125 lines
2.9 KiB
Java
125 lines
2.9 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.classLoader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.InputStream;
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import java.util.Iterator;
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import com.ibm.wala.util.collections.NonNullSingletonIterator;
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import com.ibm.wala.util.debug.Assertions;
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import com.ibm.wala.util.debug.UnimplementedError;
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/**
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* A module which is a wrapper around a file in the filesystem
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*/
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public abstract class FileModule implements Module, ModuleEntry {
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private final File file;
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private final Module container;
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public FileModule(File f, Module container) throws IllegalArgumentException {
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if (f == null) {
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throw new IllegalArgumentException("f is null");
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}
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this.file = f;
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this.container = container;
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if (!f.exists()) {
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throw new IllegalArgumentException("bad file " + f.getAbsolutePath());
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}
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}
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public String getAbsolutePath() {
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return file.getAbsolutePath();
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}
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/*
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* @see com.ibm.wala.classLoader.Module#getEntries()
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*/
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@Override
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public Iterator<ModuleEntry> getEntries() {
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return new NonNullSingletonIterator<ModuleEntry>(this);
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}
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@Override
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public int hashCode() {
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return file.hashCode();
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}
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@Override
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public boolean equals(Object o) {
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if (o == null) {
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return false;
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}
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if (o.getClass().equals(getClass())) {
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FileModule other = (FileModule) o;
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return getName().equals(other.getName());
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} else {
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return false;
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}
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}
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/*
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* @see com.ibm.wala.classLoader.ModuleEntry#getName()
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*/
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@Override
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public String getName() {
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return file.getName();
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}
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/*
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* @see com.ibm.wala.classLoader.ModuleEntry#getInputStream()
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*/
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@Override
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public InputStream getInputStream() {
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try {
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if (!file.exists()) {
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System.err.println("PANIC: File does not exist! " + file);
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}
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return new FileInputStream(file);
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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Assertions.UNREACHABLE("could not read " + file);
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return null;
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}
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}
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/*
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* @see com.ibm.wala.classLoader.ModuleEntry#isModuleFile()
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*/
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@Override
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public boolean isModuleFile() {
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return false;
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}
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/**
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* @return Returns the file.
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*/
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public File getFile() {
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return file;
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}
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@Override
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public Module asModule() throws UnimplementedError {
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Assertions.UNREACHABLE("implement me");
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return null;
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}
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@Override
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public Module getContainer() {
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return container;
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}
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}
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