99 lines
2.4 KiB
Java
99 lines
2.4 KiB
Java
/*
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Copyright (C) 2013 Jeroen Frijters
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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Jeroen Frijters
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jeroen@frijters.net
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*/
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package java.util.zip;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.InputStream;
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import java.io.IOException;
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import java.util.LinkedHashMap;
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final class ClassStubZipEntry extends ZipEntry
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{
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private final String zipFilePath;
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ClassStubZipEntry(String zipFilePath, String name)
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{
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super(name);
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this.zipFilePath = zipFilePath;
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}
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private File getFile()
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{
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return new File(new File(zipFilePath).getParentFile().getParentFile(), "classes" + File.separator + name);
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}
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public long getSize()
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{
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if (size == -1)
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{
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size = getFile().length();
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}
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return size;
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}
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public long getCompressedSize()
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{
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if (csize == -1)
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{
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csize = getSize();
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}
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return csize;
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}
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public long getCrc()
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{
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if (crc == -1)
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{
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crc = computeCrc();
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}
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return crc;
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}
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private long computeCrc()
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{
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try (InputStream in = getInputStream())
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{
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CRC32 crc = new CRC32();
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int b;
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while ((b = in.read()) != -1)
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{
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crc.update(b);
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}
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return crc.getValue();
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}
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catch (IOException _)
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{
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return 0;
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}
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}
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final InputStream getInputStream() throws IOException
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{
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return new FileInputStream(getFile());
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}
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static native void expandIkvmClasses(ZipFile zipFile, LinkedHashMap<String, ZipEntry> entries);
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}
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