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Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.openxml4j.util;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
* A ZipEntrySource wrapper around a ZipFile.
* Should be as low in terms of memory as a
* normal ZipFile implementation is.
*/
public class ZipFileZipEntrySource implements ZipEntrySource {
private ZipFile zipArchive;
public ZipFileZipEntrySource(ZipFile zipFile) {
this.zipArchive = zipFile;
}
public void close() throws IOException {
if(zipArchive != null) {
zipArchive.close();
}
zipArchive = null;
}
public Enumeration getEntries() {
if (zipArchive == null)
throw new IllegalStateException("Zip File is closed");
return zipArchive.entries();
}
public InputStream getInputStream(ZipEntry entry) throws IOException {
if (zipArchive == null)
throw new IllegalStateException("Zip File is closed");
return zipArchive.getInputStream(entry);
}
}