| /* |
| * |
| * 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.filespecs; |
| |
| import static org.apache.royale.compiler.filespecs.CombinedFile.getBOM; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedReader; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| |
| import org.apache.royale.compiler.filespecs.CombinedFile.BOM; |
| |
| /** |
| * A file specification that reads the content of the file from the file itself. |
| */ |
| public class FileSpecification extends BaseFileSpecification implements IBinaryFileSpecification { |
| /** |
| * Constructor. |
| * |
| * @param path |
| * The path of the file. |
| */ |
| public FileSpecification(String path) { |
| super(path); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((path == null) ? 0 : path.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (!(obj instanceof BaseFileSpecification)) |
| return false; |
| BaseFileSpecification other = (BaseFileSpecification) obj; |
| if (path == null) { |
| if (other.path != null) |
| return false; |
| } else if (!path.equals(other.path)) |
| return false; |
| return true; |
| } |
| |
| @Override |
| public Reader createReader() throws FileNotFoundException { |
| File fileHandle = getFileHandle(); |
| if (!fileHandle.exists()) |
| throw new FileNotFoundException(fileHandle.getAbsolutePath()); |
| try { |
| return createNIOReader(); |
| } |
| catch (FileNotFoundException e) |
| { |
| throw e; |
| } |
| catch (final IOException e) |
| { |
| // could not open the file, but the file seems to exist. |
| // we can either return null, or maybe a reader that pretends |
| // the file is empty or throws an IOException as soon as you try to read |
| // from it. |
| |
| // We'll return a Reader that just throws the above IOException when |
| // someone tries to read some characters. |
| return new Reader() |
| { |
| @Override |
| public int read(char[] cbuf, int off, int len) throws IOException |
| { |
| throw e; |
| } |
| |
| @Override |
| public void close() throws IOException |
| { |
| } |
| }; |
| } |
| } |
| |
| private Reader createNIOReader() throws IOException { |
| final File file = getFileHandle(); |
| |
| // Skip BOM header. |
| final BufferedInputStream strm = new BufferedInputStream(new FileInputStream(file)); |
| final BOM bom = getBOM(strm); |
| strm.skip(bom.pattern.length); |
| |
| final Reader reader = new BufferedReader( |
| new InputStreamReader(strm, bom.charset)); |
| return reader; |
| } |
| |
| @Override |
| public InputStream createInputStream() throws FileNotFoundException |
| { |
| return new BufferedInputStream(new FileInputStream(getFileHandle())); |
| } |
| } |