| /******************************************************************************* |
| * Copyright (c) 2006, 2011 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Walter Harley - Patch for ensuring the parent folders are created |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.internal.compiler.apt.util; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.FileReader; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.Reader; |
| import java.io.Writer; |
| import java.net.URI; |
| import java.nio.charset.Charset; |
| |
| import javax.lang.model.element.Modifier; |
| import javax.lang.model.element.NestingKind; |
| import javax.tools.SimpleJavaFileObject; |
| |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants; |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader; |
| import org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException; |
| |
| /** |
| * Implementation of a Java file object that corresponds to a file on the file system |
| */ |
| public class EclipseFileObject extends SimpleJavaFileObject { |
| private File f; |
| private Charset charset; |
| private boolean parentsExist; // parent directories exist |
| |
| public EclipseFileObject(String className, URI uri, Kind kind, Charset charset) { |
| super(uri, kind); |
| this.f = new File(this.uri); |
| this.charset = charset; |
| this.parentsExist = false; |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.JavaFileObject#getAccessLevel() |
| */ |
| public Modifier getAccessLevel() { |
| // cannot express multiple modifier |
| if (getKind() != Kind.CLASS) { |
| return null; |
| } |
| ClassFileReader reader = null; |
| try { |
| reader = ClassFileReader.read(this.f); |
| } catch (ClassFormatException e) { |
| // ignore |
| } catch (IOException e) { |
| // ignore |
| } |
| if (reader == null) { |
| return null; |
| } |
| final int accessFlags = reader.accessFlags(); |
| if ((accessFlags & ClassFileConstants.AccPublic) != 0) { |
| return Modifier.PUBLIC; |
| } |
| if ((accessFlags & ClassFileConstants.AccAbstract) != 0) { |
| return Modifier.ABSTRACT; |
| } |
| if ((accessFlags & ClassFileConstants.AccFinal) != 0) { |
| return Modifier.FINAL; |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.JavaFileObject#getNestingKind() |
| */ |
| public NestingKind getNestingKind() { |
| switch(kind) { |
| case SOURCE : |
| return NestingKind.TOP_LEVEL; |
| case CLASS : |
| ClassFileReader reader = null; |
| try { |
| reader = ClassFileReader.read(this.f); |
| } catch (ClassFormatException e) { |
| // ignore |
| } catch (IOException e) { |
| // ignore |
| } |
| if (reader == null) { |
| return null; |
| } |
| if (reader.isAnonymous()) { |
| return NestingKind.ANONYMOUS; |
| } |
| if (reader.isLocal()) { |
| return NestingKind.LOCAL; |
| } |
| if (reader.isMember()) { |
| return NestingKind.MEMBER; |
| } |
| return NestingKind.TOP_LEVEL; |
| default: |
| return null; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#delete() |
| */ |
| public boolean delete() { |
| return this.f.delete(); |
| } |
| |
| public boolean equals(Object o) { |
| if (!(o instanceof EclipseFileObject)) { |
| return false; |
| } |
| EclipseFileObject eclipseFileObject = (EclipseFileObject) o; |
| return eclipseFileObject.toUri().equals(this.uri); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#getCharContent(boolean) |
| */ |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException { |
| return Util.getCharContents(this, ignoreEncodingErrors, org.eclipse.jdt.internal.compiler.util.Util.getFileByteContent(this.f), this.charset.name()); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#getLastModified() |
| */ |
| public long getLastModified() { |
| return this.f.lastModified(); |
| } |
| |
| public String getName() { |
| return this.f.getPath(); |
| } |
| |
| public int hashCode() { |
| return f.hashCode(); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openInputStream() |
| */ |
| public InputStream openInputStream() throws IOException { |
| // TODO (olivier) should be used buffered input stream |
| return new FileInputStream(this.f); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openOutputStream() |
| */ |
| public OutputStream openOutputStream() throws IOException { |
| ensureParentDirectoriesExist(); |
| return new FileOutputStream(this.f); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openReader(boolean) |
| */ |
| public Reader openReader(boolean ignoreEncodingErrors) throws IOException { |
| return new FileReader(this.f); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openWriter() |
| */ |
| public Writer openWriter() throws IOException { |
| ensureParentDirectoriesExist(); |
| return new FileWriter(this.f); |
| } |
| |
| @Override |
| public String toString() { |
| return this.f.getAbsolutePath(); |
| } |
| |
| private void ensureParentDirectoriesExist() throws IOException { |
| if (!this.parentsExist) { |
| File parent = f.getParentFile(); |
| if (parent != null && !parent.exists()) { |
| if (!parent.mkdirs()) { |
| // could have been concurrently created |
| if (!parent.exists() || !parent.isDirectory()) |
| throw new IOException("Unable to create parent directories for " + f); //$NON-NLS-1$ |
| } |
| } |
| this.parentsExist = true; |
| } |
| } |
| |
| |
| } |