/*******************************************************************************
* Copyright (c) 2000, 2009 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
*******************************************************************************/
package org.eclipse.che.ide.ext.java.jdt.internal.core;
import org.eclipse.che.ide.ext.java.jdt.core.compiler.CharOperation;
import org.eclipse.che.ide.ext.java.jdt.internal.compiler.env.ICompilationUnit;
import org.eclipse.che.ide.ext.java.jdt.internal.compiler.util.Util;
/**
* A basic implementation of <code>ICompilationUnit</code> for use in the <code>SourceMapper</code>.
*
* @see ICompilationUnit
*/
public class BasicCompilationUnit implements ICompilationUnit {
protected char[] contents;
// Note that if this compiler ICompilationUnit's content is known in advance, the fileName is not used to retrieve this
// content.
// Instead it is used to keep enough information to recreate the IJavaElement corresponding to this compiler ICompilationUnit.
// Thus the fileName can be a path to a .class file, or even a path in a .jar to a .class file.
// (e.g. /P/lib/mylib.jar|org/eclipse/test/X.class)
protected char[] fileName;
protected char[][] packageName;
protected char[] mainTypeName;
protected String encoding;
public BasicCompilationUnit(char[] contents, char[][] packageName, String fileName) {
this.contents = contents;
this.fileName = fileName.toCharArray();
this.packageName = packageName;
}
// public BasicCompilationUnit(char[] contents, char[][] packageName, String fileName, IJavaElement javaElement)
// {
// this(contents, packageName, fileName);
// initEncoding(javaElement);
// }
// /*
// * Initialize compilation unit encoding.
// * If we have a project, then get file name corresponding IFile and retrieve its encoding using
// * new API for encoding.
// * In case of a class file, then go through project in order to let the possibility to retrieve
// * a corresponding source file resource.
// * If we have a compilation unit, then get encoding from its resource directly...
// */
// private void initEncoding(IJavaElement javaElement)
// {
// if (javaElement != null)
// {
// this.encoding = "UTF-8";
// }
// else
// {
// this.encoding = null;
// }
// }
public char[] getContents() {
if (this.contents != null)
return this.contents; // answer the cached source
return CharOperation.NO_CHAR;
}
/** @see org.eclipse.che.ide.ext.java.jdt.internal.compiler.env.IDependent#getFileName() */
public char[] getFileName() {
return this.fileName;
}
public char[] getMainTypeName() {
if (this.mainTypeName == null) {
int start = CharOperation.lastIndexOf('/', this.fileName) + 1;
if (start == 0 || start < CharOperation.lastIndexOf('\\', this.fileName))
start = CharOperation.lastIndexOf('\\', this.fileName) + 1;
int separator = CharOperation.indexOf('|', this.fileName) + 1;
if (separator > start) // case of a .class file in a default package in a jar
start = separator;
int end = CharOperation.lastIndexOf('$', this.fileName);
if (end == -1 || !Util.isClassFileName(this.fileName)) {
end = CharOperation.lastIndexOf('.', this.fileName);
if (end == -1)
end = this.fileName.length;
}
this.mainTypeName = CharOperation.subarray(this.fileName, start, end);
}
return this.mainTypeName;
}
public char[][] getPackageName() {
return this.packageName;
}
public String toString() {
return "CompilationUnit: " + new String(this.fileName); //$NON-NLS-1$
}
}