| /* |
| * Copyright (C) 2010 Google Inc. |
| * |
| * Licensed 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 com.google.clearsilver.jsilver.data; |
| |
| import com.google.clearsilver.jsilver.exceptions.JSilverBadSyntaxException; |
| import com.google.clearsilver.jsilver.resourceloader.ResourceLoader; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.Reader; |
| |
| /** |
| * Loads data in Hierarchical Data Format (HDF) into Data objects. |
| */ |
| public class HDFDataFactory implements DataFactory { |
| private final Parser hdfParser; |
| private final boolean ignoreAttributes; |
| |
| public HDFDataFactory(boolean ignoreAttributes) { |
| this(ignoreAttributes, new NoOpStringInternStrategy()); |
| } |
| |
| public HDFDataFactory(boolean ignoreAttributes, StringInternStrategy stringInternStrategy) { |
| this(NewHdfParser.newFactory(stringInternStrategy), ignoreAttributes); |
| } |
| |
| public HDFDataFactory(ParserFactory hdfParserFactory, boolean ignoreAttributes) { |
| this.ignoreAttributes = ignoreAttributes; |
| this.hdfParser = hdfParserFactory.newInstance(); |
| } |
| |
| @Override |
| public Data createData() { |
| return new DefaultData(); |
| } |
| |
| @Override |
| public void loadData(final String dataFileName, ResourceLoader resourceLoader, Data output) |
| throws JSilverBadSyntaxException, IOException { |
| Reader reader = resourceLoader.open(dataFileName); |
| if (reader == null) { |
| throw new FileNotFoundException(dataFileName); |
| } |
| try { |
| hdfParser.parse(reader, output, new Parser.ErrorHandler() { |
| public void error(int line, String lineContent, String fileName, String errorMessage) { |
| throw new JSilverBadSyntaxException("HDF parsing error : '" + errorMessage + "'", |
| lineContent, fileName, line, JSilverBadSyntaxException.UNKNOWN_POSITION, null); |
| } |
| }, resourceLoader, dataFileName, ignoreAttributes); |
| } finally { |
| resourceLoader.close(reader); |
| } |
| } |
| |
| @Override |
| public Data loadData(String dataFileName, ResourceLoader resourceLoader) throws IOException { |
| Data result = createData(); |
| loadData(dataFileName, resourceLoader, result); |
| return result; |
| } |
| |
| @Override |
| public Parser getParser() { |
| return hdfParser; |
| } |
| } |