/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package net.sourceforge.phpdt.internal.core;
import java.io.File;
import java.io.IOException;
import net.sourceforge.phpdt.core.IJavaElement;
import net.sourceforge.phpdt.core.IJavaProject;
import net.sourceforge.phpdt.core.compiler.CharOperation;
import net.sourceforge.phpdt.internal.compiler.env.ICompilationUnit;
import net.sourceforge.phpdt.internal.compiler.util.Util;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
/**
* A basic implementation of ICompilationUnit
* for use in the SourceMapper
.
* @see ICompilationUnit
*/
public class BasicCompilationUnit implements ICompilationUnit {
protected char[] contents;
protected char[] fileName;
protected char[][] packageName;
protected char[] mainTypeName;
protected String encoding;
// public BasicCompilationUnit(char[] contents, char[][] packageName, String fileName, String encoding) {
// this.contents = contents;
// this.fileName = fileName.toCharArray();
// this.packageName = packageName;
//
// int start = fileName.lastIndexOf("/") + 1; //$NON-NLS-1$
// if (start == 0 || start < fileName.lastIndexOf("\\")) //$NON-NLS-1$
// start = fileName.lastIndexOf("\\") + 1; //$NON-NLS-1$
//
// int end = fileName.lastIndexOf("."); //$NON-NLS-1$
// if (end == -1)
// end = fileName.length();
//
// this.mainTypeName = fileName.substring(start, end).toCharArray();
// this.encoding = encoding;
// }
public BasicCompilationUnit(char[] contents, char[][] packageName, String fileName) {
this.contents = contents;
this.fileName = fileName.toCharArray();
this.packageName = packageName;
int start = fileName.lastIndexOf("/") + 1; //$NON-NLS-1$
if (start == 0 || start < fileName.lastIndexOf("\\")) //$NON-NLS-1$
start = fileName.lastIndexOf("\\") + 1; //$NON-NLS-1$
int end = fileName.lastIndexOf("."); //$NON-NLS-1$
if (end == -1)
end = fileName.length();
this.mainTypeName = fileName.substring(start, end).toCharArray();
this.encoding = null;
}
public BasicCompilationUnit(char[] contents, char[][] packageName, String fileName, String encoding) {
this(contents, packageName, fileName);
this.encoding = encoding;
}
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) {
try {
IJavaProject javaProject = javaElement.getJavaProject();
switch (javaElement.getElementType()) {
case IJavaElement.COMPILATION_UNIT:
IFile file = (IFile) javaElement.getResource();
if (file != null) {
this.encoding = file.getCharset();
break;
}
// if no file, then get project encoding
default:
IProject project = (IProject) javaProject.getResource();
if (project != null) {
this.encoding = project.getDefaultCharset();
}
break;
}
} catch (CoreException e1) {
this.encoding = null;
}
} else {
this.encoding = null;
}
}
public char[] getContents() {
if (this.contents != null)
return this.contents; // answer the cached source
// otherwise retrieve it
try {
return Util.getFileCharContent(new File(new String(fileName)), this.encoding);
} catch (IOException e) {
}
return CharOperation.NO_CHAR;
}
public char[] getFileName() {
return this.fileName;
}
public char[] getMainTypeName() {
return this.mainTypeName;
}
public char[][] getPackageName() {
return this.packageName;
}
public String toString() {
return "CompilationUnit: " + new String(fileName); //$NON-NLS-1$
}
}