testgetresource.java

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/*
 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/*
 * @test
 * @bug 6380018 6449798
 * @summary Test Filer.getResource
 * @author  Joseph D. Darcy
 * @build TestGetResource
 * @compile -processor TestGetResource -proc:only -Aphase=write TestGetResource.java
 * @compile -processor TestGetResource -proc:only -Aphase=read  TestGetResource.java
 */

import java.util.Set;
import java.util.Map;
import javax.annotation.processing.*;
import javax.lang.model.SourceVersion;
import static javax.lang.model.SourceVersion.*;
import javax.lang.model.element.*;
import javax.lang.model.util.*;
import static javax.lang.model.util.ElementFilter.*;
import static javax.tools.Diagnostic.Kind.*;
import static javax.tools.StandardLocation.*;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * Test basic functionality of the Filer.getResource method.  On the
 * first run of the annotation processor, write out a resource file
 * and on the second run read it in.
 */
@SupportedAnnotationTypes("*")
@SupportedOptions("phase")
public class TestGetResource extends AbstractProcessor {
    private Messager messager;
    private Filer filer;
    private Map<String,String> options;

    private static String CONTENTS = "Hello World.";
    private static String PKG = "";
    private static String RESOURCE_NAME = "Resource1";

    public boolean process(Set<? extends TypeElement> annotations,
                           RoundEnvironment roundEnv) {
	try {
	    if (!roundEnv.processingOver()) {
		String phase = options.get("phase");

		if (phase.equals("write")) {
		    PrintWriter pw = 
			new PrintWriter(filer.createResource(CLASS_OUTPUT, PKG, RESOURCE_NAME).openWriter());
		    pw.print(CONTENTS);
		    pw.close();
		} else if (phase.equals("read")) {
		    String contents = filer.getResource(CLASS_OUTPUT,
						       PKG,
						       RESOURCE_NAME).getCharContent(false).toString();
		    if (!contents.equals(CONTENTS))
			throw new RuntimeException("Expected \n\t" + CONTENTS +
						   "\nbut instead got \n\t" + 
						   contents);
		    // Now try to open the file for writing
		    filer.createResource(CLASS_OUTPUT,
					 PKG,
					 RESOURCE_NAME);
		} else {
		    throw new RuntimeException("Unexpected phase: " + phase);
		}
	    }
	} catch(IOException ioe) {
	    throw new RuntimeException(ioe);
	}
	return false;
    }
    
    public SourceVersion getSupportedSourceVersion() {
        return SourceVersion.latest();
    }

    public void init(ProcessingEnvironment processingEnv) {
        super.init(processingEnv);
        messager = processingEnv.getMessager();
        filer    = processingEnv.getFiler();
	options  = processingEnv.getOptions();
    }
}