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view src/cachingfilter/ProxyServletOutputStream.java @ 63:4987e1a38a6c default tip
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author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Wed, 28 Aug 2024 15:34:42 -0600 |
parents | 7ecd1a4ef557 |
children |
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package cachingfilter; import java.io.IOException; import java.io.OutputStream; import java.io.ByteArrayOutputStream; import javax.servlet.ServletOutputStream; public abstract class ProxyServletOutputStream extends ServletOutputStream { private static final int BUFFER_SIZE = 100; private OutputStream out = new OutputStream() { private final ByteArrayOutputStream buf = new ByteArrayOutputStream(); public void write(int b) throws IOException { buf.write(b); check(); } public void write(byte b[]) throws IOException { buf.write(b); check(); } public void write(byte b[], int off, int len) throws IOException { buf.write(b,off,len); check(); } public void flush() throws IOException { setOut(); out.flush(); } public void close() throws IOException { setOut(); out.close(); } void check() throws IOException { if( buf.size() >= BUFFER_SIZE ) setOut(); } private void setOut() throws IOException { out = newOutputStream(); out.write(buf.toByteArray()); } }; protected abstract OutputStream newOutputStream() throws IOException; public void write(int b) throws IOException { out.write(b); } public void write(byte b[]) throws IOException { out.write(b); } public void write(byte b[], int off, int len) throws IOException { out.write(b,off,len); } public void flush() throws IOException { out.flush(); } public void close() throws IOException { out.close(); } }