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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2012 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
 * http://glassfish.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:
 * Oracle designates this particular file as subject to the "Classpath"
 * 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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 * If you wish your version of this file to be governed by only the CDDL or
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 * 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.xml.ws.dump;

import com.sun.xml.ws.api.FeatureConstructor;
import org.glassfish.gmbal.ManagedAttribute;
import org.glassfish.gmbal.ManagedData;

import javax.xml.ws.WebServiceFeature;
import java.util.Queue;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;

/**
 *
 * @author Marek Potociar (marek.potociar at sun.com)
 */
@ManagedData
public final class MessageDumpingFeature extends WebServiceFeature {

    public static final String ID = "com.sun.xml.ws.messagedump.MessageDumpingFeature";
    //
    private static final Level DEFAULT_MSG_LOG_LEVEL = Level.FINE;
    //
    private final Queue messageQueue;
    private final AtomicBoolean messageLoggingStatus;
    private final String messageLoggingRoot;
    private final Level messageLoggingLevel;

    public MessageDumpingFeature() {
        this(null, null, true);
    }

    public MessageDumpingFeature(String msgLogRoot, Level msgLogLevel, boolean storeMessages) {
        this.messageQueue =  (storeMessages) ? new java.util.concurrent.ConcurrentLinkedQueue() : null;
        this.messageLoggingStatus = new AtomicBoolean(true);
        this.messageLoggingRoot = (msgLogRoot != null && msgLogRoot.length() > 0) ? msgLogRoot : MessageDumpingTube.DEFAULT_MSGDUMP_LOGGING_ROOT;
        this.messageLoggingLevel = (msgLogLevel != null) ? msgLogLevel : DEFAULT_MSG_LOG_LEVEL;

        super.enabled = true;
    }

    public MessageDumpingFeature(boolean enabled) {
        // this constructor is here just to satisfy JAX-WS specification requirements
        this();
        super.enabled = enabled;
    }

    @FeatureConstructor({"enabled", "messageLoggingRoot", "messageLoggingLevel", "storeMessages"})
    public MessageDumpingFeature(boolean enabled, String msgLogRoot, String msgLogLevel, boolean storeMessages) {
        // this constructor is here just to satisfy JAX-WS specification requirements
        this(msgLogRoot, Level.parse(msgLogLevel), storeMessages);
        
        super.enabled = enabled;
    }

    @Override
    @ManagedAttribute
    public String getID() {
        return ID;
    }

    public String nextMessage() {
        return (messageQueue != null) ? messageQueue.poll() : null;
    }

    public void enableMessageLogging() {
        messageLoggingStatus.set(true);
    }

    public void disableMessageLogging() {
        messageLoggingStatus.set(false);
    }

    @ManagedAttribute
    public boolean getMessageLoggingStatus() {
        return messageLoggingStatus.get();
    }

    @ManagedAttribute
    public String getMessageLoggingRoot() {
        return messageLoggingRoot;
    }

    @ManagedAttribute
    public Level getMessageLoggingLevel() {
        return messageLoggingLevel;
    }

    boolean offerMessage(String message) {
        return (messageQueue != null) ? messageQueue.offer(message) : false;
    }
}