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/*******************************************************************************
* Copyright (c) 2001, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.j2ee.commonarchivecore.internal.helpers;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import org.eclipse.jst.j2ee.commonarchivecore.internal.CommonArchiveResourceHandler;
import org.eclipse.jst.j2ee.commonarchivecore.internal.File;
import org.eclipse.jst.j2ee.commonarchivecore.internal.exception.ArchiveRuntimeException;
public class NestedArchiveIterator extends FileIteratorImpl {
protected ZipInputStream zipInputStream;
protected ZipEntry currentEntry;
static class WrapperInputStream extends FilterInputStream {
/**
* @param in
*/
public WrapperInputStream(InputStream in) {
super(in);
// TODO Auto-generated constructor stub
}
/*
* (non-Javadoc)
*
* @see java.io.FilterInputStream#close()
*/
public void close() throws IOException {
//do nothing because we want to prevent the clients from closing the zip
}
}
/**
* NestedArchiveIterator constructor comment.
*/
public NestedArchiveIterator(List theFiles, ZipInputStream stream) {
super(theFiles);
zipInputStream = stream;
}
public InputStream getInputStream(File aFile) throws java.io.IOException, java.io.FileNotFoundException {
if (!aFile.getURI().equals(currentEntry.getName()))
throw new java.io.IOException(CommonArchiveResourceHandler.Internal_Error__Iterator_o_EXC_); // = "Internal Error: Iterator out of sync with zip entries"
return new WrapperInputStream(zipInputStream);
}
public File next() {
File next = super.next();
try {
do {
currentEntry = zipInputStream.getNextEntry();
} while (currentEntry.isDirectory());
} catch (java.io.IOException ex) {
throw new ArchiveRuntimeException(CommonArchiveResourceHandler.Error_iterating_the_archiv_EXC_, ex); // = "Error iterating the archive"
}
return next;
}
}
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