/*
 * Copyright (c) 1999, 2006, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

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());
 }

}