| /* |
| * |
| * 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.royale.compiler.internal.caches; |
| |
| import java.io.IOException; |
| import java.lang.ref.SoftReference; |
| import java.util.Collection; |
| |
| import org.apache.royale.compiler.caches.IFileScopeCache; |
| import org.apache.royale.compiler.internal.abc.ABCScopeBuilder; |
| import org.apache.royale.compiler.internal.scopes.ASFileScope; |
| import org.apache.royale.compiler.internal.scopes.SWCFileScopeProvider; |
| import org.apache.royale.compiler.scopes.IASScope; |
| import org.apache.royale.swc.ISWC; |
| import org.apache.royale.swc.ISWCScript; |
| import org.apache.royale.swc.SWCManager; |
| import org.apache.royale.swf.ITagContainer; |
| import org.apache.royale.swf.tags.DoABCTag; |
| |
| /** |
| * Each {@code <script>} tag maps to a {@code DoABC} tag in the library |
| * SWF. The tag contains an ABC script which has a top-level file scope with one |
| * or many public definitions inside. The {@code FileScopeCache} is a table of |
| * key-value pairs. The key is a string in the form: {@code swc/library/script}. |
| * The value is a {@link SoftReference} to a collection of {@link ASFileScope}s. |
| */ |
| public class FileScopeCache extends ConcurrentCacheStoreBase<Collection<IASScope>> implements IFileScopeCache |
| { |
| |
| /** |
| * Key object for {@code FileScopeCache}. It has 3 properties: |
| * <ol> |
| * <li>absolute path to a SWC file</li> |
| * <li>library path - relative to the root of the SWC file archive</li> |
| * <li>script name - script in the library</li> |
| * </ol> |
| */ |
| protected static class FileScopeCacheKey extends SWFCache.SWFInSWCCacheKey |
| { |
| protected String scriptName; // non-null |
| |
| @Override |
| public String generateKey() |
| { |
| return String.format( |
| "%s:%s:%s", |
| swc.getSWCFile().getAbsolutePath(), |
| swfPath, |
| scriptName).intern(); |
| } |
| } |
| |
| /** |
| * Factory method for creating a key object for {@code SWCCache}. |
| * |
| * @param swc SWC file (optional) |
| * @param librarySWFPath path to a library SWF file |
| * @return key |
| */ |
| public static FileScopeCacheKey createKey(ISWC swc, String librarySWFPath, ISWCScript script) |
| { |
| final FileScopeCacheKey key = new FileScopeCacheKey(); |
| key.swc = swc; |
| key.swfPath = librarySWFPath; |
| key.scriptName = script.getName(); |
| return key; |
| } |
| |
| public FileScopeCache(SWCManager swcManager) |
| { |
| super(); |
| this.swcManager = swcManager; |
| } |
| |
| private final SWCManager swcManager; |
| |
| /** |
| * Get the {@link ASFileScope}s associated with the key. |
| * |
| * @param key a key is a string of pattern: <code>{path/to/file.swc: |
| */ |
| @Override |
| protected Collection<IASScope> createEntryValue(CacheStoreKeyBase key) |
| { |
| if (!(key instanceof FileScopeCacheKey)) |
| throw new IllegalArgumentException("expect FileScopeCacheKey but got " + key.getClass().getSimpleName()); |
| |
| final FileScopeCacheKey fileScopeCacheKey = (FileScopeCacheKey)key; |
| final CacheStoreKeyBase swfCacheKey = SWFCache.createKey(fileScopeCacheKey.swc, fileScopeCacheKey.swfPath); |
| final ITagContainer tags = ((SWFCache)swcManager.getSWFCache()).get(swfCacheKey); |
| |
| final DoABCTag abcTag = SWFCache.findDoABCTagByName(tags, fileScopeCacheKey.scriptName); |
| if (abcTag != null) |
| { |
| try |
| { |
| final ABCScopeBuilder abcScopeBuilder = new ABCScopeBuilder( |
| swcManager.getWorkspace(), |
| abcTag.getABCData(), |
| fileScopeCacheKey.swc.getSWCFile().getCanonicalPath(), |
| SWCFileScopeProvider.getInstance()); |
| return abcScopeBuilder.build(); |
| } |
| catch (IOException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| else |
| { |
| throw new IllegalStateException("can't create entry in FileScopeCache for key: " + key.toString()); |
| } |
| } |
| |
| } |