59 lines
1.9 KiB
Java
59 lines
1.9 KiB
Java
/******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*****************************************************************************/
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package com.ibm.wala.cast.loader;
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import com.ibm.wala.classLoader.ClassLoaderFactory;
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import com.ibm.wala.classLoader.IClassLoader;
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import com.ibm.wala.ipa.callgraph.AnalysisScope;
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import com.ibm.wala.ipa.cha.IClassHierarchy;
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import com.ibm.wala.types.ClassLoaderReference;
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import com.ibm.wala.util.debug.Assertions;
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/**
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* Abstract {@link ClassLoaderFactory} for languages modeled as having a single
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* class loader. Subclasses provide the logic to create the classloader.
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*/
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public abstract class SingleClassLoaderFactory implements ClassLoaderFactory {
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/**
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* for caching the class loader, so we don't initialize more than once
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*/
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private IClassLoader THE_LOADER = null;
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@Override
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public IClassLoader getLoader(ClassLoaderReference classLoaderReference, IClassHierarchy cha, AnalysisScope scope) {
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if (THE_LOADER == null) {
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THE_LOADER = makeTheLoader(cha);
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try {
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THE_LOADER.init(scope.getModules(getTheReference()));
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} catch (java.io.IOException e) {
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Assertions.UNREACHABLE();
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}
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}
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assert classLoaderReference.equals(getTheReference());
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return THE_LOADER;
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}
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public IClassLoader getTheLoader() {
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return THE_LOADER;
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}
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/**
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* get the reference to the single class loader for the language
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*/
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public abstract ClassLoaderReference getTheReference();
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protected abstract IClassLoader makeTheLoader(IClassHierarchy cha);
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}
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