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/* * @(#)MLetMBean.java 4.23 06/06/15 * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package javax.management.loading; import java.net.URL; import java.io.InputStream; import java.io.IOException; import java.util.Set; import java.util.Enumeration; import javax.management.*; /** * Exposes the remote management interface of the MLet * MBean. * * @since 1.5 */ public interface MLetMBean { /** * Loads a text file containing MLET tags that define the MBeans * to be added to the MBean server. The location of the text file is * specified by a URL. The text file is read using the UTF-8 * encoding. The MBeans specified in the MLET file will be * instantiated and registered in the MBean server. * * @param url The URL of the text file to be loaded as String object. * * @return A set containing one entry per MLET tag in the m-let * text file loaded. Each entry specifies either the * ObjectInstance for the created MBean, or a throwable object * (that is, an error or an exception) if the MBean could not be * created. * * @exception ServiceNotFoundException One of the following errors * has occurred: The m-let text file does not contain an MLET tag, * the m-let text file is not found, a mandatory attribute of the * MLET tag is not specified, the value of url is malformed. */ public Set<Object> getMBeansFromURL(String url) throws ServiceNotFoundException; /** * Loads a text file containing MLET tags that define the MBeans * to be added to the MBean server. The location of the text file is * specified by a URL. The text file is read using the UTF-8 * encoding. The MBeans specified in the MLET file will be * instantiated and registered in the MBean server. * * @param url The URL of the text file to be loaded as URL object. * * @return A set containing one entry per MLET tag in the m-let * text file loaded. Each entry specifies either the * ObjectInstance for the created MBean, or a throwable object * (that is, an error or an exception) if the MBean could not be * created. * * @exception ServiceNotFoundException One of the following errors * has occurred: The m-let text file does not contain an MLET tag, * the m-let text file is not found, a mandatory attribute of the * MLET tag is not specified, the value of url is null. */ public Set<Object> getMBeansFromURL(URL url) throws ServiceNotFoundException; /** * Appends the specified URL to the list of URLs to search for classes and * resources. * * @param url the URL to add. */ public void addURL(URL url) ; /** * Appends the specified URL to the list of URLs to search for classes and * resources. * * @param url the URL to add. * * @exception ServiceNotFoundException The specified URL is malformed. */ public void addURL(String url) throws ServiceNotFoundException; /** * Returns the search path of URLs for loading classes and resources. * This includes the original list of URLs specified to the constructor, * along with any URLs subsequently appended by the addURL() method. * * @return the list of URLs. */ public URL[] getURLs(); /** Finds the resource with the given name. * A resource is some data (images, audio, text, etc) that can be accessed by class code in a way that is * independent of the location of the code. * The name of a resource is a "/"-separated path name that identifies the resource. * * @param name The resource name * * @return An URL for reading the resource, or null if the resource could not be found or the caller doesn't have adequate privileges to get the * resource. */ public URL getResource(String name); /** Returns an input stream for reading the specified resource. The search order is described in the documentation for * getResource(String). * * @param name The resource name * * @return An input stream for reading the resource, or null if the resource could not be found * */ public InputStream getResourceAsStream(String name); /** * Finds all the resources with the given name. A resource is some * data (images, audio, text, etc) that can be accessed by class * code in a way that is independent of the location of the code. * The name of a resource is a "/"-separated path name that * identifies the resource. * * @param name The resource name. * * @return An enumeration of URL to the resource. If no resources * could be found, the enumeration will be empty. Resources that * cannot be accessed will not be in the enumeration. * * @exception IOException if an I/O exception occurs when * searching for resources. */ public Enumeration<URL> getResources(String name) throws IOException; /** * Gets the current directory used by the library loader for * storing native libraries before they are loaded into memory. * * @return The current directory used by the library loader. * * @see #setLibraryDirectory * * @throws UnsupportedOperationException if this implementation * does not support storing native libraries in this way. */ public String getLibraryDirectory(); /** * Sets the directory used by the library loader for storing * native libraries before they are loaded into memory. * * @param libdir The directory used by the library loader. * * @see #getLibraryDirectory * * @throws UnsupportedOperationException if this implementation * does not support storing native libraries in this way. */ public void setLibraryDirectory(String libdir); }