| /******************************************************************************* |
| * Copyright (c) 2006, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.aspectj.org.eclipse.jdt.internal.compiler.apt.util; |
| |
| import java.io.File; |
| 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.net.URISyntaxException; |
| import java.nio.charset.Charset; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| |
| import javax.lang.model.element.Modifier; |
| import javax.lang.model.element.NestingKind; |
| import javax.tools.JavaFileObject; |
| |
| import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants; |
| import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader; |
| import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException; |
| |
| /** |
| * Implementation of a Java file object that corresponds to an entry in a zip/jar file |
| */ |
| public class ArchiveFileObject implements JavaFileObject { |
| protected String entryName; |
| protected File file; |
| protected ZipFile zipFile; |
| protected Charset charset; |
| |
| public ArchiveFileObject(File file, String entryName, Charset charset) { |
| this.entryName = entryName; |
| this.file = file; |
| this.charset = charset; |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| if (this.zipFile != null) { |
| try { |
| this.zipFile.close(); |
| } catch (IOException e) { |
| // ignore |
| } |
| } |
| super.finalize(); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.JavaFileObject#getAccessLevel() |
| */ |
| @Override |
| public Modifier getAccessLevel() { |
| // cannot express multiple modifier |
| if (getKind() != Kind.CLASS) { |
| return null; |
| } |
| ClassFileReader reader = getClassReader(); |
| |
| 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; |
| } |
| |
| protected ClassFileReader getClassReader() { |
| ClassFileReader reader = null; |
| try { |
| try (ZipFile zip = new ZipFile(this.file)) { |
| reader = ClassFileReader.read(zip, this.entryName); |
| } |
| } catch (ClassFormatException e) { |
| // ignore |
| } catch (IOException e) { |
| // ignore |
| } |
| return reader; |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.JavaFileObject#getKind() |
| */ |
| @Override |
| public Kind getKind() { |
| String name = this.entryName.toLowerCase(); |
| if (name.endsWith(Kind.CLASS.extension)) { |
| return Kind.CLASS; |
| } else if (name.endsWith(Kind.SOURCE.extension)) { |
| return Kind.SOURCE; |
| } else if (name.endsWith(Kind.HTML.extension)) { |
| return Kind.HTML; |
| } |
| return Kind.OTHER; |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.JavaFileObject#getNestingKind() |
| */ |
| @Override |
| public NestingKind getNestingKind() { |
| switch(getKind()) { |
| case SOURCE : |
| return NestingKind.TOP_LEVEL; |
| case CLASS : |
| ClassFileReader reader = getClassReader(); |
| 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.JavaFileObject#isNameCompatible(java.lang.String, javax.tools.JavaFileObject.Kind) |
| */ |
| @Override |
| public boolean isNameCompatible(String simpleName, Kind kind) { |
| return this.entryName.endsWith(simpleName + kind.extension); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#delete() |
| */ |
| @Override |
| public boolean delete() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof ArchiveFileObject)) { |
| return false; |
| } |
| ArchiveFileObject archiveFileObject = (ArchiveFileObject) o; |
| return archiveFileObject.toUri().equals(this.toUri()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return this.toUri().hashCode(); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#getCharContent(boolean) |
| */ |
| @Override |
| public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException { |
| if (getKind() == Kind.SOURCE) { |
| try (ZipFile zipFile2 = new ZipFile(this.file)) { |
| ZipEntry zipEntry = zipFile2.getEntry(this.entryName); |
| return Util.getCharContents(this, ignoreEncodingErrors, org.aspectj.org.eclipse.jdt.internal.compiler.util.Util.getZipEntryByteContent(zipEntry, zipFile2), this.charset.name()); |
| } |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#getLastModified() |
| */ |
| @Override |
| public long getLastModified() { |
| try (ZipFile zip = new ZipFile(this.file)) { |
| ZipEntry zipEntry = zip.getEntry(this.entryName); |
| return zipEntry.getTime(); // looks the closest from the last modification |
| } catch(IOException e) { |
| // ignore |
| } |
| return 0; |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#getName() |
| */ |
| @Override |
| public String getName() { |
| return this.entryName; |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openInputStream() |
| */ |
| @Override |
| public InputStream openInputStream() throws IOException { |
| if (this.zipFile == null) { |
| this.zipFile = new ZipFile(this.file); |
| } |
| ZipEntry zipEntry = this.zipFile.getEntry(this.entryName); |
| return this.zipFile.getInputStream(zipEntry); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openOutputStream() |
| */ |
| @Override |
| public OutputStream openOutputStream() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openReader(boolean) |
| */ |
| @Override |
| public Reader openReader(boolean ignoreEncodingErrors) throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#openWriter() |
| */ |
| @Override |
| public Writer openWriter() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /* (non-Javadoc) |
| * @see javax.tools.FileObject#toUri() |
| */ |
| @Override |
| public URI toUri() { |
| try { |
| return new URI("jar:" + this.file.toURI().getPath() + "!" + this.entryName); //$NON-NLS-1$//$NON-NLS-2$ |
| } catch (URISyntaxException e) { |
| return null; |
| } |
| } |
| |
| |
| @Override |
| public String toString() { |
| return this.file.getAbsolutePath() + "[" + this.entryName + "]";//$NON-NLS-1$//$NON-NLS-2$ |
| } |
| } |