aboutsummaryrefslogtreecommitdiff
path: root/src/share/classes/com/sun/org/apache/bcel/internal/util/ClassLoaderRepository.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/share/classes/com/sun/org/apache/bcel/internal/util/ClassLoaderRepository.java')
-rw-r--r--src/share/classes/com/sun/org/apache/bcel/internal/util/ClassLoaderRepository.java157
1 files changed, 157 insertions, 0 deletions
diff --git a/src/share/classes/com/sun/org/apache/bcel/internal/util/ClassLoaderRepository.java b/src/share/classes/com/sun/org/apache/bcel/internal/util/ClassLoaderRepository.java
new file mode 100644
index 0000000..eec10f4
--- /dev/null
+++ b/src/share/classes/com/sun/org/apache/bcel/internal/util/ClassLoaderRepository.java
@@ -0,0 +1,157 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+package com.sun.org.apache.bcel.internal.util;
+
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ * if any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ * "Apache BCEL" must not be used to endorse or promote products
+ * derived from this software without prior written permission. For
+ * written permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ * "Apache BCEL", nor may "Apache" appear in their name, without
+ * prior written permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+import java.io.*;
+
+import java.util.Map;
+import java.util.HashMap;
+
+import com.sun.org.apache.bcel.internal.classfile.*;
+
+/**
+ * The repository maintains information about which classes have
+ * been loaded.
+ *
+ * It loads its data from the ClassLoader implementation
+ * passed into its constructor.
+ *
+ * @see com.sun.org.apache.bcel.internal.Repository
+ *
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @author David Dixon-Peugh
+ */
+public class ClassLoaderRepository
+ implements Repository
+{
+ private java.lang.ClassLoader loader;
+ private HashMap loadedClasses =
+ new HashMap(); // CLASSNAME X JAVACLASS
+
+ public ClassLoaderRepository( java.lang.ClassLoader loader ) {
+ this.loader = loader;
+ }
+
+ /**
+ * Store a new JavaClass into this Repository.
+ */
+ public void storeClass( JavaClass clazz ) {
+ loadedClasses.put( clazz.getClassName(),
+ clazz );
+ clazz.setRepository( this );
+ }
+
+ /**
+ * Remove class from repository
+ */
+ public void removeClass(JavaClass clazz) {
+ loadedClasses.remove(clazz.getClassName());
+ }
+
+ /**
+ * Find an already defined JavaClass.
+ */
+ public JavaClass findClass( String className ) {
+ if ( loadedClasses.containsKey( className )) {
+ return (JavaClass) loadedClasses.get( className );
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Lookup a JavaClass object from the Class Name provided.
+ */
+ public JavaClass loadClass( String className )
+ throws ClassNotFoundException
+ {
+ String classFile = className.replace('.', '/');
+
+ JavaClass RC = findClass( className );
+ if (RC != null) { return RC; }
+
+ try {
+ InputStream is =
+ loader.getResourceAsStream( classFile + ".class" );
+
+ if(is == null) {
+ throw new ClassNotFoundException(className + " not found.");
+ }
+
+ ClassParser parser = new ClassParser( is, className );
+ RC = parser.parse();
+
+ storeClass( RC );
+
+ return RC;
+ } catch (IOException e) {
+ throw new ClassNotFoundException( e.toString() );
+ }
+ }
+
+ public JavaClass loadClass(Class clazz) throws ClassNotFoundException {
+ return loadClass(clazz.getName());
+ }
+
+ /** Clear all entries from cache.
+ */
+ public void clear() {
+ loadedClasses.clear();
+ }
+}