capnproto-java-rpc/runtime/src/main/java/org/capnproto/BufferedWritableByteChannelWrapper.java

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2014-07-01 00:24:06 +00:00
package org.capnproto;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.WritableByteChannel;
public final class BufferedWritableByteChannelWrapper implements BufferedWritableByteChannel {
public final WritableByteChannel inner;
public final ByteBuffer buf;
public BufferedWritableByteChannelWrapper(WritableByteChannel w) {
this.inner = w;
this.buf = ByteBuffer.allocate(8192);
}
public final int write(ByteBuffer buf) throws IOException {
int available = this.buf.remaining();
int size = buf.remaining();
if (size <= available) {
this.buf.put(buf);
} else if (size <= this.buf.capacity()) {
//# Too much for this buffer, but not a full buffer's worth,
//# so we'll go ahead and copy.
//this.buf.put(buf); // XXX
//this.inner.write();
} else {
//# Writing so much data that we might as well write
//# directly to avoid a copy.
}
throw new Error("unimplemented");
}
public final ByteBuffer getWriteBuffer() {
return this.buf;
}
public final void close() throws IOException {
this.inner.close();
}
public final boolean isOpen() {
return this.inner.isOpen();
}
}