adolphenom
98 lines
4.3 KiB
Java
98 lines
4.3 KiB
Java
package mars.mips.dump;
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import mars.*;
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import mars.util.*;
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import java.util.*;
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import java.lang.reflect.*;
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/*
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Copyright (c) 2003-2008, Pete Sanderson and Kenneth Vollmar
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Developed by Pete Sanderson (psanderson@otterbein.edu)
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and Kenneth Vollmar (kenvollmar@missouristate.edu)
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject
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to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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(MIT license, http://www.opensource.org/licenses/mit-license.html)
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*/
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/****************************************************************************/
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/* This class provides functionality to bring external memory dump format definitions
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* into MARS. This is adapted from the ToolLoader class, which is in turn adapted
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* from Bret Barker's GameServer class from the book "Developing Games In Java".
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*/
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public class DumpFormatLoader {
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private static final String CLASS_PREFIX = "mars.mips.dump.";
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private static final String DUMP_DIRECTORY_PATH = "mars/mips/dump";
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private static final String SYSCALL_INTERFACE = "DumpFormat.class";
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private static final String CLASS_EXTENSION = "class";
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private static ArrayList formatList = null;
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/**
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* Dynamically loads dump formats into an ArrayList. This method is adapted from
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* the loadGameControllers() method in Bret Barker's GameServer class.
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* Barker (bret@hypefiend.com) is co-author of the book "Developing Games
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* in Java". Also see the ToolLoader and SyscallLoader classes elsewhere in MARS.
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*/
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public ArrayList loadDumpFormats() {
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// The list will be populated only the first time this method is called.
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if (formatList == null) {
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formatList = new ArrayList();
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// grab all class files in the dump directory
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ArrayList candidates = FilenameFinder.getFilenameList(this.getClass( ).getClassLoader(),
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DUMP_DIRECTORY_PATH, CLASS_EXTENSION);
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for( int i = 0; i < candidates.size(); i++) {
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String file = (String) candidates.get(i);
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try {
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// grab the class, make sure it implements DumpFormat, instantiate, add to list
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String formatClassName = CLASS_PREFIX+file.substring(0, file.indexOf(CLASS_EXTENSION)-1);
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Class clas = Class.forName(formatClassName);
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if (DumpFormat.class.isAssignableFrom(clas) &&
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!Modifier.isAbstract(clas.getModifiers()) &&
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!Modifier.isInterface(clas.getModifiers()) ) {
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formatList.add(clas.newInstance());
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}
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}
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catch (Exception e) {
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System.out.println("Error instantiating DumpFormat from file " + file + ": "+e);
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}
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}
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}
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return formatList;
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}
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public static DumpFormat findDumpFormatGivenCommandDescriptor(ArrayList formatList, String formatCommandDescriptor) {
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DumpFormat match = null;
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for (int i=0; i<formatList.size(); i++) {
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if (((DumpFormat)formatList.get(i)).getCommandDescriptor().equals(formatCommandDescriptor)) {
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match = (DumpFormat) formatList.get(i);
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break;
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}
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}
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return match;
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}
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}
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