| /* |
| * |
| * 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.FileNotFoundException; |
| import java.lang.ref.SoftReference; |
| import java.util.List; |
| |
| import org.apache.commons.io.IOUtils; |
| |
| import org.apache.royale.compiler.filespecs.IFileSpecification; |
| import org.apache.royale.compiler.internal.mxml.MXMLData; |
| import org.apache.royale.compiler.internal.parsing.mxml.MXMLToken; |
| import org.apache.royale.compiler.internal.parsing.mxml.MXMLTokenizer; |
| |
| /** |
| * Concurrent cache for parsed MXML models. The cache is a list of key-value pairs. |
| * The key is an {@code IFileSpecificaton} for an MXML file. |
| * The value is a {@link SoftReference} to a DOM-like {@link MXMLData} object. |
| */ |
| public class MXMLDataCache extends ConcurrentCacheStoreBase<MXMLData> |
| { |
| private static class MXMLDataCacheKey extends CacheStoreKeyBase |
| { |
| public MXMLDataCacheKey(IFileSpecification fileSpec) |
| { |
| assert fileSpec != null; |
| this.fileSpec = fileSpec; |
| } |
| |
| private IFileSpecification fileSpec; // non-null |
| |
| @Override |
| public String generateKey() |
| { |
| return String.valueOf(fileSpec.isOpenDocument()) + ":" + fileSpec.getPath(); |
| } |
| } |
| |
| public static MXMLDataCacheKey createKey(IFileSpecification fileSpec) |
| { |
| return new MXMLDataCacheKey(fileSpec); |
| } |
| |
| /** |
| * Constructor. |
| */ |
| public MXMLDataCache() |
| { |
| super(); |
| } |
| |
| /** |
| * Get the {@code MXMLData} to be associated with the key. |
| * |
| * @param key The key is an {@code MXMLDataCacheKey} object, |
| * which encapsulates an {@code IFileSpecification} for an MXML file. |
| */ |
| @Override |
| protected MXMLData createEntryValue(CacheStoreKeyBase key) |
| { |
| final IFileSpecification fileSpec = ((MXMLDataCacheKey)key).fileSpec; |
| |
| // Tokenize the MXML file. |
| final MXMLTokenizer tokenizer = new MXMLTokenizer(fileSpec); |
| try |
| { |
| List<MXMLToken> tokens = tokenizer.parseTokens(fileSpec.createReader()); |
| |
| // Build tags and attributes from the tokens. |
| final MXMLData mxmlData = new MXMLData(tokens, tokenizer.getPrefixMap(), fileSpec); |
| if (tokenizer.hasTokenizationProblems()) |
| mxmlData.getProblems().addAll(tokenizer.getTokenizationProblems()); |
| return mxmlData; |
| } |
| catch (FileNotFoundException e) |
| { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| return null; |
| } |
| finally |
| { |
| IOUtils.closeQuietly(tokenizer); |
| } |
| } |
| } |