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- /*******************************************************************************
- * Copyright (c) 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v 2.0
- * which accompanies this distribution, and is available at
- * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
- package org.aspectj.ajdt.internal.core.builder;
-
- import java.io.ByteArrayInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.util.List;
-
- import org.aspectj.bridge.IMessageHandler;
- import org.aspectj.weaver.UnresolvedType;
- import org.aspectj.weaver.bcel.ClassPathManager;
- import org.aspectj.org.eclipse.jdt.core.compiler.CharOperation;
- import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader;
- import org.aspectj.org.eclipse.jdt.internal.compiler.env.IBinaryType;
- import org.aspectj.org.eclipse.jdt.internal.compiler.env.INameEnvironment;
- import org.aspectj.org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer;
-
- /**
- * @author colyer
- *
- * Provide a type lookup environment for the weaver, without having to convert
- * the various eclipse paths into their external form.
- */
- public class EclipseClassPathManager extends ClassPathManager {
-
- private INameEnvironment nameEnv;
-
- public EclipseClassPathManager(INameEnvironment env) {
- this.nameEnv = env;
- }
-
- // class path manager will be used by weaver across multiple compiles,
- // whereas a name environment may be constructed per-compile.
- public void setNameEnvironment(INameEnvironment env) {
- this.nameEnv = env;
- }
-
- /* (non-Javadoc)
- * @see org.aspectj.weaver.bcel.ClassPathManager#addPath(java.lang.String, org.aspectj.bridge.IMessageHandler)
- */
- public void addPath(String name, IMessageHandler handler) {
- throw new UnsupportedOperationException("Can't add paths to an *Eclipse*ClassPathManager.");
- }
-
- /* (non-Javadoc)
- * @see org.aspectj.weaver.bcel.ClassPathManager#find(org.aspectj.weaver.UnresolvedType)
- */
- public ClassFile find(UnresolvedType type) {
- ClassFile cf = null;
- String name = type.getName();
- if (name.endsWith(".class")) {
- name = name.substring(0,name.length() - ".class".length());
- }
- char[][] cname = CharOperation.splitOn('.',name.toCharArray());
- // TODO [j9] passing null client/module here...
- NameEnvironmentAnswer answer = nameEnv.findType(cname);
- if (answer == null || !answer.isBinaryType()) {
- return null;
- } else {
- IBinaryType binType = answer.getBinaryType();
- // XXX - but better than the alternative hacks
- if (binType instanceof ClassFileReader) {
- ClassFileReader cfr = (ClassFileReader) binType;
- cf = new ClassFileReaderBackedClassFile(cfr);
- } else {
- throw new IllegalArgumentException(
- "I'm only geared up to handle ClassFileReaders, and you gave me a " +
- binType.getClass().getName());
- }
- return cf;
- }
- }
- /* (non-Javadoc)
- * @see org.aspectj.weaver.bcel.ClassPathManager#getAllClassFiles()
- */
- public List getAllClassFiles() {
- throw new UnsupportedOperationException("I don't implement getAllClassFiles()");
- //return Collections.EMPTY_LIST;
- }
- /* (non-Javadoc)
- * @see java.lang.Object#toString()
- */
- public String toString() {
- StringBuilder buf = new StringBuilder("EclipseClassPathManager: ");
- buf.append(nameEnv.toString());
- return buf.toString();
- }
-
- private class ClassFileReaderBackedClassFile extends ClassPathManager.ClassFile {
-
- private ClassFileReader source;
- private InputStream is;
-
- public ClassFileReaderBackedClassFile(ClassFileReader cfr) {
- source = cfr;
- }
-
- /* (non-Javadoc)
- * @see org.aspectj.weaver.bcel.ClassPathManager.ClassFile#getInputStream()
- */
- public InputStream getInputStream() throws IOException {
- is = new ByteArrayInputStream(source.getReferenceBytes());
- return is;
- }
-
- public void close() {
- try {
- if (is!=null) is.close();
- } catch (IOException e) {
- // Should never happen !
- e.printStackTrace();
- }
- }
-
- /* (non-Javadoc)
- * @see org.aspectj.weaver.bcel.ClassPathManager.ClassFile#getPath()
- */
- public String getPath() {
- return new String(source.getFileName());
- }
- }
- }
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