2004-11-16 jrandom

* Clean up the propogation of i2psocket options so that various streaming
      libs can honor them more precisely

apps/ministreaming/java/src/net/i2p/client/streaming/I2PSocketOptionsImpl.java

@@ -0,0 +1,136 @@
+package net.i2p.client.streaming;
+
+import java.util.Iterator;
+import java.util.Properties;
+
+/**
+ * Define the configuration for streaming and verifying data on the socket.
+ *
+ */
+public class I2PSocketOptionsImpl implements I2PSocketOptions {
+    private long _connectTimeout;
+    private long _readTimeout;
+    private long _writeTimeout;
+    private int _maxBufferSize;
+    
+    public static final int DEFAULT_BUFFER_SIZE = 1024*64;
+    public static final int DEFAULT_WRITE_TIMEOUT = 60*1000;
+    public static final int DEFAULT_CONNECT_TIMEOUT = 60*1000;
+    
+    public I2PSocketOptionsImpl() {
+        this(System.getProperties());
+    }
+    
+    public I2PSocketOptionsImpl(I2PSocketOptions opts) {
+        this(System.getProperties());
+        if (opts != null) {
+            _connectTimeout = opts.getConnectTimeout();
+            _readTimeout = opts.getReadTimeout();
+            _writeTimeout = opts.getWriteTimeout();
+            _maxBufferSize = opts.getMaxBufferSize();
+        }
+    }
+
+    public I2PSocketOptionsImpl(Properties opts) {
+        init(opts);
+    }
+    
+    protected void init(Properties opts) {
+        _maxBufferSize = getInt(opts, PROP_BUFFER_SIZE, DEFAULT_BUFFER_SIZE);
+        _connectTimeout = getInt(opts, PROP_CONNECT_TIMEOUT, DEFAULT_CONNECT_TIMEOUT);
+        _readTimeout = getInt(opts, PROP_READ_TIMEOUT, -1);
+        _writeTimeout = getInt(opts, PROP_WRITE_TIMEOUT, DEFAULT_WRITE_TIMEOUT);
+    }
+    
+    protected int getInt(Properties opts, String name, int defaultVal) {
+        if (opts == null) return defaultVal;
+        String val = opts.getProperty(name);
+        if (val == null) {
+            return defaultVal;
+        } else {
+            try {
+                return Integer.parseInt(val);
+            } catch (NumberFormatException nfe) {
+                return defaultVal;
+            }
+        }
+    }
+    
+    /**
+     * How long we will wait for the ACK from a SYN, in milliseconds.
+     *
+     * @return milliseconds to wait, or -1 if we will wait indefinitely
+     */
+    public long getConnectTimeout() {
+        return _connectTimeout;
+    }
+
+    /**
+     * Define how long we will wait for the ACK from a SYN, in milliseconds.
+     *
+     */
+    public void setConnectTimeout(long ms) {
+        _connectTimeout = ms;
+    }
+    
+    /**
+     * What is the longest we'll block on the input stream while waiting
+     * for more data.  If this value is exceeded, the read() throws 
+     * InterruptedIOException
+     */
+    public long getReadTimeout() {
+        return _readTimeout;
+    }
+
+    /**
+     * What is the longest we'll block on the input stream while waiting
+     * for more data.  If this value is exceeded, the read() throws 
+     * InterruptedIOException
+     */
+    public void setReadTimeout(long ms) {
+        _readTimeout = ms;
+    }
+    
+    /**
+     * How much data will we accept that hasn't been written out yet.  After 
+     * this amount has been exceeded, subsequent .write calls will block until
+     * either some data is removed or the connection is closed.  If this is 
+     * less than or equal to zero, there is no limit (warning: can eat ram)
+     *
+     * @return buffer size limit, in bytes
+     */
+    public int getMaxBufferSize() {
+        return _maxBufferSize; 
+    }
+    
+    /**
+     * How much data will we accept that hasn't been written out yet.  After 
+     * this amount has been exceeded, subsequent .write calls will block until
+     * either some data is removed or the connection is closed.  If this is 
+     * less than or equal to zero, there is no limit (warning: can eat ram)
+     *
+     */
+    public void setMaxBufferSize(int numBytes) {
+        _maxBufferSize = numBytes; 
+    }
+    
+    /**
+     * What is the longest we'll block on the output stream while waiting
+     * for the data to flush.  If this value is exceeded, the write() throws 
+     * InterruptedIOException.  If this is less than or equal to zero, there 
+     * is no timeout.
+     */
+    public long getWriteTimeout() {
+        return _writeTimeout;
+    }
+
+    /**
+     * What is the longest we'll block on the output stream while waiting
+     * for the data to flush.  If this value is exceeded, the write() throws 
+     * InterruptedIOException.  If this is less than or equal to zero, there 
+     * is no timeout.
+     */
+    public void setWriteTimeout(long ms) {
+        _writeTimeout = ms;
+    }
+}