X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fnetconf%2Fnetconf-util%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fnetconf%2Futil%2Fhandler%2FNetconfEXIToMessageDecoder.java;fp=opendaylight%2Fnetconf%2Fnetconf-util%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fnetconf%2Futil%2Fhandler%2FNetconfEXIToMessageDecoder.java;h=e4c14abeaaf3dbc8bc463e2fbb93ef056c65cf8a;hp=0000000000000000000000000000000000000000;hb=7451e256fd9a658db243666bc7e734204519ceee;hpb=1e81fa45ab0ced56eef0518c7e7f87857724985b

diff --git a/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/handler/NetconfEXIToMessageDecoder.java b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/handler/NetconfEXIToMessageDecoder.java
new file mode 100644
index 0000000000..e4c14abeaa
--- /dev/null
+++ b/opendaylight/netconf/netconf-util/src/main/java/org/opendaylight/controller/netconf/util/handler/NetconfEXIToMessageDecoder.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.netconf.util.handler;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufInputStream;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.ByteToMessageDecoder;
+
+import java.io.InputStream;
+import java.util.List;
+
+import javax.xml.transform.dom.DOMResult;
+import javax.xml.transform.sax.SAXTransformerFactory;
+import javax.xml.transform.sax.TransformerHandler;
+
+import org.opendaylight.controller.netconf.api.NetconfMessage;
+import org.openexi.sax.EXIReader;
+import org.w3c.dom.Document;
+import org.xml.sax.InputSource;
+
+import com.google.common.base.Preconditions;
+
+public final class NetconfEXIToMessageDecoder extends ByteToMessageDecoder {
+    private static final SAXTransformerFactory saxTransformerFactory = (SAXTransformerFactory)SAXTransformerFactory.newInstance();
+
+    // FIXME: is this needed?
+    //    private static final SAXParserFactory saxParserFactory;
+    //    static {
+    //        saxParserFactory = SAXParserFactory.newInstance();
+    //        saxParserFactory.setNamespaceAware(true);
+    //    }
+
+    private final NetconfEXICodec codec;
+
+    public NetconfEXIToMessageDecoder(final NetconfEXICodec codec) {
+        this.codec = Preconditions.checkNotNull(codec);
+    }
+
+    @Override
+    protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
+        /*
+         * Note that we could loop here and process all the messages, but we can't do that.
+         * The reason is <stop-exi> operation, which has the contract of immediately stopping
+         * the use of EXI, which means the next message needs to be decoded not by us, but rather
+         * by the XML decoder.
+         */
+        final DOMResult result = new DOMResult();
+        final EXIReader r = codec.getReader();
+
+        final TransformerHandler transformerHandler = saxTransformerFactory.newTransformerHandler();
+        transformerHandler.setResult(result);
+        r.setContentHandler(transformerHandler);
+
+        try (final InputStream is = new ByteBufInputStream(in)) {
+            r.parse(new InputSource(is));
+        }
+        out.add(new NetconfMessage((Document) result.getNode()));
+    }
+}