIZE = 256;
-
- private static HashMap<String, CacheElement> cache = new HashMap<String, CacheElement>(
- CACHE_SIZE);
-
- /**
- * FIFO queue for tracking age of elements.
- */
- private static LinkedList<String> list = new LinkedList<String>();
-
- private static Object lock = new Object();
-
- /**
- * Expired time.
- */
- private static long timeout = 600000;
-
- /**
- * Retrieve element from cache.
- *
- * @param path
- * absolute path.
- * @return canonical path of <code>path</code> if it's in cache.
- *
- */
- public static String get(String path) {
- CacheElement element = null;
- synchronized (lock) {
- element = cache.get(path);
- }
-
- if (element == null) {
- return null;
- }
-
- long time = System.currentTimeMillis();
- if (time - element.timestamp > timeout) {
- // remove all elements older than this one
- synchronized (lock) {
- if (cache.get(path) != null) {
- String oldest = null;
- do {
- oldest = list.removeFirst();
- cache.remove(path);
- } while (!path.equals(oldest));
- }
- }
- return null;
- }
-
- return element.canonicalPath;
- }
-
- /**
- * Put element to cache.
- *
- * @param path
- * absolute path.
- * @param canonicalPath
- * the canonical path of <code>path</code>.
- */
- public static void put(String path, String canonicalPath) {
- CacheElement element = new CacheElement(canonicalPath);
- synchronized (lock) {
- if (cache.size() >= CACHE_SIZE) {
- // cache is full
- String oldest = list.removeFirst();
- cache.remove(oldest);
- }
- cache.put(path, element);
- list.addLast(path);
- }
- }
-
- /**
- * Remove all elements from cache.
- */
- public static void clear() {
- synchronized (lock) {
- cache.clear();
- list.clear();
- }
- }
-
- public static long getTimeout() {
- return timeout;
- }
-
- public static void setTimeout(long timeout) {
- FileCanonPathCache.timeout = timeout;
- }
-}
TestSuite suite = tests.TestSuiteFactory.createTestSuite("Tests for java.io");
suite.addTestSuite(BufferedReaderTest.class);
- suite.addTestSuite(FileCanonPathCacheTest.class);
suite.addTestSuite(FilePermissionTest.class);
suite.addTestSuite(FileTest.class);
suite.addTestSuite(InputStreamReaderTest.class);
+++ /dev/null
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.harmony.luni.tests.java.io;
-
-import java.io.File;
-
-import org.apache.harmony.luni.internal.io.FileCanonPathCache;
-
-import junit.framework.TestCase;
-
-public class FileCanonPathCacheTest extends TestCase {
-
- private static int DEFAULT_TIMEOUT = 600000;
-
- @Override
- public void setUp() throws Exception {
- FileCanonPathCache.clear();
- FileCanonPathCache.setTimeout(DEFAULT_TIMEOUT);
- }
-
- public void testGetSet() throws Exception {
- File file1 = new File("test/hello~1");
- assertNull(FileCanonPathCache.get(file1.getAbsolutePath()));
- FileCanonPathCache.put(file1.getAbsolutePath(), file1
- .getCanonicalPath());
- assertEquals(file1.getCanonicalPath(), FileCanonPathCache.get(file1
- .getAbsolutePath()));
-
- File file2 = new File("test/world~1");
- assertNull(FileCanonPathCache.get(file2.getAbsolutePath()));
- FileCanonPathCache.put(file2.getAbsolutePath(), file2
- .getCanonicalPath());
- assertEquals(file2.getCanonicalPath(), FileCanonPathCache.get(file2
- .getAbsolutePath()));
-
- assertNull(FileCanonPathCache.get("notexist"));
- }
-
- public void testGetTimeout01() throws Exception {
- FileCanonPathCache.setTimeout(10);
-
- File file1 = new File("test/hello~1");
- assertNull(FileCanonPathCache.get(file1.getAbsolutePath()));
- FileCanonPathCache.put(file1.getAbsolutePath(), file1
- .getCanonicalPath());
- Thread.sleep(50);
- assertNull(FileCanonPathCache.get(file1.getAbsolutePath()));
- }
-
- public void testGetTimeout02() throws Exception {
- FileCanonPathCache.setTimeout(10);
-
- File file1 = new File("test/hello~1");
- assertNull(FileCanonPathCache.get(file1.getAbsolutePath()));
- FileCanonPathCache.put(file1.getAbsolutePath(), file1
- .getCanonicalPath());
- File file2 = new File("test/hello~2");
- assertNull(FileCanonPathCache.get(file2.getAbsolutePath()));
- FileCanonPathCache.put(file2.getAbsolutePath(), file2
- .getCanonicalPath());
- File file3 = new File("test/hello~3");
- assertNull(FileCanonPathCache.get(file3.getAbsolutePath()));
- FileCanonPathCache.put(file3.getAbsolutePath(), file3
- .getCanonicalPath());
- File file4 = new File("test/hello~4");
- assertNull(FileCanonPathCache.get(file4.getAbsolutePath()));
- FileCanonPathCache.put(file4.getAbsolutePath(), file4
- .getCanonicalPath());
- File file5 = new File("test/hello~5");
- assertNull(FileCanonPathCache.get(file5.getAbsolutePath()));
- FileCanonPathCache.put(file5.getAbsolutePath(), file5
- .getCanonicalPath());
-
- Thread.sleep(50);
-
- assertNull(FileCanonPathCache.get(file1.getAbsolutePath()));
- assertNull(FileCanonPathCache.get(file2.getAbsolutePath()));
- assertNull(FileCanonPathCache.get(file3.getAbsolutePath()));
- assertNull(FileCanonPathCache.get(file4.getAbsolutePath()));
- assertNull(FileCanonPathCache.get(file5.getAbsolutePath()));
- }
-
- public void testCacheFull() throws Exception {
- int cacheSize = FileCanonPathCache.CACHE_SIZE;
- File[] files = new File[cacheSize];
- for (int i = 0; i < cacheSize; ++i) {
- files[i] = new File("test/world" + i);
- FileCanonPathCache.put(files[i].getAbsolutePath(), files[i]
- .getCanonicalPath());
- }
-
- for (int i = cacheSize; i < files.length; ++i) {
- assertEquals(files[i - cacheSize].getCanonicalPath(),
- FileCanonPathCache.get(files[i - cacheSize]
- .getAbsolutePath()));
- files[i] = new File("test/world" + i);
- FileCanonPathCache.put(files[i].getAbsolutePath(), files[i]
- .getCanonicalPath());
- assertEquals(files[i].getCanonicalPath(), FileCanonPathCache
- .get(files[i].getAbsolutePath()));
- assertNull(FileCanonPathCache.get(files[i - cacheSize]
- .getAbsolutePath()));
- }
- }
-}
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