forked from I2P_Developers/i2p.i2p
zzz
65484510c6
Rewrite Base64, HeaderLine, and QuotedPrintable decoders Rewrite and expansion of ReadBuffer class and utilities for streams Rewrite Mail and MailPart to parse the headers only once Rewrite MailPart parser MailPart parser rewrite skips over the data without reading into memory or decoding MailPart decoder rewrite to decode stream-to-stream ReadBuffer becomes Buffer interface with multiple implementations Logging and debugging tweaks
92 lines
1.8 KiB
Java
92 lines
1.8 KiB
Java
package i2p.susi.util;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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/**
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* Buffer backed by a byte array.
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* Use for small amounts of data only.
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*
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* @since 0.9.34
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*/
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public class MemoryBuffer implements Buffer {
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private ByteArrayOutputStream _baos;
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private byte content[];
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private final int _size;
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public MemoryBuffer() {
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this(4096);
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}
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public MemoryBuffer(int size) {
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_size = size;
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}
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/**
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* @return new ByteArrayInputStream
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*/
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public synchronized InputStream getInputStream() throws IOException {
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if (content == null)
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throw new IOException("no data");
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return new ByteArrayInputStream(content);
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}
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/**
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* @return new or existing ByteArrayOutputStream
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*/
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public synchronized OutputStream getOutputStream() {
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if (_baos == null)
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_baos = new ByteArrayOutputStream(_size);
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return _baos;
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}
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public void readComplete(boolean success) {}
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/**
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* Deletes the data if success is false
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*/
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public synchronized void writeComplete(boolean success) {
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if (success) {
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if (content == null)
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content = _baos.toByteArray();
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} else {
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content = null;
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}
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_baos = null;
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}
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/**
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* Current size.
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*/
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public synchronized int getLength() {
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if (content != null)
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return content.length;
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if (_baos != null)
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return _baos.size();
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return 0;
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}
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/**
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* @return 0 always
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*/
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public int getOffset() {
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return 0;
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}
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/**
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* @return content if writeComplete(true) was called, otherwise null
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*/
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public byte[] getContent() {
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return content;
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}
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@Override
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public String toString() {
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return "SB " + (content == null ? "empty" : content.length + " bytes");
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}
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}
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