/*

 * Copyright 2005 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.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * 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.

 */

package com.sun.xml.internal.stream.events ;

import javax.xml.stream.events.StartDocument;

import javax.xml.stream.Location;

import javax.xml.stream.XMLStreamConstants;

/** Implementation of StartDocumentEvent.

 *

 * @author Neeraj Bajaj Sun Microsystems,Inc.

 * @author K.Venugopal Sun Microsystems,Inc.

 *

 */

public class StartDocumentEvent extends DummyEvent

implements StartDocument {

    protected String fSystemId;

    protected String fEncodingScheam;

    protected boolean fStandalone;

    protected String fVersion;

    private boolean fEncodingSchemeSet;

    private boolean fStandaloneSet;

    public StartDocumentEvent() {

        this("UTF-8","1.0",true,null);

    }

    public StartDocumentEvent(String encoding){

        this(encoding,"1.0",true,null);

    }

    public StartDocumentEvent(String encoding, String version){

        this(encoding,version,true,null);

    }

    public StartDocumentEvent(String encoding, String version, boolean standalone){

        this(encoding,version,standalone,null);

    }

    public StartDocumentEvent(String encoding, String version, boolean standalone,Location loc){

        init();

        this.fEncodingScheam = encoding;

        this.fVersion = version;

        this.fStandalone = standalone;

        this.fEncodingSchemeSet = false;

        this.fStandaloneSet = false;

        if (loc != null) {

            this.fLocation = loc;

        }

    }

    protected void init() {

        setEventType(XMLStreamConstants.START_DOCUMENT);

    }

    public String getSystemId() {

        if(fLocation == null )

            return "";

        else

            return fLocation.getSystemId();

    }

    public String getCharacterEncodingScheme() {

        return fEncodingScheam;

    }

    public boolean isStandalone() {

        return fStandalone;

    }

    public String getVersion() {

        return fVersion;

    }

    public void setStandalone(boolean flag) {

        fStandaloneSet = true;

        fStandalone = flag;

    }

    public void setStandalone(String s) {

        fStandaloneSet = true;

        if(s == null) {

            fStandalone = true;

            return;

        }

        if(s.equals("yes"))

            fStandalone = true;

        else

            fStandalone = false;

    }

    public boolean encodingSet() {

        return fEncodingSchemeSet;

    }

    public boolean standaloneSet() {

        return fStandaloneSet;

    }

    public void setEncoding(String encoding) {

        fEncodingScheam = encoding;

    }

    void setDeclaredEncoding(boolean value){

        fEncodingSchemeSet = value;

    }

    public void setVersion(String s) {

        fVersion = s;

    }

    void clear() {

        fEncodingScheam = "UTF-8";

        fStandalone = true;

        fVersion = "1.0";

        fEncodingSchemeSet = false;

        fStandaloneSet = false;

    }

    public String toString() {

        String s = "<?xml version=\"" + fVersion + "\"";

        s = s + " encoding='" + fEncodingScheam + "'";

        if(fStandaloneSet) {

            if(fStandalone)

                s = s + " standalone='yes'?>";

            else

                s = s + " standalone='no'?>";

        } else {

            s = s + "?>";

        }

        return s;

    }

    public boolean isStartDocument() {

        return true;

    }

}