Author: slotia
Date: 2009-04-02 11:28:16 -0700 (Thu, 02 Apr 2009)
New Revision: 16436
Added:
core3/io-impl/trunk/src/main/java/org/cytoscape/io/internal/util/CyProxyRegistryImpl.java
Log:
Added CyProxyRegistryImpl
Added:
core3/io-impl/trunk/src/main/java/org/cytoscape/io/internal/util/CyProxyRegistryImpl.java
===================================================================
---
core3/io-impl/trunk/src/main/java/org/cytoscape/io/internal/util/CyProxyRegistryImpl.java
2009-04-02 16:32:54 UTC (rev 16435)
+++
core3/io-impl/trunk/src/main/java/org/cytoscape/io/internal/util/CyProxyRegistryImpl.java
2009-04-02 18:28:16 UTC (rev 16436)
@@ -0,0 +1,97 @@
+package org.cytoscape.io.internal.util;
+
+import org.cytoscape.io.util.CyProxyRegistry;
+
+import java.net.Proxy;
+import java.net.ProxySelector;
+import java.net.URI;
+import java.net.SocketAddress;
+import java.io.IOException;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.ArrayList;
+import java.util.List;
+
+
+/**
+ * Implementation for <code>CyProxySelector</code> and
<code>CyProxyRegistry</code>.
+ *
+ * <p>
+ * If a <code>URI</code>'s scheme is not specified by <code>register</code>,
+ * this class will fall back on the JVM's default <code>ProxySelector</code>.
+ * This is done because the JVM's <code>ProxySelector</code> can look up
+ * the System's properties' proxy settings for us.
+ * </p>
+ *
+ * <p>
+ * An instance of this class will register itself as
<code>ProxySelector</code>'s
+ * default. That way, one can call
<code>ProxySelector.getDefault().select()</code>
+ * or <code>CyProxySelector.select()</code>, and they both produce the same
+ * <code>Proxy</code>. This is also done to catch calls to
+ * <code>connectFailed</code> and report it to the user.
+ * </p>
+ */
+public class CyProxyRegistryImpl implements CyProxyRegistry
+{
+ final Map<String,Proxy> schemes;
+ final ProxySelector JVMProxySelector;
+
+ public CyProxyRegistryImpl()
+ {
+ schemes = new HashMap<String,Proxy>();
+ JVMProxySelector = ProxySelector.getDefault();
+ ProxySelector.setDefault(new InternalProxySelector());
+ }
+
+ public void register(String scheme, Proxy proxy)
+ {
+ if (scheme == null || scheme.length() == 0)
+ throw new IllegalArgumentException("scheme cannot be
null or an empty string");
+ if (proxy == null)
+ throw new IllegalArgumentException("proxy cannot be
null");
+
+ schemes.put(scheme, proxy);
+ }
+
+ public Proxy select(URI uri)
+ {
+ if (uri == null)
+ throw new IllegalArgumentException("uri cannot be
null");
+
+ final String scheme = uri.getScheme();
+ if (scheme == null || scheme.length() == 0)
+ throw new IllegalArgumentException("uri's scheme cannot
be null or an empty string");
+
+ if (schemes.containsKey(scheme))
+ {
+ return schemes.get(scheme);
+ }
+ else
+ {
+ if (JVMProxySelector == null)
+ {
+ return Proxy.NO_PROXY;
+ }
+ else
+ {
+ return JVMProxySelector.select(uri).get(0);
+ }
+ }
+ }
+
+ class InternalProxySelector extends ProxySelector
+ {
+ public void connectFailed(URI uri, SocketAddress sa,
IOException ioe)
+ {
+ // TODO
+ }
+
+ public List<Proxy> select(URI uri)
+ {
+ List<Proxy> list = new ArrayList<Proxy>(1);
+ list.add(CyProxyRegistryImpl.this.select(uri));
+ return list;
+ }
+ }
+}
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