/* * Copyright (c) 1999, 2006, Oracle and/or its affiliates. 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.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.management.loading;  // java import import java.net.URL;import java.net.MalformedURLException;import java.util.Collections;import java.util.List;import java.util.Map; /** * This class represents the contents of the <CODE>MLET</CODE> tag. * It can be consulted by a subclass of {@link MLet} that overrides * the {@link MLet#check MLet.check} method. * * @since 1.6 */public class MLetContent {      /**     * A map of the attributes of the <CODE>MLET</CODE> tag     * and their values.     */    private Map<String,String> attributes;     /**     * An ordered list of the TYPE attributes that appeared in nested     * &lt;PARAM&gt; tags.     */    private List<String> types;     /**     * An ordered list of the VALUE attributes that appeared in nested     * &lt;PARAM&gt; tags.     */    private List<String> values;     /**     * The MLet text file's base URL.     */    private URL documentURL;    /**     * The base URL.     */    private URL baseURL;      /**     * Creates an <CODE>MLet</CODE> instance initialized with attributes read     * from an <CODE>MLET</CODE> tag in an MLet text file.     *     * @param url The URL of the MLet text file containing the     * <CODE>MLET</CODE> tag.     * @param attributes A map of the attributes of the <CODE>MLET</CODE> tag.     * The keys in this map are the attribute names in lowercase, for     * example <code>codebase</code>.  The values are the associated attribute     * values.     * @param types A list of the TYPE attributes that appeared in nested     * &lt;PARAM&gt; tags.     * @param values A list of the VALUE attributes that appeared in nested     * &lt;PARAM&gt; tags.     */    public MLetContent(URL url, Map<String,String> attributes,                       List<String> types, List<String> values) {        this.documentURL = url;        this.attributes = Collections.unmodifiableMap(attributes);        this.types = Collections.unmodifiableList(types);        this.values = Collections.unmodifiableList(values);         // Initialize baseURL        //        String att = getParameter("codebase");        if (att != null) {            if (!att.endsWith("/")) {                att += "/";            }            try {                baseURL = new URL(documentURL, att);            } catch (MalformedURLException e) {                // OK : Move to next block as baseURL could not be initialized.            }        }        if (baseURL == null) {            String file = documentURL.getFile();            int i = file.lastIndexOf('/');            if (i >= 0 && i < file.length() - 1) {                try {                    baseURL = new URL(documentURL, file.substring(0, i + 1));                } catch (MalformedURLException e) {                    // OK : Move to next block as baseURL could not be initialized.                }            }        }        if (baseURL == null)            baseURL = documentURL;     }     // GETTERS AND SETTERS    //--------------------     /**     * Gets the attributes of the <CODE>MLET</CODE> tag.  The keys in     * the returned map are the attribute names in lowercase, for     * example <code>codebase</code>.  The values are the associated     * attribute values.     * @return A map of the attributes of the <CODE>MLET</CODE> tag     * and their values.     */    public Map<String,String> getAttributes() {        return attributes;    }     /**     * Gets the MLet text file's base URL.     * @return The MLet text file's base URL.     */    public URL getDocumentBase() {        return documentURL;    }     /**     * Gets the code base URL.     * @return The code base URL.     */    public URL getCodeBase() {        return baseURL;    }     /**     * Gets the list of <CODE>.jar</CODE> files specified by the <CODE>ARCHIVE</CODE>     * attribute of the <CODE>MLET</CODE> tag.     * @return A comma-separated list of <CODE>.jar</CODE> file names.     */    public String getJarFiles() {        return getParameter("archive");    }     /**     * Gets the value of the <CODE>CODE</CODE>     * attribute of the <CODE>MLET</CODE> tag.     * @return The value of the <CODE>CODE</CODE>     * attribute of the <CODE>MLET</CODE> tag.     */    public String getCode() {        return getParameter("code");    }     /**     * Gets the value of the <CODE>OBJECT</CODE>     * attribute of the <CODE>MLET</CODE> tag.     * @return The value of the <CODE>OBJECT</CODE>     * attribute of the <CODE>MLET</CODE> tag.     */    public String getSerializedObject() {        return getParameter("object");    }     /**     * Gets the value of the <CODE>NAME</CODE>     * attribute of the <CODE>MLET</CODE> tag.     * @return The value of the <CODE>NAME</CODE>     * attribute of the <CODE>MLET</CODE> tag.     */    public String getName() {        return getParameter("name");    }      /**     * Gets the value of the <CODE>VERSION</CODE>     * attribute of the <CODE>MLET</CODE> tag.     * @return The value of the <CODE>VERSION</CODE>     * attribute of the <CODE>MLET</CODE> tag.     */    public String getVersion() {        return getParameter("version");    }     /**     * Gets the list of values of the <code>TYPE</code> attribute in     * each nested &lt;PARAM&gt; tag within the <code>MLET</code>     * tag.     * @return the list of types.     */    public List<String> getParameterTypes() {        return types;    }     /**     * Gets the list of values of the <code>VALUE</code> attribute in     * each nested &lt;PARAM&gt; tag within the <code>MLET</code>     * tag.     * @return the list of values.     */    public List<String> getParameterValues() {        return values;    }     /**     * Gets the value of the specified     * attribute of the <CODE>MLET</CODE> tag.     *     * @param name A string representing the name of the attribute.     * @return The value of the specified     * attribute of the <CODE>MLET</CODE> tag.     */    private String getParameter(String name) {        return attributes.get(name.toLowerCase());    } }