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Copy pathSourceCodewriter.java
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82 lines (70 loc) · 2.75 KB
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/**
* Copyright (C) 2010-2011 eBusiness Information, Excilys Group
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed To in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.googlecode.androidannotations.generation;
import java.io.IOException;
import java.io.OutputStream;
import javax.annotation.processing.Filer;
import javax.annotation.processing.FilerException;
import javax.annotation.processing.Messager;
import javax.tools.JavaFileObject;
import javax.tools.Diagnostic.Kind;
import com.sun.codemodel.CodeWriter;
import com.sun.codemodel.JPackage;
public class SourceCodewriter extends CodeWriter {
private final Filer filer;
private final Messager message;
private static final VoidOutputStream VOID_OUTPUT_STREAM = new VoidOutputStream();
private static class VoidOutputStream extends OutputStream {
@Override
public void write(int arg0) throws IOException {
// Do nothing
}
}
public SourceCodewriter(Filer filer, Messager message) {
this.filer = filer;
this.message = message;
}
@Override
public OutputStream openBinary(JPackage pkg, String fileName) throws IOException {
String qualifiedClassName = toQualifiedClassName(pkg, fileName);
message.printMessage(Kind.NOTE, "Generating source file: " + qualifiedClassName);
try {
JavaFileObject sourceFile = filer.createSourceFile(qualifiedClassName);
return sourceFile.openOutputStream();
} catch (FilerException e) {
message.printMessage(Kind.NOTE, "Could not generate source file for " + qualifiedClassName + ", message: " + e.getMessage());
/*
* This exception is expected, when some files are created twice. We
* cannot delete existing files, unless using a dirty hack. Files a
* created twice when the same file is created from different
* annotation rounds. Happens when renaming classes, and for
* Background executor. It also probably means I didn't fully
* understand how annotation processing works. If anyone can point
* me out...
*/
return VOID_OUTPUT_STREAM;
}
}
private String toQualifiedClassName(JPackage pkg, String fileName) {
int suffixPosition = fileName.lastIndexOf('.');
String className = fileName.substring(0, suffixPosition);
String qualifiedClassName = pkg.name() + "." + className;
return qualifiedClassName;
}
@Override
public void close() throws IOException {
}
}