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/*
* Conditions Of Use
*
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain.  As a result, a formal
* license is not needed to use the software.
*
* This software is provided by NIST as a service and is expressly
* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY.  NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
*
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*
* .
*
*/
/*******************************************************************************
* Product of NIST/ITL Advanced Networking Technologies Division (ANTD).        *
*******************************************************************************/
package gov.nist.javax.sip.header;

import javax.sip.address.URI;

import gov.nist.javax.sip.address.*;

/**
 * RequestLine of SIP Request.
 *
 * @version 1.2 $Revision: 1.9 $ $Date: 2010-05-06 14:07:49 $
 * @author M. Ranganathan
 */
public class RequestLine extends SIPObject implements SipRequestLine {

    /**
     * Comment for serialVersionUID
     */
    private static final long serialVersionUID = -3286426172326043129L;

    /** uri field. Note that this can be a SIP URI or a generic URI
    * like tel URI.
     */
    protected GenericURI uri;

    /** method field.
     */
    protected String method;

    /** sipVersion field
     */
    protected String sipVersion;

    /** Default constructor
     */
    public RequestLine() {
        sipVersion = "SIP/2.0";
    }

   
    /** Encode the request line as a String.
    *
     * @return requestLine encoded as a string.
     */
    public String encode() {
        return encode(new StringBuilder()).toString();
    }

    public StringBuilder encode(StringBuilder buffer) {
        if (method != null) {
            buffer.append(method);
            buffer.append(SP);
        }
        if (uri != null) {
            uri.encode(buffer);
            buffer.append(SP);
        }
        buffer.append(sipVersion);
        buffer.append(NEWLINE);
        return buffer;
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#getUri()
     */
    public GenericURI getUri() {
        return uri;
    }

    /** Constructor given the request URI and the method.
    */
    public RequestLine(GenericURI requestURI, String method) {
        this.uri = requestURI;
        this.method = method;
        this.sipVersion = "SIP/2.0";
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#getMethod()
     */
    public String getMethod() {
        return method;
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#getSipVersion()
     */
    public String getSipVersion() {
        return sipVersion;
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#setUri(gov.nist.javax.sip.address.GenericURI)
     */
    public void setUri(URI uri) {
        this.uri = (GenericURI)uri;
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#setMethod(java.lang.String)
     */
    public void setMethod(String method) {
        this.method = method;
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#setSipVersion(java.lang.String)
     */
    public void setSipVersion(String version) {
        this.sipVersion = version;
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#getVersionMajor()
     */
    public String getVersionMajor() {
        if (sipVersion == null)
            return null;
        String major = null;
        boolean slash = false;
        for (int i = 0; i < sipVersion.length(); i++) {
            if (sipVersion.charAt(i) == '.')
                break;
            if (slash) {
                if (major == null)
                    major = "" + sipVersion.charAt(i);
                else
                    major += sipVersion.charAt(i);
            }
            if (sipVersion.charAt(i) == '/')
                slash = true;
        }
        return major;
    }

    /* (non-Javadoc)
     * @see gov.nist.javax.sip.header.SipRequestLine#getVersionMinor()
     */
    public String getVersionMinor() {
        if (sipVersion == null)
            return null;
        String minor = null;
        boolean dot = false;
        for (int i = 0; i < sipVersion.length(); i++) {
            if (dot) {
                if (minor == null)
                    minor = "" + sipVersion.charAt(i);
                else
                    minor += sipVersion.charAt(i);
            }
            if (sipVersion.charAt(i) == '.')
                dot = true;
        }
        return minor;
    }

    /**
    * Compare for equality.
    *
    *@param other object to compare with. We assume that all fields
    * are set.
    */
    public boolean equals(Object other) {
    	if(other == null) 
    		return false;
        if (this == other)
          return true;
        if (!other.getClass().equals(this.getClass())) {
            return false;
        }
        RequestLine that = (RequestLine) other;
        if (this.method == null) {
          if (that.method != null)
            return false;
        } else if (!this.method.equals(that.method))
          return false;
        if (this.sipVersion == null) {
          if (that.sipVersion != null)
            return false;
        } else if (!this.sipVersion.equals(that.sipVersion))
          return false;
        if (this.uri == null) {
          if (that.uri != null)
            return false;
        } else if (!this.uri.equals(that.uri))
          return false;
        return true;
    }

    public Object clone() {
        RequestLine retval = (RequestLine) super.clone();
        if (this.uri != null)
            retval.uri = (GenericURI) this.uri.clone();
        return retval;
    }
}


/*
 * $Log: not supported by cvs2svn $
 * Revision 1.8  2009/09/15 02:55:27  mranga
 * Issue number:  222
 * Add HeaderFactoryExt.createStatusLine(String) and HeaderFactoryExt.createRequestLine(String)
 * Allows users to easily parse SipFrag bodies (for example NOTIFY bodies
 * during call transfer).
 *
 * Revision 1.7  2009/07/17 18:57:36  emcho
 * Converts indentation tabs to spaces so that we have a uniform indentation policy in the whole project.
 *
 * Revision 1.6  2007/02/12 15:19:23  belangery
 * Changed the encode() and encodeBody() methods of SIP headers and basic classes to make them use the same StringBuilder instance during the encoding phase.
 *
 * Revision 1.5  2006/07/13 09:01:26  mranga
 * Issue number:
 * Obtained from:
 * Submitted by:  jeroen van bemmel
 * Reviewed by:   mranga
 * Moved some changes from jain-sip-1.2 to java.net
 *
 * CVS: ----------------------------------------------------------------------
 * CVS: Issue number:
 * CVS:   If this change addresses one or more issues,
 * CVS:   then enter the issue number(s) here.
 * CVS: Obtained from:
 * CVS:   If this change has been taken from another system,
 * CVS:   then name the system in this line, otherwise delete it.
 * CVS: Submitted by:
 * CVS:   If this code has been contributed to the project by someone else; i.e.,
 * CVS:   they sent us a patch or a set of diffs, then include their name/email
 * CVS:   address here. If this is your work then delete this line.
 * CVS: Reviewed by:
 * CVS:   If we are doing pre-commit code reviews and someone else has
 * CVS:   reviewed your changes, include their name(s) here.
 * CVS:   If you have not had it reviewed then delete this line.
 *
 * Revision 1.3  2006/06/19 06:47:26  mranga
 * javadoc fixups
 *
 * Revision 1.2  2006/06/16 15:26:28  mranga
 * Added NIST disclaimer to all public domain files. Clean up some javadoc. Fixed a leak
 *
 * Revision 1.1.1.1  2005/10/04 17:12:35  mranga
 *
 * Import
 *
 *
 * Revision 1.3  2005/04/16 20:38:50  dmuresan
 * Canonical clone() implementations for the GenericObject and GenericObjectList hierarchies
 *
 * Revision 1.2  2004/01/22 13:26:29  sverker
 * Issue number:
 * Obtained from:
 * Submitted by:  sverker
 * Reviewed by:   mranga
 *
 * Major reformat of code to conform with style guide. Resolved compiler and javadoc warnings. Added CVS tags.
 *
 * CVS: ----------------------------------------------------------------------
 * CVS: Issue number:
 * CVS:   If this change addresses one or more issues,
 * CVS:   then enter the issue number(s) here.
 * CVS: Obtained from:
 * CVS:   If this change has been taken from another system,
 * CVS:   then name the system in this line, otherwise delete it.
 * CVS: Submitted by:
 * CVS:   If this code has been contributed to the project by someone else; i.e.,
 * CVS:   they sent us a patch or a set of diffs, then include their name/email
 * CVS:   address here. If this is your work then delete this line.
 * CVS: Reviewed by:
 * CVS:   If we are doing pre-commit code reviews and someone else has
 * CVS:   reviewed your changes, include their name(s) here.
 * CVS:   If you have not had it reviewed then delete this line.
 *
 */




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