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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
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package com.sun.enterprise.tools.apt;

import javax.annotation.processing.ProcessingEnvironment;
import javax.tools.StandardLocation;
import java.io.IOException;
import java.io.Writer;
import java.util.Set;

/**
 * State file for annotaton processor, 1 per service type, maintains
 * the list of implementors of that service type.
 * 
 */
final class ServiceFileInfo {

    private final String serviceName;
    private Set implementors;
    private Writer writer = null;

    public ServiceFileInfo(String serviceName, Set initialImplementors) {
        this.serviceName = serviceName;
        this.implementors = initialImplementors;
    }

    public boolean isDirty() {
        return writer!=null;
    }

    public void createFile(ProcessingEnvironment env) throws IOException {
        // create the file at this time.
        if (writer==null) {
            writer = env.getFiler().createResource(StandardLocation.SOURCE_OUTPUT, "META-INF/services", serviceName).openWriter();
        }
    }

    public String getServiceName() {
        return serviceName;
    }

    public Set getImplementors() {
        return implementors;
    }

    public Writer getWriter() {
        return writer;
    }
}