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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007-2017 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
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 * or LICENSE.txt.  See the License for the specific
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 * file and include the License file at LICENSE.txt.
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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;
    }
}