/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 1997-2007 Sun Microsystems, Inc. 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.html * or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt. * Sun designates this particular file as subject to the "Classpath" exception * as provided by Sun in the GPL Version 2 section of the License file that * accompanied this code.  If applicable, add the following below the License * Header, with the fields enclosed by brackets [] replaced by your own * identifying information: "Portions Copyrighted [year] * [name of copyright owner]" * * Contributor(s): * * If you wish your version of this file to be governed by only the CDDL or * 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 * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above.  However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. *//* * @(#)ContentType.java	1.10 07/05/04 */package javax.mail.internet;import javax.mail.*;import java.util.*;import java.io.*;/** * This class represents a MIME ContentType value. It provides * methods to parse a ContentType string into individual components * and to generate a MIME style ContentType string. * * @version 1.10, 07/05/04 * @author  John Mani */public class ContentType {    private String primaryType;	// primary type    private String subType;	// subtype    private ParameterList list;	// parameter list    /**     * No-arg Constructor.     */    public ContentType() { }    /**     * Constructor.     *     * @param	primaryType	primary type     * @param	subType	subType     * @param	list	ParameterList     */    public ContentType(String primaryType, String subType, 			ParameterList list) {	this.primaryType = primaryType;	this.subType = subType;	this.list = list;    }    /**     * Constructor that takes a Content-Type string. The String     * is parsed into its constituents: primaryType, subType     * and parameters. A ParseException is thrown if the parse fails.      *     * @param	s	the Content-Type string.     * @exception	ParseException if the parse fails.     */    public ContentType(String s) throws ParseException {	HeaderTokenizer h = new HeaderTokenizer(s, HeaderTokenizer.MIME);	HeaderTokenizer.Token tk;	// First "type" ..	tk = h.next();	if (tk.getType() != HeaderTokenizer.Token.ATOM)	    throw new ParseException();	primaryType = tk.getValue();	// The '/' separator ..	tk = h.next();	if ((char)tk.getType() != '/')	    throw new ParseException();	// Then "subType" ..	tk = h.next();	if (tk.getType() != HeaderTokenizer.Token.ATOM)	    throw new ParseException();	subType = tk.getValue();	// Finally parameters ..	String rem = h.getRemainder();	if (rem != null)	    list = new ParameterList(rem);    }    /**     * Return the primary type.     * @return the primary type     */    public String getPrimaryType() {	return primaryType;    }    /**     * Return the subType.     * @return the subType     */    public String getSubType() {	return subType;    }    /**     * Return the MIME type string, without the parameters.     * The returned value is basically the concatenation of     * the primaryType, the '/' character and the secondaryType.     *     * @return the type     */    public String getBaseType() {	return primaryType + '/' + subType;    }    /**     * Return the specified parameter value. Returns <code>null</code>     * if this parameter is absent.     * @return	parameter value     */    public String getParameter(String name) {	if (list == null)	    return null;	return list.get(name);    }    /**     * Return a ParameterList object that holds all the available      * parameters. Returns null if no parameters are available.     *     * @return	ParameterList     */    public ParameterList getParameterList() {	return list;    }    /**     * Set the primary type. Overrides existing primary type.     * @param	primaryType	primary type     */    public void setPrimaryType(String primaryType) {	this.primaryType = primaryType;    }    /**     * Set the subType.  Replaces the existing subType.     * @param	subType	the subType     */    public void setSubType(String subType) {	this.subType = subType;    }    /**     * Set the specified parameter. If this parameter already exists,     * it is replaced by this new value.     *     * @param	name	parameter name     * @param	value	parameter value     */    public void setParameter(String name, String value) {	if (list == null)	    list = new ParameterList();	list.set(name, value);    }    /**     * Set a new ParameterList.     * @param	list	ParameterList     */    public void setParameterList(ParameterList list) {	this.list = list;    }    /**     * Retrieve a RFC2045 style string representation of     * this Content-Type. Returns <code>null</code> if     * the conversion failed.     *     * @return	RFC2045 style string     */    public String toString() {	if (primaryType == null || subType == null) // need both	    return null;	StringBuffer sb = new StringBuffer();	sb.append(primaryType).append('/').append(subType);	if (list != null)            // append the parameter list             // use the length of the string buffer + the length of            // the header name formatted as follows "Content-Type: "	    sb.append(list.toString(sb.length() + 14));		return sb.toString();    }    /**     * Match with the specified ContentType object. This method     * compares <strong>only the <code>primaryType</code> and      * <code>subType</code> </strong>. The parameters of both operands     * are ignored. <p>     *     * For example, this method will return <code>true</code> when     * comparing the ContentTypes for <strong>"text/plain"</strong>     * and <strong>"text/plain; charset=foobar"</strong>.     *     * If the <code>subType</code> of either operand is the special     * character '*', then the subtype is ignored during the match.      * For example, this method will return <code>true</code> when      * comparing the ContentTypes for <strong>"text/plain"</strong>      * and <strong>"text/*" </strong>     *     * @param   cType	ContentType to compare this against     */    public boolean match(ContentType cType) {	// Match primaryType	if (!primaryType.equalsIgnoreCase(cType.getPrimaryType()))	    return false;		String sType = cType.getSubType();	// If either one of the subTypes is wildcarded, return true	if ((subType.charAt(0) == '*') || (sType.charAt(0) == '*'))	    return true;		// Match subType	if (!subType.equalsIgnoreCase(sType))	    return false;	return true;    }    /**     * Match with the specified content-type string. This method     * compares <strong>only the <code>primaryType</code> and      * <code>subType</code> </strong>.     * The parameters of both operands are ignored. <p>     *     * For example, this method will return <code>true</code> when     * comparing the ContentType for <strong>"text/plain"</strong>     * with <strong>"text/plain; charset=foobar"</strong>.     *     * If the <code>subType</code> of either operand is the special      * character '*', then the subtype is ignored during the match.      * For example, this method will return <code>true</code> when      * comparing the ContentType for <strong>"text/plain"</strong>      * with <strong>"text/*" </strong>     */    public boolean match(String s) {	try {	    return match(new ContentType(s));	} catch (ParseException pex) {	    return false;	}    }}